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Author SHA1 Message Date
Relism 6a6431c528 Merge pull request 'fix(ext-jackson): a constraint says what it wants in its own words' (#22) from fix/validation/constraint-messages into master
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2026-09-23 14:51:28 +00:00
Zakaria El OrcheandClaude Opus 5 491553e9f5 fix(ext-jackson): a constraint says what it wants in its own words 
The compiler ignored the message a constraint declares and always wrote its
own, so a failed @Pattern answered the caller with a regex. It now uses the
annotation's message whenever one is set, and keeps the plain description for
jakarta's default, which is a resource bundle key and not something to put in
front of whoever sent the request.

This is what makes moving a check out of a service and onto the type it
belongs to cost nothing: the wording moves with it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-23 14:51:16 +00:00
Relism dd0455c6d1 Merge pull request 'fix(ext-openapi): an answer's media type is the handler's, not the body's' (#21) from fix/openapi/answer-media-type into master
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2026-09-23 14:42:14 +00:00
Zakaria El OrcheandClaude Opus 5 60dd4eab6a fix(ext-openapi): an answer's media type is the handler's, not the body's 
@Consumes says what a route reads. It was also deciding what the document said
a route answers, through a JSON default nothing could override: a handler that
takes a JSON body is not thereby a handler that answers JSON.

@Produces now says that, beside @Consumes and as descriptive as it is — on the
handler, or once on a base class. Every response takes its media type from it,
JSON when nothing declares one, and the error object stays JSON because that is
what Flash answers a failure with whatever the route produces.

Content loses contentType with it. One handler answers in one format and a
status code does not change that, so the media type was in the wrong place; a
response with no schema and no return type to infer one from is a response
with no body, which is what a 204 was using it to say.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-23 14:41:56 +00:00
Relism 2f06ca7c1d Merge pull request 'feat: typed bodies, injected services, one Jackson module per format' (#20) from feature/handlers/typed-bodies-and-injected-services into master
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2026-09-23 14:11:17 +00:00
Zakaria El OrcheandClaude Opus 5 2fbe65fcc5 feat(ext-openapi): document what the code already says 
Every class-based route is documented now, annotated or not: a route without
@ApiOperation used to be dropped with a warning, which made the document lie by
omission.

Read off the handler: the request body from the type it declares (or from the
new @RequestBody, for one that reads the body itself), the success schema from
the most specific handle it implements, and the media type from @Consumes.

Failures are described too. Any 4xx or 5xx without an explicit schema documents
the error object Flash actually answers with, written once under
components.schemas.Error — before this, a declared 4xx inherited the success
schema, which was simply wrong. And an answer two or more operations give
identically is hoisted into components.responses and referenced, so the 401 of
every guarded route appears once rather than on every path.

@Content gained an example, and the schema registry moved into its own class.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-23 13:31:28 +00:00
Zakaria El OrcheandClaude Opus 5 adcd6376b6 feat(ext-jackson): one module per data format, bodies checked on the way in 
flash-ext-jackson and flash-ext-validation become three modules:

- flash-ext-jackson-core: the Codec (one mapper, body/write/writeView),
  JacksonHandler, the outbound marshalling, and the constraint engine that
  used to be flash-ext-validation
- flash-ext-jackson-json: Json, JsonExtension, JsonHandler
- flash-ext-jackson-xml: Xml, XmlExtension, XmlHandler

Every Jackson format is the same databind model behind a different factory, so
the annotations, the constraints and the published schema are the same for all
of them: only the mapper and the content type differ, and that is all a format
module says. A route picks its format by the handler it extends — there is no
negotiation and nothing to configure.

A typed body is now always verified against its own type's jakarta
constraints, whatever the format: malformed is a 400, a broken constraint is a
422, and neither reaches the handler. The validator was already allocation-free
and stays so; validating is no longer something an application remembers to do.

bodyFrom is gone. body has the streaming semantics, because the request's
stream is reused per connection while bytes() allocates the whole body: one
name, the path that does not allocate. JacksonExtension is JsonExtension, and
autoJson() is auto().

The root POM now manages every module of this build, so anything composing
Flash imports it once and never names a version again.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-23 13:31:28 +00:00
Zakaria El OrcheandClaude Opus 5 ef4740f26d feat(core): a service a handler asks for, and a body typed in its signature 
Two things every handler was writing by hand.

@Inject on a field is filled inside bind, before onInit, once per handler at
boot: the request path still reads a field. The service is looked up by the
field's exact declared type; a static or final field is refused, and a type
nothing provides fails the boot naming the field. onInit stays for what has to
be computed, or for a service that may not be there.

BodyHandler<B> puts the body type in the signature — handle(req, res, body) —
and leaves reading it to the format. bodyTypeOf resolves that type argument
through a whole chain of bases, so tooling can read off a class what a route
takes. @Consumes says in which media type, inherited from the base class that
implements the reading, and is descriptive: the router does not enforce it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-23 13:31:13 +00:00
Relism 8353033cb1 Merge pull request 'feat: Vite extension and Maven plugin; data pools close on stop' (#19) from feature/ext-vite/replace-web-bundler into master
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2026-09-22 16:27:46 +00:00
Zakaria El Orche fd96d67fca Merge branch 'feature/ext-data/close-pool-on-stop' into feature/ext-vite/replace-web-bundler 2026-09-22 16:25:16 +00:00
Zakaria El OrcheandClaude Opus 5 003fd6d1f0 feat(ext-vite): recognise navigations by Sec-Fetch-Mode, read every header in place 
A path that is no file falls back to index.html when the request is a navigation:
Sec-Fetch-Mode: navigate, or an Accept naming text/html for older clients. That check,
Accept-Encoding and If-None-Match are all matched on the header bytes through the new
Request.headerView(name), so serving still allocates nothing. navigationOnly(false)
drops the check for an app that wants every GET miss to get the page.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-22 16:16:27 +00:00
Zakaria El OrcheandClaude Opus 5 680bbca8c7 feat(ext-vite): gzip at build time, fall back to the index only for navigations 
The Maven plugin now writes a maximally compressed .gz beside every text file of 1 KB
and more, so the server compresses nothing and boot only reads the files: about 50 ms
for Glossa's 500. Hashed files under assets/ skip the ETag, which nothing ever asks for.

A path that is no file gets index.html only when the request's Accept names text/html,
as a browser navigation does. Everything else, an API call to a missing route included,
gets the app's own 404 instead of the index, and a dot in a client route no longer
matters. The base path itself always serves the app.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-22 15:54:19 +00:00
Zakaria El OrcheandClaude Opus 5 580417e952 feat(ext-vite): replace the web bundler with a Vite extension and its Maven plugin 
flash-ext-vite runs Vite's dev server in DEV and otherwise serves the build from the
classpath, read straight from the directory or jar with no manifest. The Maven plugin
flash-ext-vite-maven-plugin builds the frontend at prepare-package and packages it
there, so mvn package makes a jar that serves its own frontend and mvn test needs no
Node. Three overrides remain (root, devPort, basePath); the package manager is read
from the nearest lockfile.

Serving fixes what the bundler got wrong: Vite's hashed files under assets/ are
cached as immutable instead of revalidated, HEAD reports the real Content-Length, a
missing asset is a 404 instead of the index, 304s carry ETag and Cache-Control, and
gzip respects q=0 and is prepared at boot. Every response header is pre-encoded, so
serving allocates nothing, which is what Response.type(byte[]) is for. Vite stops
with the app through onClose, and a lockfile change reinstalls before restarting.

The modes, strategies, logging and command-safety options, the asset-source
abstraction, the manifest and the Jackson dependency are gone: 1,535 lines of main
code become 480, plus 84 for the plugin.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-22 15:47:28 +00:00
Zakaria El OrcheandClaude Opus 5 d6c018242f feat(ext-data): close the connection pool when the app stops 
TxManager is AutoCloseable and releases what it was built on: JdbcTxManager its data
source when closeable, HibernateTxManager its session factory and then the data source
Hibernate was handed, which Hibernate itself never closes. DataExtension registers the
close as an onClose callback, so a stopped app no longer leaves its pool connected.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-22 14:02:35 +00:00
Relism 6d44f9e7b1 Merge pull request 'feat(ext-security): add an OAuth 2.1 authorization server' (#18) from feature/ext-security/oauth-server into master
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2026-09-22 11:42:26 +00:00
Zakaria El OrcheandClaude Opus 5 f28fc43150 feat(ext-security): add an OAuth 2.1 authorization server 
flash-ext-security-oauth-server issues RFC 9068 access tokens (code + PKCE S256,
CIMD and DCR clients, RFC 8707 resources, rotating refresh tokens) for resources on
the application's own origin. Around it: SecurityExtension resolves a configured
origin instead of X-Forwarded-* headers, mechanisms expose schemes() and a route can
be restricted to some of them, McpConfig.mechanisms(...) uses that, OIDC bearers must
be typed at+jwt, and PublicUrl guards outbound fetches against internal addresses.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-22 11:39:09 +00:00
Relism 7f225e0faf Merge pull request 'refactor(ext-oidc): replace auth modules with security extensions' (#17) from feature/ext-auth/split-oidc-into-auth-core into master
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Reviewed-on: #17
 2026-09-16 16:00:15 +00:00
Zakaria El Orche 86fafdb3d8 Merge remote-tracking branch 'origin/master' into feature/ext-auth/split-oidc-into-auth-core 
# Conflicts:
#	AGENTS.md
#	flash-extensions/pom.xml
#	pom.xml
 2026-09-16 15:54:54 +00:00
Zakaria El Orche e0795299fc refactor(ext-oidc): replace auth modules with security extensions 2026-09-16 15:54:19 +00:00
Zakaria El Orche 017c2443f4 feat(testing): support reusable request customizers 2026-09-16 15:54:10 +00:00
Zakaria El Orche b30a4af1d6 feat(core): add request helpers for security flows 2026-09-16 15:54:10 +00:00
Zakaria El Orche 096098b33c fix(ext-openapi): allow contributors to enrich default responses 2026-09-16 15:54:10 +00:00
Zakaria El Orche 829b9bf348 feat(ext-mcp): let applications put middleware on the MCP route, and document the auth split 
McpExtension built its middleware chain entirely internally, so a consumer had no
way to add rate limiting, audit logging or tracing to /mcp — routine on every other
Flash route. McpConfig.middleware(...) appends to the chain after the transport
guards and after whatever McpSecurity resolved to, so it composes with OAuth2
protection instead of replacing it, and never satisfies REQUIRED.

Docs: flash-ext-auth-core and flash-ext-auth-oidc both get a docs/ directory —
oidc had none at all, and its module README documented types that no longer exist.
Includes a migration table from flash-ext-oidc.
 2026-09-10 19:12:44 +00:00
Zakaria El Orche 9d39e24ccb refactor(ext-auth): generic sessions, shared annotation wiring, rename to flash-ext-auth-oidc 
AuthMiddleware.install(ctx, config, source) now owns the annotation processor and
the flash.auth.policy key, so a second credential source gets annotation-driven
authorization without copying the wiring. The key is public: an extension that
contributes middleware can order itself around authentication.

OidcSession becomes Session in auth-core, carrying claims, an expiry and an opaque
attribute map. OpenID Connect keeps its access, id and refresh tokens in that map
under its own keys, so renewal stays its business and core has no OAuth2 vocabulary
in it. isAccessTokenExpired() becomes isExpired(), with the 30s eager-renewal
window it always had and now a test for it.

flash-ext-oidc is renamed flash-ext-auth-oidc, matching cache-core/cache-caffeine
and data-core/data-hibernate.
 2026-09-10 19:06:15 +00:00
Zakaria El Orche c5be6ac7b8 refactor(ext-auth): extract flash-ext-auth-core out of flash-ext-oidc 
flash-ext-oidc has always held two things: the OpenID Connect protocol, and a
session/claims/authorization layer that is generic and was only ever fed by one
source. This splits them along Flash's own <domain>-core convention, the same
shape cache-core, data-core and view-core already use.

flash-ext-auth-core gets what never referenced the protocol — @Authenticated,
@RolesAllowed, @ScopesAllowed, ClaimsHolder, the claim matching, and the policy
compiled from annotations — under generic names: OidcUser is Claims, since it
never was more than a typed view over a claims map, and OidcAuthPolicy is
AuthPolicy. It was package-private while being the parameter type of a public
method, so the move also fixes that.

The new seam is CredentialSource: it resolves a request's claims, or rejects the
request the way its protocol says to. AuthMiddleware publishes the result and
matches roles and scopes against it. ClaimsHolder's writers stay package-private
— an implementation produces claims and core publishes them, so nothing outside
this module can put claims on a request that did not carry them.

flash-ext-oidc keeps discovery, JWKS, PKCE, the token endpoint, the login and
callback routes and the OpenAPI oauth2 contributor, and now registers
OidcCredentialSource. flash-ext-mcp still keys McpSecurity on finding that type
and not on AuthMiddleware: REQUIRED has to keep meaning "a real authorization
server is protecting this endpoint", not "something authenticates here".

The middleware key moves with the mechanism: flash.oidc.policy -> flash.auth.policy.

Breaking for consumers: imports move to dev.relism.flash.ext.auth, OidcMiddleware
becomes AuthMiddleware, ClaimsHolder.user()/get() become current()/map().
 2026-09-10 19:00:39 +00:00
Zakaria El Orche ea00182c7c test(ext-oidc): characterise claim matching before the auth-core split 
Pins the current behaviour of the role/scope matching that is about to move out
of OidcMiddleware: delimiter set for string claims, whole-entry comparison for
list claims, trimming, empty-requirement semantics under ALL vs ANY, and how a
claim path that walks into a non-map resolves. None of it is OIDC-specific and
none of it was covered directly.
 2026-09-10 18:48:10 +00:00
Relism 9892ad44b7 Merge pull request 'feat(ext-scheduler): add interval and cron background jobs' (#16) from feature/ext-scheduler/cron-and-interval-jobs into master
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2026-09-09 14:36:36 +00:00
Zakaria El OrcheandClaude Sonnet 5 4866624e73 Merge branch 'master' into feature/ext-scheduler/cron-and-interval-jobs 
Resolve conflicts in AGENTS.md, pom.xml and flash-extensions/pom.xml — master
had already picked up ext-validation and ext-cache-core/caffeine (merged after
this branch was cut); union kept alongside this branch's ext-scheduler entries.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-09-09 14:35:18 +00:00
Relism d3fe740e05 Merge pull request 'Feature/ext cache/core and caffeine' (#14) from feature/ext-cache/core-and-caffeine into master
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2026-09-09 14:29:29 +00:00
Zakaria El OrcheandClaude Sonnet 5 000cc79cca Merge branch 'master' into feature/ext-cache/core-and-caffeine 
Resolve conflicts in AGENTS.md, pom.xml and flash-extensions/pom.xml — both
sides added new module/scope/dependency entries in the same spot (ext-validation
from master, ext-cache-core/ext-cache-caffeine from this branch); union kept.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-09-09 14:28:12 +00:00
Relism bd899d52bb Merge pull request 'Feature/ext validation/request validation' (#15) from feature/ext-validation/request-validation into master
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Reviewed-on: #15
 2026-09-09 14:21:17 +00:00
Zakaria El OrcheandClaude Sonnet 5 4feabc45d5 fix(ext-view): clear cross-engine error, propagate globals across JteExtension builder chain 
- BaseViewExtension: wrap the ViewRuntimeBridge provider collision with a message
  naming the real constraint (one view engine per FlashApp) instead of the generic
  "duplicate provider" error.
- BaseViewExtension/JteExtension: carry registered globals across JteExtension's
  immutable settings builders (templateRoot/serveStatics/staticPrefix/withStaticCors/
  staticCors). addGlobal() called before any of those used to be silently dropped,
  since each builder method returned a fresh instance with an empty globals list.
- Correct flash-ext-view-jte docs (README, architecture.md, model-and-globals.md):
  globals merge flat with one typed @param per key, not under a global.* namespace
  like Thymeleaf — the docs previously claimed the same reserved namespace for both
  engines, which doesn't match JteRuntime's actual merge behavior.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-09-09 13:31:21 +00:00
Zakaria El Orche 9de2800a83 Merge branch 'feature/ext-cache/core-and-caffeine' into feature/extensions/validation-scheduler-cache 
# Conflicts:
#	AGENTS.md
#	flash-extensions/pom.xml
#	pom.xml
 2026-09-09 12:37:52 +00:00
Zakaria El Orche dbf057f493 Merge branch 'feature/ext-scheduler/cron-and-interval-jobs' into feature/extensions/validation-scheduler-cache 
# Conflicts:
#	AGENTS.md
#	flash-extensions/pom.xml
#	pom.xml
 2026-09-09 12:37:26 +00:00
Zakaria El OrcheandClaude Opus 5 24bb10175d feat(ext-cache-core): add the caching contract and a Caffeine backend 
Split the way flash-ext-data and flash-ext-view are: cache-core defines
Cache, CacheManager, CacheSpec and CacheStats and talks to nothing;
cache-caffeine implements them in process.

    users = require(CacheManager.class).build("users", spec -> spec
            .maxSize(10_000).ttl(Duration.ofMinutes(10)));

    return users.get(id, repo::findById);

get(key, loader) is the only shape most code needs and the only one that is
hard to get right: the loader runs once per key across concurrent callers
rather than each racing its own. A null result stores nothing, because caching
absence is a decision rather than a default.

build(name, spec) is idempotent per name, so two handlers wanting one cache get
one cache without coordinating who creates it. Disagreeing about the spec
throws rather than resolving to whichever handler initialised first, which is a
bug that only surfaces under load.

recordStats() is opt-in — counting is two atomic increments per lookup, and a
cache nobody measures should not pay for numbers nobody reads. Unmeasured
caches return CacheStats.DISABLED rather than zeroes that look like a cold
cache.

Caffeine rather than a hand-rolled LRU: for genuinely low traffic
ConcurrentHashMap::computeIfAbsent is one line and needs no module at all, and
this exists for when that stops being true. W-TinyLFU admission, striped
counters and amortised eviction are not a weekend's work, and getting them
wrong yields a cache slower than no cache. The adapter is deliberately thin —
every method delegates, adding no wrapper, copy or locking of its own.

Caches are dropped through FlashContext.onClose, so values do not outlive the
app holding them. Invisible with one app per process; immediate under test.

flash-ext-cache-redis is designed but not built, and has docs only — no module,
no pom, no source. An empty module that builds an empty jar is dead weight in
the reactor. The docs record what changes once the cache can fail: get() must
decide whether to fall through to the loader, values need a codec,
invalidateAll needs a key prefix that becomes wire contract, and eviction stats
stop meaning anything. Those are decisions that want a real second replica to
check them against.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 12:30:03 +00:00
Zakaria El OrcheandClaude Opus 5 5c163b7f8d feat(ext-scheduler): add interval and cron background jobs 
jobs.every(Duration.ofMinutes(5), reports::refresh);
    jobs.cron("0 0 3 * * *", archive::sweep);

One daemon platform thread keeps time; every job body runs on a virtual thread,
so a slow job delays nothing but its own next run and cannot occupy the timer.

Cron expressions compile once into a bitmask per field — a long for seconds and
minutes, an int for the rest — so matching an instant is a shift and a mask
rather than a parse or a set lookup. Next-fire advances by the largest unit
that cannot match instead of ticking second by second, so a yearly expression
resolves in a few dozen iterations rather than thirty million. Five or six
fields, ranges, steps, lists, named months and weekdays, both Sunday encodings,
and the standard union semantics when both day fields are restricted. A
malformed expression throws when the job is registered, not when it would have
fired.

Overlapping runs are skipped, and deliberately not configurable: two copies of
one job at once is a bug in every case anyone has needed, and a flag would only
let it be set wrongly. A skipped run logs how long the previous one has been
going.

A throwing job is logged and keeps its schedule. scheduleAtFixedRate cancels
the task on first exception, silently — a job that dies at 3am and is never
heard from again is the failure this avoids.

Shutdown goes through FlashContext.onClose, so app.stop() drains HTTP first,
then gives running jobs a grace period before forcing them down. Nothing runs
after the app stops. The grace period is the only knob.

Known ceiling, marked in the source: schedules are per-instance, so two
replicas run every job twice. A distributed lock should not exist until there
is a second replica.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 12:23:34 +00:00
Zakaria El OrcheandClaude Opus 5 f68e661296 feat(ext-validation): add request validation with compiled constraints 
Standard jakarta.validation annotations, compiled once per type into a flat
check table. No configuration: constraints come from the annotations already on
your types, and ValidationException extends HttpException with status 422 so
the default handler renders it without this extension registering anything.

    record CreateUser(@NotBlank @Size(max = 80) String name,
                      @Email String email,
                      @Min(18) int age) {}

    CreateUser dto = validation.body(req, CreateUser.class);

Annotations only — Hibernate Validator's engine is deliberately absent. It
resolves constraints reflectively per call and pulls ~2 MB plus EL, which is
the per-request cost this module exists to avoid. jakarta.validation-api is
~90 KB of annotations.

The passing path allocates nothing. Constraints resolve at first use into an
opcode plus operands cached in a ClassValue, so there is no map lookup and no
lock. Fields are read through MethodHandles adapted to an exact signature —
(Object)Object for references, (Object)long for primitive integrals — so
invokeExact neither boxes nor builds the argument array Field.get and
Method.invoke allocate. Checks are a flat array walked by a tableswitch rather
than a class hierarchy behind a virtual call. @Size reads a length the object
already knows and @Email scans with indexOf, because Pattern.matcher allocates
a matcher and two int arrays per call. Messages are pre-rendered at compile
time. The violation list and the exception exist only once something fails.

@Pattern is the marked exception: its regex compiles once but matcher()
allocates per call.

Constraints are read from declared fields, so records and plain classes take
one code path — a constraint on a record component propagates to its backing
field.

Jakarta null semantics are exact: only @NotNull rejects null.

flash-ext-openapi now mirrors the same annotations into the generated schema —
minLength, maxLength, minItems, minimum, maximum, pattern, format: email and
required — via an optional jakarta.validation dependency detected at boot. A
type declares its rules once and both the validator and the published contract
read them. An explicit @Schema still wins; the bridge only fills keys nobody
set, and without the annotations on the classpath the bridge class is never
loaded.

flash-ext-jackson is optional too: validate(value) works without it, only
body(req, type) needs a codec.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 12:20:33 +00:00
Zakaria El OrcheandClaude Opus 5 fe8c6ed162 fix(core): honour HttpException status in the default exception handler 
HttpException carries the status the caller meant, and its own javadoc says
extensions map it to a structured response — but nothing did. Every one reached
the catch-all and came back as 500, including the 400s that RequestHelper
raises for a malformed query param and that flash-ext-jackson raises for an
unparseable body. A handler doing the documented thing produced the wrong
status.

The default handler now renders HttpException at its own status, in both dev
and prod modes, with the message JSON-escaped. Not pre-encoded like JSON_404
and JSON_500: the message is per-exception, and a path that already unwound a
stack does not need the allocation shaved.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 12:20:33 +00:00
Zakaria El OrcheandClaude Opus 5 58bae41f7a docs(testing): document flash-testing and the limits it deliberately keeps 
README covers the application handle, requests and assertions, service
replacement, multi-server wiring, scope, WebSockets, configuration and the
teardown ordering.

limits.md records the seven things the harness cannot do and what to use for
each: TLS, HTTP/2, WebSocket over HTTP/2, malformed requests, response framing,
the flash core module's dependency cycle, and scoped services. Each is a
consequence of a real constraint rather than an unfinished feature, so writing
them down stops the next person rediscovering them one at a time.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 12:07:55 +00:00
Zakaria El OrcheandClaude Opus 5 7785712efe test(ext-web-bundler): migrate integration test to flash-testing 
Two frontend layouts, each laid out on disk inside its own application's
configure(). The harness runs that lazily at first access, so @TempDir is
populated by then and the server for whichever test is not running never boots.

Replaces three blocks of HttpRequest.newBuilder(URI.create(...)) per test with
single-line assertions. 98 to 60 code lines.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 11:05:06 +00:00
Zakaria El OrcheandClaude Opus 5 c02459dd7c test(ext-mcp): migrate integration and security suites to flash-testing 
McpExtensionIntegrationTest: 10 stateless JSON-RPC calls against one server
config, so one class-scoped server replaces a boot per test. 117 to 85 code
lines.

McpExtensionSecurityTest: the four server configurations it exercises — AUTO
without oidc, REQUIRED with a derived resource identifier, REQUIRED with an
explicit one, and REQUIRED with advertised scopes — become four named servers
sharing one FakeOidcProvider, replacing eight boots and a freePort() helper.
151 to 128 code lines. The boot-rejection test still builds its app directly:
a harness whose job is to boot an app is the wrong tool for asserting that
booting fails.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 11:05:06 +00:00
Zakaria El OrcheandClaude Opus 5 e0ad83eb2f test(core): read bound ports back from the app instead of guessing free ones 
Every integration test picked a port by opening ServerSocket(0), closing it and
reusing the number, which races anything else on the machine between the close
and the rebind. FlashApp.port() reports the port the listener actually bound,
so the guess is gone: 18 freePort() helpers deleted, 40 call sites now pass
port(0) and read the result back.

Two ServerSocket(0) uses remain and are correct. ConnectionRunnerTest accepts
on its socket rather than using it to pick a number. H2LoadMeasurementTest
hands its port to an external nghttpd process, which has no equivalent of
port() to read back; that one is now commented to say so.

HttpServerTlsTest's two-listener case reads both back through ports().

HttpServerTest and HttpServerConcurrencyTest also move from @BeforeEach to
@BeforeAll — every test in them is read-only against the same routes, so 11 and
3 boots respectively become 1. HttpServerConcurrencyTest's lazy-compile test
keeps building its own app, since a freshly compiled router is the thing it
tests. HttpServerTest now runs 11 tests in 0.06s.

The http2 interop suites (curl, nghttp, grpcurl, h2spec), the load measurement
and the soak test are skipped without their external binaries or system
property, so those edits are compile-verified here and exercised in CI.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 11:05:06 +00:00
Zakaria El OrcheandClaude Opus 5 1c207cf94c feat(testing): boot lazily instead of eagerly in beforeEach 
beforeEach called ensureStarted(), so every FlashTest field in a class booted
for every test whether or not that test touched it — a class holding four
servers paid for four boots per test. Booting is already lazy on first access,
so the hook was only ever forcing work forward.

Neither hook starts anything now. beforeAll still records that a static field
owns the class-scoped lifecycle, which is what keeps afterEach from tearing a
class-scoped server down after the first test.

This also lets an application read @TempDir inside configure(): JUnit populates
those during instance post-processing, before the first test body but after
extension beforeEach callbacks would have fired.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 11:05:06 +00:00
Zakaria El OrcheandClaude Opus 5 fa5a025c93 test(ext-mcp): migrate McpAuthPolicyTest to flash-testing 
First migration, chosen because it is the case that drove the harness design:
a Flash app plus a FakeOidcProvider, with tokens audience-bound to the app's
own port, so the port has to be readable after boot.

Drops the racy free-port dance, the hand-rolled HttpClient plumbing and the
per-test teardown; failures now report the response body. 120 to 106 code
lines, and what remains is tool-policy assertions rather than fixture code.

The two boot-rejection tests keep building their app directly — a harness whose
job is to boot an app is the wrong tool for asserting that booting fails — but
port(0) removes freePort() from those too.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 10:22:40 +00:00
Zakaria El OrcheandClaude Opus 5 424ca31b7a feat(testing): add flash-testing, a JUnit 5 harness for Flash applications 
Boots a real app on an OS-assigned port for a test class or a single test and
hands back a client pointed at it:

    @RegisterExtension
    static FlashTest app = FlashTest.of(new BlogApp())
            .mock(UserService.class, new InMemoryUserService());

    app.get("/api/users").expectStatus(200).expectBodyContains("alice");

A field rather than an annotation, because annotation values are compile-time
constants and so could never express a second server wired from the first —
FlashTest.of(new BlogApp(auth.baseUri())). Startup is lazy, so reading
baseUri() boots that server on the spot and declaration order does the wiring,
with no dependence on JUnit's extension ordering. A static field boots once per
class, a non-static field once per test; that is stock JUnit field semantics
rather than an option to configure.

Runs against a real loopback port instead of dispatching in-process. An
in-process dispatcher would be a third copy of the routing/handler/exception
sequence that Http1Connection and Http2StreamDispatcher already duplicate, kept
in sync by hand, and it would let a test pass while the status line,
content-length or HPACK encoding was broken.

mock() installs overrides as the last extension, after everything the
application and its extensions declare, so a fake always wins. Any object is
accepted, so a hand-written fake and a Mockito mock are equally welcome and
this module depends on no mocking library — only flash and junit-jupiter-api.

Teardown cancels the client before stopping the server: HttpClient holds
keep-alive sockets open and ServerLifecycle.stop() spins until the last one
closes, so the default 15s drain would otherwise be paid on every test class.
shutdownNow rather than close(), which blocks until every operation completes
and would hang on a leaked WebSocket.

Lives at the top level, not under flash-extensions/, which holds things you
install() onto an app; this carries junit-jupiter-api at compile scope and
nothing installable should.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 10:22:40 +00:00
Zakaria El OrcheandClaude Opus 5 4a85a27648 feat(core): expose bound ports, service override, FlashApplication and close hooks 
Four small seams, each useful on its own, that together make a Flash app
testable without hand-rolled scaffolding.

- ServerHandle/ServerLifecycle/FlashApp gain port()/ports(). Listeners already
  bind in the FlashApp constructor, so port(0) resolved to a real port that
  nothing could read back; every integration test worked around this by
  opening a ServerSocket(0), closing it and reusing the number, which races
  anything else on the machine.

- FlashContext.override() replaces a binding instead of rejecting it. The
  duplicate-is-an-error rule stays everywhere else; this is the single
  deliberate exception, for swapping a service out in tests. A replacement is
  logged at INFO so misuse in production is visible.

- FlashApplication + FlashApp.apply() name an application independently of the
  port it runs on, so the same one can be booted twice. It takes FlashApp
  rather than FlashRegistrar because ws() and mount() live there. Being a
  functional interface, a lambda and a named class are the same thing.

- FlashContext.onClose() runs cleanup at stop(), children first and then in
  reverse registration order. stop() previously closed sockets and the
  executor and never touched the service graph, so a pooled DataSource was
  only ever released by JVM exit — invisible with one app per process, a leak
  per test class once a suite boots and stops many.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-09-09 10:22:23 +00:00
Zakaria El OrcheandClaude Sonnet 5 74169e40f4 feat(core): add any() route registration, warn on undocumented OpenAPI routes, log unhandled 500s
Publish Maven packages / publish (push) Failing after 3m35s
Details 
FlashRegistrar#any() registers a handler under every HTTP method for
verb-indifferent handlers (e.g. a reverse proxy). OpenApiExtension now warns
when a class-based handler has no @ApiOperation instead of silently omitting
it from the spec. AbstractRouter's default production exception handler now
logs unhandled exceptions server-side instead of only returning a JSON 500.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-31 11:56:51 +00:00
Zakaria El OrcheandClaude Sonnet 5 3d743b34ce fix(build): resolve fpr-core from Gitea, not the dead maven.relism.dev
Publish Maven packages / publish (push) Successful in 2m3s
Details 
maven.relism.dev is down. fpr-core's source (FastPathRouter) now publishes
to Gitea's own Maven registry via its own publish-maven.yml, same pattern
this project already uses for itself — point <repositories> there and bump
the pinned fpr-core version to the first build actually published there
(1.1.0-36216cd). Full reactor build + test suite green against the new
resolution.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-20 11:10:50 +00:00
Relism f8e0a1d3fa Merge pull request 'fix(http2): close a streaming response body on every exit path' (#13) from hotfix/http2-response-writer-stream-leak into master
Publish Maven packages / publish (push) Successful in 2m9s
Details 
Reviewed-on: #13
 2026-08-14 23:02:30 +00:00
Relism 5954cac66c Merge pull request 'fix(websocket): mask outgoing CLOSE frames in client mode' (#12) from hotfix/ws-close-frame-masking into master
Publish Maven packages / publish (push) Canceled after 7s
Details 
Reviewed-on: #12
 2026-08-14 23:02:12 +00:00
Zakaria El OrcheandClaude Sonnet 5 e5bec59410 fix(http2): close a streaming response body on every exit path 
Http2ResponseWriter.streamBody (a streaming response's InputStream, driven
across startFlowControlled/resume as flow-control windows allow) was never
closed anywhere -- not on clean EOF, not on a write failure, not when the
stream is abandoned (RST_STREAM from the peer, connection teardown). Same
bug Http1ResponseWriter had before cf16be0, just never given the same fix: a
handler stream that releases a held resource (a pooled backend connection,
for a reverse proxy) from close() leaks it under any real amount of stream
resets or aborted connections.

- appendData closes streamBody once `end` is reached (clean completion) and
  on any IOException from the read itself, mirroring Http1ResponseWriter's
  relayAndClose/writeChunkedAndClose reasoning.
- New Http2ResponseWriter#abort(), called from Http2Stream#cancel() --
  symmetric with that method's existing http2Body.cancel() for the inbound
  leg, now covering the outbound one too. cancel() is the single hook every
  abandoned-stream path (RST_STREAM handling and connection teardown in
  Http2Connection, plus Http2StreamDispatcher) already goes through, so this
  covers every abort case without adding a new one.

closeStreamBodyQuietly() is idempotent (nulls streamBody after closing), so
the appendData and abort() close paths can't double-close or race.

Four new Http2ResponseWriterTest cases: normal completion in one call,
completion across a resume() (multiple flow-control windows), abort() while
still streaming, and abort() as a no-op on a non-streaming response. 697/697
flash-module tests green.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011LLwcyHUnbApCrY33gvgoa
 2026-08-14 22:51:16 +00:00
Zakaria El OrcheandClaude Sonnet 5 901da954a9 fix(websocket): mask outgoing CLOSE frames in client mode 
WebSocketSession.close(int) hand-wrote a raw, always-unmasked 4-byte CLOSE
frame, bypassing writeFrame's maskOutgoing handling that sendText/send/
sendPong already go through correctly. A client-mode session (maskOutgoing
true — WS-client usage, e.g. Pathway's UpstreamWebSocketConnector relaying a
proxied client's close to a backend) therefore sent an RFC-6455-invalid
unmasked frame.

This was latent until this same HTTP/2 branch's readFrame rewrite added the
receive-side masking check RFC 6455 §5.1 requires: a strict peer now rejects
the malformed frame with WebSocketProtocolException("client frame must be
masked") before ever exposing it as a CLOSE, silently dropping the close
instead of relaying it — reproduced end to end via Pathway's
ProxyWebSocketIntegrationTest.clientCloseIsForwardedToTheBackend.

close(int) now builds its 2-byte payload and calls the same writeFrame path
every other outgoing frame uses, so masking (or not) follows maskOutgoing
automatically. Existing server-mode close_setsClosedAndWritesFrame is
unchanged (byte-for-byte identical output — no mask bit, no key). Added
close_masksWhenActingAsClient (mirrors the existing sendText coverage) and a
round-trip regression, readFrame_acceptsCloseFrameWrittenByAClientSession,
that reproduces the actual bug: a client session's close() output fed
straight into a server session's readFrame().

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011LLwcyHUnbApCrY33gvgoa
 2026-08-14 22:46:59 +00:00
Relism 787ae610d4 Merge pull request 'fix(ext): update stale HeaderMap references to Http1HeaderMap' (#11) from hotfix/header-map-rename into master
Publish Maven packages / publish (push) Successful in 2m36s
Details 
Reviewed-on: #11
 2026-08-14 18:27:13 +00:00
Zakaria El OrcheandClaude Sonnet 5 b5ff5a4c1f fix(ext): update stale HeaderMap references to Http1HeaderMap 
HeaderMap was split into the HeaderView interface and Http1HeaderMap
impl in the HTTP/2 model refactor, but two extension-module tests
(flash-ext-jackson, flash-ext-view-jte) still referenced the old
class name, breaking the CI build on master after the HTTP/2 PR merge.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JCmqb7XGb3JQvCWf589yma
 2026-08-14 18:25:42 +00:00
Relism 2078dea54f Merge pull request 'feat(core): HTTP/2 support, correctness fixes, and doc reorganization' (#10) from feature/core/http2 into master
Publish Maven packages / publish (push) Failing after 53s
Details 
Reviewed-on: #10
 2026-08-14 18:20:30 +00:00
Zakaria El Orche a0dda8e47a refactor(core): remove out-of-scope HTTP/2 client/proxy, reorganize docs, refresh README 
HttpProxy and Http2Client (719 LOC) shipped a reverse-proxy adapter and outbound HTTP/2
client from flash core with zero callers anywhere in the server itself — only each
other and their own tests. An HTTP/1.1+2 server framework has no business bundling an
outbound client; that capability belongs in its own flash-extensions/flash-ext-*
module if/when it's needed. Removed, along with the now-dead src/bench load driver
that depended on Http2Client (no replacement client written here — flagged as
follow-up work, not silently dropped).

docs/http2/ had accumulated core, cross-protocol documentation alongside genuine
HTTP/2-protocol internals: HTTP1-HARDENING, TRANSPORT, MESSAGE-MODEL,
TRAILERS-AND-STREAMING and BYTES all describe machinery HTTP/1.1 and HTTP/2 share, not
HTTP/2 specifically. Moved to a new docs/core/, leaving docs/http2/ to the protocol
layers, wire internals and operational docs that are actually HTTP/2-specific.
CLEARTEXT-AND-PROXY.md renamed to CLEARTEXT.md and its now-removed upstream-client
section cut, matching the source removal above.

README.md: removed the "HTTP/2 upstream proxy" section (documented the deleted
HttpProxy/Http2Client), the flash-bench module row and build command (not a module
that exists in this repo), and fixed every doc link to the new docs/core/ paths.
Added the new FlashConfiguration.maxConnections field to the configuration reference.

src/bench/ (a load-test harness distinct from the JMH suite, not wired into any Maven
profile or CI) is committed here for the first time.
 2026-08-14 18:13:03 +00:00
Zakaria El Orche cf16be08c0 fix(core): fix HTTP/2 rate-limiter false positives, connection-flood OOM, and a streaming-body leak 
Targeted stress testing under this branch's HTTP/2 work surfaced four independent
production bugs, each verified with a before/after load test and a regression test:

- Http2Limits.MAX_STREAMS_CREATED_PER_INTERVAL (400/10s) rejected legitimate
  high-concurrency HTTP/2 clients as if they were CVE-2023-44487 rapid-reset abuse —
  h2load's default pattern alone triggered 40-92% request failure. Raised to 100,000,
  matching MAX_STREAMS_PER_CONNECTION's existing lifetime budget; the RST_STREAM-rate
  counter remains the precise defence against the actual attack signature.

- Flash had no connection-admission control anywhere: AcceptLoop accepted every TCP
  connection unconditionally, so a connection flood (h2load -c 400) ran the JVM out of
  heap and crashed with OutOfMemoryError, killing even unrelated daemon threads.
  TransportLimits.defaultMaxConnections() auto-scales a cap from Runtime.maxMemory();
  ConnectionRunner.accept() enforces it before any per-connection state (TLS handshake
  included) is created. Verified surviving 42x the admission limit under both cleartext
  and TLS load with bounded RSS.

- Http1ResponseWriter never closed a handler's streaming response body on a write
  failure (e.g. the client disconnecting mid-transfer) — only on a clean EOF. A handler
  whose stream releases a held resource (a pooled backend connection, for a reverse
  proxy) from close() leaks it under any real amount of client disconnects. Now closed
  on every exit path, matching InputStream#close()'s own idempotency contract.

- Http2StreamState.transition() called the enum's values() every state transition;
  values() clones a fresh array on every call. Cached once, removing ~10.76% of
  allocations measured live under load.

695 -> 698 tests (three new regression tests), all passing.
 2026-08-14 18:12:46 +00:00
Zakaria El Orche 825bdfc942 docs(core): document HTTP/2 operation and architecture 2026-08-13 21:39:37 +00:00
Zakaria El Orche 3679eed74a feat(core): add HTTP/2 performance gates 2026-08-13 21:29:21 +00:00
Zakaria El Orche 6386264a1e test(core): add HTTP/2 compliance suite 2026-08-13 20:51:35 +00:00
Zakaria El Orche f3011ffdf6 feat(core): add WebSocket over HTTP/2 2026-08-13 20:18:05 +00:00
Zakaria El Orche 3c1eb0d0df feat(core): add HTTP/2 cleartext proxy support 2026-08-13 20:00:59 +00:00
Zakaria El Orche 5755ef77fe feat(core): harden HTTP/2 abuse resistance 2026-08-13 19:40:52 +00:00
Zakaria El Orche ee90ac44ff feat(core): add HTTP trailers and push streaming 2026-08-13 19:23:26 +00:00
Zakaria El Orche 8d5340a0b4 feat(core): add HTTP/2 flow-controlled bodies 2026-08-13 19:00:19 +00:00
Zakaria El Orche c96d51f7ea feat(core): add HTTP/2 stream dispatch 2026-08-13 18:33:04 +00:00
Zakaria El Orche 9391f80f76 feat(core): add HTTP/2 response path 2026-08-13 18:04:22 +00:00
Zakaria El Orche cfa192e689 feat(core): add HTTP/2 connection state machine 2026-08-13 17:49:20 +00:00
Zakaria El Orche 95c33e7bf2 feat(core): add HPACK decoder 2026-08-13 17:17:29 +00:00
Zakaria El Orche f47f53c355 feat(core): add HPACK coding primitives 2026-08-13 16:48:47 +00:00
Zakaria El Orche 885c450f6b refactor(core): unify HTTP protocol package boundaries 2026-08-13 16:24:23 +00:00
Zakaria El OrcheandClaude Sonnet 5 d882ea255c feat(core): HTTP/2 Phase 6 — Request/Response model refactor 
Pools Request/RequestBody/RequestLine/Response per connection (EX-20..EX-24),
following the same reset()/dev-mode-guard idiom Http1HeaderMap already used.
HeaderMap splits into HeaderView (interface) + Http1HeaderMap (impl, DEC-22).
Response gains byte-level structured headers, PreEncodedHeader, and
ResponseSerializer as the single source of truth for a response's header
sequence, consumed by Http1ResponseWriter's single-bulk-write rewrite (EX-27).
ByteTemplate gets O(1) slot lookup plus a buffer-writing overload (EX-28).
Multipart audited: three resource-exhaustion gaps found and fixed — unbounded
buffered part size, part count, and per-part header parsing (EX-38..EX-40) —
and boundary length confirmed already bounded (EX-41).

Re-measuring RequestPipelineBenchmark after the pooling work surfaced one more
per-request allocation underneath it (RequestParser building fresh
RequestByteViews every call) and, while checking the phase's own DoD text, an
unbounded Response.header(...) loop hazard neither had a limit — both fixed
(EX-42, EX-43). The h1 zero-alloc contract now holds: parseAndRoute measures
0.008 B/op (JMH noise floor), down from Phase 4's 120.008 B/op (DEC-20, DEC-23).

MESSAGE-MODEL.md records the pooling model; README gains an "Object lifetime"
section documenting the do-not-retain-past-the-handler contract. 503/503 tests
green.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-13 15:26:08 +00:00
Zakaria El OrcheandClaude Sonnet 5 0e1bbed42c feat(core): HTTP/2 Phase 5 — frame layer 
Implements HTTP/2 frame reading, validation, and writing: FrameType (the
10 RFC 9113 types + per-type validation descriptor), FrameFlags (with
the deliberate END_STREAM/ACK bit collision documented), FrameHeader (a
flyweight, never allocated per frame), Http2FrameReader (length-prefixed
reader over BufferedByteSource, mirroring RequestParser's buffer/
compaction discipline), FrameValidator (table-driven, specific RFC error
code per violation -- not a uniform code per type), Padding (RFC 9113
6.1/6.2), and FrameWriteBuffer (beginFrame/endFrame length back-patching
over Phase 4's ByteWriter).

All 10 frame types round-trip correctly; every RFC-mandated rejection
has its own test asserting the specific error code; the reader is
fuzz-tested against 10,000,000 random inputs (~14s). The zero-alloc
contract is measured, not asserted: reading + validating + consuming a
frame is 0.002 B/op, writing one is ~10^-4 B/op -- both indistinguishable
from zero (DEC-21).

Found and fixed EX-37 while writing Http2FrameReaderTest: BufferedByteSource's
deadline mechanism (EX-07's actual fix) NPE'd against a null socket, which
every isolated unit test in this codebase uses -- it had zero dedicated
test coverage of its own. Fixed to treat a null socket as "no OS-level
timeout to bound" rather than a misuse, and given BufferedByteSourceTest,
which did not exist before.

449/449 tests green, both with and without -Pjmh.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-13 14:25:12 +00:00
Zakaria El OrcheandClaude Sonnet 5 704a00a551 feat(core): HTTP/2 Phase 4 — byte-layer foundations 
Builds dev.relism.flash.bytes: ByteScan (scanning/comparison/hashing,
scalar + SWAR, property-tested against each other on every boundary and
20,000 random fuzz trials each), ArrayBackedByteView/SegmentedByteView
capability hierarchy, PooledSlice/SlicePool, ByteWriter, Pairs.

Cashes in the allocation and scanning wins the existing code left on the
table: EX-04 (word-at-a-time router matching, verified directly against
fpr-core's own ByteCompare), EX-05 (pooled views replacing per-call
anonymous ByteView allocations in HeaderMap/QueryParams/PathParams),
EX-09 (HeaderMap index built once per reset() instead of rescanning per
lookup), EX-19 (reusable PathParams on the router's per-connection
scratch), EX-25/EX-26 (single-allocation String construction), EX-33
(SWAR header-terminator scan in RequestParser).

Also closes EX-06's router half, missing from this phase's own EX-item
list in the plan (same class of omission DEC-12 recorded for Phase 1):
FastPathRouterImpl/FastPathWsRouterImpl's ThreadLocals (unbounded under
one-virtual-thread-per-connection) are replaced by an opaque,
caller-owned per-connection scratch object (AbstractRouter#newScratch),
not by extending ConnectionScratch as its own Javadoc originally assumed
-- that would have created transport's first dependency on routing in
the reverse direction. Full rationale in DEC-19.

Every optimization is measured, not asserted (DEC-20): SWAR scan 35.4%
faster than scalar, kept; EX-04's word-path 32.1% faster than
byte-at-a-time at the mechanism level, kept for its real future
consumers even though today's router doesn't yet route through it
(MethodPathByteView stays deliberately non-array-backed, per the plan's
own text). Router matching itself is ~0 B/op including parametric
routes. The full h1 pipeline is not literally 0 B/op yet -- 120 B/op is
Request/RequestBody/RequestLine construction, honestly attributed to
Phase 6's explicit scope rather than hidden.

395/395 tests green, both with and without -Pjmh.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-13 14:07:29 +00:00
Zakaria El OrcheandClaude Sonnet 5 2bf261e4e2 feat(core): HTTP/2 Phase 3 — serialized frame writer (GO/NO-GO gate) 
Implements the connection-level serialized frame writer per the plan's
go/no-go gate: tryLock() fast path with an intrusive Vyukov-style MPSC
fallback under contention, ReentrantLock throughout (never synchronized),
and a scan-based write-timeout reaper.

All four gate criteria met and measured: N=1 0 B/op and 42.6 ns overhead
(<=50 ns budget); N=64 65.5% throughput retention (>=60%) and 11.8-14.2 us
p999 (<1 ms); no carrier pinning; stress test 10,000/10,000 green across
1000 iterations x 5 concurrency levels x 2 scheduler configs. Compared
against plain-lock and dedicated-thread designs with real benchmark
numbers, not assertion. Full methodology and results in WRITER.md, DEC-09.

Also fixes a real regression found while resuming this work: the JMH
benchmark broke plain `mvn test` (no -Pjmh) because it lived in
src/test/java, which Surefire's test discovery loads regardless of
whether a class is ultimately selected as a test. Moved to a dedicated
src/jmh/java source root registered only under the jmh profile
(build-helper-maven-plugin), per DEC-17.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-13 14:05:01 +00:00
Zakaria El OrcheandClaude Sonnet 5 a315e1df8b feat(core): HTTP/2 Phase 2 — transport decomposition 
Breaks HttpServer (563 lines, eleven responsibilities) into named,
single-purpose components and introduces the ConnectionProtocol seam
HTTP/2 plugs into starting Phase 8, per
flash/docs/http2/IMPLEMENTATION-PLAN.md Phase 2.

New packages:
- dev.relism.flash.transport: TransportFactory (composition root, EX-34),
  ListenerBinder, BoundListener, TransportTuning, AcceptLoop,
  ConnectionRunner (per-connection setup/teardown), ConnectionProtocol
  (the h1/h2 seam), ConnectionContext, ConnectionScratch + ScratchPool
  (EX-06), ServerLifecycle (implements ServerHandle; start/stop/graceful
  shutdown, EX-32).
- dev.relism.flash.http1: Http1Connection (the keep-alive request loop,
  implements ConnectionProtocol), Http1ResponseWriter, Http1KeepAlive
  (the shared Connection-header token-list scanner, EX-13).
- dev.relism.flash.websocket additions: WebSocketUpgrade (detection +
  handshake), WebSocketLoop (session loop), WebSocketProtocolException.

Existing-code defects fixed (EX-nn):
- EX-01: WebSocketSession's two blocking-write sites use ReentrantLock
  instead of synchronized (out) -- a virtual thread blocking inside
  synchronized pins its carrier platform thread on Java 21.
- EX-06: HttpServer's three ThreadLocals (SHA1, LONG_BUF,
  STREAM_RELAY_BUFFER) replaced by ConnectionScratch, pooled via
  ScratchPool instead of one-per-virtual-thread (i.e. one-per-connection)
  growth. The router's ThreadLocals are deliberately deferred to Phase 4
  per this EX item's own phasing -- see DEC-15 for the plan-wording fix.
- EX-11: WebSocketSession.readFrame's extended-length and mask-key bytes
  are now read in a single bounded readFully instead of one at a time.
- EX-12: full RFC 6455 frame validation -- continuation-frame
  reassembly, mandatory masking-direction enforcement, opcode
  validation, control-frame constraints (not fragmented, <=125 bytes),
  and WebSocketProtocolException carrying the correct close code (1002
  protocol error, 1009 message too big).
- EX-13: Connection header token-list scanning shared between the
  keep-alive decision and the WebSocket upgrade check.
- EX-14: HEAD responses report Content-Length but write no body.
- EX-15: Content-Type omitted when empty; Content-Length and the body
  omitted entirely for 204/304/1xx responses.
- EX-16: Date header (dev.relism.flash.http.DateHeader), refreshed once
  per second by a shared daemon thread; FlashConfiguration.sendDate.
- EX-32: two-stage graceful shutdown -- stop accepting, force
  Connection: close on the response an in-flight handler is still
  producing (re-checked after the handler runs, not just before
  dispatch, so a shutdown beginning mid-handler is still honoured),
  drain up to shutdownDrainTimeoutMs, then force-close.
- EX-34: ServerHandle.create delegates to TransportFactory instead of
  constructing HttpServer directly.

Two plan corrections recorded: DEC-15 (Phase 2's "no ThreadLocal
anywhere" DoD line contradicted EX-06's own multi-phase assignment --
corrected to match the registry) and DEC-16 (no separate
WebSocketFrameCodec class this phase; the EX-11/EX-12 fixes stay inside
WebSocketSession, which is one cohesive state machine under R6's own
carve-out -- revisit at Phase 15 if RFC 8441 needs the decoupling for
real).

HttpServer.java deleted.

311/311 tests green (flash module), run three times for stability of
the wall-clock-based timeout/shutdown tests. Whole-repo build green.
h1 benchmark regression check remains unverified in the plan's DoD (no
JMH harness until Phase 3, same caveat as Phase 1).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-13 12:03:44 +00:00
Zakaria El OrcheandClaude Sonnet 5 5a2aaf5a07 feat(core): HTTP/2 Phase 1 — HTTP/1.1 hardening and protocol negotiation 
Fixes the request-smuggling and resource-exhaustion debt in the existing
HTTP/1.1 parser, and adds the ALPN/h2c-preface negotiation seam so a
connection's protocol is decided once, before any request is parsed, per
flash/docs/http2/IMPLEMENTATION-PLAN.md Phase 1.

Existing-code defects fixed (EX-nn):
- EX-02: reject Content-Length + Transfer-Encoding together (RFC 9112 6.1
  CL.TE/TE.CL smuggling), and conflicting duplicate Content-Length values.
- EX-03: strict, overflow-safe Content-Length parsing, replacing a parser
  that silently skipped non-digit bytes ("5abc" -> 5, "-1" -> 1).
- EX-07: header-read / idle-keep-alive / body-read timeouts enforced by an
  absolute deadline (dev.relism.flash.transport.BufferedByteSource), not
  merely Socket#setSoTimeout, which never trips against a peer trickling
  one byte per read within the window.
- EX-08: header count / name length / value length / request-line length
  bounds (Http1Limits), 431 on violation.
- EX-10: ChunkedInputStream now reads through BufferedByteSource instead
  of the raw unbuffered socket stream, and the header-parser's read-ahead
  bytes are handed over via a zero-copy prependOnce() instead of a
  SequenceInputStream/ByteArrayInputStream pair.
- EX-17: HttpStatus's status-code bound is computed from values() instead
  of a hand-maintained constant that silently threw
  ArrayIndexOutOfBoundsException when a code above it was added; added
  421, 431, 505, 507, 511 and others HTTP/2 and this hardening need.
- EX-18: bare-CR desync and obsolete line folding rejected.
- EX-30: the TLS handshake is forced explicitly, under a timeout, before
  any protocol decision -- SSLSocket#getApplicationProtocol() returned
  null until the handshake had run, and nothing previously forced it.
- EX-31: TLS 1.2 cipher suites on the RFC 9113 Appendix A blocklist are
  filtered out of a listener's enabled set whenever it offers h2 via ALPN.
- EX-35 (found in this phase): Transfer-Encoding values listing multiple
  codings ("gzip, chunked") were silently treated as not chunked at all,
  corrupting the message boundary -- only the whole value was compared.
- EX-36 (found in this phase): a header line with no ':' was silently
  skipped instead of rejected.

New:
- dev.relism.flash.transport.BufferedByteSource: the single buffered,
  deadline-aware, peekable view over a connection's inbound bytes.
- dev.relism.flash.transport.ProtocolNegotiator/NegotiatedProtocol: ALPN
  and h2c prior-knowledge detection. In this phase an H2 result is always
  closed cleanly -- there is no Http2Connection to hand off to until
  Phase 8. FlashConfiguration.http2Enabled gates the h2c preface peek.
- dev.relism.flash.exceptions.MalformedRequestException: a typed,
  status-carrying rejection distinct from HttpException, caught at the
  parse site so a malformed request never reaches the handler chain or
  the user's exception handler, and the connection is always closed.

Two small plan-document corrections recorded as DEC-12 (Phase 1's Files
list omitted BufferedByteSource.java and MalformedRequestException.java;
the request-line-length check description pointed at the wrong offset).
DEC-13/DEC-14 record the deadline and exception-hierarchy designs.

277/277 tests green (flash module), run twice for stability of the new
wall-clock-based HttpServerTimeoutTest cases. Whole-repo build green.
h1 benchmark regression check is left unverified in the plan's DoD: no
JMH harness exists yet (Phase 3 deliverable).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-13 11:40:03 +00:00
Zakaria El OrcheandClaude Sonnet 5 db6e4a4d0c feat(core): HTTP/2 Phase 0 — groundwork (limits, error model, decision log) 
Establishes the package layout, limits/error model and decision-log
convention that every later HTTP/2 phase depends on, per
flash/docs/http2/IMPLEMENTATION-PLAN.md Phase 0.

- dev.relism.flash.h2: package-info (architecture overview), Http2ErrorCode
  (the 14 RFC 9113 §7 codes with precomputed 4-byte wire encodings),
  Http2Exception (connection error -> GOAWAY) and Http2StreamException
  (stream error -> RST_STREAM), neither extending IOException, both with
  stack-trace capture disabled on the hot rejection path.
- Http2Limits: every bound Phase 0 requires (concurrent streams, frame
  size, header list size, CONTINUATION/reset/settings/ping rate bounds,
  flow-control windows, HPACK table size/string length, assembly and idle
  timeouts), each documented with the attack or RFC clause it addresses.
- dev.relism.flash.http.Http1Limits: the h1 bounds needed by EX-03 (strict
  Content-Length) and EX-08 (header count/size limits).
- flash/docs/http2/DECISIONS.md seeded with DEC-01..DEC-11 (the ten
  decisions implied by the plan itself, plus DEC-11 recording that commits
  keep scope `core` rather than adding `h2` to AGENTS.md).
- flash/docs/http2/IMPLEMENTATION-PLAN.md: added the Progress Ledger
  (tracks phase status across sessions) and checked off Phase 0's DoD.

19 new tests, full flash module suite green (226/226).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-13 10:59:49 +00:00
Relism 8f1f30b973 Merge pull request 'fix(data): fire transaction synchronizations, and scope them to their transaction' (#9) from fix/tx-synchronizations into master
Publish Maven packages / publish (push) Successful in 1m53s
Details 
Reviewed-on: #9
 2026-08-12 23:37:36 +00:00
Zakaria El OrcheandClaude Opus 5 c5179146c0 docs(data): write the data-layer docs in English 
The three data modules' docs were in Italian, so the synchronization contract
added in the previous commit went in as Italian too, to match its file. English
is the project's language for docs, comments and READMEs alike, and a file half
in each is worse than either — so all three are translated, not just the new
section.

Content is otherwise unchanged, except the "synchronizations run on
commit/rollback" line in the two backend READMEs, which was vague before and is
now accurate about which hook sees the session/connection still bound, pointing
at flash-ext-data-core's README for the full contract.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-08-12 23:36:11 +00:00
Zakaria El OrcheandClaude Opus 5 0194470c1f feat(data): actually invoke TxSynchronization.beforeCommit, and document the contract 
beforeCommit(boolean) has been part of the TxSynchronization API from the
start and was invoked by nothing, in either manager — anyone implementing it
got silence, the same failure class as the dropped afterCommit callbacks in
the previous commit. Left out of that one because fixing it is a design
decision rather than a restored behaviour; this is that decision, written
down.

It now runs immediately before the real commit, with the transaction still
active and its session/connection still bound, which is the whole reason to
have a hook on this side of the commit: it can still write through the same
resource and land in the same atomic unit. Skipped when the transaction is
already rollback-only, since there is no commit to precede.

Throwing from it vetoes the commit: the transaction rolls back, the surviving
callbacks hear ROLLED_BACK, and the exception propagates. Without that, a hook
running before the commit would be strictly less useful than one running
after. A commit that fails on its own now takes the same path instead of
completing silently with no callback at all, and a rollback that also fails is
attached as a suppressed exception rather than replacing the one that explains
the failure.

Documented on the interface itself and in flash-ext-data-core/docs/README.md:
which hook sits on which side of the commit, what each may still touch, what
throwing does, and the per-transaction scoping rule from the previous commit.

Tests: 6 more (3 per manager) — runs inside the transaction with the resource
still bound, receives the read-only flag, skipped on a rollback-only
transaction, and vetoes the commit when it throws. 37 across the two managers
now, all green, reactor verify passes the 80% Jacoco gate.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-08-12 23:33:05 +00:00
Zakaria El OrcheandClaude Opus 5 7299490d0d fix(data): fire transaction synchronizations, and scope them to their transaction 
Two defects in the same mechanism, both silent.

1. HibernateTxManager#commit fired synchronizations *after* its finally block,
   where cleanupIfIdle() had already called ResourceRegistry.cleanup() and
   removed the ThreadLocal list holding them. fireSynchronizations() then read
   a freshly initialized empty list and did nothing. No afterCommit callback
   had ever run on the Hibernate path: no exception, no log, just silence.
   rollback() twenty lines below had the order right, which is what makes this
   an ordering slip rather than a design choice.

   Found in production, from the far end: an admin write landed in Postgres
   while the in-memory cache it was registered to refresh never heard about it,
   so the change only took effect when the process restarted and re-read the
   database at boot.

2. Synchronizations were a single flat per-thread list, fired from index 0 by
   whichever transaction completed first. A REQUIRES_NEW inner transaction
   therefore fired the *suspended* outer transaction's callbacks too — early,
   with the inner transaction's outcome, for a transaction that might still
   roll back. Each new transaction now records how many synchronizations were
   already registered when it began, and fires only its own tail.

Both managers get the fix and the same callback ordering: unbind the session or
connection first, so a callback that opens its own transaction (a cache reload,
an outbox drain) gets a fresh one instead of joining the transaction that just
committed, then fire, then clean up.

Also fixes JdbcTxStatus rejecting a null connection, which turned the two
propagations that deliberately produce a connectionless status — SUPPORTS with
no active transaction, and NOT_SUPPORTED — into an NPE inside begin(). The
Hibernate manager always allowed it, and resource() already reports the real
mistake with a message that names it.

Tests: 16 new across the two managers, kept deliberately parallel since the two
are interchangeable behind TxManager — synchronization firing, ordering,
per-transaction scoping, callbacks opening their own transaction, and the
previously untested SUPPORTS/NOT_SUPPORTED/MANDATORY propagations. Nothing
covered afterCommit before, which is how both defects shipped.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-08-12 23:23:47 +00:00
Zakaria El OrcheandClaude Sonnet 5 88ac3c3d1f fix(build): don't skip deploying flash-extensions' own POM
Publish Maven packages / publish (push) Successful in 2m2s
Details 
Its maven-deploy-plugin was configured with <skip>true</skip>, so the
first successful publish-maven.yml run deployed flash-parent, flash,
and every flash-ext-* jar to Gitea's Maven registry, but not
flash-extensions itself — the pom-packaging aggregator every
flash-ext-* submodule's effective POM inherits from via <parent>.
Remote consumers (Pathway's Docker build, resolving flash-ext-* from
the registry instead of a local ~/.m2 install) couldn't resolve that
parent POM and failed with "artifacts could not be resolved:
flash-extensions:pom (absent)".

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 20:30:12 +00:00
Zakaria El OrcheandClaude Sonnet 5 3f0b49fa36 ci: use a real PAT (PACKAGES_TOKEN) instead of GITEA_TOKEN for deploy
Publish Maven packages / publish (push) Successful in 1m55s
Details 
Root cause of the persistent 401s found: Gitea's own per-job GITEA_TOKEN
cannot publish to any package registry at all — a known, still-
unimplemented limitation (go-gitea/gitea#23642), not a settings.xml
auth-format issue as first assumed. Confirmed by testing: GITEA_TOKEN
authenticated fine against the plain API but every registry write
endpoint rejected it regardless of scope or header style.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 20:23:18 +00:00
Zakaria El OrcheandClaude Sonnet 5 a19c59770d ci: add a debug step for the persistent 401 on deploy
Publish Maven packages / publish (push) Failing after 28s
Details 
Basic auth didn't fix it either — same 401 as the httpHeaders form.
Before guessing again: confirm GITEA_TOKEN actually reaches this step
non-empty, and check whether it authenticates against the plain API at
all (both header styles), independent of Maven/wagon-http.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 19:54:47 +00:00
Zakaria El OrcheandClaude Sonnet 5 3bc5952dc7 ci: switch Maven auth to basic (username/password), not httpHeaders
Publish Maven packages / publish (push) Failing after 27s
Details 
Still 401 after granting packages:write — the httpHeaders form from
Gitea's docs is honored by Maven's resolver (dependency reads) but
apparently not reliably by the wagon-http provider maven-deploy-plugin
uploads through, which deployed unauthenticated. Basic auth is
wagon-http's oldest, always-supported path.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 19:53:12 +00:00
Zakaria El OrcheandClaude Sonnet 5 9d19de50cb ci: request packages:write — repo's default Actions token is read-only
Publish Maven packages / publish (push) Failing after 26s
Details 
Deploy failed with 401 Unauthorized: this repo's default Actions token
permission mode is Restricted (read-only on packages, not Permissive),
so the auto-provided GITEA_TOKEN couldn't push to the Maven registry
without explicitly requesting write access.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 19:50:58 +00:00
Zakaria El OrcheandClaude Sonnet 5 4710cf8633 ci: replace actions/checkout with a plain git clone
Publish Maven packages / publish (push) Failing after 27s
Details 
actions/checkout@v4 is a Node-based action; the maven:3.9-eclipse-temurin-21
container it was running in has no Node, so it failed with "node: executable
file not found in \$PATH". A shell git clone needs neither Node nor any
action runtime, just git (installed here via apt).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 19:47:40 +00:00
Zakaria El OrcheandClaude Sonnet 5 6a0242d654 ci: use the global ubuntu-latest runner, not the org-scoped one
Publish Maven packages / publish (push) Failing after 59s
Details 
The "org" runner label is scoped to the Pixel-Services organization —
Flash5 lives under the separate Relism account, which can only reach
the global runner (labels ubuntu-latest/ubuntu-24.04/ubuntu-22.04).
This job just runs Maven inside a container, no Docker access needed,
so ubuntu-latest is a fine fit.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 19:44:24 +00:00
Zakaria El OrcheandClaude Sonnet 5 0365c1f222 ci: fix runner label (org, not docker)
Publish Maven packages / publish (push) Canceled after 0s
Details 
The org's Gitea Actions runner is registered under the label "org" —
"docker" doesn't match anything online, so the publish job never got
picked up.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 19:41:26 +00:00
Relism c235e67158 Merge pull request 'ci: publish Maven packages to Gitea registry on push to master' (#8) from ci/publish-maven into master
Publish Maven packages / publish (push) Canceled after 0s
Details
2026-08-12 19:39:12 +00:00
Zakaria El OrcheandClaude Sonnet 5 5a16bc690c ci: publish Maven packages to Gitea registry on push to master 
Lets Pathway (and other consumers) resolve dev.relism:flash from Gitea's
Maven registry instead of requiring a local `mvn install`. Every push
stamps all modules with a commit-scoped version (2.1.0-<short-sha>) before
deploying, since Gitea's registry won't let a build overwrite an existing
name+version.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 19:38:18 +00:00
Relism e217f9370d Merge pull request 'feat(ext-data): add unified Data gateway; mcp: derive roles claim from OIDC' (#7) from feature/data-unified-composition into master
Publish Snapshot / Deploy Snapshot (push) Canceled after 5s
Details
CI / Build & Test (push) Canceled after 3s
Details 
Reviewed-on: #7
 2026-08-12 18:39:28 +00:00
Relism be7df3987c Merge pull request 'Feature/core/deterministic boot graph' (#6) from feature/core/deterministic-boot-graph into master
CI / Build & Test (push) Canceled after 5s
Details
Publish Snapshot / Deploy Snapshot (push) Canceled after 3s
Details 
Reviewed-on: #6
 2026-08-12 18:39:01 +00:00
Zakaria El OrcheandClaude Sonnet 5 9e045287c1 feat(ext-data): add unified Data gateway; mcp: derive roles claim from OIDC
CI / Build & Test (push) Canceled after 1m28s
Details
CI / Build & Test (pull_request) Canceled after 16s
Details 
Data/RepositoryFactory/HibernateData give applications one cached,
stateless entry point for repositories per entity type instead of
per-request instantiation, with write()/afterCommit() replacing manual
transaction+reload choreography.

McpConfig.rolesClaimPath is removed - MCP now derives the claim path
from OidcMiddleware.rolesClaimPath() so applications never duplicate
the roles-claim config between OIDC and MCP. McpPackageScanner is
rebuilt on the shared PackageScanner.discover(packageName) primitive,
doing only McpTool/McpResource/McpPrompt classification itself.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-12 18:37:30 +00:00
Zakaria El Orche 891ef99b8e refactor(core): make boot and middleware ordering deterministic
CI / Build & Test (pull_request) Canceled after 23s
Details
CI / Build & Test (push) Failing after 4m51s
Details
2026-08-12 16:42:49 +00:00
Zakaria El OrcheandClaude Sonnet 5 d7f36a7aea feat(ext-mcp): add MCP (Model Context Protocol) server extension
CI / Build & Test (push) Failing after 4m57s
Details 
Streamable HTTP transport (JSON-RPC 2.0 over POST), one-class-per-tool/resource/prompt
API mirroring RequestHandler, boot-time-precompiled schema/list payloads for a zero-alloc
hot path, and optional OAuth2 protection built on flash-ext-oidc (lazy-loaded, RFC 8707
audience binding, RFC 9728 Protected Resource Metadata). Registers the module in the
root and flash-extensions POMs and adds the ext-mcp commit scope to AGENTS.md.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-11 00:22:40 +00:00
Zakaria El OrcheandClaude Sonnet 5 8ece9975de feat(ext-web-bundler): add build-time asset scanning and static-frontend strategy 
Introduces AssetDirectoryScanner, StaticFrontendStrategy, and WebBundlerBuild for
build-time asset discovery, plus config/docs updates for frontend-type resolution.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-11 00:22:26 +00:00
Relism 4032567d75 Merge pull request 'feat(core): add HTTP QUERY method support' (#5) from feature/core/http-query-method into master
CI / Build & Test (push) Canceled after 5s
Details
Publish Snapshot / Deploy Snapshot (push) Canceled after 7s
Details 
Reviewed-on: #5
 2026-08-10 13:29:24 +00:00
Zakaria El OrcheandClaude Sonnet 5 fa0a2d79b4 feat(core): add HTTP QUERY method support
CI / Build & Test (push) Failing after 4m55s
Details
CI / Build & Test (pull_request) Canceled after 50s
Details 
Adds the QUERY method (RFC 10008) — safe and idempotent like GET,
but carries a request body like POST, useful for complex filters
that don't fit in a URL query string.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-10 13:09:26 +00:00
Relism 391ae6778e Merge pull request 'feat(core): ALPN configuration and TLS visibility on Request/WebSocketSession' (#4) from feature/core/tls-alpn into master
Publish Snapshot / Deploy Snapshot (push) Failing after 4m48s
Details
CI / Build & Test (push) Failing after 5m4s
Details 
Reviewed-on: #4
 2026-08-09 23:38:27 +00:00
Zakaria El OrcheandClaude Sonnet 5 1b48d14b4f feat(core): ALPN configuration and TLS visibility on Request/WebSocketSession
CI / Build & Test (push) Failing after 5m3s
Details
CI / Build & Test (pull_request) Failing after 4m53s
Details 
- TlsConfig.applicationProtocols(String...) sets the listener's negotiable
  ALPN protocol list via SSLParameters, inherited by every accepted socket
  like clientAuth — works on both keystore() and ofContext(), untouched
  unless called. Enables TLS-ALPN-01 (RFC 8737) style on-demand cert
  issuance: a custom KeyManager can read the already-resolved protocol via
  engine/socket getHandshakeApplicationProtocol() inside
  chooseEngineServerAlias/chooseServerAlias, since ALPN is resolved during
  ClientHello/ServerHello, always before Certificate production.
- Request gains isSecure()/sslSession(), threaded through RequestParser from
  the accepted SSLSocket exactly like remoteAddress() — reference-only,
  zero per-request allocation. sslSession() defers to SSLSocket#getSession()
  lazily, so it's a cached-field read (handshake already completed by the
  time a handler can call it), never a forced handshake.
- WebSocketSession.isSecure()/sslSession() delegate to the upgrading
  Request rather than tracking the socket a second time.
- Documents TLS end-to-end in README.md (listeners, TlsConfig, SNI, ALPN,
  mTLS, Request/WebSocketSession accessors).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-09 23:34:22 +00:00
Relism 7cd8b3869c Merge pull request 'feat(core): add TLS/mTLS support with multi-listener and SNI' (#3) from feature/core/tls-support into master
Publish Snapshot / Deploy Snapshot (push) Failing after 4m58s
Details
CI / Build & Test (push) Failing after 4m59s
Details 
Reviewed-on: #3
 2026-08-09 22:23:53 +00:00
Zakaria El OrcheandClaude Sonnet 5 9f6808e90c feat(core): add TLS/mTLS support with multi-listener and SNI
CI / Build & Test (pull_request) Failing after 4m54s
Details
CI / Build & Test (push) Failing after 4m54s
Details 
Flash can now serve HTTPS and WSS, on one or many listeners per app:

- FlashConfiguration gains an optional `tls` field for the single default
  listener, and a `listeners` list for apps that bind multiple ports (each
  independently plain or TLS).
- New dev.relism.flash.tls package: TlsConfig.keystore(path, password) builds
  an SSLContext from a PKCS12/JKS keystore, with SNI-based certificate
  selection for free when the keystore holds more than one alias (matched by
  SAN/CN, pure JDK APIs). TlsConfig.ofContext(sslContext) is a full escape
  hatch — Flash never calls setSSLParameters on that path, so caller-set
  protocols/cipher suites/ALPN survive untouched. TlsConfig.clientAuth(...)
  adds optional/required mTLS on either path.
- HttpServer moves from a single ServerSocket to a list of bound listeners;
  the per-request hot path (RequestParser, routing, response writing) is
  untouched — TLS only changes which bytes come out of accept(), so WSS needs
  no separate code path from WS.
- process()'s catch is widened to log non-IOException failures (e.g. a
  misbehaving custom KeyManager/TrustManager on the ofContext path) instead
  of swallowing them silently; the failure was already isolated to the one
  connection via the existing try-with-resources/executor-submission
  boundary — this only fixes the missing log line.
- Fixes a pre-existing gap where FlashConfiguration#host was accepted but
  never used to bind (listeners always bound to the wildcard address).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-09 21:41:57 +00:00
Relism bf2d54ca1a Merge pull request 'feat(core): WS client-mode masking, zero-copy header iteration, shared I/O relay buffer' (#1) from feature/core/ws-client-mode-io-reuse into master
Publish Snapshot / Deploy Snapshot (push) Failing after 5m32s
Details
CI / Build & Test (push) Failing after 5m38s
Details 
Reviewed-on: #1
 2026-08-09 20:38:20 +00:00
Zakaria El OrcheandClaude Sonnet 5 a037456634 feat(core): WS client-mode masking, zero-copy header iteration, shared I/O relay buffer
CI / Build & Test (push) Failing after 6m7s
Details
CI / Build & Test (pull_request) Failing after 4m56s
Details 
- WebSocketSession supports client-mode outgoing frame masking (RFC 6455) via
  in-place XOR, reusing the unmask routine already used for inbound frames.
- HeaderMap gains an allocation-free forEach(HeaderConsumer) for callers that
  must handle an open-ended set of header names (e.g. proxying).
- HttpServer relays streaming/chunked response bodies through a shared
  per-connection ThreadLocal buffer instead of relying on InputStream#transferTo
  (which allocates internally) or a fresh byte[8192] per chunked write.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
 2026-08-09 20:24:56 +00:00
Relism 524bdeb28b Fix badge HTML syntax in docs workflow 2026-05-12 16:34:59 +02:00
Relism c619c17949 Refactor JavaDoc generation and verification steps 2026-05-12 16:28:20 +02:00
Relism c368843ad4 ci: fix javadoc path, encoding and delegate docs to docs.yml 2026-05-12 16:15:33 +02:00
Relism 35293a0a57 feat(ci): add workflow for publishing JavaDoc to GitHub Pages 2026-05-12 15:42:39 +02:00
Relism c514897ffc fix(ci): publish versioned javadocs only on gh-pages 2026-05-11 16:53:17 +02:00
Relism 6314bcff5f fix(ci): correct javadoc publish path and maven settings schema 2026-05-11 16:18:49 +02:00
Relism ccc5550598 feat: introduce WebSocket support with new endpoints and transaction propagation enhancements 2026-05-11 16:14:26 +02:00
github-actions[bot] a4a16bdb00 chore(release): prepare 2.1.0-SNAPSHOT 2026-05-11 13:54:19 +00:00
673 changed files with 47110 additions and 8302 deletions
Expand all files Collapse all files
.gitea/maven-settings.xml
+24
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@@ -0,0 +1,24 @@
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
<!--
Used only by .gitea/workflows/publish-maven.yml (mvn -s .gitea/maven-settings.xml deploy).
Not used for local builds. PACKAGES_TOKEN is a real personal access token (write:package
scope) on the Relism account, read from the env var the workflow exports — never written
to disk. Deliberately not Gitea's own per-job GITEA_TOKEN: that token can't publish to
any package registry at all, a known unimplemented limitation
(https://github.com/go-gitea/gitea/issues/23642) — confirmed here by testing: it
authenticated fine against the plain API but still got 401 from this endpoint.
Basic auth (username/password): the <httpHeaders> form Gitea's own docs show for this is
honored by Maven's resolver (used for reading <repositories>) but not reliably by the
wagon-http provider maven-deploy-plugin actually uploads through.
-->
<servers>
<server>
<id>gitea</id>
<username>Relism</username>
<password>${env.PACKAGES_TOKEN}</password>
</server>
</servers>
</settings>
.gitea/workflows/publish-maven.yml
+49
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@@ -0,0 +1,49 @@
name: Publish Maven packages
# Flash's own POM keeps `2.1.0-SNAPSHOT` as its committed version — that's what local
# `mvn install` (Pathway's normal dev loop, see its pom.xml `flash.version` comment) always
# produces, and changing it here would break that. Gitea's Maven registry, unlike a real
# snapshot repository, refuses to re-publish an existing name+version (must delete first —
# see https://docs.gitea.com/usage/packages/maven#publish-a-package), so every push instead
# publishes under a throwaway version stamped with the commit it built from
# (`2.1.0-<short-sha>`), via `versions:set` on a checkout copy — never touching the committed
# POMs. Consumers (Pathway's `docker` Maven profile) pin `flash.version` to one specific
# published build and bump it by hand to pick up newer Flash changes; see
# pathway/pom.xml's `docker` profile for the other half of this.
on:
push:
branches: [master]
jobs:
publish:
runs-on: ubuntu-latest
# No actions/checkout here on purpose: it's a Node-based action, and this container
# (chosen for its preinstalled mvn/JDK 21) has no Node — checkout would fail with
# "node: executable file not found". A plain git clone needs neither.
container:
image: maven:3.9-eclipse-temurin-21
steps:
- name: Checkout
run: |
apt-get update && apt-get install -y --no-install-recommends git
git clone https://git.pixel-services.com/Relism/Flash5.git .
git checkout ${{ gitea.sha }}
- name: Stamp every module with a commit-scoped version
run: |
SHORT_SHA=$(git rev-parse --short HEAD)
mvn -B versions:set -DnewVersion="2.1.0-${SHORT_SHA}" -DprocessAllModules=true -DgenerateBackupPoms=false
echo "Publishing as 2.1.0-${SHORT_SHA}"
- name: Deploy to the Gitea Maven registry
env:
# Not GITEA_TOKEN: Gitea's own job token can't publish to package registries at
# all (a known, still-unimplemented limitation — see
# https://github.com/go-gitea/gitea/issues/23642). Confirmed by testing: GITEA_TOKEN
# authenticated fine against the plain API but still got 401 from this endpoint no
# matter the auth style. PACKAGES_TOKEN is a real PAT with write:package scope.
PACKAGES_TOKEN: ${{ secrets.PACKAGES_TOKEN }}
run: |
mvn -B -s .gitea/maven-settings.xml -DskipTests deploy \
-DaltReleaseDeploymentRepository=gitea::https://git.pixel-services.com/api/packages/Relism/maven \
-DaltSnapshotDeploymentRepository=gitea::https://git.pixel-services.com/api/packages/Relism/maven
.github/settings.xml
+1 -1
View File
@@ -1,7 +1,7 @@
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
http://maven.apache.org/xsd/maven-1.0.0.xsd">
http://maven.apache.org/xsd/settings-1.0.0.xsd">
<servers>
<server>
<id>Personal</id>
.github/workflows/ci.yml
+33 -1
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@@ -32,8 +32,40 @@ jobs:
server-username: MAVEN_USERNAME
server-password: MAVEN_PASSWORD
- name: Install h2spec 2.6.0
run: |
curl --fail --location --silent --show-error \
--output /tmp/h2spec.tar.gz \
https://github.com/summerwind/h2spec/releases/download/v2.6.0/h2spec_linux_amd64.tar.gz
echo "157ee0de702e01ad40e752dbf074b366027e550c8e7504f9450da2809e279318 /tmp/h2spec.tar.gz" \
| sha256sum --check
tar --extract --gzip --file /tmp/h2spec.tar.gz --directory /tmp
- name: Install nghttp client
run: |
sudo apt-get update
sudo apt-get install --yes nghttp2-client
- name: Install grpcurl 1.9.3
run: |
curl --fail --location --silent --show-error \
--output /tmp/grpcurl.tgz \
https://github.com/fullstorydev/grpcurl/releases/download/v1.9.3/grpcurl_1.9.3_linux_x86_64.tar.gz
echo "a926b62a85787ccf73ef8736b3ae554f1242e39d92bb8767a79d6dd23b11d1d5 /tmp/grpcurl.tgz" \
| sha256sum --check
tar --extract --gzip --file /tmp/grpcurl.tgz --directory /tmp grpcurl
- name: Build and test
run: mvn -B --settings .github/settings.xml clean verify
run: >-
mvn -B --settings .github/settings.xml
-Dh2spec.executable=/tmp/h2spec
-Dcurl.executable=/usr/bin/curl
-Dnghttp.executable=/usr/bin/nghttp
-Dgrpcurl.executable=/tmp/grpcurl
-Djdk.tracePinnedThreads=full
-Pjmh
-Dflash.performance.gates=true
clean verify
env:
MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
.github/workflows/docs.yml
+348
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@@ -0,0 +1,348 @@
name: Publish Docs
on:
workflow_dispatch:
inputs:
version:
description: 'Docs version to publish (e.g. 2.1.0)'
required: true
type: string
workflow_call:
inputs:
version:
description: 'Docs version to publish (e.g. 2.1.0)'
required: true
type: string
secrets:
MAVEN_USERNAME:
required: true
MAVEN_PASSWORD:
required: true
jobs:
docs:
name: Build JavaDoc & Update gh-pages
runs-on: ubuntu-latest
permissions:
contents: write
steps:
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Set up Temurin 21
uses: actions/setup-java@v4
with:
distribution: temurin
java-version: 21
cache: maven
- name: Build project (compile + resolve deps, skip tests)
run: mvn -B --settings .github/settings.xml clean verify -DskipTests
env:
MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
# javadoc:aggregate runs on the reactor root.
# With flash + flash-extensions both declared as modules in root pom.xml,
# this produces a single aggregated Javadoc covering all modules.
# Default output path: target/site/apidocs/ (no custom reportOutputDirectory set).
- name: Generate aggregated JavaDoc
run: |
mvn -B \
--settings .github/settings.xml \
-DskipTests \
org.apache.maven.plugins:maven-javadoc-plugin:3.6.3:aggregate
env:
MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
- name: Verify JavaDoc output exists
run: |
APIDOCS=""
if [ -f "target/site/apidocs/index.html" ]; then
APIDOCS="target/site/apidocs"
elif [ -f "target/reports/apidocs/index.html" ]; then
APIDOCS="target/reports/apidocs"
else
echo "ERROR: JavaDoc output not found."
echo
echo "Contents of target/:"
find target -maxdepth 5 2>/dev/null || echo "(empty)"
exit 1
fi
echo "APIDOCS_DIR=$APIDOCS" >> $GITHUB_ENV
COUNT=$(find "$APIDOCS" -name '*.html' | wc -l)
echo "JavaDoc OK — $COUNT HTML files at $APIDOCS"
- name: Checkout gh-pages
uses: actions/checkout@v4
with:
ref: gh-pages
path: gh-pages-out
token: ${{ secrets.GITHUB_TOKEN }}
- name: Copy JavaDoc to versioned folder and latest
run: |
VERSION=${{ inputs.version }}
mkdir -p gh-pages-out/javadoc/$VERSION
cp -r "$APIDOCS_DIR"/. gh-pages-out/javadoc/$VERSION/
rm -rf gh-pages-out/latest
mkdir -p gh-pages-out/latest
cp -r "$APIDOCS_DIR"/. gh-pages-out/latest/
- name: Regenerate index.html
run: |
cd gh-pages-out
python3 - <<'EOF'
import os, re
def version_key(v):
parts = re.findall(r'\d+', v)
return [int(p) for p in parts] if parts else [0]
versions = sorted(
[d for d in os.listdir("javadoc") if os.path.isdir(f"javadoc/{d}")],
key=version_key,
reverse=True
)
latest = versions[0] if versions else None
rows = "\n".join(
f'''
<div class="release">
<div class="release-info">
<span class="version">{v}</span>
{"<span class='badge'>latest</span>" if v == latest else ""}
</div>
<a href="javadoc/{v}/index.html">Open</a>
</div>
'''
for v in versions
)
html = """<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Flash — JavaDoc</title>
<style>
:root {
--bg: #ffffff;
--surface: #fafafa;
--border: #e5e7eb;
--text: #111827;
--muted: #6b7280;
--accent: #111827;
--accent-hover: #000000;
}
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
font-family:
Inter,
ui-sans-serif,
system-ui,
-apple-system,
BlinkMacSystemFont,
"Segoe UI",
sans-serif;
background: var(--bg);
color: var(--text);
min-height: 100vh;
padding: 64px 24px;
}
.container {
width: 100%;
max-width: 760px;
margin: 0 auto;
}
.header {
margin-bottom: 40px;
}
.header h1 {
font-size: 2rem;
font-weight: 600;
letter-spacing: -0.04em;
}
.header p {
margin-top: 10px;
color: var(--muted);
font-size: 0.95rem;
line-height: 1.6;
}
.latest {
display: inline-flex;
align-items: center;
margin-top: 20px;
padding-bottom: 2px;
color: var(--accent);
text-decoration: none;
font-size: 0.95rem;
font-weight: 500;
border-bottom: 1px solid transparent;
transition:
border-color 0.15s ease,
color 0.15s ease;
}
.latest:hover {
border-color: var(--accent);
color: var(--accent-hover);
}
.list {
border-top: 1px solid var(--border);
}
.release {
display: flex;
align-items: center;
justify-content: space-between;
gap: 16px;
padding: 18px 0;
border-bottom: 1px solid var(--border);
}
.release-info {
display: flex;
align-items: center;
gap: 12px;
}
.version {
font-size: 0.96rem;
font-weight: 500;
letter-spacing: -0.01em;
}
.badge {
font-size: 0.72rem;
font-weight: 600;
color: var(--muted);
border: 1px solid var(--border);
padding: 2px 8px;
}
.release a {
color: var(--accent);
text-decoration: none;
font-size: 0.92rem;
}
.release a:hover {
text-decoration: underline;
}
.empty {
padding: 32px 0;
color: var(--muted);
font-size: 0.95rem;
}
@media (max-width: 640px) {
body {
padding: 40px 20px;
}
.header h1 {
font-size: 1.7rem;
}
.release {
flex-direction: column;
align-items: flex-start;
}
}
</style>
</head>
<body>
<div class="container">
<header class="header">
<h1>Flash JavaDoc</h1>
<p>
API documentation for all published Flash releases.
</p>
""" + (
f'''
<a class="latest" href="latest/index.html">
Latest release — {latest}
</a>
'''
if latest else ""
) + """
</header>
""" + (
f'''
<div class="list">
{rows}
</div>
'''
if rows else
'''
<div class="empty">
No versions published yet.
</div>
'''
) + """
</div>
</body>
</html>"""
with open("index.html", "w", encoding="utf-8") as f:
f.write(html)
print(f"index.html generated — {len(versions)} version(s): {versions}")
EOF
- name: Push gh-pages
run: |
cd gh-pages-out
git config user.name "github-actions[bot]"
git config user.email "github-actions[bot]@users.noreply.github.com"
git add -A
git diff --cached --quiet || git commit -m "docs(javadoc): publish ${{ inputs.version }}"
git push origin gh-pages
.github/workflows/release.yml
+18 -84
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@@ -6,13 +6,15 @@ on:
- 'v*'
jobs:
# ── 1. Build, GPG-sign, deploy to Maven releases ──────────────────────────
release:
name: Build, Sign, Deploy & Publish
name: Build, Sign & Deploy
runs-on: ubuntu-latest
permissions:
contents: write
pages: write
id-token: write
outputs:
version: ${{ steps.version.outputs.VERSION }}
steps:
- name: Checkout
@@ -47,90 +49,22 @@ jobs:
MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
- name: Generate aggregated JavaDoc
run: |
mvn -B --settings .github/settings.xml \
-pl flash,flash-extensions -am \
javadoc:aggregate -DskipTests
env:
MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
- name: Checkout gh-pages
uses: actions/checkout@v4
with:
ref: gh-pages
path: gh-pages-out
token: ${{ secrets.GITHUB_TOKEN }}
- name: Copy JavaDoc to versioned folder
run: |
VERSION=${{ steps.version.outputs.VERSION }}
mkdir -p gh-pages-out/javadoc/$VERSION
cp -r target/reports/apidocs/. gh-pages-out/javadoc/$VERSION/
rm -rf gh-pages-out/latest
mkdir -p gh-pages-out/latest
cp -r target/reports/apidocs/. gh-pages-out/latest/
- name: Regenerate index.html
run: |
cd gh-pages-out
python3 - <<'EOF'
import os, re
versions = sorted(
[d for d in os.listdir("javadoc") if os.path.isdir(f"javadoc/{d}")],
key=lambda v: [int(x) for x in re.sub(r'[^0-9.]', '', v).split('.') if x],
reverse=True
)
rows = "\n".join(
f' <li><a href="javadoc/{v}/index.html">{v}</a></li>'
for v in versions
)
html = f"""<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Flash JavaDoc</title>
<style>
body {{ font-family: sans-serif; max-width: 600px; margin: 4rem auto; }}
h1 {{ font-size: 1.6rem; }}
ul {{ line-height: 2; }}
a {{ color: #0070f3; text-decoration: none; }}
a:hover {{ text-decoration: underline; }}
</style>
</head>
<body>
<h1>Flash — JavaDoc</h1>
<p><a href="latest/index.html">&#8594; Latest</a></p>
<h2>All versions</h2>
<ul>
{rows}
</ul>
</body>
</html>"""
with open("index.html", "w") as f:
f.write(html)
print(f"index.html generated with {len(versions)} versions: {versions}")
EOF
- name: Push gh-pages
run: |
cd gh-pages-out
git config user.name "github-actions[bot]"
git config user.email "github-actions[bot]@users.noreply.github.com"
git add -A
git diff --cached --quiet || git commit -m "docs(javadoc): release ${{ steps.version.outputs.VERSION }}"
git push origin gh-pages
- name: Create GitHub Release
uses: softprops/action-gh-release@v2
with:
tag_name: v${{ steps.version.outputs.VERSION }}
name: v${{ steps.version.outputs.VERSION }}
tag_name: ${{ github.ref_name }}
name: ${{ github.ref_name }}
generate_release_notes: true
draft: false
prerelease: false
# ── 2. Publish JavaDoc (single source of truth: docs.yml) ─────────────────
docs:
name: Publish JavaDoc
needs: release
uses: ./.github/workflows/docs.yml
with:
version: ${{ needs.release.outputs.version }}
secrets:
MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
.idea/encodings.xml
Generated
+4 -4
View File
@@ -17,8 +17,8 @@
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-jackson/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-limiter/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-limiter/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-oidc/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-oidc/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-security-oidc/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-security-oidc/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-openapi/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-openapi/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-routeviewer/src/main/java" charset="UTF-8" />
@@ -31,8 +31,8 @@
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-view-thymeleaf/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-view/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-view/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-vite/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/flash-ext-vite/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash-extensions/src/main/resources" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/flash/src/main/java" charset="UTF-8" />
.idea/workspace.xml
Generated
+72 -283
View File
@@ -4,292 +4,42 @@
<option name="autoReloadType" value="SELECTIVE" />
</component>
<component name="ChangeListManager">
<list default="true" id="fc757130-fe3e-4ea9-8d69-c26ffb8545a4" name="Changes" comment="add core view extension with JTE and Thymeleaf support">
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/pom.xml" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/DataExtension.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Page.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Repository.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/ResourceRegistry.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Sort.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TransactionIsolation.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TransactionPropagation.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Tx.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxDefinition.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxException.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxManager.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxOutcome.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxResourceKey.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxStatus.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxSynchronization.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-hibernate/pom.xml" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateRepository.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateTxManager.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateTxStatus.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-hibernate/src/test/java/dev/relism/flash/ext/data/hibernate/HibernateTxManagerTest.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-hibernate/src/test/java/dev/relism/flash/ext/data/hibernate/TestHelper.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-jdbc/pom.xml" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-jdbc/src/main/java/dev/relism/flash/ext/data/jdbc/JdbcRepository.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-data-jdbc/src/main/java/dev/relism/flash/ext/data/jdbc/JdbcTxManager.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/main/java/dev/relism/ext/webbundler/ViteFrontendStrategy.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/main/java/dev/relism/flash/ext/webbundler/ViteFrontendStrategy.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/main/java/dev/relism/ext/webbundler/WatchList.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/main/java/dev/relism/flash/ext/webbundler/WatchList.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/main/java/dev/relism/ext/webbundler/WebBundlerConfig.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/main/java/dev/relism/flash/ext/webbundler/WebBundlerConfig.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/main/java/dev/relism/ext/webbundler/WebBundlerExtension.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/main/java/dev/relism/flash/ext/webbundler/WebBundlerExtension.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/main/java/dev/relism/ext/webbundler/WebBundlerRuntime.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/main/java/dev/relism/flash/ext/webbundler/WebBundlerRuntime.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/AssetsSourceTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/AssetsSourceTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/CommandSafetyPolicyTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/CommandSafetyPolicyTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/InstallCacheTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/InstallCacheTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/ModeResolverTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/ModeResolverTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/PackageManagerAdapterTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/PackageManagerAdapterTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/WebBundlerConfigTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/WebBundlerConfigTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/WebBundlerExtensionDevGuardTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/WebBundlerExtensionDevGuardTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash-extensions/flash-web-bundler/src/test/java/dev/relism/ext/webbundler/WebBundlerExtensionIntegrationTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash-extensions/flash-ext-web-bundler/src/test/java/dev/relism/flash/ext/webbundler/WebBundlerExtensionIntegrationTest.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/ChunkedInputStream.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/ChunkedInputStream.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/Flash.java" beforeDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/HttpServer.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/HttpServer.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/RequestParser.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/RequestParser.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/ServerHandle.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/ServerHandle.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/api/multipart/Multipart.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/api/multipart/Multipart.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/api/multipart/Part.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/api/multipart/Part.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/exceptions/InitializationException.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/exceptions/InitializationException.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/AnnotationProcessor.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/AnnotationProcessor.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/ExtensionPhase.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/ExtensionPhase.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/FlashApp.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/FlashApp.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/FlashConfiguration.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/FlashConfiguration.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/FlashContext.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/FlashContext.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/FlashExtension.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/FlashExtension.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/FlashRegistrar.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/FlashRegistrar.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/FlashScope.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/FlashScope.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/PackageScanner.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/PackageScanner.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/RouteDefinition.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/RouteDefinition.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/RouteEvent.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/RouteEvent.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/extension/RouteListener.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/extension/RouteListener.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/http/ContentType.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/http/ContentType.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/http/HttpMethod.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/http/HttpMethod.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/http/HttpStatus.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/http/HttpStatus.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/HeaderMap.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/HeaderMap.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/PathParams.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/PathParams.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/QueryParams.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/QueryParams.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/Request.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/Request.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/RequestBody.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/RequestBody.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/RequestHandler.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/RequestHandler.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/RequestHelper.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/RequestHelper.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/RequestLine.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/RequestLine.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/Response.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/Response.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/models/SimpleHandler.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/models/SimpleHandler.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/AbstractRouter.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/AbstractRouter.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/CONNECT.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/CONNECT.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/DELETE.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/DELETE.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/GET.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/GET.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/HEAD.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/HEAD.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/Middleware.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/Middleware.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/OPTIONS.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/OPTIONS.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/PATCH.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/PATCH.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/POST.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/POST.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/PURGE.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/PURGE.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/PUT.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/PUT.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/PathUtils.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/PathUtils.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/Route.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/Route.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/Routes.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/Routes.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/TRACE.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/TRACE.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/routers/fastpathrouter/FastPathRouterImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/routers/fastpathrouter/FastPathRouterImpl.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/routers/fastpathrouter/FastPathViews.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/routing/routers/fastpathrouter/FastPathViews.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/routing/routers/radix/RadixPathRouterImpl.java" beforeDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/template/ByteTemplate.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/template/ByteTemplate.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/main/java/dev/relism/template/ErrorPages.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/main/java/dev/relism/flash/template/ErrorPages.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/ChunkedInputStreamTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/ChunkedInputStreamTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/HttpServerConcurrencyTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/HttpServerConcurrencyTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/HttpServerTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/HttpServerTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/RequestParserTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/RequestParserTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/api/multipart/MultipartTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/api/multipart/MultipartTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/http/ContentTypeTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/http/ContentTypeTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/http/HttpMethodTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/http/HttpMethodTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/http/HttpStatusTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/http/HttpStatusTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/HeaderMapTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/HeaderMapTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/PathParamsTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/PathParamsTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/QueryParamsTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/QueryParamsTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/RequestBodyTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/RequestBodyTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/RequestLineTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/RequestLineTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/RequestTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/RequestTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/ResponseTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/ResponseTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/models/SimpleHandlerTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/models/SimpleHandlerTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/routing/AbstractRouterTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/routing/AbstractRouterTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/routing/PathUtilsTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/routing/PathUtilsTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/routing/routers/fastpathrouter/FastPathRouterImplTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/routing/routers/fastpathrouter/FastPathRouterImplTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/routing/routers/fastpathrouter/FastPathViewsTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/routing/routers/fastpathrouter/FastPathViewsTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/template/ByteTemplateTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/template/ByteTemplateTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/flash/src/test/java/dev/relism/template/ErrorPagesTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/flash/src/test/java/dev/relism/flash/template/ErrorPagesTest.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
</list>
<option name="SHOW_DIALOG" value="false" />
<option name="HIGHLIGHT_CONFLICTS" value="true" />
<option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
<option name="LAST_RESOLUTION" value="IGNORE" />
</component>
<component name="CopilotChats">
<option name="panelChat">
<chat>
<option name="activeSessionId" value="a8d77f48-1eb9-4c5a-961c-1e1452a25ca0" />
<option name="sessions">
<session>
<option name="chatType" value="PANEL" />
<option name="id" value="a8d77f48-1eb9-4c5a-961c-1e1452a25ca0" />
<option name="modeId" value="Agent" />
<option name="modelType" value="builtin_family" />
<option name="modelValue" value="auto" />
<option name="status" value="Completed" />
<option name="targetType" value="LOCAL" />
</session>
<session>
<option name="chatType" value="PANEL" />
<option name="id" value="82f48e09-2ca4-4a27-9a04-c65d7a5f0b88" />
<option name="modeId" value="Agent" />
<option name="modelType" value="builtin_family" />
<option name="modelValue" value="auto" />
<option name="targetType" value="LOCAL" />
</session>
</option>
<option name="type" value="PANEL" />
</chat>
</option>
</component>
<component name="CopilotPersistence">
<persistenceIdMap>
<entry key="_C:/Users/elorc/Documents/Coding/Java/practice/Flash" value="3Axc6mzLyNvh4TgGFvNSCSq83xw" />
@@ -298,7 +48,7 @@
</persistenceIdMap>
</component>
<component name="EmbeddingIndexingInfo">
<option name="cachedIndexableFilesCount" value="407" />
<option name="cachedIndexableFilesCount" value="448" />
<option name="fileBasedEmbeddingIndicesEnabled" value="true" />
</component>
<component name="FileTemplateManagerImpl">
@@ -534,7 +284,17 @@
<workItem from="1776931805422" duration="16122000" />
<workItem from="1777051880577" duration="2650000" />
<workItem from="1777150747725" duration="837000" />
<workItem from="1777198150359" duration="638000" />
<workItem from="1777198150359" duration="5628000" />
<workItem from="1777451402985" duration="709000" />
<workItem from="1777534738187" duration="13411000" />
<workItem from="1777970837797" duration="5042000" />
<workItem from="1778160998498" duration="2931000" />
<workItem from="1778319397472" duration="5040000" />
<workItem from="1778352978922" duration="2169000" />
<workItem from="1778414714349" duration="23000" />
<workItem from="1778417425077" duration="3241000" />
<workItem from="1778489168036" duration="9828000" />
<workItem from="1778576795735" duration="5051000" />
</task>
<task id="LOCAL-00001" summary="Initial">
<option name="closed" value="true" />
@@ -632,7 +392,31 @@
<option name="project" value="LOCAL" />
<updated>1776724331443</updated>
</task>
<option name="localTasksCounter" value="13" />
<task id="LOCAL-00013" summary="refactor: rename packages and files to use 'flash' prefix for consistency">
<option name="closed" value="true" />
<created>1777199691803</created>
<option name="number" value="00013" />
<option name="presentableId" value="LOCAL-00013" />
<option name="project" value="LOCAL" />
<updated>1777199691804</updated>
</task>
<task id="LOCAL-00014" summary="fix: enhance global key validation and update template parameters">
<option name="closed" value="true" />
<created>1777451475753</created>
<option name="number" value="00014" />
<option name="presentableId" value="LOCAL-00014" />
<option name="project" value="LOCAL" />
<updated>1777451475753</updated>
</task>
<task id="LOCAL-00015" summary="feat: introduce WebSocket support with new endpoints and transaction propagation enhancements">
<option name="closed" value="true" />
<created>1778508899541</created>
<option name="number" value="00015" />
<option name="presentableId" value="LOCAL-00015" />
<option name="project" value="LOCAL" />
<updated>1778508899541</updated>
</task>
<option name="localTasksCounter" value="16" />
<servers />
</component>
<component name="TypeScriptGeneratedFilesManager">
@@ -674,7 +458,12 @@
<MESSAGE value="preparing for another refactoring..." />
<MESSAGE value="implement OpenAPI contributor integration for rate limiting and response headers" />
<MESSAGE value="add core view extension with JTE and Thymeleaf support" />
<option name="LAST_COMMIT_MESSAGE" value="add core view extension with JTE and Thymeleaf support" />
<MESSAGE value="refactor: rename packages and files to use 'flash' prefix for consistency" />
<MESSAGE value="fix: enhance global key validation and update template parameters" />
<MESSAGE value="chore(release): prepare 2.1.0-SNAPSHOT" />
<MESSAGE value="feat: introduce Spec and Query interfaces with transaction propagation enhancements" />
<MESSAGE value="feat: introduce WebSocket support with new endpoints and transaction propagation enhancements" />
<option name="LAST_COMMIT_MESSAGE" value="feat: introduce WebSocket support with new endpoints and transaction propagation enhancements" />
</component>
<component name="XSLT-Support.FileAssociations.UIState">
<expand />
AGENTS.md
+7 -3
View File
@@ -36,9 +36,10 @@ Format: `<type>(<scope>): <short description>`
| `chore` | Build, deps, tooling — no production code |
| `ci` | Changes to GitHub Actions workflows |
Allowed scopes: `core`, `ext-jackson`, `ext-openapi`, `ext-oidc`, `ext-routeviewer`,
`ext-view-core`, `ext-view-jte`, `ext-view-thymeleaf`, `ext-limiter`, `ext-web-bundler`,
`ext-data-core`, `ext-data-jdbc`, `ext-data-hibernate`, `release`, `deps`, `ci`.
Allowed scopes: `core`, `testing`, `ext-jackson`, `ext-openapi`, `ext-oidc`, `ext-routeviewer`,
`ext-view-core`, `ext-view-jte`, `ext-view-thymeleaf`, `ext-limiter`, `ext-vite`,
`ext-mcp`, `ext-validation`, `ext-scheduler`, `ext-data-core`, `ext-data-jdbc`, `ext-data-hibernate`,
`ext-cache-core`, `ext-cache-caffeine`, `release`, `deps`, `ci`.
Examples:
```
@@ -85,6 +86,9 @@ chore(release): 2.1.0
- Root POM: `flash-parent` — defines all dependency versions and plugin config.
- `flash` module: the core framework JAR.
- `flash-testing` module: JUnit 5 harness for testing Flash applications. Deliberately not
under `flash-extensions/` — it is not something you `install()`, and it carries
`junit-jupiter-api` at compile scope.
- `flash-extensions` POM: aggregator for all extension modules.
- Extensions live under `flash-extensions/flash-ext-*/`.
- When adding a new extension:
README.md
+385 -36
View File
@@ -1,19 +1,33 @@
# Flash
A high-performance HTTP/1.1 server library for Java 21, built around virtual threads and a zero-allocation FSM router.
A high-performance HTTP/1.1 and HTTP/2 server library for Java 21, built around virtual threads,
a zero-allocation FSM router, bounded protocol state, and one shared request/response API.
## Modules
| Module | Description |
|---|---|
| `flash` | Core server library — router, request parser, HTTP I/O transport |
| `flash-extensions/flash-ext-jackson` | Jackson JSON integration |
| `flash` | Core server library — HTTP/1.1 and HTTP/2 transport, router, request/response model |
| `flash-testing` | JUnit 5 harness — boot an app on an ephemeral port, fake its services, assert on responses |
| `flash-extensions/flash-ext-jackson-core` | What every Jackson format shares: the codec, the body handler, the constraints a body is checked against |
| `flash-extensions/flash-ext-jackson-json` | JSON bodies and responses |
| `flash-extensions/flash-ext-jackson-xml` | XML bodies and responses |
| `flash-extensions/flash-ext-openapi` | OpenAPI 3.0 spec + Swagger UI |
| `flash-extensions/flash-ext-oidc` | OIDC Authorization Code + PKCE flow |
| `flash-extensions/flash-ext-security-core` | Security: authentication chain, annotations, sessions, OpenAPI |
| `flash-extensions/flash-ext-security-oidc` | OpenID Connect: bearer tokens, code flow + PKCE |
| `flash-extensions/flash-ext-security-apikey` | API keys |
| `flash-extensions/flash-ext-security-form` | Password sign-in |
| `flash-extensions/flash-ext-security-oauth-server` | OAuth 2.1 authorization server for the application's own users and resources |
| `flash-extensions/flash-ext-security-test` | Test identities, fake OpenID Provider |
| `flash-extensions/flash-ext-mcp` | MCP (Model Context Protocol) server — Streamable HTTP, secured by flash-ext-security-core |
| `flash-extensions/flash-ext-view-core` | Minimal shared SSR runtime primitives |
| `flash-extensions/flash-ext-view-jte` | Opinionated jte SSR extension |
| `flash-extensions/flash-ext-view-thymeleaf` | Opinionated Thymeleaf SSR extension |
| `flash-bench` | Demo harness (OIDC + OpenAPI + Jackson) |
| `flash-extensions/flash-ext-vite` | Vite frontend: dev server in DEV, the built SPA from the jar otherwise |
| `flash-extensions/flash-ext-vite-maven-plugin` | Builds the Vite frontend into the jar during `mvn package` |
| `flash-extensions/flash-ext-scheduler` | Interval and cron background jobs on virtual threads |
| `flash-extensions/flash-ext-cache-core` | Caching contract — `Cache`, `CacheManager`, `CacheSpec` |
| `flash-extensions/flash-ext-cache-caffeine` | In-process cache backed by Caffeine |
## Requirements
@@ -57,31 +71,31 @@ app.post("/echo", (req, res) -> {
});
app.get("/users/{id}", (req, res) -> {
String id = req.pathParam("id");
String id = req.param("id");
return "user:" + id;
});
```
### Class-based handlers
Extend `RequestHandler` (or a subclass like `JacksonHandler`) and annotate with `@Route`:
Extend `RequestHandler`, annotate it, then scan its package. Dependencies are cached in
`onInit()` after Flash has resolved its complete boot-time service graph:
```java
@Route(method = HttpMethod.GET, path = "/api/users")
public class ListUsers extends JacksonHandler {
@Override
public Object handle(Request req, Response res) throws Exception {
return json(res, List.of("alice", "bob"));
}
@GET("/api/users")
public class ListUsers extends RequestHandler {
private UserService users;
@Override protected void onInit() { users = require(UserService.class); }
@Override public Object handle(Request req, Response res) { return users.list(); }
}
// Register:
app.register(new ListUsers());
app.scan("dev.example.api");
```
### Middleware
Apply middleware via `.with()` on the `RouteHandle` returned by any registration call:
Apply middleware at registration. Flash composes the final chain at boot:
```java
Middleware authCheck = next -> (req, res) -> {
@@ -90,14 +104,13 @@ Middleware authCheck = next -> (req, res) -> {
return next.handle(req, res);
};
app.get("/secure", (req, res) -> "secret data")
.with(authCheck);
app.get("/secure", (req, res) -> "secret data", authCheck);
```
Multiple middlewares are composed outermost-first (left-to-right in the call):
```java
app.get("/admin", handler).with(logging, auth, rateLimit);
app.get("/admin", handler, logging, auth, rateLimit);
// execution order: logging → auth → rateLimit → handler
```
@@ -119,31 +132,41 @@ processors, services):
```java
app.mount("/api", scope -> {
scope.get("/health", (req, res) -> "ok"); // → GET /api/health
scope.register(new UserHandler()); // @Route(path="/users") → GET /api/users
scope.scan("dev.example.api");
});
```
## Extensions
Extensions are installed before route registration. Each extension receives the `FlashRegistrar`
and `FlashContext` — it can register routes, expose services, and register annotation processors.
Extensions have one declarative `configure` method. They declare services, processors and route
callbacks; Flash resolves the complete graph, materialises routes, compiles both routers, then
opens listeners. Extension install order never makes a service “not ready”.
```java
FlashApp.create(8080)
.install(new JacksonExtension())
.install(new OpenApiExtension("/openapi", "My API", "1.0.0"))
.install(new OidcExtension(oidcConfig))
.register(new MyHandler())
.scan("dev.example.handlers")
.start();
```
See extension-specific READMEs for full details:
- [`flash-ext-jackson`](flash-extensions/flash-ext-jackson/README.md)
- [`flash-ext-jackson-core`](flash-extensions/flash-ext-jackson-core/README.md)
- [`flash-ext-jackson-json`](flash-extensions/flash-ext-jackson-json/README.md)
- [`flash-ext-jackson-xml`](flash-extensions/flash-ext-jackson-xml/README.md)
- [`flash-ext-openapi`](flash-extensions/flash-ext-openapi/README.md)
- [`flash-ext-oidc`](flash-extensions/flash-ext-oidc/README.md)
- [`flash-ext-security-core`](flash-extensions/flash-ext-security-core/docs/README.md)
- [`flash-ext-security-oidc`](flash-extensions/flash-ext-security-oidc/docs/README.md)
- [`flash-ext-security-apikey`](flash-extensions/flash-ext-security-apikey/docs/README.md)
- [`flash-ext-security-form`](flash-extensions/flash-ext-security-form/docs/README.md)
- [`flash-ext-security-test`](flash-extensions/flash-ext-security-test/docs/README.md)
- [`flash-ext-mcp`](flash-extensions/flash-ext-mcp/docs/README.md)
- [`flash-ext-view-jte`](flash-extensions/flash-ext-view-jte/README.md)
- [`flash-ext-view-thymeleaf`](flash-extensions/flash-ext-view-thymeleaf/README.md)
- [`flash-ext-scheduler`](flash-extensions/flash-ext-scheduler/docs/README.md)
- [`flash-ext-cache-caffeine`](flash-extensions/flash-ext-cache-caffeine/docs/README.md)
- [`flash-testing`](flash-testing/docs/README.md)
## Error handlers
@@ -163,24 +186,353 @@ app.onException((ex, req, res) -> {
|---|---|---|
| `port` | — | TCP port to bind |
| `host` | `"0.0.0.0"` | Bind address |
| `tls` | `null` | TLS for the default listener — see [TLS](#tls) |
| `listeners` | `[]` | Multiple bind targets (port + host + optional TLS) on one app — see [TLS](#tls) |
| `maxHeaderBufferSize` | `65536` | Max size of the header buffer (bytes) |
| `wsFrameBufferSize` | `65536` | Per-connection WebSocket read buffer (bytes) |
| `headerReadTimeoutMs` | `10000` | Once a request's first byte arrives, how long the full header block may take. Bounds slowloris-style attacks — see [`HTTP1-HARDENING.md`](flash/docs/core/HTTP1-HARDENING.md). |
| `idleKeepAliveTimeoutMs` | `60000` | How long a keep-alive connection may sit idle waiting for its next request. |
| `bodyReadTimeoutMs` | `30000` | How long reading a request body (handler or automatic drain) may take. |
| `shutdownDrainTimeoutMs` | `15000` | How long graceful shutdown waits for in-flight requests before force-closing. |
| `maxConnections` | auto (~heap/10MB) | Maximum concurrent connections across all listeners before new ones are closed immediately at accept time, before any per-connection state (TLS handshake included) is created. Auto-scales from `Runtime.maxMemory()`; set explicitly for a known deployment size, or `0` to disable. |
| `http2Enabled` | `false` | Whether TLS listeners advertise HTTP/2 through ALPN. |
| `http2CleartextEnabled` | `false` | Whether plaintext listeners accept HTTP/2 prior knowledge (h2c). Independent from TLS HTTP/2. |
| `h2HuffmanDynamicValues` | `false` | HPACK-Huffman encode runtime response values. Constants remain pre-encoded; the measured default avoids an extra encode pass. |
| `h2MaxResetStreamsPerInterval` | `200` | Rapid Reset budget per rolling interval. |
| `h2MaxStreamsCreatedPerInterval` | `400` | New-stream budget per rolling interval. |
| `h2AbuseRateIntervalMs` | `10000` | Rolling interval for the two operator-tunable rate limits above. |
| `h2MaxStreamsPerConnection` | `100000` | Total stream budget; `0` disables it. |
| `h2MaxBytesPerConnection` | `0` | Optional total wire-byte budget; `0` disables it. |
| `h2MaxConnectionLifetimeMs` | `0` | Optional connection lifetime; `0` disables it. |
| `h2StreamIdleTimeoutMs` | `60000` | Inactive open-stream deadline. |
| `sendDate` | `true` | Add an RFC 9110 `Date` field to responses; disable when an upstream proxy supplies it. |
## Protocols
Routes, middleware, `Request`, `Response`, bodies, trailers, streaming and WebSockets use the same
API on HTTP/1.1 and HTTP/2. Protocol selection happens once per connection:
- On TLS listeners, enable `http2Enabled`; Flash advertises `h2` and `http/1.1` through ALPN and
uses the protocol selected by the client. Existing HTTP/1.1 clients continue to work.
- On plaintext listeners, enable `http2CleartextEnabled` to accept the HTTP/2 prior-knowledge
preface on the same port as HTTP/1.1. Clients that do not send that exact preface are parsed as
HTTP/1.1.
- With both switches left at their default `false`, Flash behaves as an HTTP/1.1 server.
After enabling the appropriate switch, application routes need no protocol-specific code. TLS
still requires the normal certificate configuration shown below.
Flash deliberately does not implement HTTP/2 server push, RFC 7540 dependency-tree priority
scheduling, or the obsolete HTTP/1.1 `Upgrade: h2c` transition. Server push has no application API,
RFC 9113 deprecated the old priority scheme, and cleartext HTTP/2 uses prior knowledge instead.
See the [HTTP/2 compliance record](flash/docs/http2/COMPLIANCE.md) for exact coverage.
## WebSockets over HTTP/2
The same `ws(path, handler)` route serves WebSockets over HTTP/1.1 and HTTP/2. When HTTP/2 is
enabled, Flash advertises RFC 8441 extended CONNECT support and carries WebSocket frames inside
flow-controlled DATA frames. No alternate handler, route, or session API is required:
```java
app.ws("/live", handler);
```
HTTP/1.1 clients use the ordinary `101 Switching Protocols` upgrade. HTTP/2 clients use an
extended CONNECT and receive status `200`; Flash applies the same RFC 6455 framing, masking,
fragmentation, close, and callback behavior on both transports. Client support for negotiating
WebSockets over HTTP/2 varies, so clients without RFC 8441 support continue to use HTTP/1.1.
## TLS
HTTPS and WSS are a transport-layer concern only. Once a listener is bound, the accepted socket
is plain or TLS; the selected HTTP connection implementation then performs either the HTTP/1.1
upgrade or the HTTP/2 extended CONNECT. WSS does not require a separate route or handler API.
### Quick start
```java
FlashApp.create(FlashConfiguration.builder()
.port(443)
.tls(TlsConfig.keystore(Path.of("cert.p12"), "changeit"))
.build())
.get("/ping", (req, res) -> "pong") // HTTPS
.ws("/live", handler) // WSS, same route API
.start();
```
### Multiple listeners
One app can bind any number of ports, each independently plain or TLS:
```java
FlashApp.create(FlashConfiguration.builder()
.listener(new FlashConfiguration.Listener(80)) // plain
.listener(new FlashConfiguration.Listener(443, TlsConfig.keystore(cert, pass))) // TLS
.build());
```
A non-empty `listeners` list takes precedence over the top-level `port`/`host`/`tls` fields.
Each listener gets its own accept threads; the router, WS router, and virtual-thread executor
are shared by all of them — one app, N ports.
### `TlsConfig`
| Factory | Use |
|---|---|
| `TlsConfig.keystore(Path, String)` | Builds the `SSLContext` from a PKCS12/JKS keystore (type guessed from the extension). Pins `TLSv1.2`/`TLSv1.3` as enabled protocols; cipher suites are left at the JDK's own curated default. |
| `TlsConfig.ofContext(SSLContext)` | Escape hatch — the given `SSLContext` is used exactly as built. Flash never calls `setSSLParameters` on this path beyond what you explicitly request via `clientAuth`/`applicationProtocols`, so anything else you configured (custom `KeyManager`, ALPN, cipher suites) is authoritative. |
Chainable on either factory:
```java
TlsConfig.keystore(cert, pass)
.clientAuth(ClientAuth.REQUIRE) // mTLS: NONE (default) | OPTIONAL | REQUIRE
.applicationProtocols("acme-tls/1", "http/1.1") // ALPN, in preference order
```
**SNI** falls out of `keystore()` for free: a keystore holding more than one certificate entry
is matched against the requested hostname by each certificate's SAN (falling back to CN) — no
per-hostname config. The first entry in the keystore is the default when SNI is absent or
matches nothing (same convention as nginx/HAProxy's `default_server`).
**ALPN and custom certificate selection** (e.g. TLS-ALPN-01 / RFC 8737 for on-demand ACME
issuance): ALPN is resolved while consuming `ClientHello`/producing `ServerHello`, which always
precedes `Certificate` production. A custom `X509ExtendedKeyManager` passed via `ofContext`
can therefore read `engine.getHandshakeApplicationProtocol()` (or
`((SSLSocket) socket).getHandshakeApplicationProtocol()`) inside
`chooseEngineServerAlias`/`chooseServerAlias` — the negotiated protocol is already resolved by
then, so the certificate decision can key off it.
**mTLS with a private CA**: `clientAuth(...)` only requests/requires a client certificate;
`keystore()` deliberately doesn't expose a way to configure which CAs are trusted for that
certificate (it uses the JDK default trust store). For a private CA, build the `SSLContext`
yourself with a `TrustManagerFactory` and use `ofContext(...)`.
### Reading TLS info from a request
```java
app.get("/whoami", (req, res) -> {
if (!req.isSecure()) return "plain";
SSLSession session = req.sslSession(); // null iff !isSecure()
X509Certificate peer = (X509Certificate) session.getPeerCertificates()[0]; // mTLS only
return session.getCipherSuite() + " / " + session.getProtocol();
});
```
`Request.isSecure()` / `Request.sslSession()` cost nothing extra per request: the `SSLSocket`
reference is threaded through once per connection (same mechanism as `remoteAddress()`), and
`sslSession()` only calls `SSLSocket#getSession()` — a cached-field read once the handshake
that got the request this far has already completed, never a forced handshake.
`WebSocketSession` mirrors this exactly (`isSecure()`, `sslSession()`) by delegating to the
upgrading `Request` — no separate TLS state is tracked for WS.
## Object lifetime
`Request` and `Response` are **pooled per connection**, not allocated per request: one instance is
created per connection and repositioned (`reset()`) over each new request/response in turn — the
same idiom Java NIO buffers use, applied to the whole request/response model
(`flash/docs/core/MESSAGE-MODEL.md` has the full design record). This is what makes a warm h1
request/response cycle 0 B/op.
**Do not retain a `Request` or `Response` past the handler that received it.** A reference kept in
a field, a captured closure, a `CompletableFuture` continuation, or a background thread and read
*after* the handler returns will observe whatever the *next* request on that connection
repositioned the same instance to — not the request you thought you had:
```java
// WRONG — captures `req`, reads it after the handler has returned
app.get("/slow", (req, res) -> {
CompletableFuture.runAsync(() -> log(req.header("X-Trace-Id"))); // may log the NEXT request's header
return "ok";
});
```
Copy out whatever you need before returning or handing work off asynchronously — every accessor
that returns a `String` (`header`, `param`, `query`, `path`, …) gives you an independent heap copy
that's safe to keep as long as you like:
```java
app.get("/slow", (req, res) -> {
String traceId = req.header("X-Trace-Id"); // copy now, safe to retain
CompletableFuture.runAsync(() -> log(traceId));
return "ok";
});
```
Run with `-Dflash.env=dev` and a use-after-return access throws `IllegalStateException` immediately
at the offending call site instead of silently reading the wrong request's data — turn this on in
tests and local development. It's a no-op in production beyond a single `boolean` field read.
`req.body()`/`RequestBody` follows the same rule — materialise (`.bytes()`) or fully consume
(`.stream()`) it inside the handler; don't stash the `RequestBody` itself for later.
### Reusable response headers
Use `PreEncodedHeader` for a constant header sent by many responses. It stores the name and value
once and remains valid on both HTTP versions:
```java
private static final PreEncodedHeader NO_STORE =
new PreEncodedHeader("cache-control", "no-store");
app.get("/health", (req, res) -> res.header(NO_STORE).body("ok"));
```
`Response.header(byte[])` accepts a complete CRLF-terminated HTTP/1 field line and is therefore
HTTP/1-only; HPACK needs the name and value as separate fields. Prefer `PreEncodedHeader` for shared
application and middleware code.
### Trailers and push streaming
Request trailers become available after the body reaches EOF:
```java
byte[] payload = req.body().bytes();
String status = req.trailers().first("grpc-status");
```
For a producer-driven response, `Response.streaming` provides a blocking `ResponseStream`. Its
bounded buffer and HTTP/2 flow-control windows apply backpressure directly to the producer's
virtual thread:
```java
return res.streaming(stream -> {
try {
stream.write(payload, 0, payload.length);
stream.trailer("result", "complete");
} catch (IOException failure) {
throw new UncheckedIOException(failure);
}
});
```
The API renders as chunked data and trailers on HTTP/1.1, and DATA plus trailing HEADERS on
HTTP/2. Flash core supplies these transport primitives; a higher-level gRPC codec belongs in a
future `flash-ext-grpc` extension.
## Testing
`flash-testing` boots a real app on an OS-assigned port for the duration of a test, and hands you
a client pointed at it. Add it with test scope:
```xml
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-testing</artifactId>
<version>${flash.version}</version>
<scope>test</scope>
</dependency>
```
```java
class UserRoutesTest {
@RegisterExtension
static FlashTest app = FlashTest.of(new BlogApp())
.mock(UserService.class, new InMemoryUserService());
@Test
void listsUsers() {
app.get("/api/users")
.expectStatus(200)
.expectHeader("content-type", "application/json")
.expectBodyContains("alice");
}
}
```
`FlashTest.of` takes a `FlashApplication` — your app's routes, extensions and services expressed
independently of which port they run on:
```java
public final class BlogApp implements FlashApplication {
@Override public void configure(FlashApp app) {
app.install(new JacksonExtension());
app.mount("/api", scope -> scope.scan("dev.blog.api"));
}
}
FlashApp.create(8080).apply(new BlogApp()).startAndBlock(); // production
```
It is a functional interface, so a lambda works too:
`FlashTest.of(app -> app.get("/ping", (req, res) -> "pong"))`.
### Requests
The HTTP verb sends the request; `expect*` assertions chain and report the real response body on
failure. `get` and `delete` skip the builder when there is nothing to add.
```java
app.get("/api/users").expectStatus(200);
app.request()
.header("Authorization", "Bearer " + token)
.json("{\"name\":\"bob\"}")
.post("/api/users")
.expectStatus(201);
try (FlashWebSocket socket = app.ws("/live")) {
socket.sendText("hello");
assertEquals("echo:hello", socket.awaitText(Duration.ofSeconds(2)));
}
```
### Replacing services
`mock` installs replacements after everything your app and its extensions declare, so a fake always
wins. Any object will do — `flash-testing` depends on no mocking library, so a hand-written fake and
a Mockito mock are equally welcome.
### More than one server
`FlashTest` is an ordinary object in a field, so a test class can hold as many as it needs and wire
one from another in plain Java. Startup is lazy — reading `baseUri()` boots that server on the spot
— so declaration order does the wiring:
```java
@RegisterExtension static FlashTest auth = FlashTest.of(new FakeOidcApp());
@RegisterExtension static FlashTest api = FlashTest.of(new BlogApp(auth.baseUri()));
```
### Scope
A `static` field boots once for the test class; a non-static field boots a fresh app for every test.
That is stock JUnit field semantics — the isolation switch is the keyword, not an option.
### Configuration
Full reference: [`flash-testing/docs`](flash-testing/docs/README.md), including the
[limits](flash-testing/docs/limits.md) the harness deliberately does not cross.
`profile` customises the `FlashConfiguration` — timeouts, HTTP/2 switches, buffer sizes. Host, port
and the shutdown drain window are stamped afterwards, so a profile cannot break the harness;
`listener(...)` and `tls(...)` are rejected because the harness owns the loopback listener it gives
you a client for.
```java
FlashTest.of(new BlogApp()).profile(cfg -> cfg.http2CleartextEnabled(true));
```
## Architecture
```
ServerSocket.accept()
→ RequestParser.parse() # zero-alloc header parsing, buffer reuse across keep-alive
→ GlobalRouter.route() # two-tier: mounted sub-routers (longest prefix) then FastPathRouterImpl
→ RequestHandler.handle() # user handler; return value sets body
→ Request.drain() # consume unread body for keep-alive
→ HttpServer writes response # status line, headers, then fixed or chunked body
→ loop or close socket # based on Connection header
TransportFactory.create() # binds every listener, wires the connection runner
→ AcceptLoop # one per listener × accept thread; hands sockets off
→ ConnectionRunner.accept() # per-connection setup: TLS handshake, protocol negotiation
→ ProtocolNegotiator # ALPN / h2c-preface — decides the protocol once
├─ Http1Connection.run() # request parser, router, handler, h1 response writer
└─ Http2Connection.run() # frame demux, HPACK, stream dispatch, flow control
→ RequestHandler.handle() # the same protocol-neutral request/response API
```
- **Virtual threads** — each accepted socket runs on a virtual thread (`Executors.newVirtualThreadPerTaskExecutor()`). Java 21 required.
- **Virtual threads** — each accepted socket runs on a virtual thread (`Executors.newVirtualThreadPerTaskExecutor()`, owned by `TransportFactory`). Java 21 required.
- **Zero-allocation router** — `FastPathRouterImpl` uses `fpr-core`, a byte-level FSM that matches on `METHOD + path` bytes with no per-request allocation.
- **Keep-alive** — `RequestParser` reuses its header buffer across requests on the same connection.
- **Chunked transfer** — both chunked request bodies (decoded via `ChunkedInputStream`) and chunked response bodies are supported.
- **TLS is transport-only** — see [TLS](#tls). Listeners bind either a plain `ServerSocket` or an `SSLServerSocket`; nothing downstream of `accept()` branches on which.
- **`ConnectionProtocol` seam** — HTTP/1.1 and HTTP/2 are peers behind this interface, selected once per connection by `ProtocolNegotiator`; routing and application models are shared.
## Build & test
@@ -193,7 +545,4 @@ mvn test
# Run a single test class
mvn test -pl flash -Dtest=RequestParserTest
# Run the benchmark demo server
java -jar flash-bench/target/flash-bench-1.0-SNAPSHOT.jar
```
benchmarks/websocket/benchmark.yml
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config:
target: "ws://localhost:8080/echo"
engines:
ws: {}
phases:
- duration: 30
arrivalRate: 50
rampTo: 500
name: "Riscaldamento progressivo"
- duration: 120
arrivalRate: 1000 # 1000 nuovi utenti al secondo
name: "Carico Estremo"
ensure:
maxErrorRate: 5
p99: 150
scenarios:
- name: "Saturazione Totale"
engine: ws
flow:
- loop:
- send: "Benchmark data"
# Rimosso il 'think' per eliminare il limite artificiale di 10msg/s per utente
count: 100 # Ogni utente spara a raffica 100 messaggi senza pause
flash-extensions/flash-ext-cache-caffeine/docs/README.md
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# flash-ext-cache-caffeine
In-process caching backed by [Caffeine](https://github.com/ben-manes/caffeine). Implements
[`flash-ext-cache-core`](../../flash-ext-cache-core/docs/README.md).
## Dependency
```xml
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-ext-cache-caffeine</artifactId>
<version>${flash.version}</version>
</dependency>
```
## Quick start
```java
FlashApp.create(8080)
.install(new CaffeineCacheExtension())
.scan("dev.example.api");
```
```java
@GET("/api/users/{id}")
public final class GetUser extends RequestHandler {
private Cache<String, User> users;
private UserRepository repo;
@Override protected void onInit() {
repo = require(UserRepository.class);
users = require(CacheManager.class).build("users", spec -> spec
.maxSize(10_000)
.ttl(Duration.ofMinutes(10)));
}
@Override public Object handle(Request req, Response res) {
return users.get(req.param("id"), repo::findById);
}
}
```
The extension takes no configuration. Each cache declares its own size and TTL where it is built.
## Why Caffeine and not a `LinkedHashMap`
An LRU on top of `LinkedHashMap` is about sixty lines, and for a cache that is genuinely
low-traffic it is the right answer — `ConcurrentHashMap::computeIfAbsent` is one line and has no
hit rate to get wrong.
This module exists for the case where that stops being true. Caffeine's W-TinyLFU admission,
striped frequency counters and amortised eviction are not a weekend's work to reproduce, and the
failure mode of getting them wrong is a cache that is *slower* than no cache — lock contention on
every lookup, or an eviction policy that throws away exactly the entries you were about to want.
## Lifecycle
Caches are released through `FlashContext.onClose`, so `app.stop()` drops every entry. That is
invisible in production with one app per process and matters immediately under test, where many
apps start and stop in one JVM.
## Statistics
```java
CacheStats stats = users.stats();
stats.hitRate(); // 0.0 until something is looked up
```
Requires `recordStats()` on the spec. Without it you get `CacheStats.DISABLED`, which is honest
about being unmeasured rather than reporting zeroes that look like a cold cache.
`manager.names()` lists every cache built so far, for an ops endpoint.
## What this is not
**HTTP caching.** If what you want is for the *client* to stop asking — `Cache-Control`, `ETag`,
`304 Not Modified` — that is a middleware, not an object cache, and it saves the whole request
rather than the lookup inside it. Reach for that first: it is cheaper, and the two solve different
problems.
**A shared cache.** Every replica has its own. Two instances will hold different values for the
same key, and an invalidation on one does not reach the other. When that becomes a problem the
answer is a networked backend — see the note on `flash-ext-cache-redis` — and the semantics change
with it: a cache that can fail is no longer transparent.
flash-extensions/flash-ext-cache-caffeine/pom.xml
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@@ -0,0 +1,39 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-cache-caffeine</artifactId>
<dependencies>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-ext-cache-core</artifactId>
</dependency>
<!--
Caffeine rather than a hand-rolled LRU: W-TinyLFU admission, striped counters and
amortised eviction are not a weekend's work to get right, and getting them wrong is a
cache that is slower than no cache.
-->
<dependency>
<groupId>com.github.ben-manes.caffeine</groupId>
<artifactId>caffeine</artifactId>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
</dependency>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-testing</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
flash-extensions/flash-ext-cache-caffeine/src/main/java/dev/relism/flash/ext/cache/caffeine/CaffeineCache.java
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@@ -0,0 +1,41 @@
package dev.relism.flash.ext.cache.caffeine;
import dev.relism.flash.ext.cache.Cache;
import dev.relism.flash.ext.cache.CacheStats;
import java.util.function.Function;
/**
* {@link Cache} over a Caffeine cache. A thin adapter by design: every method delegates directly,
* adding no wrapper object, no copy and no synchronisation of its own.
*/
final class CaffeineCache<K, V> implements Cache<K, V> {
private final com.github.benmanes.caffeine.cache.Cache<K, V> delegate;
private final boolean statsRecorded;
CaffeineCache(com.github.benmanes.caffeine.cache.Cache<K, V> delegate, boolean statsRecorded) {
this.delegate = delegate;
this.statsRecorded = statsRecorded;
}
@Override
public V get(K key, Function<? super K, ? extends V> loader) {
// Caffeine's own get(key, mappingFunction) already guarantees the loader runs once per key
// across concurrent callers; wrapping it in anything of ours would only add a race.
return delegate.get(key, loader);
}
@Override public V getIfPresent(K key) { return delegate.getIfPresent(key); }
@Override public void put(K key, V value) { delegate.put(key, value); }
@Override public void invalidate(K key) { delegate.invalidate(key); }
@Override public void invalidateAll() { delegate.invalidateAll(); }
@Override public long estimatedSize() { return delegate.estimatedSize(); }
@Override
public CacheStats stats() {
if (!statsRecorded) return CacheStats.DISABLED;
com.github.benmanes.caffeine.cache.stats.CacheStats snapshot = delegate.stats();
return new CacheStats(snapshot.hitCount(), snapshot.missCount(), snapshot.evictionCount());
}
}
flash-extensions/flash-ext-cache-caffeine/src/main/java/dev/relism/flash/ext/cache/caffeine/CaffeineCacheExtension.java
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package dev.relism.flash.ext.cache.caffeine;
import dev.relism.flash.ext.cache.CacheManager;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.extension.FlashExtension;
import dev.relism.flash.extension.FlashRegistrar;
/**
* Installs an in-process {@link CacheManager} backed by Caffeine.
*
* <pre>{@code
* FlashApp.create(8080)
* .install(new CaffeineCacheExtension())
* .scan("dev.example.api");
* }</pre>
*
* <p>No configuration. Each cache declares its own size and TTL where it is built, because those
* are properties of what is being cached, not of the process caching it.
*
* <p>Caches are dropped through {@link FlashContext#onClose}, so a stopped app does not keep its
* values alive — which matters when many apps start and stop in one JVM, as they do under test.
*/
public final class CaffeineCacheExtension implements FlashExtension {
@Override
public void configure(FlashRegistrar<?> app, FlashContext ctx) {
ctx.supply(CacheManager.class, services -> {
CaffeineCacheManager manager = new CaffeineCacheManager();
services.onClose(manager::clear);
return manager;
});
}
}
flash-extensions/flash-ext-cache-caffeine/src/main/java/dev/relism/flash/ext/cache/caffeine/CaffeineCacheManager.java
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@@ -0,0 +1,66 @@
package dev.relism.flash.ext.cache.caffeine;
import com.github.benmanes.caffeine.cache.Caffeine;
import dev.relism.flash.ext.cache.Cache;
import dev.relism.flash.ext.cache.CacheManager;
import dev.relism.flash.ext.cache.CacheSpec;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
/** In-process {@link CacheManager} backed by Caffeine. */
final class CaffeineCacheManager implements CacheManager {
private final Map<String, Entry> caches = new ConcurrentHashMap<>();
@Override
@SuppressWarnings("unchecked")
public <K, V> Cache<K, V> build(String name, java.util.function.Consumer<CacheSpec> configure) {
CacheSpec spec = CacheSpec.of();
configure.accept(spec);
Entry entry = caches.computeIfAbsent(name, key -> new Entry(describe(spec), create(spec)));
// Two handlers sharing a cache is the point; two handlers disagreeing about its size or
// TTL is a bug that would otherwise resolve to whichever one ran first.
String requested = describe(spec);
if (!entry.signature.equals(requested))
throw new IllegalStateException("Cache '" + name + "' already exists as " + entry.signature
+ " but was requested as " + requested);
return (Cache<K, V>) entry.cache;
}
@Override
@SuppressWarnings("unchecked")
public <K, V> Cache<K, V> cache(String name) {
Entry entry = caches.get(name);
return entry == null ? null : (Cache<K, V>) entry.cache;
}
@Override
public Set<String> names() {
return Set.copyOf(caches.keySet());
}
/** Releases every entry so a stopped app does not keep its values alive. */
void clear() {
caches.values().forEach(entry -> entry.cache.invalidateAll());
caches.clear();
}
private static CaffeineCache<Object, Object> create(CacheSpec spec) {
Caffeine<Object, Object> builder = Caffeine.newBuilder();
if (spec.bounded()) builder.maximumSize(spec.maxSize());
if (spec.ttl() != null) builder.expireAfterWrite(spec.ttl());
if (spec.ttlAfterAccess() != null) builder.expireAfterAccess(spec.ttlAfterAccess());
if (spec.statsRecorded()) builder.recordStats();
return new CaffeineCache<>(builder.build(), spec.statsRecorded());
}
private static String describe(CacheSpec spec) {
return "maxSize=" + spec.maxSize() + " ttl=" + spec.ttl()
+ " ttlAfterAccess=" + spec.ttlAfterAccess() + " stats=" + spec.statsRecorded();
}
private record Entry(String signature, CaffeineCache<Object, Object> cache) {}
}
flash-extensions/flash-ext-cache-caffeine/src/test/java/dev/relism/flash/ext/cache/caffeine/CaffeineCacheTest.java
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@@ -0,0 +1,160 @@
package dev.relism.flash.ext.cache.caffeine;
import dev.relism.flash.ext.cache.Cache;
import dev.relism.flash.ext.cache.CacheManager;
import dev.relism.flash.ext.cache.CacheStats;
import dev.relism.flash.extension.FlashApp;
import dev.relism.flash.extension.FlashConfiguration;
import dev.relism.flash.testing.FlashTest;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.RegisterExtension;
import java.time.Duration;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicInteger;
import static org.junit.jupiter.api.Assertions.*;
class CaffeineCacheTest {
private static final AtomicInteger loads = new AtomicInteger();
@RegisterExtension
static FlashTest app = FlashTest.of(configured -> {
configured.install(new CaffeineCacheExtension());
configured.ctx().onReady(() -> {
Cache<String, String> users = configured.ctx().require(CacheManager.class)
.build("users", spec -> spec.maxSize(100).ttl(Duration.ofMinutes(5)).recordStats());
configured.get("/users/{id}", (req, res) ->
users.get(req.param("id"), id -> "loaded:" + id + ":" + loads.incrementAndGet()));
});
});
private static CacheManager manager() {
return app.app().ctx().require(CacheManager.class);
}
@Test
void aRepeatedRequestIsServedFromCache() {
String first = app.get("/users/alice").expectStatus(200).body();
String second = app.get("/users/alice").expectStatus(200).body();
assertEquals(first, second);
assertTrue(first.startsWith("loaded:alice:"));
}
@Test
void distinctKeysLoadSeparately() {
assertNotEquals(app.get("/users/bob").body(), app.get("/users/carol").body());
}
@Test
void statsCountHitsAndMisses() {
Cache<String, String> cache = manager().build("stats-probe", spec -> spec.maxSize(10).recordStats());
cache.get("k", key -> "v");
cache.get("k", key -> "v");
CacheStats stats = cache.stats();
assertEquals(1, stats.misses());
assertEquals(1, stats.hits());
assertEquals(0.5, stats.hitRate());
}
@Test
void statsAreDisabledUnlessAskedFor() {
Cache<String, String> cache = manager().build("no-stats", spec -> spec.maxSize(10));
cache.get("k", key -> "v");
assertEquals(CacheStats.DISABLED, cache.stats());
}
@Test
void theLoaderRunsOncePerKeyUnderConcurrency() throws Exception {
Cache<String, String> cache = manager().build("single-flight", spec -> spec.maxSize(10));
AtomicInteger invocations = new AtomicInteger();
int threads = 16;
CountDownLatch start = new CountDownLatch(1);
CountDownLatch done = new CountDownLatch(threads);
for (int i = 0; i < threads; i++) {
Thread.ofVirtual().start(() -> {
try {
start.await();
cache.get("hot", key -> {
invocations.incrementAndGet();
return "value";
});
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
} finally {
done.countDown();
}
});
}
start.countDown();
assertTrue(done.await(5, java.util.concurrent.TimeUnit.SECONDS));
assertEquals(1, invocations.get(), "concurrent callers must share one load, not race");
}
@Test
void aNullLoaderResultStoresNothing() {
Cache<String, String> cache = manager().build("nulls", spec -> spec.maxSize(10));
assertNull(cache.get("missing", key -> null));
assertNull(cache.getIfPresent("missing"));
}
@Test
void invalidateDropsOneKeyAndInvalidateAllDropsEverything() {
Cache<String, String> cache = manager().build("invalidation", spec -> spec.maxSize(10));
cache.put("a", "1");
cache.put("b", "2");
cache.invalidate("a");
assertNull(cache.getIfPresent("a"));
assertEquals("2", cache.getIfPresent("b"));
cache.invalidateAll();
assertNull(cache.getIfPresent("b"));
}
@Test
void buildIsIdempotentPerName() {
Cache<String, String> first = manager().build("shared", spec -> spec.maxSize(10));
Cache<String, String> second = manager().build("shared", spec -> spec.maxSize(10));
assertSame(first, second, "two handlers asking for one cache must get one cache");
assertSame(first, manager().cache("shared"));
}
@Test
void disagreeingOnASharedCacheIsARejectedMistakeNotASilentWinner() {
manager().build("contested", spec -> spec.maxSize(10));
IllegalStateException conflict = assertThrows(IllegalStateException.class,
() -> manager().build("contested", spec -> spec.maxSize(999)));
assertTrue(conflict.getMessage().contains("contested"), conflict.getMessage());
}
@Test
void unknownNameReturnsNullRatherThanBuildingOne() {
assertNull(manager().cache("never-built"));
}
/** Why CaffeineCacheExtension registers onClose: values must not outlive the app holding them. */
@Test
void stoppingTheAppReleasesEveryCache() {
FlashApp standalone = FlashApp.create(FlashConfiguration.builder()
.port(0).host("127.0.0.1").shutdownDrainTimeoutMs(250).build())
.install(new CaffeineCacheExtension());
standalone.start();
CacheManager manager = standalone.ctx().require(CacheManager.class);
manager.build("scoped", spec -> spec.maxSize(10)).put("k", "v");
assertEquals(1, manager.names().size());
standalone.stop().join();
assertTrue(manager.names().isEmpty(), "caches must be released when the app stops");
}
}
flash-extensions/flash-ext-cache-core/docs/README.md
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# flash-ext-cache-core
The caching contract, shared across backends. Like `flash-ext-data-core`, this module talks to
nothing: it defines the abstractions and a backend implements them.
## Components
- `Cache<K, V>` — a named cache. `get(key, loader)` is the method that matters.
- `CacheManager` — creates and hands back named caches.
- `CacheSpec` — size and expiry for one cache.
- `CacheStats` — hit/miss/eviction counters.
Install a backend, not this module: [`flash-ext-cache-caffeine`](../../flash-ext-cache-caffeine/docs/README.md)
for in-process caching.
## The one shape that matters
```java
User user = users.get(id, repo::findById);
```
Compute-if-absent is the only cache operation most code needs, and the only one that is hard to
get right — the loader runs **once per key** across concurrent callers, and the rest wait rather
than each computing their own. `getIfPresent`, `put`, `invalidate` and `invalidateAll` exist for
what it cannot express.
A loader returning `null` stores nothing and returns `null`. Caching absence is a decision, not a
default; wrap it in an `Optional` or a sentinel if you want it.
## Naming and sharing
`CacheManager.build(name, spec)` is idempotent per name: two handlers asking for `"users"` get one
cache, not two, so nobody has to coordinate who creates it first.
If they disagree about the spec, that throws. The alternative is a cache whose size depends on
which handler happened to initialise first, which is the kind of bug that only shows up under
load.
## Specs
```java
CacheSpec.of()
.maxSize(10_000)
.ttl(Duration.ofMinutes(10))
.recordStats();
```
Every field is optional, but a spec that sets neither `maxSize` nor `ttl` is an unbounded cache
that never expires — a memory leak wearing a hat. Set at least one.
`recordStats()` is off by default: counting costs a pair of atomic increments on every lookup, and
a cache nobody is measuring should not pay for numbers nobody reads. Without it, `stats()` returns
`CacheStats.DISABLED` rather than silently zero.
## Where the spec lives
On the cache, at the point it is built — not in application config. Size and TTL are properties of
*what is being cached*, not of the process doing the caching, and a TTL in a config file is a TTL
nobody can relate back to the data it governs.
## Writing a backend
Implement `CacheManager` and `Cache`, provide the manager from a `FlashExtension`, and register
cleanup with `FlashContext.onClose` so a stopped app does not keep its values alive.
flash-extensions/flash-ext-cache-core/pom.xml
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@@ -0,0 +1,25 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-cache-core</artifactId>
<dependencies>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash</artifactId>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
</dependency>
</dependencies>
</project>
flash-extensions/flash-ext-cache-core/src/main/java/dev/relism/flash/ext/cache/Cache.java
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@@ -0,0 +1,50 @@
package dev.relism.flash.ext.cache;
import java.util.function.Function;
/**
* A named cache. Obtained from a {@link CacheManager}, safe to hold in a handler field and share
* across threads.
*
* <pre>{@code
* User user = users.get(id, repo::findById);
* }</pre>
*
* <p>{@link #get} is the only method most code needs. The rest exist for the cases it cannot
* express: reading without populating, writing a value computed elsewhere, and invalidating.
*
* @param <K> key type — must have a stable {@code hashCode}/{@code equals}
* @param <V> value type
*/
public interface Cache<K, V> {
/**
* Returns the cached value, computing and storing it with {@code loader} if absent.
*
* <p>The loader runs at most once per key across concurrent callers; the others wait for it
* rather than each computing their own. A loader returning {@code null} stores nothing and
* {@code null} is returned.
*/
V get(K key, Function<? super K, ? extends V> loader);
/** The cached value, or {@code null} if absent. Never invokes a loader. */
V getIfPresent(K key);
/** Stores {@code value}, replacing any existing entry. */
void put(K key, V value);
/** Drops {@code key}. Does nothing if it was absent. */
void invalidate(K key);
/** Drops every entry. */
void invalidateAll();
/** Approximate entry count. Approximate because eviction is asynchronous in most backends. */
long estimatedSize();
/**
* Hit/miss counters since this cache was built, or {@link CacheStats#DISABLED} when the
* backend was not asked to record them.
*/
CacheStats stats();
}
flash-extensions/flash-ext-cache-core/src/main/java/dev/relism/flash/ext/cache/CacheManager.java
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package dev.relism.flash.ext.cache;
import java.util.function.Consumer;
/**
* Creates and hands back named caches. Resolve it with {@code require(CacheManager.class)}; a
* backend extension such as {@code flash-ext-cache-caffeine} provides the implementation.
*
* <pre>{@code
* @Override protected void onInit() {
* users = require(CacheManager.class).build("users", spec -> spec
* .maxSize(10_000)
* .ttl(Duration.ofMinutes(10)));
* }
* }</pre>
*
* <p>{@link #build} is idempotent per name: calling it twice returns the same cache rather than
* two, so several handlers can share one without coordinating who creates it. The spec of the
* first call wins; a later call with a different spec is a configuration mistake and throws.
*/
public interface CacheManager {
/** Creates the named cache, or returns the existing one. */
<K, V> Cache<K, V> build(String name, Consumer<CacheSpec> spec);
/** The named cache, or {@code null} if {@link #build} has not been called for it. */
<K, V> Cache<K, V> cache(String name);
/** Every cache name built so far, for an ops endpoint. */
java.util.Set<String> names();
}
flash-extensions/flash-ext-cache-core/src/main/java/dev/relism/flash/ext/cache/CacheSpec.java
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package dev.relism.flash.ext.cache;
import java.time.Duration;
/**
* How one cache should behave. Every field is optional — a spec that sets nothing gives an
* unbounded cache that never expires, which is a memory leak wearing a hat, so set at least one
* of {@link #maxSize} or {@link #ttl}.
*
* <pre>{@code
* CacheSpec.of().maxSize(10_000).ttl(Duration.ofMinutes(10))
* }</pre>
*
* <p>Mutable builder rather than a record with {@code withX} copies: it is constructed once at
* boot inside a lambda and never shared.
*/
public final class CacheSpec {
private long maxSize = -1;
private Duration ttl;
private Duration ttlAfterAccess;
private boolean recordStats;
private CacheSpec() {}
public static CacheSpec of() {
return new CacheSpec();
}
/** Maximum entries before the backend starts evicting. Negative means unbounded. */
public CacheSpec maxSize(long maxSize) {
this.maxSize = maxSize;
return this;
}
/** Entries expire this long after they were written. */
public CacheSpec ttl(Duration ttl) {
this.ttl = ttl;
return this;
}
/** Entries expire this long after they were last read or written. */
public CacheSpec ttlAfterAccess(Duration ttlAfterAccess) {
this.ttlAfterAccess = ttlAfterAccess;
return this;
}
/**
* Records hit/miss counters for {@link Cache#stats()}.
*
* <p>Off by default: counting costs a pair of atomic increments on every lookup, and a cache
* nobody is measuring should not pay for numbers nobody reads.
*/
public CacheSpec recordStats() {
this.recordStats = true;
return this;
}
public long maxSize() { return maxSize; }
public Duration ttl() { return ttl; }
public Duration ttlAfterAccess() { return ttlAfterAccess; }
public boolean statsRecorded() { return recordStats; }
public boolean bounded() { return maxSize >= 0; }
}
flash-extensions/flash-ext-cache-core/src/main/java/dev/relism/flash/ext/cache/CacheStats.java
Vendored
+20
View File
@@ -0,0 +1,20 @@
package dev.relism.flash.ext.cache;
/**
* Hit/miss counters for one cache.
*
* @param hits lookups that found a value
* @param misses lookups that had to load
* @param evictions entries dropped to respect {@link CacheSpec#maxSize()}
*/
public record CacheStats(long hits, long misses, long evictions) {
/** Returned when {@link CacheSpec#recordStats()} was not set — all zero, and says so. */
public static final CacheStats DISABLED = new CacheStats(0, 0, 0);
/** Hits divided by lookups, or 0 when nothing has been looked up yet. */
public double hitRate() {
long total = hits + misses;
return total == 0 ? 0 : (double) hits / total;
}
}
flash-extensions/flash-ext-cache-redis/docs/README.md
+39
View File
@@ -0,0 +1,39 @@
# flash-ext-cache-redis — planned
Not implemented. This directory holds the design so the decision is written down rather than
rediscovered; there is deliberately **no module, no pom and no source**, because an empty module
that builds an empty jar is dead weight in the reactor and in everyone's dependency tree.
Add it when there is a second replica that actually needs shared state.
## What it would implement
`CacheManager` and `Cache` from [`flash-ext-cache-core`](../../flash-ext-cache-core/docs/README.md),
so switching backend is an install-line change:
```java
.install(new RedisCacheExtension(RedisConfig.of("redis://localhost:6379")))
```
## The part that is not a drop-in
`flash-ext-cache-caffeine` cannot fail. A networked cache can, and that changes the contract in
ways an adapter cannot hide:
- **`get(key, loader)` can fail before reaching the loader.** The honest default is to fall
through to the loader and serve the value uncached, so Redis being down degrades throughput
rather than taking the application with it. That has to be a decision, not an accident.
- **Values must be serialized.** Caffeine stores references. A `byte[]` codec belongs in the spec,
and the natural default is whatever `flash-ext-jackson` is already configured with.
- **`invalidateAll()` is not free.** Against a shared keyspace it is either a scan or a key
prefix per cache name. The prefix is the right answer, and it means cache names become part of
the wire contract.
- **Stats are per-client, not per-cache.** Hit rate stays meaningful; eviction count does not,
because Redis evicts on its own policy.
## Why it is not built yet
Nothing in the codebase has two replicas sharing cache state. Building it now would mean choosing
a client library, a serialization format and a failure policy with no real usage to check them
against — and the failure policy in particular is the kind of decision that is wrong until a
production incident tells you otherwise.
flash-extensions/flash-ext-data-core/docs/README.md
+127
View File
@@ -0,0 +1,127 @@
# flash-ext-data-core
Shared core for Flash's data layer.
## Purpose
This module defines the transactional contract shared across backend implementations. It does not
talk to Hibernate or JDBC directly: it exposes abstractions and a minimal runtime, nothing else.
## Components
- `TxDefinition`: immutable transaction metadata.
- `TxStatus`: runtime state returned by the manager.
- `TxManager`: the `begin`/`commit`/`rollback` contract.
- `Tx`: runtime orchestration and the per-thread transaction stack.
- `ResourceRegistry`: thread-local storage for resources and synchronizations.
- `Repository<T, ID>`: self-transactional base repository.
- `Spec<T>`: composable predicate.
- `Query<T>`: query object carrying spec, sort and paging.
- `SpecBuilder<T>`: fluent DSL for building typed specs.
- `RepositorySupport<T, ID>`: shared internal helper.
- `TransactionPropagation`: propagation semantics.
- `TransactionIsolation`: isolation level.
- `TxSynchronization`: lifecycle hooks (see below).
## Execution model
The flow is:
1. `Tx.call(definition, work)` calls `TxManager.begin(definition)`.
2. The `TxManager` creates a backend-specific `TxStatus`.
3. The status is pushed onto the thread-local stack.
4. The work uses `Tx.resource(Class)` to obtain the current resource.
5. When the work ends, `Tx` chooses between `commit` and `rollback`.
6. The stack is popped, and the thread-local is cleared once it is empty.
## Supported propagation
- `REQUIRED`: use the active transaction, or open a new one.
- `REQUIRES_NEW`: suspend the current transaction and open a new one.
- `SUPPORTS`: join the active transaction if there is one, otherwise run without a transaction.
- `NOT_SUPPORTED`: suspend the current transaction and run without one.
- `MANDATORY`: require an active transaction.
## Synchronizations (`TxSynchronization`)
Lifecycle hooks for **one** transaction, registered through `Data.afterCommit(...)` (or directly
with `ResourceRegistry.addSynchronization(...)`).
Every callback belongs to exactly the innermost transaction active at registration time, and fires
exactly once, when *that* transaction completes:
- a **joined** inner transaction (`REQUIRED`) is not a transaction of its own, so callbacks
registered inside one wait for the outermost commit;
- a `REQUIRES_NEW` transaction is, so completing it fires only its own callbacks and leaves the
suspended outer transaction's pending.
### Which side of the commit each hook sits on
| hook | when | resource |
| --- | --- | --- |
| `beforeCommit(readOnly)` | immediately **before** the real commit | session/connection still **bound**, transaction still active |
| `afterCommit()` / `afterRollback()` | after completion | resource already **unbound** |
| `afterCompletion(outcome)` | after the two above | resource already unbound |
`beforeCommit` is the only hook that can still write through the same resource and have the write
land in the same atomic unit: flush a buffer, stamp an audit row, materialize a derived value. It
is skipped when the transaction is already `rollback-only`, since there is no commit to precede.
Post-completion callbacks run with the resource unbound instead: one that opens its own transaction
gets a **fresh** one rather than joining the transaction that just finished. That is what makes
them the right place to refresh a cache, enqueue a message, or notify anything outside the
database.
### Failure
Throwing from `beforeCommit` **vetoes the commit**: the transaction is rolled back,
`afterRollback`/`afterCompletion(ROLLED_BACK)` fire, and the exception reaches the caller. That is
the reason the hook runs before the commit rather than after — it can still refuse.
The post-completion hooks have no such power: the transaction is already over by the time they run,
so an exception propagates but changes nothing already committed, and stops the callbacks queued
behind it.
## Using `Repository`
`Repository` is the shared base for concrete repositories. Every public operation internally uses a
`REQUIRED` transaction, read-only where applicable.
Subclasses implement the `doXxx(...)` methods:
- `doFind(Query<T>)`
- `doFindOne(Spec<T>)`
- `doFindPage(Query<T>)`
- `doDeleteAll(Spec<T>)`
- `doUpdateAll(Spec<T>, T)`
The old `findAll(...)` and `findPage(...)` overloads were reduced to a combination of `Query<T>` and
`Spec<T>`.
```java
public abstract class Repository<T, ID> {
protected Repository(Tx tx) { ... }
protected final <R> R tx(Tx.TxCallable<R> work) { ... }
}
```
## Composing with Flash
`DataExtension` registers:
- `Tx` in the `FlashContext`
- `TxManager` in the `FlashContext`
- an annotation processor for `@Transactional`
- `TxManager.close()` as an `onClose` callback, so stopping the app releases the manager's
session factory and connection pool; give the manager a pool you want closed with the app
This makes the data layer composable with Flash's extension system without global state.
## Implementation notes
- The transaction stack is thread-local and is cleared once it becomes empty.
- Backend resources are suspended and restored for `REQUIRES_NEW` and `NOT_SUPPORTED`.
- `TxSynchronization` is the hook point for commit/rollback/completion callbacks.
- Synchronizations live in a thread-local list; every new transaction records how many were already
registered when it opened and fires only its own tail, so a `REQUIRES_NEW` does not drag along
the suspended transaction's callbacks.
flash-extensions/flash-ext-data-core/pom.xml
+1 -1
View File
@@ -7,7 +7,7 @@
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.0.0</version>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-data-core</artifactId>
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/DataExtension.java
+21 -12
View File
@@ -1,13 +1,15 @@
package dev.relism.flash.ext.data;
import dev.relism.flash.ext.data.core.Tx;
import dev.relism.flash.ext.data.core.Data;
import dev.relism.flash.ext.data.core.TxDefinition;
import dev.relism.flash.ext.data.core.TxManager;
import dev.relism.flash.ext.data.core.TransactionPropagation;
import dev.relism.flash.extension.ExtensionPhase;
import dev.relism.flash.extension.FlashRegistrar;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.extension.FlashExtension;
import dev.relism.flash.extension.FlashRegistrar;
import dev.relism.flash.routing.MiddlewareKey;
import dev.relism.flash.routing.MiddlewareNode;
import dev.relism.flash.routing.Middleware;
import jakarta.transaction.Transactional;
@@ -15,16 +17,27 @@ import java.util.List;
import java.util.Objects;
public final class DataExtension implements FlashExtension {
private static final MiddlewareKey TRANSACTION = MiddlewareKey.of("flash.data.transaction");
private final TxManager txManager;
private final Tx tx;
private final Data data;
public DataExtension(TxManager txManager) {
this(txManager, null);
}
public DataExtension(TxManager txManager, Data data) {
this.txManager = Objects.requireNonNull(txManager);
this.data = data;
this.tx = data != null ? data.tx() : new Tx(txManager);
}
@Override
public void provide(FlashContext ctx) {
Tx.init(txManager);
public void configure(FlashRegistrar<?> app, FlashContext ctx) {
ctx.onClose(txManager::close);
ctx.provide(Tx.class, tx);
ctx.provide(TxManager.class, txManager);
if (data != null) ctx.provide(Data.class, data);
ctx.addAnnotationProcessor(handlerClass -> {
Transactional ann = handlerClass.getAnnotation(Transactional.class);
if (ann == null) {
@@ -33,21 +46,17 @@ public final class DataExtension implements FlashExtension {
TxDefinition definition = TxDefinition.DEFAULTS
.withPropagation(mapTxType(ann.value()));
Middleware middleware = next -> (req, res) -> {
return Tx.call(definition, () -> next.handle(req, res));
return tx.call(definition, () -> next.handle(req, res));
};
return List.of(middleware);
return List.of(MiddlewareNode.of(TRANSACTION, middleware));
});
}
@Override
public int priority() {
return ExtensionPhase.EARLY.value;
}
private TransactionPropagation mapTxType(Transactional.TxType txType) {
return switch (txType) {
case REQUIRED, SUPPORTS -> TransactionPropagation.REQUIRED;
case REQUIRED -> TransactionPropagation.REQUIRED;
case REQUIRES_NEW -> TransactionPropagation.REQUIRES_NEW;
case SUPPORTS -> TransactionPropagation.SUPPORTS;
case MANDATORY -> TransactionPropagation.MANDATORY;
case NOT_SUPPORTED, NEVER -> TransactionPropagation.NOT_SUPPORTED;
};
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Data.java
+46
View File
@@ -0,0 +1,46 @@
package dev.relism.flash.ext.data.core;
import java.util.Objects;
import java.io.Serializable;
import java.util.concurrent.ConcurrentHashMap;
/**
* Application-facing data gateway. Repositories are created once per entity type and are safe to
* share: transaction/session state stays in {@link Tx}, never in the repository instance.
*/
public final class Data {
private final Tx tx;
private final RepositoryFactory repositories;
private final ConcurrentHashMap<Class<?>, Repository<?, ?>> cache = new ConcurrentHashMap<>();
public Data(Tx tx, RepositoryFactory repositories) {
this.tx = Objects.requireNonNull(tx, "tx");
this.repositories = Objects.requireNonNull(repositories, "repositories");
}
public Tx tx() { return tx; }
@SuppressWarnings("unchecked")
public <T, ID extends Serializable> Repository<T, ID> repository(Class<T> type) {
Objects.requireNonNull(type, "type");
return (Repository<T, ID>) cache.computeIfAbsent(type, key -> repositories.create(tx, type));
}
public void read(Tx.TxRunnable work) { tx.run(tx.readOnly(), work); }
public <T> T read(Tx.TxCallable<T> work) { return tx.call(tx.readOnly(), work); }
public void write(Tx.TxRunnable work) { tx.run(work); }
public <T> T write(Tx.TxCallable<T> work) { return tx.call(work); }
/** Transitional low-level access for infrastructure that needs an explicit definition. */
public void run(Tx.TxRunnable work) { tx.run(work); }
public <T> T call(Tx.TxCallable<T> work) { return tx.call(work); }
public <T> T call(TxDefinition definition, Tx.TxCallable<T> work) { return tx.call(definition, work); }
public TxDefinition readOnly() { return tx.readOnly(); }
/** Registers work that runs only after the enclosing write transaction commits. */
public void afterCommit(Runnable work) {
if (!tx.isActive()) throw new IllegalStateException("afterCommit requires an active transaction");
ResourceRegistry.addSynchronization(new TxSynchronization() {
@Override public void afterCommit() { work.run(); }
});
}
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Query.java
+28
View File
@@ -0,0 +1,28 @@
package dev.relism.flash.ext.data.core;
public record Query<T>(Spec<T> spec, Sort sort, Integer page, Integer size) {
public Query {
spec = spec == null ? Spec.all() : spec;
sort = sort == null ? Sort.unsorted() : sort;
}
public static <T> Query<T> all() {
return new Query<>(Spec.all(), Sort.unsorted(), null, null);
}
public Query<T> where(Spec<T> spec) {
return new Query<>(spec, sort, page, size);
}
public Query<T> orderBy(Sort sort) {
return new Query<>(spec, sort, page, size);
}
public Query<T> page(int page, int size) {
return new Query<>(spec, sort, page, size);
}
public boolean isPaged() {
return page != null && size != null;
}
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Repository.java
+100 -91
View File
@@ -4,109 +4,118 @@ import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
/**
* Base repository. Subclasses only extend this — never HibernateRepository
* or JdbcRepository directly. The concrete backing is transparent.
*
* Every method auto-wraps in REQUIRED transaction — safe to call with or
* without an active transaction on the thread.
*/
public abstract class Repository<T, ID> {
public abstract class Repository<T, ID> extends RepositorySupport<T, ID> {
private final TxDefinition required = TxDefinition.DEFAULTS
.withPropagation(TransactionPropagation.REQUIRED);
// ── CRUD ──────────────────────────────────────────────────────────────────
protected Repository(Tx tx) {
super(tx);
}
public Optional<T> findById(ID id) {
return tx(() -> doFindById(id));
}
public List<T> findAll() {
return tx(this::doFindAll);
}
public List<T> findAll(int page, int size) {
return tx(() -> doFindAll(page, size));
}
public List<T> findAll(Sort sort) {
return tx(() -> doFindAll(sort));
}
public List<T> findAll(int page, int size, Sort sort) {
return tx(() -> doFindAll(page, size, sort));
}
public Page<T> findPage(int page, int size) {
return tx(() -> doFindPage(page, size));
}
public Page<T> findPage(int page, int size, Sort sort) {
return tx(() -> doFindPage(page, size, sort));
}
public T save(T entity) {
return tx(() -> doSave(entity));
}
public List<T> saveAll(Iterable<T> entities) {
return tx(() -> {
List<T> saved = new ArrayList<>();
for (T e : entities) saved.add(doSave(e));
return saved;
});
}
public T update(T entity) {
return tx(() -> doUpdate(entity));
}
public void delete(T entity) {
tx(() -> { doDelete(entity); return null; });
}
public void deleteById(ID id) {
tx(() -> { doDeleteById(id); return null; });
}
public void deleteAll(Iterable<T> entities) {
tx(() -> { entities.forEach(this::doDelete); return null; });
return roQuery(() -> doFindById(id));
}
public boolean existsById(ID id) {
return tx(() -> doExistsById(id));
return roQuery(() -> doExistsById(id));
}
public long count() {
return tx(this::doCount);
return roQuery(this::doCount);
}
// ── Auto-wrap helper ──────────────────────────────────────────────────────
/**
* Ensures the work runs inside a transaction.
* If one is already active (caller annotated @Transactional or inside Tx.run)
* it joins it — no new connection opened.
* If none is active it opens one, commits, and closes it transparently.
*/
protected final <R> R tx(Tx.TxCallable<R> work) {
return Tx.call(required, work);
public List<T> findAll() {
return findAll(Query.all());
}
// ── Abstract — implemented by HibernateRepository / JdbcRepository ────────
public List<T> findAll(Spec<T> spec) {
return findAll(Query.<T>all().where(spec));
}
public List<T> findAll(Query<T> query) {
return roQuery(() -> doFind(query));
}
public Page<T> findPage(Query<T> query) {
return roQuery(() -> doFindPage(query));
}
public Optional<T> findOne(Spec<T> spec) {
return roQuery(() -> doFindOne(spec));
}
public T save(T entity) {
return rwQuery(() -> doSave(entity));
}
public T update(T entity) {
return rwQuery(() -> doUpdate(entity));
}
public List<T> saveAll(Iterable<T> entities) {
return rwQuery(() -> doSaveAll(entities));
}
public void delete(T entity) {
rwQuery(() -> {
doDelete(entity);
return null;
});
}
public void deleteById(ID id) {
rwQuery(() -> {
doDeleteById(id);
return null;
});
}
public int deleteAll(Spec<T> spec) {
return rwQuery(() -> doDeleteAll(spec));
}
public int updateAll(Spec<T> spec, T patch) {
return rwQuery(() -> doUpdateAll(spec, patch));
}
public List<T> findAll(int page, int size) {
return findAll(Query.<T>all().page(page, size));
}
public List<T> findAll(Sort sort) {
return findAll(Query.<T>all().orderBy(sort));
}
public List<T> findAll(int page, int size, Sort sort) {
return findAll(Query.<T>all().orderBy(sort).page(page, size));
}
public Page<T> findPage(int page, int size) {
return findPage(Query.<T>all().page(page, size));
}
public Page<T> findPage(int page, int size, Sort sort) {
return findPage(Query.<T>all().orderBy(sort).page(page, size));
}
public void deleteAll(Iterable<T> entities) {
rwQuery(() -> {
for (T entity : entities) {
doDelete(entity);
}
return null;
});
}
protected abstract Optional<T> doFindById(ID id);
protected abstract List<T> doFindAll();
protected abstract List<T> doFindAll(int page, int size);
protected abstract List<T> doFindAll(Sort sort);
protected abstract List<T> doFindAll(int page, int size, Sort sort);
protected abstract Page<T> doFindPage(int page, int size);
protected abstract Page<T> doFindPage(int page, int size, Sort sort);
protected abstract T doSave(T entity);
protected abstract T doUpdate(T entity);
protected abstract void doDelete(T entity);
protected abstract void doDeleteById(ID id);
protected abstract boolean doExistsById(ID id);
protected abstract long doCount();
}
protected abstract List<T> doFind(Query<T> query);
protected abstract Optional<T> doFindOne(Spec<T> spec);
protected abstract Page<T> doFindPage(Query<T> query);
protected abstract boolean doExistsById(ID id);
protected abstract long doCount();
protected abstract T doSave(T entity);
protected abstract List<T> doSaveAll(Iterable<T> entities);
protected abstract T doUpdate(T entity);
protected abstract void doDelete(T entity);
protected abstract void doDeleteById(ID id);
protected abstract int doDeleteAll(Spec<T> spec);
protected abstract int doUpdateAll(Spec<T> spec, T patch);
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/RepositoryFactory.java
+9
View File
@@ -0,0 +1,9 @@
package dev.relism.flash.ext.data.core;
import java.io.Serializable;
/** Creates the backend-specific, stateless repository for one entity type. */
@FunctionalInterface
public interface RepositoryFactory {
<T, ID extends Serializable> Repository<T, ID> create(Tx tx, Class<T> type);
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/RepositorySupport.java
+24
View File
@@ -0,0 +1,24 @@
package dev.relism.flash.ext.data.core;
public abstract class RepositorySupport<T, ID> {
private final Tx tx;
private final TxDefinition rw = TxDefinition.DEFAULTS
.withPropagation(TransactionPropagation.REQUIRED);
private final TxDefinition ro = rw.asReadOnly();
protected RepositorySupport(Tx tx) {
this.tx = tx;
}
protected final Tx tx() {
return tx;
}
protected final <R> R roQuery(Tx.TxCallable<R> work) {
return tx.call(ro, work);
}
protected final <R> R rwQuery(Tx.TxCallable<R> work) {
return tx.call(rw, work);
}
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/ResourceRegistry.java
+51 -3
View File
@@ -31,6 +31,11 @@ public final class ResourceRegistry {
SYNCHRONIZATIONS.get().clear();
}
public static void cleanup() {
RESOURCES.remove();
SYNCHRONIZATIONS.remove();
}
public static <R> R get(TxResourceKey key, Class<R> type) {
Object value = RESOURCES.get().get(key);
if (value == null) {
@@ -48,9 +53,52 @@ public final class ResourceRegistry {
SYNCHRONIZATIONS.get().add(Objects.requireNonNull(sync));
}
public static void fireSynchronizations(TxOutcome outcome) {
List<TxSynchronization> syncs = List.copyOf(SYNCHRONIZATIONS.get());
SYNCHRONIZATIONS.get().clear();
/**
* How many synchronizations are registered right now — captured by a transaction manager when
* it opens a new transaction, and handed back to {@link #fireSynchronizations} on completion
* so that transaction only fires its own. See there for why that matters.
*/
public static int synchronizationCount() {
return SYNCHRONIZATIONS.get().size();
}
/**
* Runs {@link TxSynchronization#beforeCommit} on the synchronizations registered from
* {@code fromIndex} onward, while their transaction is still active and its resource still
* bound. Unlike {@link #fireSynchronizations} this leaves them registered: they still have
* their post-completion callbacks to come. Exceptions propagate on purpose — a beforeCommit
* that throws vetoes the commit, see {@link TxSynchronization}.
*
* <p>Snapshots before iterating, so a callback that registers further synchronizations (a
* nested {@code Data#afterCommit}) doesn't mutate the list mid-loop. Those new ones join the
* transaction's post-completion callbacks without getting a {@code beforeCommit} of their own,
* which is the only coherent answer once the pass is already running.
*/
public static void fireBeforeCommit(boolean readOnly, int fromIndex) {
List<TxSynchronization> pending = SYNCHRONIZATIONS.get();
if (fromIndex >= pending.size()) {
return;
}
for (TxSynchronization sync : List.copyOf(pending.subList(fromIndex, pending.size()))) {
sync.beforeCommit(readOnly);
}
}
/**
* Fires (and removes) the synchronizations registered from {@code fromIndex} onward — the ones
* belonging to the transaction now completing. Everything before that index was registered by
* an enclosing transaction that is merely <em>suspended</em>, not finished: a REQUIRES_NEW
* inner transaction sets its own baseline, so committing it no longer drags the outer's
* pending callbacks along — which fired them early, and with the inner transaction's outcome,
* for an outer transaction that might still roll back.
*/
public static void fireSynchronizations(TxOutcome outcome, int fromIndex) {
List<TxSynchronization> pending = SYNCHRONIZATIONS.get();
if (fromIndex >= pending.size()) {
return;
}
List<TxSynchronization> syncs = List.copyOf(pending.subList(fromIndex, pending.size()));
pending.subList(fromIndex, pending.size()).clear();
for (TxSynchronization sync : syncs) {
if (outcome == TxOutcome.COMMITTED) {
sync.afterCommit();
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Sort.java
+5 -1
View File
@@ -7,6 +7,10 @@ public record Sort(List<Column> columns) {
public record Column(String column, boolean asc) {}
public static Sort unsorted() { return new Sort(List.of()); }
public boolean isSorted() { return !columns.isEmpty(); }
public static Sort by(String column) { return new Sort(List.of(new Column(column, true))); }
public static Sort desc(String column) { return new Sort(List.of(new Column(column, false))); }
public static Sort by(String col, boolean asc){ return new Sort(List.of(new Column(col, asc))); }
@@ -19,4 +23,4 @@ public record Sort(List<Column> columns) {
next.add(new Column(column, asc));
return new Sort(next);
}
}
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Spec.java
+26
View File
@@ -0,0 +1,26 @@
package dev.relism.flash.ext.data.core;
@FunctionalInterface
public interface Spec<T> {
String toFragment(SpecContext ctx);
default Spec<T> and(Spec<T> other) {
return ctx -> "(" + this.toFragment(ctx) + " AND " + other.toFragment(ctx) + ")";
}
default Spec<T> or(Spec<T> other) {
return ctx -> "(" + this.toFragment(ctx) + " OR " + other.toFragment(ctx) + ")";
}
default Spec<T> not() {
return ctx -> "NOT (" + this.toFragment(ctx) + ")";
}
static <T> Spec<T> all() {
return ctx -> "1=1";
}
static <T> Spec<T> none() {
return ctx -> "1=0";
}
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/SpecBuilder.java
+37
View File
@@ -0,0 +1,37 @@
package dev.relism.flash.ext.data.core;
import java.util.Collection;
import java.util.Objects;
import java.util.stream.Collectors;
public final class SpecBuilder<T> {
private SpecBuilder() {}
public static <T, V> FieldSpec<T, V> field(String column) {
return new FieldSpec<>(column);
}
public static final class FieldSpec<T, V> {
private final String column;
private FieldSpec(String column) {
this.column = Objects.requireNonNull(column);
}
public Spec<T> eq(V value) { return ctx -> column + " = " + ctx.bind(value); }
public Spec<T> neq(V value) { return ctx -> column + " != " + ctx.bind(value); }
public Spec<T> like(String pattern) { return ctx -> column + " like " + ctx.bind(pattern); }
public Spec<T> isNull() { return ctx -> column + " is null"; }
public Spec<T> isNotNull() { return ctx -> column + " is not null"; }
public Spec<T> in(Collection<V> values) {
return ctx -> column + " in (" + values.stream().map(ctx::bind).collect(Collectors.joining(", ")) + ")";
}
public <C extends Comparable<C>> Spec<T> gt(C value) { return ctx -> column + " > " + ctx.bind(value); }
public <C extends Comparable<C>> Spec<T> lt(C value) { return ctx -> column + " < " + ctx.bind(value); }
public <C extends Comparable<C>> Spec<T> between(C lo, C hi) {
return ctx -> column + " between " + ctx.bind(lo) + " and " + ctx.bind(hi);
}
}
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/SpecContext.java
+5
View File
@@ -0,0 +1,5 @@
package dev.relism.flash.ext.data.core;
public interface SpecContext {
String bind(Object value);
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TransactionPropagation.java
+1
View File
@@ -3,6 +3,7 @@ package dev.relism.flash.ext.data.core;
public enum TransactionPropagation {
REQUIRED,
REQUIRES_NEW,
SUPPORTS,
NOT_SUPPORTED,
MANDATORY
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/Tx.java
+38 -31
View File
@@ -2,83 +2,78 @@ package dev.relism.flash.ext.data.core;
import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Objects;
public final class Tx {
private static final ThreadLocal<Deque<TxStatus>> STATUS_STACK =
ThreadLocal.withInitial(ArrayDeque::new);
private static volatile TxManager manager;
private final TxManager manager;
private Tx() {}
public static void init(TxManager txManager) {
if (manager != null) {
throw new IllegalStateException("TxManager already initialized");
}
manager = txManager;
public Tx(TxManager txManager) {
this.manager = Objects.requireNonNull(txManager);
}
public static void run(TxRunnable work) {
public void run(TxRunnable work) {
run(TxDefinition.DEFAULTS, work);
}
public static void run(TxDefinition definition, TxRunnable work) {
public void run(TxDefinition definition, TxRunnable work) {
call(definition, () -> {
work.run();
return null;
});
}
public static <T> T call(TxCallable<T> work) {
public <T> T call(TxCallable<T> work) {
return call(TxDefinition.DEFAULTS, work);
}
public static <T> T call(TxDefinition definition, TxCallable<T> work) {
TxStatus status = manager().begin(definition);
public <T> T call(TxDefinition definition, TxCallable<T> work) {
TxStatus status = manager.begin(definition);
pushStatus(status);
try {
T result = work.call();
if (status.isRollbackOnly()) {
manager().rollback(status);
manager.rollback(status);
} else {
manager().commit(status);
manager.commit(status);
}
return result;
} catch (Exception e) {
manager().rollback(status);
silentRollback(status);
throw (e instanceof TxException txException) ? txException : new TxException(e);
} catch (Throwable t) {
silentRollback(status);
throw sneakyThrow(t);
} finally {
popStatus();
if (STATUS_STACK.get().isEmpty()) {
STATUS_STACK.remove();
}
}
}
public static boolean isActive() {
public boolean isActive() {
return !STATUS_STACK.get().isEmpty();
}
public static void setRollbackOnly() {
public void setRollbackOnly() {
currentStatus().markRollbackOnly();
}
public static <R> R resource(Class<R> type) {
public <R> R resource(Class<R> type) {
return currentStatus().resource(type);
}
public static TxDefinition requiresNew() {
public TxDefinition requiresNew() {
return TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRES_NEW);
}
public static TxDefinition readOnly() {
public TxDefinition readOnly() {
return TxDefinition.DEFAULTS.asReadOnly();
}
private static TxManager manager() {
if (manager == null) {
throw new IllegalStateException("No TxManager installed");
}
return manager;
}
private static TxStatus currentStatus() {
private TxStatus currentStatus() {
TxStatus status = STATUS_STACK.get().peek();
if (status == null) {
throw new IllegalStateException("No active transaction");
@@ -86,17 +81,29 @@ public final class Tx {
return status;
}
private static void pushStatus(TxStatus status) {
private void pushStatus(TxStatus status) {
STATUS_STACK.get().push(status);
}
private static void popStatus() {
private void popStatus() {
Deque<TxStatus> stack = STATUS_STACK.get();
if (!stack.isEmpty()) {
stack.pop();
}
}
private void silentRollback(TxStatus status) {
try {
manager.rollback(status);
} catch (Exception ignored) {
}
}
@SuppressWarnings("unchecked")
private static <E extends Throwable> RuntimeException sneakyThrow(Throwable t) throws E {
throw (E) t;
}
@FunctionalInterface
public interface TxRunnable {
void run();
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxManager.java
+5 -1
View File
@@ -1,7 +1,11 @@
package dev.relism.flash.ext.data.core;
public interface TxManager {
public interface TxManager extends AutoCloseable {
TxStatus begin(TxDefinition definition);
void commit(TxStatus status);
void rollback(TxStatus status);
/** Releases what this manager was built on, its connection pool included. {@link dev.relism.flash.ext.data.DataExtension} calls it when the app stops. */
@Override
void close();
}
flash-extensions/flash-ext-data-core/src/main/java/dev/relism/flash/ext/data/core/TxSynchronization.java
+50
View File
@@ -1,8 +1,58 @@
package dev.relism.flash.ext.data.core;
/**
* Lifecycle hooks for one transaction, registered through {@code Data#afterCommit} (or
* {@link ResourceRegistry#addSynchronization} directly) and fired by the {@link TxManager} that
* owns the transaction they were registered in.
*
* <p>Every callback belongs to exactly one transaction — the innermost one active at registration
* time — and fires exactly once, when <em>that</em> transaction completes. A joined
* ({@code REQUIRED}) inner transaction is not a transaction of its own, so callbacks registered
* inside one wait for the outermost commit; a {@code REQUIRES_NEW} transaction is, so completing
* it fires only its own callbacks and leaves the suspended outer transaction's alone.
*
* <h3>Where each hook sits relative to the commit</h3>
* <ul>
* <li>{@link #beforeCommit(boolean)} — immediately <b>before</b> the real commit, with the
* transaction still active and its session/connection still bound. This is the only hook
* that can still write through that same resource and have the write land in the same atomic
* unit: flush a buffer, stamp an audit row, materialize a derived value. Skipped entirely
* when the transaction is already rollback-only, since there is no commit to precede.</li>
* <li>{@link #afterCommit()} / {@link #afterRollback()}, then {@link #afterCompletion(TxOutcome)}
* — <b>after</b> the transaction has completed and its resource has been unbound. Nothing
* done here is part of the transaction: a callback that opens its own transaction gets a
* fresh one instead of joining the one that just finished, which is what makes this the
* right place to refresh a cache, enqueue a message, or notify anything outside the
* database.</li>
* </ul>
*
* <h3>Failure</h3>
* Throwing from {@link #beforeCommit(boolean)} <b>vetoes the commit</b>: the transaction is rolled
* back, {@link #afterRollback()}/{@link #afterCompletion(TxOutcome)} fire with
* {@link TxOutcome#ROLLED_BACK}, and the exception propagates to the caller. That is the point of
* this hook running before the commit rather than after — it can still refuse.
*
* <p>The post-completion hooks have no such power: the transaction is over by the time they run,
* so an exception from one propagates to the caller but changes nothing already committed, and
* stops the callbacks queued behind it.
*/
public interface TxSynchronization {
/**
* Runs inside the transaction, immediately before it commits — see the interface javadoc.
* Throwing from here rolls the transaction back instead of committing it.
*
* @param readOnly whether the transaction was opened read-only, so a callback that would
* otherwise write can skip work it is not allowed to do
*/
default void beforeCommit(boolean readOnly) {}
/** Runs after a successful commit, with the transaction's resource already unbound. */
default void afterCommit() {}
/** Runs after a rollback, with the transaction's resource already unbound. */
default void afterRollback() {}
/** Runs after {@link #afterCommit()}/{@link #afterRollback()}, whichever applied. */
default void afterCompletion(TxOutcome outcome) {}
}
flash-extensions/flash-ext-data-hibernate/docs/README.md
+95
View File
@@ -0,0 +1,95 @@
# flash-ext-data-hibernate
Hibernate backend for `flash-ext-data-core`.
## Purpose
This module implements `TxManager` on top of a `SessionFactory` and provides a Hibernate-centric
repository base class.
## How to use it
### 1. Create the manager
```java
SessionFactory sessionFactory = ...;
HibernateTxManager txManager = new HibernateTxManager(sessionFactory);
DataExtension extension = new DataExtension(txManager);
```
### 2. Install the extension in Flash
The extension registers `Tx` and `TxManager` in the `FlashContext`. Class-based handlers annotated
with `@Transactional` are wrapped automatically.
### 3. Define a repository
```java
public final class UserRepository extends HibernateRepository<User, Long> {
public UserRepository(Tx tx) {
super(tx, User.class);
}
}
```
With the query/spec model you can expose reusable fields as constants:
```java
public final class UserRepository extends HibernateRepository<User, Long> {
public static final SpecBuilder.FieldSpec<User, String> EMAIL = SpecBuilder.field("u.email");
public static final SpecBuilder.FieldSpec<User, Boolean> ACTIVE = SpecBuilder.field("u.active");
public UserRepository(Tx tx) {
super(tx, User.class);
}
public Optional<User> findByEmail(String email) {
return findOne(EMAIL.eq(email));
}
}
```
Domain-specific queries can use the base class helpers:
```java
public List<User> findByEmailDomain(String domain) {
return findMany("from User u where u.email like :email", q ->
q.setParameter("email", "%@" + domain)
);
}
```
## How it works underneath
- The current transaction is represented by `HibernateTxStatus`.
- The resource exposed to the core is a `Session`.
- `Tx.resource(Session.class)` retrieves the `Session` from the current context.
- `REQUIRES_NEW` suspends the active status and opens a new `Session`.
- `NOT_SUPPORTED` suspends the active transaction and continues with no session bound.
## Repository base class
`HibernateRepository` provides:
- `findById`, `findAll`, `findPage`, `findOne`
- `save`, `update`, `delete`, `saveAll`
- bulk `deleteAll(Spec<T>)` and `updateAll(Spec<T>, T)`
- HQL helpers: `hql(...)`, `hqlMutate(...)`
Concrete classes only have to implement domain queries, never the transactional plumbing.
## Transactional semantics
- `REQUIRED`: join, or open a new transaction.
- `REQUIRES_NEW`: suspend the current context.
- `SUPPORTS`: join if a transaction exists, otherwise no-op.
- `NOT_SUPPORTED`: suspend and continue without a transaction.
- `MANDATORY`: fail if there is no transaction.
## Notes
- The `Session` is closed when a new transaction ends.
- Synchronizations registered in a transaction fire when *that* transaction completes:
`beforeCommit` while it is still active and the `Session` still bound, the post-completion hooks
once it is unbound. See `flash-ext-data-core/docs/README.md` for the full contract.
- This backend is meant to be used through the base class, not directly.
flash-extensions/flash-ext-data-hibernate/pom.xml
+1 -1
View File
@@ -7,7 +7,7 @@
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.0.0</version>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-data-hibernate</artifactId>
flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateData.java
+25
View File
@@ -0,0 +1,25 @@
package dev.relism.flash.ext.data.hibernate;
import dev.relism.flash.ext.data.core.Data;
import dev.relism.flash.ext.data.core.Repository;
import dev.relism.flash.ext.data.core.RepositoryFactory;
import dev.relism.flash.ext.data.core.Tx;
import dev.relism.flash.ext.data.core.TxManager;
import java.io.Serializable;
/** Hibernate-backed {@link Data} factory. */
public final class HibernateData {
private HibernateData() {}
private static final RepositoryFactory REPOSITORIES = new RepositoryFactory() {
@Override
public <T, ID extends Serializable> Repository<T, ID> create(Tx tx, Class<T> type) {
return new HibernateRepository<T, ID>(tx, type) {};
}
};
public static Data create(TxManager manager) {
Tx tx = new Tx(manager);
return new Data(tx, REPOSITORIES);
}
}
flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateRepository.java
+77 -87
View File
@@ -1,79 +1,74 @@
package dev.relism.flash.ext.data.hibernate;
import dev.relism.flash.ext.data.core.*;
import jakarta.persistence.TypedQuery;
import org.hibernate.Session;
import org.hibernate.query.MutationQuery;
import jakarta.persistence.TypedQuery;
import java.io.Serializable;
import java.util.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.function.Consumer;
import java.util.stream.Collectors;
/**
* Hibernate-backed repository base.
* Never extend this directly — extend {@link Repository} from the core.
* This class is instantiated internally by flash-ext-data-hibernate.
*/
public abstract class HibernateRepository<T, ID extends Serializable>
extends Repository<T, ID> {
public abstract class HibernateRepository<T, ID extends Serializable> extends Repository<T, ID> {
private final Class<T> type;
protected HibernateRepository(Class<T> type) {
protected HibernateRepository(Tx tx, Class<T> type) {
super(tx);
this.type = type;
}
// ── Session — always safe, tx() wrapper guarantees active transaction ─────
protected Session session() {
return Tx.resource(Session.class);
return tx().resource(Session.class);
}
// ── Repository abstract impl ──────────────────────────────────────────────
@Override
protected Optional<T> doFindById(ID id) {
return Optional.ofNullable(session().get(type, id));
}
@Override
protected List<T> doFindAll() {
return hql("from " + type.getSimpleName()).getResultList();
protected List<T> doFind(Query<T> query) {
HibernateSpecContext ctx = new HibernateSpecContext();
String where = query.spec() != null ? " where " + query.spec().toFragment(ctx) : "";
String order = query.sort() != null && query.sort().isSorted() ? " order by " + orderClause(query.sort()) : "";
TypedQuery<T> q = session().createQuery("from " + type.getSimpleName() + where + order, type);
ctx.applyParameters(q);
if (query.isPaged()) {
q.setFirstResult(query.page() * query.size());
q.setMaxResults(query.size());
}
return q.getResultList();
}
@Override
protected List<T> doFindAll(int page, int size) {
return hql("from " + type.getSimpleName())
.setFirstResult(page * size)
.setMaxResults(size)
.getResultList();
protected Optional<T> doFindOne(Spec<T> spec) {
return doFind(Query.<T>all().where(spec).page(0, 1)).stream().findFirst();
}
@Override
protected List<T> doFindAll(Sort sort) {
return hql("from " + type.getSimpleName() + orderClause(sort))
.getResultList();
protected Page<T> doFindPage(Query<T> query) {
if (!query.isPaged()) {
throw new IllegalArgumentException("Paged query requires page and size");
}
long total = countWhere(query.spec());
List<T> content = doFind(query);
return new Page<>(content, query.page(), query.size(), total);
}
@Override
protected List<T> doFindAll(int page, int size, Sort sort) {
return hql("from " + type.getSimpleName() + orderClause(sort))
.setFirstResult(page * size)
.setMaxResults(size)
.getResultList();
protected boolean doExistsById(ID id) {
return doFindById(id).isPresent();
}
@Override
protected Page<T> doFindPage(int page, int size) {
long total = doCount();
return new Page<>(doFindAll(page, size), page, size, total);
}
@Override
protected Page<T> doFindPage(int page, int size, Sort sort) {
long total = doCount();
return new Page<>(doFindAll(page, size, sort), page, size, total);
protected long doCount() {
return countWhere(Spec.all());
}
@Override
@@ -82,6 +77,22 @@ public abstract class HibernateRepository<T, ID extends Serializable>
return entity;
}
@Override
protected List<T> doSaveAll(Iterable<T> entities) {
List<T> saved = new ArrayList<>();
Session s = session();
int i = 0;
for (T entity : entities) {
s.persist(entity);
saved.add(entity);
if (++i % 50 == 0) {
s.flush();
s.clear();
}
}
return saved;
}
@Override
protected T doUpdate(T entity) {
return session().merge(entity);
@@ -99,66 +110,37 @@ public abstract class HibernateRepository<T, ID extends Serializable>
}
@Override
protected boolean doExistsById(ID id) {
return doFindById(id).isPresent();
protected int doDeleteAll(Spec<T> spec) {
HibernateSpecContext ctx = new HibernateSpecContext();
String where = " where " + spec.toFragment(ctx);
MutationQuery q = session().createMutationQuery("delete from " + type.getSimpleName() + where);
ctx.applyParameters(q);
return q.executeUpdate();
}
@Override
protected long doCount() {
return session()
.createQuery("select count(*) from " + type.getSimpleName(), Long.class)
.uniqueResultOptional()
.orElse(0L);
protected int doUpdateAll(Spec<T> spec, T patch) {
throw new UnsupportedOperationException("Override doUpdateAll() for bulk UPDATE support");
}
// ── Query helpers — usabili nelle sottoclassi domain ─────────────────────
protected TypedQuery<T> hql(String hql) {
return session().createQuery(hql, type);
}
protected <R> TypedQuery<R> hql(String hql, Class<R> resultType) {
return session().createQuery(hql, resultType);
}
protected Optional<T> findOne(String hql, Consumer<TypedQuery<T>> params) {
TypedQuery<T> q = hql(hql);
params.accept(q);
return q.getResultStream().findFirst();
}
protected List<T> findMany(String hql, Consumer<TypedQuery<T>> params) {
return tx(() -> {
TypedQuery<T> q = hql(hql);
protected List<T> hql(String hql, Consumer<TypedQuery<T>> params) {
return roQuery(() -> {
TypedQuery<T> q = session().createQuery(hql, type);
params.accept(q);
return q.getResultList();
});
}
protected List<T> findMany(String hql, Consumer<TypedQuery<T>> params,
int page, int size) {
return tx(() -> {
TypedQuery<T> q = hql(hql);
protected <R> List<R> hql(String hql, Class<R> resultType, Consumer<TypedQuery<R>> params) {
return roQuery(() -> {
TypedQuery<R> q = session().createQuery(hql, resultType);
params.accept(q);
return q.setFirstResult(page * size).setMaxResults(size).getResultList();
return q.getResultList();
});
}
protected Page<T> findManyPaged(String hql, String countHql,
Consumer<TypedQuery<T>> params,
int page, int size) {
return tx(() -> {
long total = session()
.createQuery(countHql, Long.class)
.uniqueResultOptional()
.orElse(0L);
List<T> content = findMany(hql, params, page, size);
return new Page<>(content, page, size, total);
});
}
protected int execute(String hql, Consumer<MutationQuery> params) {
return tx(() -> {
protected int hqlMutate(String hql, Consumer<MutationQuery> params) {
return rwQuery(() -> {
MutationQuery q = session().createMutationQuery(hql);
params.accept(q);
return q.executeUpdate();
@@ -169,9 +151,17 @@ public abstract class HibernateRepository<T, ID extends Serializable>
return type;
}
private long countWhere(Spec<T> spec) {
HibernateSpecContext ctx = new HibernateSpecContext();
String where = spec != null ? " where " + spec.toFragment(ctx) : "";
TypedQuery<Long> q = session().createQuery("select count(*) from " + type.getSimpleName() + where, Long.class);
ctx.applyParameters(q);
return q.getResultStream().findFirst().orElse(0L);
}
private String orderClause(Sort sort) {
return " order by " + sort.columns().stream()
return sort.columns().stream()
.map(c -> c.column() + (c.asc() ? " ASC" : " DESC"))
.collect(Collectors.joining(", "));
}
}
}
flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateSpecContext.java
+28
View File
@@ -0,0 +1,28 @@
package dev.relism.flash.ext.data.hibernate;
import dev.relism.flash.ext.data.core.SpecContext;
import jakarta.persistence.TypedQuery;
import org.hibernate.query.MutationQuery;
import java.util.LinkedHashMap;
import java.util.Map;
final class HibernateSpecContext implements SpecContext {
private final Map<String, Object> params = new LinkedHashMap<>();
private int counter;
@Override
public String bind(Object value) {
String name = "p" + (++counter);
params.put(name, value);
return ":" + name;
}
void applyParameters(TypedQuery<?> query) {
params.forEach(query::setParameter);
}
void applyParameters(MutationQuery query) {
params.forEach(query::setParameter);
}
}
flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateTxManager.java
+150 -23
View File
@@ -3,11 +3,16 @@ package dev.relism.flash.ext.data.hibernate;
import dev.relism.flash.ext.data.core.*;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import javax.sql.DataSource;
import java.util.Objects;
public class HibernateTxManager implements TxManager {
private static final TxResourceKey HIBERNATE_STATUS_KEY = TxResourceKey.of("hibernate.tx.status");
private static final TxResourceKey HIBERNATE_SUSPENDED_KEY = TxResourceKey.of("hibernate.tx.suspended");
private final SessionFactory sf;
@@ -15,6 +20,24 @@ public class HibernateTxManager implements TxManager {
this.sf = Objects.requireNonNull(sessionFactory);
}
/**
* Closes the session factory, then the data source it was given ({@code jakarta.persistence.nonJtaDataSource}
* or {@code hibernate.connection.datasource}): Hibernate stops a pool it built itself, never one handed to it.
*/
@Override
public void close() {
ConnectionProvider connections = sf.unwrap(SessionFactoryImplementor.class).getServiceRegistry().getService(ConnectionProvider.class);
DataSource ds = connections != null && connections.isUnwrappableAs(DataSource.class) ? connections.unwrap(DataSource.class) : null;
sf.close();
if (ds instanceof AutoCloseable closeable) {
try {
closeable.close();
} catch (Exception e) {
throw new IllegalStateException("Failed to close the data source", e);
}
}
}
@Override
public TxStatus begin(TxDefinition definition) {
return switch (definition.propagation()) {
@@ -22,35 +45,60 @@ public class HibernateTxManager implements TxManager {
? joinExisting(definition)
: beginNew(definition);
case REQUIRES_NEW -> beginNew(definition);
case SUPPORTS -> ResourceRegistry.isBound(HIBERNATE_STATUS_KEY)
? joinExisting(definition)
: noOp(definition);
case MANDATORY -> {
if (!ResourceRegistry.isBound(HIBERNATE_STATUS_KEY))
throw new IllegalStateException("MANDATORY: no active transaction");
yield joinExisting(definition);
}
case NOT_SUPPORTED -> throw new UnsupportedOperationException("NOT_SUPPORTED is not implemented");
case NOT_SUPPORTED -> {
HibernateTxStatus suspended = suspendIfNeeded();
yield noOp(definition, suspended);
}
};
}
private TxStatus beginNew(TxDefinition definition) {
HibernateTxStatus suspended = ResourceRegistry.getOrNull(HIBERNATE_STATUS_KEY, HibernateTxStatus.class);
if (suspended != null) {
ResourceRegistry.unbind(HIBERNATE_STATUS_KEY);
}
return beginNew(definition, suspendIfNeeded());
}
private TxStatus beginNew(TxDefinition definition, HibernateTxStatus suspended) {
// Anything already registered belongs to an enclosing transaction this one is nested
// inside (or suspended over) — see ResourceRegistry#fireSynchronizations.
int synchronizationBaseline = ResourceRegistry.synchronizationCount();
Session s = sf.openSession();
s.beginTransaction();
if (definition.readOnly()) s.setDefaultReadOnly(true);
if (definition.isolation() != TransactionIsolation.DEFAULT) {
s.doWork(connection -> connection.setTransactionIsolation(definition.isolation().level()));
boolean bound = false;
try {
s.beginTransaction();
if (definition.readOnly()) s.setDefaultReadOnly(true);
if (definition.isolation() != TransactionIsolation.DEFAULT) {
s.doWork(connection -> connection.setTransactionIsolation(definition.isolation().level()));
}
HibernateTxStatus status = new HibernateTxStatus(
s,
true,
definition.readOnly(),
suspended,
new HibernateTxStatus.RollbackMarker(),
synchronizationBaseline
);
ResourceRegistry.bind(HIBERNATE_STATUS_KEY, status);
bound = true;
return status;
} catch (RuntimeException e) {
silentClose(s);
throw e;
} catch (Exception e) {
silentClose(s);
throw new TxException(e);
} finally {
if (!bound && suspended != null) {
ResourceRegistry.unbind(HIBERNATE_SUSPENDED_KEY);
ResourceRegistry.bind(HIBERNATE_STATUS_KEY, suspended);
}
}
HibernateTxStatus status = new HibernateTxStatus(
s,
true,
definition.readOnly(),
suspended,
new HibernateTxStatus.RollbackMarker()
);
ResourceRegistry.bind(HIBERNATE_STATUS_KEY, status);
return status;
}
private TxStatus joinExisting(TxDefinition definition) {
@@ -58,31 +106,81 @@ public class HibernateTxManager implements TxManager {
if (definition.readOnly() && !existing.isReadOnly()) {
throw new TxException("Cannot join read-write tx as read-only");
}
// Baseline 0 is never read: a joined status isn't a new transaction, so commit()/rollback()
// hand it straight back to the transaction it joined without firing anything.
return new HibernateTxStatus(
existing.session(),
false,
definition.readOnly(),
null,
existing.rollbackMarker()
existing.rollbackMarker(),
0
);
}
private TxStatus noOp(TxDefinition definition) {
return noOp(definition, null);
}
private TxStatus noOp(TxDefinition definition, HibernateTxStatus suspended) {
return new HibernateTxStatus(null, false, definition.readOnly(), suspended, new HibernateTxStatus.RollbackMarker(), 0);
}
private HibernateTxStatus suspendIfNeeded() {
HibernateTxStatus suspended = ResourceRegistry.getOrNull(HIBERNATE_STATUS_KEY, HibernateTxStatus.class);
if (suspended != null) {
ResourceRegistry.unbind(HIBERNATE_STATUS_KEY);
ResourceRegistry.bind(HIBERNATE_SUSPENDED_KEY, suspended);
}
return suspended;
}
@Override
public void commit(TxStatus status) {
HibernateTxStatus s = (HibernateTxStatus) status;
if (!s.isNewTransaction()) {
resumeIfNeeded(s);
cleanupIfIdle();
return;
}
TxOutcome outcome = null;
try {
if (s.isRollbackOnly() && s.session().getTransaction().isActive()) {
s.session().getTransaction().rollback();
ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK);
outcome = TxOutcome.ROLLED_BACK;
} else {
// Still inside the transaction, session still bound: a beforeCommit callback can
// write through it and land in this same commit. Throwing from there vetoes the
// commit — see TxSynchronization.
ResourceRegistry.fireBeforeCommit(s.isReadOnly(), s.synchronizationBaseline());
s.session().getTransaction().commit();
ResourceRegistry.fireSynchronizations(TxOutcome.COMMITTED);
outcome = TxOutcome.COMMITTED;
}
} catch (RuntimeException e) {
// A vetoing beforeCommit, or a commit that failed outright: either way nothing was
// committed, so roll back and let the remaining callbacks hear ROLLED_BACK rather than
// nothing at all. A rollback failure here is swallowed deliberately — it would mask
// the exception that actually explains what went wrong, which is the one propagating.
if (s.session().getTransaction().isActive()) {
try {
s.session().getTransaction().rollback();
} catch (RuntimeException suppressed) {
e.addSuppressed(suppressed);
}
}
outcome = TxOutcome.ROLLED_BACK;
throw e;
} finally {
// Order is load-bearing, and getting it wrong is silent: cleanupIfIdle() calls
// ResourceRegistry.cleanup(), which removes the very ThreadLocal list of
// synchronizations still waiting to be fired — firing afterwards saw a freshly
// initialized empty list and dropped every callback on the floor. cleanupAndResume()
// still has to come first, so a synchronization that opens its own transaction
// (Registry#reload() in Pathway does) starts a fresh one instead of joining the
// session that just committed. rollback() below already had this order right.
cleanupAndResume(s);
if (outcome != null) ResourceRegistry.fireSynchronizations(outcome, s.synchronizationBaseline());
cleanupIfIdle();
}
}
@@ -91,24 +189,53 @@ public class HibernateTxManager implements TxManager {
HibernateTxStatus s = (HibernateTxStatus) status;
if (!s.isNewTransaction()) {
s.markRollbackOnly();
resumeIfNeeded(s);
cleanupIfIdle();
return;
}
try {
if (s.session().getTransaction().isActive()) {
s.session().getTransaction().rollback();
}
ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK);
} finally {
// Same order as commit(): unbind the session first so a callback opening its own
// transaction gets a fresh one, fire before cleanupIfIdle() can drop the list.
cleanupAndResume(s);
ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK, s.synchronizationBaseline());
cleanupIfIdle();
}
}
private void cleanupAndResume(HibernateTxStatus status) {
ResourceRegistry.unbind(HIBERNATE_STATUS_KEY);
status.session().close();
silentClose(status.session());
resumeIfNeeded(status);
}
private void cleanupIfIdle() {
if (!ResourceRegistry.isBound(HIBERNATE_STATUS_KEY) && !ResourceRegistry.isBound(HIBERNATE_SUSPENDED_KEY)) {
ResourceRegistry.cleanup();
}
}
private void resumeIfNeeded(HibernateTxStatus status) {
HibernateTxStatus suspended = status.suspended();
if (suspended == null) {
suspended = ResourceRegistry.getOrNull(HIBERNATE_SUSPENDED_KEY, HibernateTxStatus.class);
}
if (suspended != null) {
ResourceRegistry.unbind(HIBERNATE_SUSPENDED_KEY);
ResourceRegistry.bind(HIBERNATE_STATUS_KEY, suspended);
}
}
private void silentClose(Session session) {
if (session == null) {
return;
}
try {
session.close();
} catch (Exception ignored) {
}
}
}
flash-extensions/flash-ext-data-hibernate/src/main/java/dev/relism/flash/ext/data/hibernate/HibernateTxStatus.java
+10 -1
View File
@@ -13,19 +13,22 @@ class HibernateTxStatus implements TxStatus {
private final boolean readOnly;
private final HibernateTxStatus suspended;
private final RollbackMarker rollbackMarker;
private final int synchronizationBaseline;
HibernateTxStatus(
Session session,
boolean newTransaction,
boolean readOnly,
HibernateTxStatus suspended,
RollbackMarker rollbackMarker
RollbackMarker rollbackMarker,
int synchronizationBaseline
) {
this.session = session;
this.newTransaction = newTransaction;
this.readOnly = readOnly;
this.suspended = suspended;
this.rollbackMarker = rollbackMarker;
this.synchronizationBaseline = synchronizationBaseline;
}
@Override public boolean isNewTransaction() { return newTransaction; }
@@ -35,10 +38,16 @@ class HibernateTxStatus implements TxStatus {
@Override
public <R> R resource(Class<R> type) {
if (session == null) {
throw new IllegalStateException("No session bound to this transaction status");
}
return type.cast(session);
}
Session session() { return session; }
HibernateTxStatus suspended() { return suspended; }
RollbackMarker rollbackMarker() { return rollbackMarker; }
/** Index into {@code ResourceRegistry}'s synchronization list where this transaction's own callbacks start. */
int synchronizationBaseline() { return synchronizationBaseline; }
}
flash-extensions/flash-ext-data-hibernate/src/test/java/dev/relism/flash/ext/data/hibernate/HibernateTxManagerCloseTest.java
+48
View File
@@ -0,0 +1,48 @@
package dev.relism.flash.ext.data.hibernate;
import org.hibernate.SessionFactory;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.AvailableSettings;
import org.junit.jupiter.api.Test;
import javax.sql.DataSource;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Logger;
import static org.junit.jupiter.api.Assertions.assertTrue;
class HibernateTxManagerCloseTest {
/** Stands in for a pool: closeable, and it records being closed. */
static final class Pool implements DataSource, AutoCloseable {
boolean closed;
@Override public Connection getConnection() throws SQLException { return DriverManager.getConnection("jdbc:h2:mem:tx-close;DB_CLOSE_DELAY=-1"); }
@Override public Connection getConnection(String user, String password) throws SQLException { return getConnection(); }
@Override public void close() { closed = true; }
@Override public <T> T unwrap(Class<T> type) { throw new UnsupportedOperationException(); }
@Override public boolean isWrapperFor(Class<?> type) { return false; }
@Override public PrintWriter getLogWriter() { return null; }
@Override public void setLogWriter(PrintWriter out) {}
@Override public void setLoginTimeout(int seconds) {}
@Override public int getLoginTimeout() { return 0; }
@Override public Logger getParentLogger() { throw new UnsupportedOperationException(); }
}
@Test
void closingTheManagerClosesTheDataSourceHibernateWasGiven() {
Pool pool = new Pool();
SessionFactory sf = new MetadataSources(new StandardServiceRegistryBuilder()
.applySetting(AvailableSettings.JAKARTA_NON_JTA_DATASOURCE, pool)
.applySetting(AvailableSettings.DIALECT, "org.hibernate.dialect.H2Dialect")
.build()).buildMetadata().buildSessionFactory();
new HibernateTxManager(sf).close();
assertTrue(sf.isClosed());
assertTrue(pool.closed);
}
}
flash-extensions/flash-ext-data-hibernate/src/test/java/dev/relism/flash/ext/data/hibernate/HibernateTxManagerSynchronizationTest.java
+258
View File
@@ -0,0 +1,258 @@
package dev.relism.flash.ext.data.hibernate;
import dev.relism.flash.ext.data.core.*;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
/**
* Transaction synchronization semantics — the {@code beforeCommit}/{@code afterCommit}/
* {@code afterRollback} callbacks {@code Data#afterCommit} exposes, and the contract callers build
* on: "my callback runs once, for my transaction, on the right side of the commit".
*
* <p>None of this was covered before, and the gap was not academic: {@link #afterCommit_fires_on_commit}
* failed against the original {@code commit()}, which fired synchronizations only after
* {@code cleanupIfIdle()} had already dropped the ThreadLocal list holding them — so every callback
* was silently discarded, on every commit, with no error and no log. Downstream that meant an admin
* write landing in Postgres while the in-memory cache it was supposed to refresh never heard about
* it until the process restarted.
*/
class HibernateTxManagerSynchronizationTest {
static SessionFactory sf;
static HibernateTxManager manager;
@BeforeAll
static void setup() {
sf = TestHelper.buildSessionFactory();
manager = new HibernateTxManager(sf);
}
@AfterAll
static void teardown() {
if (sf != null) {
sf.close();
}
}
@AfterEach
void cleanup() {
ResourceRegistry.clear();
}
/** Records which callbacks ran, in order — order is part of the contract, not just the fact they ran. */
private static final class Recorder implements TxSynchronization {
final List<String> calls = new ArrayList<>();
@Override public void beforeCommit(boolean readOnly) { calls.add("beforeCommit:" + readOnly); }
@Override public void afterCommit() { calls.add("afterCommit"); }
@Override public void afterRollback() { calls.add("afterRollback"); }
@Override public void afterCompletion(TxOutcome outcome) { calls.add("afterCompletion:" + outcome); }
}
private static final List<String> COMMITTED = List.of("beforeCommit:false", "afterCommit", "afterCompletion:COMMITTED");
private static final List<String> ROLLED_BACK = List.of("afterRollback", "afterCompletion:ROLLED_BACK");
@Test
void afterCommit_fires_on_commit() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(recorder);
manager.commit(tx);
assertEquals(COMMITTED, recorder.calls);
}
@Test
void afterRollback_fires_on_rollback() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(recorder);
manager.rollback(tx);
assertEquals(ROLLED_BACK, recorder.calls);
}
/** A commit() call on a tx already marked rollback-only really rolls back — and has no commit to precede. */
@Test
void commit_of_a_rollback_only_tx_rolls_back_without_running_beforeCommit() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
tx.markRollbackOnly();
ResourceRegistry.addSynchronization(recorder);
manager.commit(tx);
assertEquals(ROLLED_BACK, recorder.calls);
}
/** beforeCommit runs inside the transaction: session still bound, transaction still active. */
@Test
void beforeCommit_runs_while_the_transaction_is_still_active() {
List<Boolean> stillActive = new ArrayList<>();
List<Session> sessionSeen = new ArrayList<>();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
Session session = tx.resource(Session.class);
ResourceRegistry.addSynchronization(new TxSynchronization() {
@Override
public void beforeCommit(boolean readOnly) {
stillActive.add(session.getTransaction().isActive());
// MANDATORY only succeeds while a transaction is bound — proof this runs inside it.
TxStatus joined = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.MANDATORY));
sessionSeen.add(joined.resource(Session.class));
manager.commit(joined);
}
});
manager.commit(tx);
assertEquals(List.of(true), stillActive, "the transaction must not have committed yet");
assertSame(session, sessionSeen.get(0), "the same session must still be bound, so writes land in this commit");
}
@Test
void beforeCommit_is_told_whether_the_transaction_is_read_only() {
Recorder readWrite = new Recorder();
TxStatus rw = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(readWrite);
manager.commit(rw);
Recorder readOnly = new Recorder();
TxStatus ro = manager.begin(TxDefinition.DEFAULTS.asReadOnly());
ResourceRegistry.addSynchronization(readOnly);
manager.commit(ro);
assertEquals("beforeCommit:false", readWrite.calls.get(0));
assertEquals("beforeCommit:true", readOnly.calls.get(0));
}
/** Throwing from beforeCommit is a veto: no commit, the rollback callbacks run, the exception propagates. */
@Test
void a_throwing_beforeCommit_vetoes_the_commit() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
Session session = tx.resource(Session.class);
ResourceRegistry.addSynchronization(new TxSynchronization() {
@Override public void beforeCommit(boolean readOnly) { throw new IllegalStateException("veto"); }
});
ResourceRegistry.addSynchronization(recorder);
IllegalStateException thrown = assertThrows(IllegalStateException.class, () -> manager.commit(tx));
assertEquals("veto", thrown.getMessage());
assertFalse(session.getTransaction().isActive(), "the vetoed transaction must be rolled back, not left open");
assertEquals(ROLLED_BACK, recorder.calls, "the surviving callbacks must hear ROLLED_BACK, not silence");
}
/**
* The load-bearing ordering detail: post-completion callbacks run <em>after</em> the committed
* session is unbound, so a callback that opens its own transaction (a cache reload, an outbox
* drain) gets a fresh one instead of silently joining the transaction that just committed.
*/
@Test
void a_synchronization_may_open_its_own_transaction() {
List<Session> sessionsSeen = new ArrayList<>();
List<Boolean> wasNewTransaction = new ArrayList<>();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
Session committedSession = outer.resource(Session.class);
ResourceRegistry.addSynchronization(new TxSynchronization() {
@Override
public void afterCommit() {
TxStatus own = manager.begin(TxDefinition.DEFAULTS);
sessionsSeen.add(own.resource(Session.class));
wasNewTransaction.add(own.isNewTransaction());
manager.commit(own);
}
});
manager.commit(outer);
assertEquals(1, sessionsSeen.size(), "the callback must have run");
assertEquals(List.of(true), wasNewTransaction, "must start its own transaction, not join the committed one");
assertNotSame(committedSession, sessionsSeen.get(0));
}
/** A joined (REQUIRED) inner commit is not a real commit — callbacks wait for the outermost one. */
@Test
void a_joined_commit_defers_synchronizations_to_the_outermost_commit() {
Recorder recorder = new Recorder();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRED));
ResourceRegistry.addSynchronization(recorder);
manager.commit(inner);
assertEquals(List.of(), recorder.calls, "the joined commit did not commit anything yet");
manager.commit(outer);
assertEquals(COMMITTED, recorder.calls);
}
/** Each callback belongs to one transaction: a second transaction must not re-run the first's. */
@Test
void synchronizations_do_not_leak_into_the_next_transaction() {
Recorder recorder = new Recorder();
TxStatus first = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(recorder);
manager.commit(first);
recorder.calls.clear();
TxStatus second = manager.begin(TxDefinition.DEFAULTS);
manager.commit(second);
assertEquals(List.of(), recorder.calls);
}
/**
* A REQUIRES_NEW inner transaction suspends the outer one; committing the inner must not drag
* the still-pending outer transaction's callbacks along with it. They belong to a transaction
* that has not committed — and may yet roll back, in which case firing {@code afterCommit} for
* it would be a straight lie.
*/
@Test
void a_requires_new_commit_leaves_the_suspended_transactions_synchronizations_alone() {
Recorder outerSync = new Recorder();
Recorder innerSync = new Recorder();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(outerSync);
TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRES_NEW));
ResourceRegistry.addSynchronization(innerSync);
manager.commit(inner);
assertEquals(COMMITTED, innerSync.calls);
assertEquals(List.of(), outerSync.calls, "the outer transaction has not committed yet");
manager.commit(outer);
assertEquals(COMMITTED, outerSync.calls);
}
/** A rolled-back inner REQUIRES_NEW must not fire the outer's callbacks either — same reason, opposite outcome. */
@Test
void a_requires_new_rollback_leaves_the_suspended_transactions_synchronizations_alone() {
Recorder outerSync = new Recorder();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(outerSync);
TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRES_NEW));
manager.rollback(inner);
assertEquals(List.of(), outerSync.calls, "the outer transaction is still open");
manager.commit(outer);
assertEquals(COMMITTED, outerSync.calls);
}
}
flash-extensions/flash-ext-data-hibernate/src/test/java/dev/relism/flash/ext/data/hibernate/HibernateTxManagerTest.java
+40
View File
@@ -65,4 +65,44 @@ class HibernateTxManagerTest {
assertTrue(outer.isRollbackOnly());
manager.rollback(outer);
}
/** SUPPORTS without an active transaction yields a sessionless status: not a transaction, no session to hand out. */
@Test
void supports_without_active_transaction_is_a_sessionless_no_op() {
TxStatus s = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.SUPPORTS));
assertFalse(s.isNewTransaction());
assertThrows(IllegalStateException.class, () -> s.resource(Session.class));
assertDoesNotThrow(() -> manager.commit(s));
}
@Test
void not_supported_suspends_the_active_transaction_and_restores_it_on_commit() {
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
Session outerSession = outer.resource(Session.class);
TxStatus suspended = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.NOT_SUPPORTED));
assertFalse(suspended.isNewTransaction());
assertThrows(IllegalStateException.class, () -> suspended.resource(Session.class));
manager.commit(suspended);
TxStatus rejoined = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRED));
assertSame(outerSession, rejoined.resource(Session.class), "the suspended transaction must be back");
manager.rollback(outer);
}
@Test
void mandatory_without_active_transaction_is_rejected() {
assertThrows(IllegalStateException.class,
() -> manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.MANDATORY)));
}
/** A read-only join onto a read-write transaction is a contract violation, not a silent downgrade. */
@Test
void read_only_cannot_join_a_read_write_transaction() {
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
assertThrows(TxException.class,
() -> manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRED).asReadOnly()));
manager.rollback(outer);
}
}
flash-extensions/flash-ext-data-jdbc/docs/README.md
+101
View File
@@ -0,0 +1,101 @@
# flash-ext-data-jdbc
JDBC backend for `flash-ext-data-core`.
## Purpose
This module implements `TxManager` on top of a `DataSource` and provides a raw-SQL repository base
class.
## How to use it
### 1. Create the manager
```java
DataSource dataSource = ...;
JdbcTxManager txManager = new JdbcTxManager(dataSource);
DataExtension extension = new DataExtension(txManager);
```
### 2. Install the extension in Flash
As with Hibernate, `DataExtension` registers `Tx` in the `FlashContext` and enables
`@Transactional` on class-based handlers.
### 3. Define a repository
```java
public final class UserRepository extends JdbcRepository<User, Long> {
public UserRepository(Tx tx) {
super(tx, "users", "id");
}
@Override
protected User mapRow(ResultSet rs) throws SQLException {
return new User(rs.getLong("id"), rs.getString("name"));
}
}
```
Here too you can expose reusable `Spec`s and compose queries from the service layer:
```java
public final class UserRepository extends JdbcRepository<User, Long> {
public static final SpecBuilder.FieldSpec<User, String> EMAIL = SpecBuilder.field("email");
public UserRepository(Tx tx) {
super(tx, "users", "id");
}
}
```
Saving and updating need an explicit binding:
```java
@Override
protected String insertSql() {
return "insert into users(name) values(?)";
}
@Override
protected void bindInsert(PreparedStatement ps, User entity) throws SQLException {
ps.setString(1, entity.name());
}
```
## How it works underneath
- The current transaction exposes a `Connection`.
- `Tx.resource(Connection.class)` retrieves the connection bound to the thread.
- `REQUIRES_NEW` suspends the active connection and opens a new one.
- `NOT_SUPPORTED` suspends the context and continues without a transaction.
## Repository base class
`JdbcRepository` provides:
- `select` queries through `queryOne`, `queryMany`
- mutations through `mutate`
- persistence through `doSave`, `doUpdate`
- paging through `doFindPage`
- bulk `deleteAll(Spec<T>)`
- raw helpers `queryOne(...)`, `queryMany(...)`, `mutate(...)`
Concrete repositories only have to translate between `ResultSet` and the domain.
## Transactional semantics
- `REQUIRED`: join, or open a new transaction.
- `REQUIRES_NEW`: suspend the current context.
- `SUPPORTS`: join if a transaction exists, otherwise no-op.
- `NOT_SUPPORTED`: suspend and continue without a transaction.
- `MANDATORY`: fail if there is no transaction.
## Notes
- The `Connection` is closed when a new transaction ends.
- Synchronizations registered in a transaction fire when *that* transaction completes:
`beforeCommit` while it is still active and the `Connection` still bound, the post-completion
hooks once it is unbound. See `flash-ext-data-core/docs/README.md` for the full contract.
- If a repository uses `doDelete(T)`, the default behaviour is unsupported: use `deleteById` or
override it.
flash-extensions/flash-ext-data-jdbc/pom.xml
+1 -1
View File
@@ -7,7 +7,7 @@
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.0.0</version>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-data-jdbc</artifactId>
flash-extensions/flash-ext-data-jdbc/src/main/java/dev/relism/flash/ext/data/jdbc/JdbcRepository.java
+95 -63
View File
@@ -3,87 +3,99 @@ package dev.relism.flash.ext.data.jdbc;
import dev.relism.flash.ext.data.core.*;
import java.sql.*;
import java.util.*;
import java.util.stream.Collectors;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
public abstract class JdbcRepository<T, ID> extends Repository<T, ID> {
private final String table;
private final String idColumn;
protected JdbcRepository(String table, String idColumn) {
this.table = table;
protected JdbcRepository(Tx tx, String table, String idColumn) {
super(tx);
this.table = table;
this.idColumn = idColumn;
}
protected Connection connection() {
return Tx.resource(Connection.class);
return tx().resource(Connection.class);
}
// ── Subclass contract ─────────────────────────────────────────────────────
protected abstract T mapRow(ResultSet rs) throws SQLException;
protected abstract void bindInsert(PreparedStatement ps, T entity) throws SQLException;
protected abstract void bindUpdate(PreparedStatement ps, T entity) throws SQLException;
protected abstract T mapRow(ResultSet rs) throws SQLException;
protected abstract void bindInsert(PreparedStatement ps, T entity) throws SQLException;
protected abstract void bindUpdate(PreparedStatement ps, T entity) throws SQLException;
protected abstract String insertSql();
protected abstract String updateSql();
// ── Repository abstract impl ──────────────────────────────────────────────
@Override
protected Optional<T> doFindById(ID id) {
return queryOne("select * from " + table + " where " + idColumn + " = ?",
ps -> ps.setObject(1, id));
return queryOne("select * from " + table + " where " + idColumn + " = ?", ps -> ps.setObject(1, id));
}
@Override
protected List<T> doFindAll() {
return queryMany("select * from " + table, ps -> {});
}
protected List<T> doFind(Query<T> query) {
JdbcSpecContext ctx = new JdbcSpecContext();
String where = query.spec() != null ? " where " + query.spec().toFragment(ctx) : "";
String order = query.sort() != null && query.sort().isSorted() ? " order by " + orderClause(query.sort()) : "";
String paging = query.isPaged() ? " limit ? offset ?" : "";
@Override
protected List<T> doFindAll(int page, int size) {
return queryMany("select * from " + table + " limit ? offset ?", ps -> {
ps.setInt(1, size);
ps.setInt(2, page * size);
return queryMany("select * from " + table + where + order + paging, ps -> {
if (query.isPaged()) {
ctx.applyParameters(ps);
int base = ctx.size();
ps.setInt(base + 1, query.size());
ps.setInt(base + 2, query.page() * query.size());
return;
}
ctx.applyParameters(ps);
});
}
@Override
protected List<T> doFindAll(Sort sort) {
return queryMany("select * from " + table + orderClause(sort), ps -> {});
protected Optional<T> doFindOne(Spec<T> spec) {
return doFind(Query.<T>all().where(spec).page(0, 1)).stream().findFirst();
}
@Override
protected List<T> doFindAll(int page, int size, Sort sort) {
return queryMany("select * from " + table + orderClause(sort) + " limit ? offset ?",
ps -> {
ps.setInt(1, size);
ps.setInt(2, page * size);
});
protected Page<T> doFindPage(Query<T> query) {
if (!query.isPaged()) {
throw new IllegalArgumentException("Paged query requires page and size");
}
long total = countWhere(query.spec());
List<T> content = doFind(query);
return new Page<>(content, query.page(), query.size(), total);
}
@Override
protected Page<T> doFindPage(int page, int size) {
long total = doCount();
return new Page<>(doFindAll(page, size), page, size, total);
protected boolean doExistsById(ID id) {
return queryOne("select 1 from " + table + " where " + idColumn + " = ?", ps -> ps.setObject(1, id), rs -> rs.getInt(1)).isPresent();
}
@Override
protected Page<T> doFindPage(int page, int size, Sort sort) {
long total = doCount();
return new Page<>(doFindAll(page, size, sort), page, size, total);
protected long doCount() {
return queryOne("select count(*) from " + table, ps -> {}, rs -> rs.getLong(1)).orElse(0L);
}
@Override
protected T doSave(T entity) {
try (PreparedStatement ps = connection().prepareStatement(
insertSql(), Statement.RETURN_GENERATED_KEYS)) {
try (PreparedStatement ps = connection().prepareStatement(insertSql(), Statement.RETURN_GENERATED_KEYS)) {
bindInsert(ps, entity);
ps.executeUpdate();
applyGeneratedKey(ps, entity);
return entity;
} catch (SQLException e) { throw new TxException(e); }
} catch (SQLException e) {
throw new TxException(e);
}
}
@Override
protected List<T> doSaveAll(Iterable<T> entities) {
List<T> saved = new ArrayList<>();
for (T entity : entities) {
saved.add(doSave(entity));
}
return saved;
}
@Override
@@ -92,7 +104,9 @@ public abstract class JdbcRepository<T, ID> extends Repository<T, ID> {
bindUpdate(ps, entity);
ps.executeUpdate();
return entity;
} catch (SQLException e) { throw new TxException(e); }
} catch (SQLException e) {
throw new TxException(e);
}
}
@Override
@@ -102,38 +116,35 @@ public abstract class JdbcRepository<T, ID> extends Repository<T, ID> {
@Override
protected void doDeleteById(ID id) {
mutate("delete from " + table + " where " + idColumn + " = ?",
ps -> ps.setObject(1, id));
mutate("delete from " + table + " where " + idColumn + " = ?", ps -> ps.setObject(1, id));
}
@Override
protected boolean doExistsById(ID id) {
return queryOne("select 1 from " + table + " where " + idColumn + " = ?",
ps -> ps.setObject(1, id),
rs -> rs.getInt(1)).isPresent();
protected int doDeleteAll(Spec<T> spec) {
JdbcSpecContext ctx = new JdbcSpecContext();
String where = " where " + spec.toFragment(ctx);
return mutate("delete from " + table + where, ctx::applyParameters);
}
@Override
protected long doCount() {
return queryOne("select count(*) from " + table, ps -> {},
rs -> rs.getLong(1)).orElse(0L);
protected int doUpdateAll(Spec<T> spec, T patch) {
throw new UnsupportedOperationException("Override doUpdateAll() for bulk UPDATE support");
}
// ── Query helpers ─────────────────────────────────────────────────────────
protected Optional<T> queryOne(String sql, SqlBinder params) {
List<T> r = queryMany(sql, params);
return r.isEmpty() ? Optional.empty() : Optional.of(r.get(0));
}
protected <R> Optional<R> queryOne(String sql, SqlBinder params,
SqlMapper<R> mapper) {
protected <R> Optional<R> queryOne(String sql, SqlBinder params, SqlMapper<R> mapper) {
try (PreparedStatement ps = connection().prepareStatement(sql)) {
params.bind(ps);
try (ResultSet rs = ps.executeQuery()) {
return rs.next() ? Optional.of(mapper.map(rs)) : Optional.empty();
}
} catch (SQLException e) { throw new TxException(e); }
} catch (SQLException e) {
throw new TxException(e);
}
}
protected List<T> queryMany(String sql, SqlBinder params) {
@@ -144,26 +155,47 @@ public abstract class JdbcRepository<T, ID> extends Repository<T, ID> {
while (rs.next()) results.add(mapRow(rs));
return results;
}
} catch (SQLException e) { throw new TxException(e); }
} catch (SQLException e) {
throw new TxException(e);
}
}
protected int mutate(String sql, SqlBinder params) {
try (PreparedStatement ps = connection().prepareStatement(sql)) {
params.bind(ps);
return ps.executeUpdate();
} catch (SQLException e) { throw new TxException(e); }
} catch (SQLException e) {
throw new TxException(e);
}
}
protected void applyGeneratedKey(PreparedStatement ps, T entity) throws SQLException {
// override when entity has a generated PK
}
private String orderClause(Sort sort) {
return " order by " + sort.columns().stream()
.map(c -> c.column() + (c.asc() ? " ASC" : " DESC"))
.collect(Collectors.joining(", "));
protected Class<T> entityType() {
return null;
}
@FunctionalInterface public interface SqlBinder { void bind(PreparedStatement ps) throws SQLException; }
@FunctionalInterface public interface SqlMapper<R> { R map(ResultSet rs) throws SQLException; }
}
private long countWhere(Spec<T> spec) {
JdbcSpecContext ctx = new JdbcSpecContext();
String where = spec != null ? " where " + spec.toFragment(ctx) : "";
return queryOne("select count(*) from " + table + where, ctx::applyParameters, rs -> rs.getLong(1)).orElse(0L);
}
private String orderClause(Sort sort) {
return sort.columns().stream()
.map(c -> c.column() + (c.asc() ? " ASC" : " DESC"))
.collect(java.util.stream.Collectors.joining(", "));
}
@FunctionalInterface
public interface SqlBinder {
void bind(PreparedStatement ps) throws SQLException;
}
@FunctionalInterface
public interface SqlMapper<R> {
R map(ResultSet rs) throws SQLException;
}
}
flash-extensions/flash-ext-data-jdbc/src/main/java/dev/relism/flash/ext/data/jdbc/JdbcSpecContext.java
+28
View File
@@ -0,0 +1,28 @@
package dev.relism.flash.ext.data.jdbc;
import dev.relism.flash.ext.data.core.SpecContext;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
final class JdbcSpecContext implements SpecContext {
private final List<Object> params = new ArrayList<>();
@Override
public String bind(Object value) {
params.add(value);
return "?";
}
void applyParameters(PreparedStatement ps) throws SQLException {
for (int i = 0; i < params.size(); i++) {
ps.setObject(i + 1, params.get(i));
}
}
int size() {
return params.size();
}
}
flash-extensions/flash-ext-data-jdbc/src/main/java/dev/relism/flash/ext/data/jdbc/JdbcTxManager.java
+126 -15
View File
@@ -9,6 +9,7 @@ import java.util.Objects;
public class JdbcTxManager implements TxManager {
private static final TxResourceKey JDBC_STATUS_KEY = TxResourceKey.of("jdbc.tx.status");
private static final TxResourceKey JDBC_SUSPENDED_KEY = TxResourceKey.of("jdbc.tx.suspended");
private final DataSource ds;
@@ -16,6 +17,18 @@ public class JdbcTxManager implements TxManager {
this.ds = Objects.requireNonNull(ds);
}
/** Closes the data source when it is closeable, as a pool is; a plain {@code DataSource} holds nothing to release. */
@Override
public void close() {
if (ds instanceof AutoCloseable closeable) {
try {
closeable.close();
} catch (Exception e) {
throw new IllegalStateException("Failed to close the data source", e);
}
}
}
@Override
public TxStatus begin(TxDefinition definition) {
return switch (definition.propagation()) {
@@ -23,22 +36,30 @@ public class JdbcTxManager implements TxManager {
? joinExisting(definition)
: beginNew(definition);
case REQUIRES_NEW -> beginNew(definition);
case SUPPORTS -> ResourceRegistry.isBound(JDBC_STATUS_KEY)
? joinExisting(definition)
: noOp(definition);
case MANDATORY -> {
if (!ResourceRegistry.isBound(JDBC_STATUS_KEY))
throw new IllegalStateException("MANDATORY: no active transaction");
yield joinExisting(definition);
}
case NOT_SUPPORTED -> throw new UnsupportedOperationException("NOT_SUPPORTED is not implemented");
case NOT_SUPPORTED -> {
JdbcTxStatus suspended = suspendIfNeeded();
yield noOp(definition, suspended);
}
};
}
private TxStatus beginNew(TxDefinition definition) {
Connection conn = null;
// Anything already registered belongs to an enclosing transaction this one is nested
// inside (or suspended over) — see ResourceRegistry#fireSynchronizations.
int synchronizationBaseline = ResourceRegistry.synchronizationCount();
JdbcTxStatus suspended = suspendIfNeeded();
boolean bound = false;
try {
JdbcTxStatus suspended = ResourceRegistry.getOrNull(JDBC_STATUS_KEY, JdbcTxStatus.class);
if (suspended != null) {
ResourceRegistry.unbind(JDBC_STATUS_KEY);
}
Connection conn = ds.getConnection();
conn = ds.getConnection();
conn.setAutoCommit(false);
if (definition.readOnly()) conn.setReadOnly(true);
if (definition.isolation() != TransactionIsolation.DEFAULT) {
@@ -49,12 +70,20 @@ public class JdbcTxManager implements TxManager {
true,
definition.readOnly(),
suspended,
new JdbcTxStatus.RollbackMarker()
new JdbcTxStatus.RollbackMarker(),
synchronizationBaseline
);
ResourceRegistry.bind(JDBC_STATUS_KEY, status);
bound = true;
return status;
} catch (SQLException e) {
silentClose(conn);
throw new TxException(e);
} finally {
if (!bound && suspended != null) {
ResourceRegistry.unbind(JDBC_SUSPENDED_KEY);
ResourceRegistry.bind(JDBC_STATUS_KEY, suspended);
}
}
}
@@ -63,62 +92,144 @@ public class JdbcTxManager implements TxManager {
if (definition.readOnly() && !existing.isReadOnly()) {
throw new TxException("Cannot join read-write tx as read-only");
}
// Baseline 0 is never read: a joined status isn't a new transaction, so commit()/rollback()
// hand it straight back to the transaction it joined without firing anything.
return new JdbcTxStatus(
existing.connection(),
false,
definition.readOnly(),
null,
existing.rollbackMarker()
existing.rollbackMarker(),
0
);
}
private TxStatus noOp(TxDefinition definition) {
return noOp(definition, null);
}
private TxStatus noOp(TxDefinition definition, JdbcTxStatus suspended) {
return new JdbcTxStatus(null, false, definition.readOnly(), suspended, new JdbcTxStatus.RollbackMarker(), 0);
}
private JdbcTxStatus suspendIfNeeded() {
JdbcTxStatus suspended = ResourceRegistry.getOrNull(JDBC_STATUS_KEY, JdbcTxStatus.class);
if (suspended != null) {
ResourceRegistry.unbind(JDBC_STATUS_KEY);
ResourceRegistry.bind(JDBC_SUSPENDED_KEY, suspended);
}
return suspended;
}
@Override
public void commit(TxStatus status) {
JdbcTxStatus s = (JdbcTxStatus) status;
if (!s.isNewTransaction()) {
resumeIfNeeded(s);
cleanupIfIdle();
return;
}
TxOutcome outcome = null;
try {
if (s.isRollbackOnly()) {
s.connection().rollback();
ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK);
return;
outcome = TxOutcome.ROLLED_BACK;
} else {
// Still inside the transaction, connection still bound: a beforeCommit callback
// can write through it and land in this same commit. Throwing from there vetoes
// the commit — see TxSynchronization.
ResourceRegistry.fireBeforeCommit(s.isReadOnly(), s.synchronizationBaseline());
s.connection().commit();
outcome = TxOutcome.COMMITTED;
}
s.connection().commit();
ResourceRegistry.fireSynchronizations(TxOutcome.COMMITTED);
} catch (SQLException e) {
throw new TxException(e);
TxException wrapped = new TxException(e);
outcome = rollbackAfterFailedCommit(s, wrapped);
throw wrapped;
} catch (RuntimeException e) {
outcome = rollbackAfterFailedCommit(s, e);
throw e;
} finally {
// Unbind the connection before firing, so a callback that opens its own transaction
// gets a fresh one instead of joining the connection that just committed — and fire
// before cleanupIfIdle(), whose ResourceRegistry.cleanup() drops the pending list.
cleanupAndResume(s);
if (outcome != null) ResourceRegistry.fireSynchronizations(outcome, s.synchronizationBaseline());
cleanupIfIdle();
}
}
/**
* Nothing was committed — a vetoing {@code beforeCommit}, or a commit that failed outright —
* so undo whatever the transaction had done and report {@code ROLLED_BACK} to the callbacks
* still queued behind it. A failure to roll back is attached to the exception already on its
* way out rather than replacing it: that one explains what actually went wrong.
*/
private static TxOutcome rollbackAfterFailedCommit(JdbcTxStatus s, Throwable propagating) {
try {
s.connection().rollback();
} catch (SQLException suppressed) {
propagating.addSuppressed(suppressed);
}
return TxOutcome.ROLLED_BACK;
}
@Override
public void rollback(TxStatus status) {
JdbcTxStatus s = (JdbcTxStatus) status;
if (!s.isNewTransaction()) {
s.markRollbackOnly();
resumeIfNeeded(s);
cleanupIfIdle();
return;
}
try {
s.connection().rollback();
ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK);
} catch (SQLException e) {
throw new TxException(e);
} finally {
// Same order as commit() above, for the same two reasons.
cleanupAndResume(s);
ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK, s.synchronizationBaseline());
cleanupIfIdle();
}
}
private void cleanupAndResume(JdbcTxStatus status) {
ResourceRegistry.unbind(JDBC_STATUS_KEY);
try {
status.connection().close();
if (status.connection() != null) {
status.connection().close();
}
} catch (SQLException ignored) {
}
resumeIfNeeded(status);
}
private void cleanupIfIdle() {
if (!ResourceRegistry.isBound(JDBC_STATUS_KEY) && !ResourceRegistry.isBound(JDBC_SUSPENDED_KEY)) {
ResourceRegistry.cleanup();
}
}
private void resumeIfNeeded(JdbcTxStatus status) {
JdbcTxStatus suspended = status.suspended();
if (suspended == null) {
suspended = ResourceRegistry.getOrNull(JDBC_SUSPENDED_KEY, JdbcTxStatus.class);
}
if (suspended != null) {
ResourceRegistry.unbind(JDBC_SUSPENDED_KEY);
ResourceRegistry.bind(JDBC_STATUS_KEY, suspended);
}
}
private void silentClose(Connection connection) {
if (connection == null) {
return;
}
try {
connection.close();
} catch (SQLException ignored) {
}
}
}
flash-extensions/flash-ext-data-jdbc/src/main/java/dev/relism/flash/ext/data/jdbc/JdbcTxStatus.java
+16 -3
View File
@@ -3,7 +3,6 @@ package dev.relism.flash.ext.data.jdbc;
import dev.relism.flash.ext.data.core.TxStatus;
import java.sql.Connection;
import java.util.Objects;
class JdbcTxStatus implements TxStatus {
static final class RollbackMarker {
@@ -15,19 +14,27 @@ class JdbcTxStatus implements TxStatus {
private final boolean readOnly;
private final JdbcTxStatus suspended;
private final RollbackMarker rollbackMarker;
private final int synchronizationBaseline;
// No requireNonNull on the connection: a SUPPORTS-without-a-transaction or a NOT_SUPPORTED
// status is deliberately connectionless (see JdbcTxManager#noOp), and rejecting null here
// turned both of those propagations into an NPE at begin() — the Hibernate manager has
// always allowed it. resource() reports the real mistake, asking a connectionless status for
// its connection, where it can name it.
JdbcTxStatus(
Connection connection,
boolean newTransaction,
boolean readOnly,
JdbcTxStatus suspended,
RollbackMarker rollbackMarker
RollbackMarker rollbackMarker,
int synchronizationBaseline
) {
this.connection = Objects.requireNonNull(connection);
this.connection = connection;
this.newTransaction = newTransaction;
this.readOnly = readOnly;
this.suspended = suspended;
this.rollbackMarker = rollbackMarker;
this.synchronizationBaseline = synchronizationBaseline;
}
@Override public boolean isNewTransaction() { return newTransaction; }
@@ -37,10 +44,16 @@ class JdbcTxStatus implements TxStatus {
@Override
public <R> R resource(Class<R> type) {
if (connection == null) {
throw new IllegalStateException("No connection bound to this transaction status");
}
return type.cast(connection);
}
Connection connection() { return connection; }
JdbcTxStatus suspended() { return suspended; }
RollbackMarker rollbackMarker() { return rollbackMarker; }
/** Index into {@code ResourceRegistry}'s synchronization list where this transaction's own callbacks start. */
int synchronizationBaseline() { return synchronizationBaseline; }
}
flash-extensions/flash-ext-data-jdbc/src/test/java/dev/relism/flash/ext/data/jdbc/JdbcTxManagerCloseTest.java
+20
View File
@@ -0,0 +1,20 @@
package dev.relism.flash.ext.data.jdbc;
import com.zaxxer.hikari.HikariDataSource;
import dev.relism.flash.ext.data.DataExtension;
import dev.relism.flash.extension.FlashApp;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;
class JdbcTxManagerCloseTest {
/** A pool outlives its app unless someone closes it; the data extension does, once requests have drained. */
@Test
void stoppingTheAppClosesThePool() {
HikariDataSource pool = new HikariDataSource();
pool.setJdbcUrl(TestDataSource.URL);
FlashApp.create(0).install(new DataExtension(new JdbcTxManager(pool))).start().stop().join();
assertTrue(pool.isClosed());
}
}
flash-extensions/flash-ext-data-jdbc/src/test/java/dev/relism/flash/ext/data/jdbc/JdbcTxManagerSynchronizationTest.java
+216
View File
@@ -0,0 +1,216 @@
package dev.relism.flash.ext.data.jdbc;
import dev.relism.flash.ext.data.core.*;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
/**
* Transaction synchronization semantics for the JDBC manager — the same contract {@code
* HibernateTxManagerSynchronizationTest} pins down for the Hibernate one, kept deliberately
* parallel: the two managers are interchangeable behind {@code TxManager}, so a callback must not
* observe a different lifecycle depending on which one is installed.
*/
class JdbcTxManagerSynchronizationTest {
private final JdbcTxManager manager = new JdbcTxManager(new TestDataSource());
@AfterEach
void cleanup() {
ResourceRegistry.clear();
}
/** Records which callbacks ran, in order — order is part of the contract, not just the fact they ran. */
private static final class Recorder implements TxSynchronization {
final List<String> calls = new ArrayList<>();
@Override public void beforeCommit(boolean readOnly) { calls.add("beforeCommit:" + readOnly); }
@Override public void afterCommit() { calls.add("afterCommit"); }
@Override public void afterRollback() { calls.add("afterRollback"); }
@Override public void afterCompletion(TxOutcome outcome) { calls.add("afterCompletion:" + outcome); }
}
private static final List<String> COMMITTED = List.of("beforeCommit:false", "afterCommit", "afterCompletion:COMMITTED");
private static final List<String> ROLLED_BACK = List.of("afterRollback", "afterCompletion:ROLLED_BACK");
@Test
void afterCommit_fires_on_commit() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(recorder);
manager.commit(tx);
assertEquals(COMMITTED, recorder.calls);
}
@Test
void afterRollback_fires_on_rollback() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(recorder);
manager.rollback(tx);
assertEquals(ROLLED_BACK, recorder.calls);
}
@Test
void commit_of_a_rollback_only_tx_rolls_back_without_running_beforeCommit() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
tx.markRollbackOnly();
ResourceRegistry.addSynchronization(recorder);
manager.commit(tx);
assertEquals(ROLLED_BACK, recorder.calls);
}
/** beforeCommit runs inside the transaction: connection still bound, nothing committed yet. */
@Test
void beforeCommit_runs_while_the_transaction_is_still_active() {
List<Connection> connectionSeen = new ArrayList<>();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
Connection connection = tx.resource(Connection.class);
ResourceRegistry.addSynchronization(new TxSynchronization() {
@Override
public void beforeCommit(boolean readOnly) {
// MANDATORY only succeeds while a transaction is bound — proof this runs inside it.
TxStatus joined = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.MANDATORY));
connectionSeen.add(joined.resource(Connection.class));
manager.commit(joined);
}
});
manager.commit(tx);
assertSame(connection, connectionSeen.get(0), "the same connection must still be bound, so writes land in this commit");
}
@Test
void beforeCommit_is_told_whether_the_transaction_is_read_only() {
Recorder readWrite = new Recorder();
TxStatus rw = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(readWrite);
manager.commit(rw);
Recorder readOnly = new Recorder();
TxStatus ro = manager.begin(TxDefinition.DEFAULTS.asReadOnly());
ResourceRegistry.addSynchronization(readOnly);
manager.commit(ro);
assertEquals("beforeCommit:false", readWrite.calls.get(0));
assertEquals("beforeCommit:true", readOnly.calls.get(0));
}
/** Throwing from beforeCommit is a veto: no commit, the rollback callbacks run, the exception propagates. */
@Test
void a_throwing_beforeCommit_vetoes_the_commit() {
Recorder recorder = new Recorder();
TxStatus tx = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(new TxSynchronization() {
@Override public void beforeCommit(boolean readOnly) { throw new IllegalStateException("veto"); }
});
ResourceRegistry.addSynchronization(recorder);
IllegalStateException thrown = assertThrows(IllegalStateException.class, () -> manager.commit(tx));
assertEquals("veto", thrown.getMessage());
assertEquals(ROLLED_BACK, recorder.calls, "the surviving callbacks must hear ROLLED_BACK, not silence");
}
/** Post-completion callbacks run after the committed connection is unbound, so opening a transaction gets a fresh one. */
@Test
void a_synchronization_may_open_its_own_transaction() {
List<Connection> connectionsSeen = new ArrayList<>();
List<Boolean> wasNewTransaction = new ArrayList<>();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
Connection committedConnection = outer.resource(Connection.class);
ResourceRegistry.addSynchronization(new TxSynchronization() {
@Override
public void afterCommit() {
TxStatus own = manager.begin(TxDefinition.DEFAULTS);
connectionsSeen.add(own.resource(Connection.class));
wasNewTransaction.add(own.isNewTransaction());
manager.commit(own);
}
});
manager.commit(outer);
assertEquals(1, connectionsSeen.size(), "the callback must have run");
assertEquals(List.of(true), wasNewTransaction, "must start its own transaction, not join the committed one");
assertNotSame(committedConnection, connectionsSeen.get(0));
}
@Test
void a_joined_commit_defers_synchronizations_to_the_outermost_commit() {
Recorder recorder = new Recorder();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRED));
ResourceRegistry.addSynchronization(recorder);
manager.commit(inner);
assertEquals(List.of(), recorder.calls, "the joined commit did not commit anything yet");
manager.commit(outer);
assertEquals(COMMITTED, recorder.calls);
}
@Test
void synchronizations_do_not_leak_into_the_next_transaction() {
Recorder recorder = new Recorder();
TxStatus first = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(recorder);
manager.commit(first);
recorder.calls.clear();
TxStatus second = manager.begin(TxDefinition.DEFAULTS);
manager.commit(second);
assertEquals(List.of(), recorder.calls);
}
@Test
void a_requires_new_commit_leaves_the_suspended_transactions_synchronizations_alone() {
Recorder outerSync = new Recorder();
Recorder innerSync = new Recorder();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(outerSync);
TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRES_NEW));
ResourceRegistry.addSynchronization(innerSync);
manager.commit(inner);
assertEquals(COMMITTED, innerSync.calls);
assertEquals(List.of(), outerSync.calls, "the outer transaction has not committed yet");
manager.commit(outer);
assertEquals(COMMITTED, outerSync.calls);
}
@Test
void a_requires_new_rollback_leaves_the_suspended_transactions_synchronizations_alone() {
Recorder outerSync = new Recorder();
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
ResourceRegistry.addSynchronization(outerSync);
TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRES_NEW));
manager.rollback(inner);
assertEquals(List.of(), outerSync.calls, "the outer transaction is still open");
manager.commit(outer);
assertEquals(COMMITTED, outerSync.calls);
}
}
flash-extensions/flash-ext-data-jdbc/src/test/java/dev/relism/flash/ext/data/jdbc/JdbcTxManagerTest.java
+29 -46
View File
@@ -4,15 +4,12 @@ import dev.relism.flash.ext.data.core.*;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import static org.junit.jupiter.api.Assertions.*;
class JdbcTxManagerTest {
private final JdbcTxManager manager = new JdbcTxManager(dataSource());
private final JdbcTxManager manager = new JdbcTxManager(new TestDataSource());
@AfterEach
void cleanup() {
@@ -53,52 +50,38 @@ class JdbcTxManagerTest {
manager.rollback(outer);
}
private static DataSource dataSource() {
return new DataSource() {
@Override
public Connection getConnection() throws SQLException {
return DriverManager.getConnection("jdbc:h2:mem:tx-jdbc;DB_CLOSE_DELAY=-1");
}
/**
* SUPPORTS without an active transaction yields a connectionless status — it must not be a
* transaction, and asking it for a connection must say so rather than NPE. Both propagations
* that produce one used to throw {@link NullPointerException} straight out of {@code begin()}.
*/
@Test
void supports_without_active_transaction_is_a_connectionless_no_op() {
TxStatus s = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.SUPPORTS));
@Override
public Connection getConnection(String username, String password) throws SQLException {
return DriverManager.getConnection("jdbc:h2:mem:tx-jdbc;DB_CLOSE_DELAY=-1", username, password);
}
assertFalse(s.isNewTransaction());
assertThrows(IllegalStateException.class, () -> s.resource(Connection.class));
assertDoesNotThrow(() -> manager.commit(s));
}
@Override
public <T> T unwrap(Class<T> iface) {
throw new UnsupportedOperationException();
}
@Test
void not_supported_suspends_the_active_transaction_and_restores_it_on_commit() {
TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
Connection outerConnection = outer.resource(Connection.class);
@Override
public boolean isWrapperFor(Class<?> iface) {
return false;
}
TxStatus suspended = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.NOT_SUPPORTED));
assertFalse(suspended.isNewTransaction());
assertThrows(IllegalStateException.class, () -> suspended.resource(Connection.class));
manager.commit(suspended);
@Override
public java.io.PrintWriter getLogWriter() {
throw new UnsupportedOperationException();
}
TxStatus rejoined = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRED));
assertSame(outerConnection, rejoined.resource(Connection.class), "the suspended transaction must be back");
manager.rollback(outer);
}
@Override
public void setLogWriter(java.io.PrintWriter out) {
throw new UnsupportedOperationException();
}
@Override
public void setLoginTimeout(int seconds) {
throw new UnsupportedOperationException();
}
@Override
public int getLoginTimeout() {
return 0;
}
@Override
public java.util.logging.Logger getParentLogger() {
throw new UnsupportedOperationException();
}
};
@Test
void mandatory_without_active_transaction_is_rejected() {
assertThrows(IllegalStateException.class,
() -> manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.MANDATORY)));
}
}
flash-extensions/flash-ext-data-jdbc/src/test/java/dev/relism/flash/ext/data/jdbc/TestDataSource.java
+37
View File
@@ -0,0 +1,37 @@
package dev.relism.flash.ext.data.jdbc;
import javax.sql.DataSource;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Logger;
/**
* A bare in-memory H2 {@link DataSource} — one fresh connection per {@code getConnection()}, which
* is all {@code JdbcTxManager} needs to exercise real commit/rollback and suspension. Every method
* outside the two {@code getConnection} overloads throws: nothing under test calls them, and a
* loud failure beats a silent stub if that ever changes.
*/
final class TestDataSource implements DataSource {
static final String URL = "jdbc:h2:mem:tx-jdbc;DB_CLOSE_DELAY=-1";
@Override
public Connection getConnection() throws SQLException {
return DriverManager.getConnection(URL);
}
@Override
public Connection getConnection(String username, String password) throws SQLException {
return DriverManager.getConnection(URL, username, password);
}
@Override public <T> T unwrap(Class<T> iface) { throw new UnsupportedOperationException(); }
@Override public boolean isWrapperFor(Class<?> iface) { return false; }
@Override public PrintWriter getLogWriter() { throw new UnsupportedOperationException(); }
@Override public void setLogWriter(PrintWriter out) { throw new UnsupportedOperationException(); }
@Override public void setLoginTimeout(int seconds) { throw new UnsupportedOperationException(); }
@Override public int getLoginTimeout() { return 0; }
@Override public Logger getParentLogger() { throw new UnsupportedOperationException(); }
}
flash-extensions/flash-ext-jackson-core/README.md
+78
View File
@@ -0,0 +1,78 @@
# flash-ext-jackson-core
What every Jackson data format shares. Applications do not install this module directly: they
install a format — [`flash-ext-jackson-json`](../flash-ext-jackson-json),
[`flash-ext-jackson-xml`](../flash-ext-jackson-xml) — and get all of this with it.
## Why there is a core at all
Every Jackson data format is the same databind model behind a different factory: `XmlMapper`,
`YAMLMapper` and `CBORMapper` are all `ObjectMapper`s. So the annotations on a type, the
constraints its fields declare and the schema it publishes are the same whatever writes it. Only
the mapper and the content type differ, and that is all a format module has to say.
## Codec
One mapper, in the shape a handler needs it.
| | |
|---|---|
| `body(Request, Class<T>)` | Parses the body and verifies its constraints |
| `write(Response, Object)` | Serializes and sets the format's content type |
| `writeView(Response, Object, Class<?>)` | The same, through a Jackson `@JsonView` |
| `mapper()` | The `ObjectMapper` itself, for everything else |
`body` reads straight off the request's stream, which Flash reuses per connection: the body is
never buffered into an array to be handed over. A malformed body is a 400, a body that breaks a
constraint is a 422, and neither reaches the handler.
## Constraints
A body is checked against the `jakarta.validation` annotations its own type declares — nothing to
install, nothing to call:
```java
public record NewUser(@NotBlank @Size(max = 80) String name, @Email String email, @Min(18) int age) {}
```
Supported: `@NotNull`, `@NotBlank`, `@NotEmpty`, `@Size`, `@Min`, `@Max`, `@Email`, `@Pattern`.
Jakarta semantics: only `@NotNull` rejects null, every other constraint passes it.
A failure reads `<field> <message>`, and the message is the constraint's own when it sets one —
which is how the person who sent the request is told something better than a regex:
```java
@Pattern(regexp = "[A-Za-z0-9_][A-Za-z0-9_.-]{0,254}", message = "uses up to 255 letters, digits, _, . and -")
String key
```
```json
{"error": "key uses up to 255 letters, digits, _, . and -", "status": 422}
```
The constraints of a type are compiled the first time it is seen and kept in a `ClassValue`,
beside the class itself — no map, no lock. A check reads the field through an exact-signature
`MethodHandle`: no boxing, no argument array, no iterator, and nothing allocated at all unless
something fails. A type that declares no constraints compiles to a validator that does nothing.
Verify a value built by hand with `Validator.check(value)`.
`flash-ext-openapi` reads the same annotations to publish `minLength`, `maximum`, `pattern` and
the required fields, so a rule is written once and both enforced and documented.
## Writing a format module
```java
public final class Yaml extends Codec {
public Yaml(YAMLMapper mapper) { super(mapper, ContentType.TEXT_YAML); }
}
@Consumes(ContentType.TEXT_YAML)
public abstract class YamlHandler<B> extends JacksonHandler<B> {
@Inject private Yaml yaml;
@Override protected Codec codec() { return yaml; }
}
```
Plus an extension that provides the codec and, for outbound bodies,
`Marshalling.of(mapper, contentType)`. That is the whole of it.
flash-extensions/flash-ext-jackson-core/pom.xml
+47
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@@ -0,0 +1,47 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-jackson-core</artifactId>
<name>flash-ext-jackson-core</name>
<description>What every Jackson data format shares: the codec, the body handler and the constraints a body is checked against.</description>
<dependencies>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
</dependency>
<!-- The constraint annotations a body is checked against; no implementation, no transitives. -->
<dependency>
<groupId>jakarta.validation</groupId>
<artifactId>jakarta.validation-api</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
flash-extensions/flash-ext-jackson-core/src/main/java/dev/relism/flash/ext/jackson/Check.java
+76
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@@ -0,0 +1,76 @@
package dev.relism.flash.ext.jackson;
import java.lang.invoke.MethodHandle;
import java.util.regex.Pattern;
/**
* One constraint, compiled. Flattened into an opcode plus its operands rather than a class per
* constraint type: the check loop becomes a {@code tableswitch} over a monomorphic array instead
* of a megamorphic virtual call, and a passing check touches no allocation at all.
*
* <p>Field access goes through a {@link MethodHandle} adapted at compile time to an exact
* signature — {@code (Object)Object} for reference fields, {@code (Object)long} for primitive
* integrals — so {@code invokeExact} neither boxes nor allocates an argument array the way
* {@code Field.get} and {@code Method.invoke} do.
*/
final class Check {
static final int NOT_NULL = 0;
static final int NOT_BLANK = 1;
static final int NOT_EMPTY = 2;
static final int SIZE = 3;
static final int RANGE_PRIMITIVE = 4;
static final int RANGE_BOXED = 5;
static final int EMAIL = 6;
static final int PATTERN = 7;
final int op;
final String field;
/** Pre-rendered at compile time, so even the failure path formats nothing. */
final String message;
/** {@code (Object)Object} — set for every op except {@link #RANGE_PRIMITIVE}. */
final MethodHandle ref;
/** {@code (Object)long} — set only for {@link #RANGE_PRIMITIVE}. */
final MethodHandle num;
final int min;
final int max;
final long lo;
final long hi;
final Pattern pattern;
private Check(int op, String field, String message, MethodHandle ref, MethodHandle num,
int min, int max, long lo, long hi, Pattern pattern) {
this.op = op;
this.field = field;
this.message = message;
this.ref = ref;
this.num = num;
this.min = min;
this.max = max;
this.lo = lo;
this.hi = hi;
this.pattern = pattern;
}
static Check reference(int op, String field, String message, MethodHandle ref) {
return new Check(op, field, message, ref, null, 0, 0, 0, 0, null);
}
static Check size(String field, String message, MethodHandle ref, int min, int max) {
return new Check(SIZE, field, message, ref, null, min, max, 0, 0, null);
}
static Check rangePrimitive(String field, String message, MethodHandle num, long lo, long hi) {
return new Check(RANGE_PRIMITIVE, field, message, null, num, 0, 0, lo, hi, null);
}
static Check rangeBoxed(String field, String message, MethodHandle ref, long lo, long hi) {
return new Check(RANGE_BOXED, field, message, ref, null, 0, 0, lo, hi, null);
}
static Check pattern(String field, String message, MethodHandle ref, Pattern pattern) {
return new Check(PATTERN, field, message, ref, null, 0, 0, 0, 0, pattern);
}
}
flash-extensions/flash-ext-jackson-core/src/main/java/dev/relism/flash/ext/jackson/Codec.java
+72
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@@ -0,0 +1,72 @@
package dev.relism.flash.ext.jackson;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.exceptions.HttpException;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.models.Request;
import dev.relism.flash.models.Response;
/**
* One Jackson mapper, in the shape a handler needs it.
*
* <p>Every Jackson data format is the same databind model behind a different factory, so this is
* the whole of what a format module has to say: which mapper, and which content type it writes.
* What the annotations mean, what a body is checked against and how a type is described are the
* same for all of them.
*
* <p>Retrieve it once at boot — {@code @Inject private Json json;} — and call it on the hot path.
* The underlying {@link ObjectMapper} is thread-safe once configured.
*/
public abstract class Codec {
private final ObjectMapper mapper;
private final ContentType contentType;
protected Codec(ObjectMapper mapper, ContentType contentType) {
this.mapper = mapper;
this.contentType = contentType;
}
/**
* Reads the request body as {@code type} and verifies its constraints.
*
* <p>Read straight off the request's stream, which Flash reuses per connection: nothing
* buffers the body to hand it over. A type that declares no constraints is not checked at all.
*
* @throws HttpException 400 if the body cannot be parsed as {@code type}
* @throws ValidationException 422 if it parses but violates a constraint
*/
public <T> T body(Request request, Class<T> type) throws Exception {
T value;
try {
value = mapper.readValue(request.body().stream(), type);
} catch (JsonProcessingException malformed) {
throw HttpException.badRequest("Invalid request body: " + malformed.getOriginalMessage());
}
Validator.of(type).verify(value);
return value;
}
/** Serializes {@code value} and sets this codec's content type on the response. */
public String write(Response response, Object value) throws Exception {
response.type(contentType);
return mapper.writeValueAsString(value);
}
/** Like {@link #write}, restricted to the fields visible under a Jackson {@code @JsonView}. */
public String writeView(Response response, Object value, Class<?> view) throws Exception {
response.type(contentType);
return mapper.writerWithView(view).writeValueAsString(value);
}
/** What this codec writes, for a handler that sets the response type itself. */
public ContentType contentType() {
return contentType;
}
/** The mapper itself, for everything these methods do not cover. */
public ObjectMapper mapper() {
return mapper;
}
}
flash-extensions/flash-ext-jackson-core/src/main/java/dev/relism/flash/ext/jackson/JacksonHandler.java
+33
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@@ -0,0 +1,33 @@
package dev.relism.flash.ext.jackson;
import dev.relism.flash.models.BodyHandler;
import dev.relism.flash.models.Request;
/**
* A handler whose body one Jackson format parses and whose constraints are checked before it
* arrives.
*
* <p>Format modules extend this and name their codec — {@code JsonHandler}, {@code XmlHandler}.
* An application extends those, never this one.
*
* @param <B> the body type, which is also what the published OpenAPI document describes
*/
public abstract class JacksonHandler<B> extends BodyHandler<B> {
private final Class<B> type = bodyType();
protected JacksonHandler() {
if (type == null) {
throw new IllegalStateException(getClass().getSimpleName()
+ " extends a body handler without naming its body type — write it as Handler<YourBody>");
}
}
/** The format this handler speaks. Injected by the subclass, resolved once at boot. */
protected abstract Codec codec();
@Override
protected final B body(Request request) throws Exception {
return codec().body(request, type);
}
}
flash-extensions/flash-ext-jackson-core/src/main/java/dev/relism/flash/ext/jackson/Marshalling.java
+32
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@@ -0,0 +1,32 @@
package dev.relism.flash.ext.jackson;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.models.Response;
import dev.relism.flash.routing.Middleware;
/**
* Turns whatever a handler returns into a serialized body.
*
* <p>Pass-through for what is already a response: {@code null}, a {@link Response}, a
* {@code byte[]} or a {@link CharSequence}. Everything else is serialized straight to bytes.
*/
public final class Marshalling {
private Marshalling() {}
public static Middleware of(ObjectMapper mapper, ContentType contentType) {
return next -> (req, res) -> {
Object out = next.handle(req, res);
if (out == null || out instanceof Response || out instanceof byte[] || out instanceof CharSequence) return out;
res.type(contentType);
try {
return mapper.writeValueAsBytes(out);
} catch (JsonProcessingException failure) {
throw new IllegalStateException("Could not serialize " + out.getClass().getName(), failure);
}
};
}
}
flash-extensions/flash-ext-jackson-core/src/main/java/dev/relism/flash/ext/jackson/ValidationException.java
+39
View File
@@ -0,0 +1,39 @@
package dev.relism.flash.ext.jackson;
import dev.relism.flash.exceptions.HttpException;
import java.util.List;
/**
* Raised when a value fails its constraints. Extends {@link HttpException} with status 422, so
* Flash's default exception handler renders it without this extension registering anything.
*
* <p>Allocated only on failure — a passing validation constructs nothing.
*/
public final class ValidationException extends HttpException {
private final transient List<Violation> violations;
public ValidationException(List<Violation> violations) {
super(422, describe(violations));
this.violations = List.copyOf(violations);
}
/** The individual failures, in field declaration order. */
public List<Violation> violations() {
return violations;
}
private static String describe(List<Violation> violations) {
StringBuilder out = new StringBuilder(32 * violations.size());
for (int i = 0; i < violations.size(); i++) {
if (i > 0) out.append("; ");
Violation v = violations.get(i);
out.append(v.field()).append(' ').append(v.message());
}
return out.toString();
}
/** One failed constraint. */
public record Violation(String field, String message) {}
}
flash-extensions/flash-ext-jackson-core/src/main/java/dev/relism/flash/ext/jackson/Validator.java
+255
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@@ -0,0 +1,255 @@
package dev.relism.flash.ext.jackson;
import jakarta.validation.constraints.Email;
import jakarta.validation.constraints.Max;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;
import jakarta.validation.constraints.Pattern;
import jakarta.validation.constraints.Size;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
/**
* The compiled constraints of one type. Built once per class and reused for every request.
*
* <p>{@link #verify} allocates nothing when a value passes: the loop walks an array (no iterator),
* reads fields through exact-signature {@link MethodHandle}s (no boxing, no argument array), and
* compares against operands resolved at compile time. The violation list and the exception are
* constructed only once something actually fails.
*/
public final class Validator {
private static final Check[] NONE = new Check[0];
/**
* One compiled validator per type, kept beside the class itself: no map lookup, no lock, and
* the entry is collected with the class rather than pinning it.
*/
private static final ClassValue<Validator> COMPILED = new ClassValue<>() {
@Override protected Validator computeValue(Class<?> type) {
return compile(type);
}
};
private final Check[] checks;
private Validator(Check[] checks) {
this.checks = checks;
}
/** The constraints of {@code type}, compiled the first time it is seen and reused after. */
public static Validator of(Class<?> type) {
return COMPILED.get(type);
}
/**
* Verifies a value against its own type's constraints.
*
* @return {@code value}, so it can be used inline
* @throws ValidationException 422, listing every failure
*/
public static <T> T check(T value) {
of(value.getClass()).verify(value);
return value;
}
/** True when the type declares no constraints at all — {@link #verify} is then a no-op. */
public boolean isEmpty() {
return checks.length == 0;
}
/**
* Verifies every constraint on {@code target}.
*
* @throws ValidationException with all failures, never just the first
*/
public void verify(Object target) {
List<ValidationException.Violation> failures = null;
for (Check check : checks) {
if (passes(check, target)) continue;
if (failures == null) failures = new ArrayList<>(4);
failures.add(new ValidationException.Violation(check.field, check.message));
}
if (failures != null) throw new ValidationException(failures);
}
private static boolean passes(Check check, Object target) {
try {
if (check.op == Check.RANGE_PRIMITIVE) {
long value = (long) check.num.invokeExact(target);
return value >= check.lo && value <= check.hi;
}
Object value = (Object) check.ref.invokeExact(target);
// Jakarta semantics: only @NotNull rejects null; every other constraint passes it.
return switch (check.op) {
case Check.NOT_NULL -> value != null;
case Check.NOT_BLANK -> value instanceof String text && !text.isBlank();
case Check.NOT_EMPTY -> value != null && sizeOf(value) > 0;
case Check.SIZE -> value == null || withinSize(check, value);
case Check.RANGE_BOXED -> value == null || withinRange(check, (Number) value);
case Check.EMAIL -> value == null || (value instanceof String text && isEmail(text));
case Check.PATTERN -> value == null
|| (value instanceof String text && check.pattern.matcher(text).matches());
default -> true;
};
} catch (Throwable failure) {
throw new IllegalStateException("Could not read " + check.field + " for validation", failure);
}
}
private static boolean withinSize(Check check, Object value) {
int size = sizeOf(value);
return size >= check.min && size <= check.max;
}
private static boolean withinRange(Check check, Number value) {
long asLong = value.longValue();
return asLong >= check.lo && asLong <= check.hi;
}
/** No copies: every branch reads a length the object already knows. */
private static int sizeOf(Object value) {
if (value instanceof CharSequence text) return text.length();
if (value instanceof Collection<?> items) return items.size();
if (value instanceof Map<?, ?> entries) return entries.size();
if (value instanceof Object[] array) return array.length;
return 1;
}
/**
* Structural check rather than a regex: {@code Pattern.matcher} allocates a matcher, an int
* array and a group array on every call, which is exactly the per-request cost this module
* exists to avoid. {@code indexOf} allocates nothing.
*
* <p>Accepts what a mail server would plausibly route and rejects the shapes people actually
* typo. Deliverability is the confirmation mail's job, not a validator's.
*/
private static boolean isEmail(String value) {
int at = value.indexOf('@');
if (at <= 0 || at == value.length() - 1) return false;
if (value.indexOf('@', at + 1) >= 0) return false;
int dot = value.indexOf('.', at + 2);
return dot > 0 && dot < value.length() - 1 && value.indexOf(' ') < 0;
}
// ── Compilation ──────────────────────────────────────────────────────────
/**
* Compiles {@code type}'s constraints once.
*
* <p>Reads declared fields rather than record accessors: a constraint on a record component
* propagates to the backing field, so records and plain classes need one code path, not two.
*/
static Validator compile(Class<?> type) {
MethodHandles.Lookup lookup;
try {
lookup = MethodHandles.privateLookupIn(type, MethodHandles.lookup());
} catch (IllegalAccessException denied) {
throw new IllegalStateException(
"Cannot read " + type.getName() + " for validation — open its module or package", denied);
}
List<Check> checks = new ArrayList<>();
for (Field field : type.getDeclaredFields()) {
if (Modifier.isStatic(field.getModifiers())) continue;
MethodHandle getter;
try {
getter = lookup.unreflectGetter(field);
} catch (IllegalAccessException denied) {
continue;
}
compileField(field, getter, checks);
}
return new Validator(checks.isEmpty() ? NONE : checks.toArray(new Check[0]));
}
private static void compileField(Field field, MethodHandle getter, List<Check> checks) {
String name = field.getName();
Class<?> type = field.getType();
MethodHandle ref = type.isPrimitive() ? null : asReference(getter);
NotNull notNull = field.getAnnotation(NotNull.class);
if (notNull != null && ref != null)
checks.add(Check.reference(Check.NOT_NULL, name, said(notNull.message(), "must not be null"), ref));
NotBlank notBlank = field.getAnnotation(NotBlank.class);
if (notBlank != null && ref != null)
checks.add(Check.reference(Check.NOT_BLANK, name, said(notBlank.message(), "must not be blank"), ref));
NotEmpty notEmpty = field.getAnnotation(NotEmpty.class);
if (notEmpty != null && ref != null)
checks.add(Check.reference(Check.NOT_EMPTY, name, said(notEmpty.message(), "must not be empty"), ref));
Size size = field.getAnnotation(Size.class);
if (size != null && ref != null)
checks.add(Check.size(name, said(size.message(), sizeMessage(size)), ref, size.min(), size.max()));
Min min = field.getAnnotation(Min.class);
Max max = field.getAnnotation(Max.class);
if (min != null || max != null) {
long lo = min != null ? min.value() : Long.MIN_VALUE;
long hi = max != null ? max.value() : Long.MAX_VALUE;
String message = said(min != null ? min.message() : max.message(), rangeMessage(min, max));
if (isIntegralPrimitive(type)) {
checks.add(Check.rangePrimitive(name, message, asLong(getter), lo, hi));
} else if (Number.class.isAssignableFrom(type) && ref != null) {
checks.add(Check.rangeBoxed(name, message, ref, lo, hi));
}
}
Email email = field.getAnnotation(Email.class);
if (email != null && ref != null)
checks.add(Check.reference(Check.EMAIL, name, said(email.message(), "must be a well-formed email address"), ref));
Pattern pattern = field.getAnnotation(Pattern.class);
if (pattern != null && ref != null) {
// ponytail: the one allocating check — Pattern.matcher() per call. The regex itself is
// compiled once here; swap for a structural check if a hot route ever needs it.
checks.add(Check.pattern(name, said(pattern.message(), "must match " + pattern.regexp()), ref,
java.util.regex.Pattern.compile(pattern.regexp())));
}
}
private static boolean isIntegralPrimitive(Class<?> type) {
return type == int.class || type == long.class || type == short.class || type == byte.class;
}
private static MethodHandle asReference(MethodHandle getter) {
return getter.asType(MethodType.methodType(Object.class, Object.class));
}
private static MethodHandle asLong(MethodHandle getter) {
return getter.asType(MethodType.methodType(long.class, Object.class));
}
/**
* What a failure says: the constraint's own {@code message} when it sets one, and otherwise a
* plain description of the rule. Jakarta's defaults are bundle keys in braces, and a key is
* not something to put in front of whoever sent the request.
*/
private static String said(String message, String otherwise) {
return message == null || message.isBlank() || message.startsWith("{") ? otherwise : message;
}
private static String sizeMessage(Size size) {
if (size.min() == 0) return "size must be at most " + size.max();
if (size.max() == Integer.MAX_VALUE) return "size must be at least " + size.min();
return "size must be between " + size.min() + " and " + size.max();
}
private static String rangeMessage(Min min, Max max) {
if (min == null) return "must be at most " + max.value();
if (max == null) return "must be at least " + min.value();
return "must be between " + min.value() + " and " + max.value();
}
}
flash-extensions/flash-ext-jackson-core/src/test/java/dev/relism/flash/ext/jackson/ValidatorTest.java
+128
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@@ -0,0 +1,128 @@
package dev.relism.flash.ext.jackson;
import jakarta.validation.constraints.Email;
import jakarta.validation.constraints.Max;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;
import jakarta.validation.constraints.Pattern;
import jakarta.validation.constraints.Size;
import org.junit.jupiter.api.Test;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
class ValidatorTest {
record CreateUser(
@NotBlank @Size(max = 8) String name,
@Email String email,
@Min(18) @Max(120) int age,
@NotNull String role) {}
record Boxed(@Min(1) Integer count) {}
record Sized(@NotEmpty List<String> tags, @Size(min = 2, max = 4) String code) {}
record Patterned(@Pattern(regexp = "[a-z]+") String slug) {}
record Plain(String anything) {}
private static ValidationException failureOf(Object value) {
return assertThrows(ValidationException.class, () -> Validator.compile(value.getClass()).verify(value));
}
@Test
void aValidValuePasses() {
assertDoesNotThrow(() ->
Validator.compile(CreateUser.class).verify(new CreateUser("alice", "a@b.com", 30, "admin")));
}
@Test
void reportsEveryViolationNotJustTheFirst() {
ValidationException failure = failureOf(new CreateUser(" ", "nope", 5, null));
assertEquals(List.of("name", "email", "age", "role"),
failure.violations().stream().map(ValidationException.Violation::field).toList());
}
@Test
void violationsCarryFieldAndMessage() {
ValidationException failure = failureOf(new CreateUser("alice", "a@b.com", 5, "admin"));
assertEquals(1, failure.violations().size());
assertEquals("age", failure.violations().get(0).field());
assertEquals("must be between 18 and 120", failure.violations().get(0).message());
assertEquals(422, failure.status());
assertEquals("age must be between 18 and 120", failure.getMessage());
}
@Test
void sizeCountsCharactersWithoutCopying() {
assertEquals("name", failureOf(new CreateUser("far-too-long", "a@b.com", 30, "x"))
.violations().get(0).field());
}
@Test
void onlyNotNullRejectsNull() {
// @Email, @Size and @Min all accept null per Jakarta semantics; @NotNull is the one that does not.
ValidationException failure = failureOf(new CreateUser("alice", null, 30, null));
assertEquals(List.of("role"),
failure.violations().stream().map(ValidationException.Violation::field).toList());
}
@Test
void boxedNumbersUseTheReferencePathAndTolerateNull() {
assertDoesNotThrow(() -> Validator.compile(Boxed.class).verify(new Boxed(null)));
assertEquals("count", failureOf(new Boxed(0)).violations().get(0).field());
}
@Test
void sizeAppliesToCollectionsAndStrings() {
assertDoesNotThrow(() -> Validator.compile(Sized.class).verify(new Sized(List.of("a"), "abc")));
ValidationException failure = failureOf(new Sized(List.of(), "x"));
assertEquals(List.of("tags", "code"),
failure.violations().stream().map(ValidationException.Violation::field).toList());
}
@Test
void patternIsAnchoredLikeJakarta() {
assertDoesNotThrow(() -> Validator.compile(Patterned.class).verify(new Patterned("abc")));
assertEquals("slug", failureOf(new Patterned("Abc1")).violations().get(0).field());
}
@Test
void emailAcceptsPlausibleAddressesAndRejectsTypos() {
assertDoesNotThrow(() ->
Validator.compile(CreateUser.class).verify(new CreateUser("a", "first.last@sub.example.co", 20, "x")));
for (String bad : List.of("no-at", "@leading.com", "trailing@", "two@@at.com", "no dots@x", "a@b")) {
assertThrows(ValidationException.class,
() -> Validator.compile(CreateUser.class).verify(new CreateUser("a", bad, 20, "x")),
bad);
}
}
@Test
void aTypeWithNoConstraintsCompilesToANoOp() {
Validator validator = Validator.compile(Plain.class);
assertTrue(validator.isEmpty());
assertDoesNotThrow(() -> validator.verify(new Plain(null)));
}
record Keyed(@jakarta.validation.constraints.Pattern(regexp = "[a-z.]+",
message = "uses lowercase letters and dots") String key) {}
@org.junit.jupiter.api.Test
void a_constraint_says_what_it_wants_in_its_own_words() {
ValidationException refused = org.junit.jupiter.api.Assertions.assertThrows(
ValidationException.class, () -> Validator.check(new Keyed("Not A Key")));
org.junit.jupiter.api.Assertions.assertEquals("key uses lowercase letters and dots", refused.getMessage());
}
}
flash-extensions/flash-ext-jackson-json/README.md
+60
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@@ -0,0 +1,60 @@
# flash-ext-jackson-json
JSON bodies and JSON responses.
## Install
```java
JsonExtension json = new JsonExtension();
FlashApp.create(8080)
.install(json)
.use(json.auto())
.scan("com.acme.handlers")
.startAndBlock();
```
The default mapper discovers the modules on the classpath (Java Time among them) and writes dates
as ISO strings; `new JsonExtension(mapper)` takes one of your own. `auto()` serializes whatever a
handler returns, leaving alone what is already a response: `null`, a `Response`, a `byte[]` or a
`CharSequence`.
## A handler with a body
The body type is the handler's type argument, and that is the whole declaration — it is also what
the OpenAPI document describes and what the constraints are read from:
```java
@POST("/users")
public final class CreateUser extends JsonHandler<NewUser> {
@Inject private UserService users;
@Override protected Object handle(Request req, Response res, NewUser body) {
return users.create(body);
}
}
```
A malformed body never reaches it (400), nor does one that breaks a constraint (422).
## A handler that reads it itself
```java
public final class Import extends RequestHandler {
@Inject private Json json;
@Override public Object handle(Request req, Response res) throws Exception {
return archive.store(json.body(req, Manifest.class));
}
}
```
`Json` is the [`Codec`](../flash-ext-jackson-core) for `application/json`: `body`, `write`,
`writeView`, `mapper`.
## Notes
- One mapper per application (or per scope), shared by every handler; `ObjectMapper` is
thread-safe once configured.
- Install `flash-ext-jackson-xml` beside this one when an application speaks both: a route picks
its format by the handler it extends, not by negotiation.
flash-extensions/flash-ext-jackson-json/pom.xml
+40
View File
@@ -0,0 +1,40 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-jackson-json</artifactId>
<name>flash-ext-jackson-json</name>
<description>JSON bodies and responses: the Json codec, JsonHandler and the marshalling middleware.</description>
<dependencies>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-ext-jackson-core</artifactId>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-testing</artifactId>
<scope>test</scope>
</dependency>
<!-- The constraints a body declares are described by the published document too. -->
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-ext-openapi</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
flash-extensions/flash-ext-jackson-json/src/main/java/dev/relism/flash/ext/jackson/json/Json.java
+27
View File
@@ -0,0 +1,27 @@
package dev.relism.flash.ext.jackson.json;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.ext.jackson.Codec;
import dev.relism.flash.http.ContentType;
/**
* JSON in and out, checked against the body type's own constraints.
*
* <pre>{@code
* public final class CreateItem extends RequestHandler {
* @Inject private Json json;
*
* @Override public Object handle(Request req, Response res) throws Exception {
* return items.create(json.body(req, NewItem.class));
* }
* }
* }</pre>
*
* <p>A handler whose whole body is one type has nothing to write at all: see {@link JsonHandler}.
*/
public final class Json extends Codec {
public Json(ObjectMapper mapper) {
super(mapper, ContentType.JSON);
}
}
flash-extensions/flash-ext-jackson-json/src/main/java/dev/relism/flash/ext/jackson/json/JsonExtension.java
+50
View File
@@ -0,0 +1,50 @@
package dev.relism.flash.ext.jackson.json;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.json.JsonMapper;
import dev.relism.flash.ext.jackson.Marshalling;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.extension.FlashExtension;
import dev.relism.flash.extension.FlashRegistrar;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.routing.Middleware;
/**
* JSON for an application: the {@link Json} codec, the mapper behind it, and the middleware that
* serializes whatever a handler returns.
*
* <pre>{@code
* JsonExtension json = new JsonExtension();
* app.install(json).use(json.auto());
* }</pre>
*
* <p>The default mapper discovers the modules on the classpath (Java Time among them) and writes
* dates as ISO strings. Hand it a mapper of your own to decide otherwise.
*/
public class JsonExtension implements FlashExtension {
private final ObjectMapper mapper;
public JsonExtension() {
this(JsonMapper.builder()
.findAndAddModules()
.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
.build());
}
public JsonExtension(ObjectMapper mapper) {
this.mapper = mapper;
}
/** Serializes what a handler returns, unless it already returned a response, bytes or text. */
public Middleware auto() {
return Marshalling.of(mapper, ContentType.JSON);
}
@Override
public void configure(FlashRegistrar<?> app, FlashContext ctx) {
ctx.provide(Json.class, new Json(mapper));
ctx.provide(ObjectMapper.class, mapper);
}
}
flash-extensions/flash-ext-jackson-json/src/main/java/dev/relism/flash/ext/jackson/json/JsonHandler.java
+35
View File
@@ -0,0 +1,35 @@
package dev.relism.flash.ext.jackson.json;
import dev.relism.flash.ext.jackson.Codec;
import dev.relism.flash.ext.jackson.JacksonHandler;
import dev.relism.flash.extension.Inject;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.routing.Consumes;
/**
* A handler that takes a JSON body of one type.
*
* <pre>{@code
* @POST("/users")
* public final class CreateUser extends JsonHandler<NewUser> {
* @Inject private UserService users;
*
* @Override protected Object handle(Request req, Response res, NewUser body) {
* return users.create(body);
* }
* }
* }</pre>
*
* <p>The body is read off the request stream, verified against the constraints its type declares,
* and handed over. A malformed body is a 400, a body that breaks a constraint is a 422, and
* neither ever reaches the handler. The published OpenAPI document describes the same type.
*/
@Consumes(ContentType.JSON)
public abstract class JsonHandler<B> extends JacksonHandler<B> {
@Inject private Json json;
@Override protected final Codec codec() {
return json;
}
}
flash-extensions/flash-ext-jackson-json/src/test/java/dev/relism/flash/ext/jackson/json/ConstraintsInTheDocumentTest.java
+67
View File
@@ -0,0 +1,67 @@
package dev.relism.flash.ext.jackson.json;
import dev.relism.flash.ext.jackson.json.JsonExtension;
import dev.relism.flash.ext.openapi.APIResponse;
import dev.relism.flash.ext.openapi.ApiOperation;
import dev.relism.flash.ext.openapi.Content;
import dev.relism.flash.ext.openapi.OpenApiExtension;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.models.Request;
import dev.relism.flash.models.RequestHandler;
import dev.relism.flash.models.Response;
import dev.relism.flash.routing.GET;
import dev.relism.flash.testing.FlashTest;
import jakarta.validation.constraints.Email;
import jakarta.validation.constraints.Max;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.Size;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.RegisterExtension;
/**
* Constraints are declared once and read twice: the validator enforces them, the published schema
* describes them. Nothing registers this bridge — flash-ext-openapi picks the annotations up on
* its own when they are on the classpath.
*/
class ConstraintsInTheDocumentTest {
record Account(
@NotBlank @Size(max = 40) String name,
@Email String email,
@Min(18) @Max(120) int age) {}
@GET("/accounts")
@ApiOperation(summary = "List accounts")
@APIResponse(responseCode = "200", content = @Content(schema = Account.class))
public static class ListAccounts extends RequestHandler {
@Override public Object handle(Request request, Response response) {
return new Account("alice", "a@b.com", 30);
}
}
@RegisterExtension
static FlashTest app = FlashTest.of(configured -> {
configured.install(new JsonExtension());
configured.install(new OpenApiExtension("/openapi", "Accounts", "1.0.0"));
configured.scan("dev.relism.flash.ext.jackson.json");
});
@Test
void constraintsAppearInTheGeneratedSchema() {
app.get("/openapi.json")
.expectStatus(200)
.expectBodyContains("\"maxLength\":40")
.expectBodyContains("\"format\":\"email\"")
.expectBodyContains("\"minimum\":18")
.expectBodyContains("\"maximum\":120");
}
@Test
void notBlankMarksThePropertyRequiredAndNonEmpty() {
app.get("/openapi.json")
.expectStatus(200)
.expectBodyContains("\"minLength\":1")
.expectBodyContains("\"required\":[\"name\"]");
}
}
flash-extensions/flash-ext-jackson/src/test/java/dev/relism/flash/ext/jackson/JacksonExtensionTest.java → flash-extensions/flash-ext-jackson-json/src/test/java/dev/relism/flash/ext/jackson/json/JsonExtensionTest.java
+9 -9
View File
@@ -1,4 +1,4 @@
package dev.relism.flash.ext.jackson;
package dev.relism.flash.ext.jackson.json;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.extension.FlashContext;
@@ -16,25 +16,25 @@ import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertTrue;
class JacksonExtensionTest {
class JsonExtensionTest {
@Test
void provide_registers_json_mapper_and_middleware() {
void configure_registers_json_mapper_and_middleware() {
FlashContext ctx = new FlashContext();
ObjectMapper mapper = new ObjectMapper();
JacksonExtension ext = new JacksonExtension(mapper);
JsonExtension ext = new JsonExtension(mapper);
ext.provide(ctx);
ext.configure(null, ctx);
ctx.complete();
assertNotNull(ctx.require(Json.class));
assertNotNull(ctx.require(JacksonMiddleware.class));
assertSame(mapper, ctx.require(ObjectMapper.class));
}
@Test
void autoJson_factory_delegates_to_middleware_policy() throws Exception {
void auto_marshals_what_a_handler_returns() throws Exception {
ObjectMapper mapper = new ObjectMapper();
JacksonExtension ext = new JacksonExtension(mapper);
JsonExtension ext = new JsonExtension(mapper);
RequestHandler next = new RequestHandler() {
@Override
public Object handle(Request request, Response response) {
@@ -42,7 +42,7 @@ class JacksonExtensionTest {
}
};
RequestHandler wrapped = new RequestHandler() {
private final SimpleHandler.FunctionalHandler delegate = ext.autoJson().wrap(next);
private final SimpleHandler.FunctionalHandler delegate = ext.auto().wrap(next);
@Override
public Object handle(Request request, Response response) throws Exception {
flash-extensions/flash-ext-jackson-json/src/test/java/dev/relism/flash/ext/jackson/json/JsonHandlerTest.java
+78
View File
@@ -0,0 +1,78 @@
package dev.relism.flash.ext.jackson.json;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.http.HttpMethod;
import dev.relism.flash.models.Http1HeaderMap;
import dev.relism.flash.models.Request;
import dev.relism.flash.models.RequestLine;
import dev.relism.flash.models.Response;
import dev.relism.flash.routing.routers.fastpathrouter.FastPathViews;
import org.junit.jupiter.api.Test;
import java.nio.charset.StandardCharsets;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
class JsonHandlerTest {
public record NewUser(String name) {}
static final class Create extends JsonHandler<NewUser> {
@Override protected Object handle(Request request, Response response, NewUser body) {
return body.name();
}
}
@SuppressWarnings("rawtypes")
static final class Untyped extends JsonHandler {
@Override protected Object handle(Request request, Response response, Object body) {
return null;
}
}
@Test
void theBodyArrivesParsedAsTheTypeTheHandlerDeclares() throws Exception {
Create handler = new Create();
handler.bind(context());
Object answer = handler.handle(request("{\"name\":\"alice\"}"), new Response(200, ContentType.JSON));
assertEquals("alice", answer);
}
@Test
void aMalformedBodyIsTheUsualBadRequest() throws Exception {
Create handler = new Create();
handler.bind(context());
dev.relism.flash.exceptions.HttpException refused = assertThrows(dev.relism.flash.exceptions.HttpException.class,
() -> handler.handle(request("not json"), new Response(200, ContentType.JSON)));
assertEquals(400, refused.status());
}
@Test
void aHandlerThatNeverNamedItsBodyTypeIsRefusedAtBoot() {
IllegalStateException refused = assertThrows(IllegalStateException.class, Untyped::new);
assertTrue(refused.getMessage().contains("Handler<YourBody>"), refused.getMessage());
}
private static FlashContext context() {
FlashContext ctx = new FlashContext();
ctx.provide(Json.class, new Json(new ObjectMapper()));
ctx.complete();
return ctx;
}
private static Request request(String body) {
return new Request(new RequestLine(HttpMethod.POST,
new FastPathViews.StringByteView("/users"), null,
new FastPathViews.StringByteView("HTTP/1.1"), new Http1HeaderMap()),
body.getBytes(StandardCharsets.UTF_8));
}
}
flash-extensions/flash-ext-jackson/src/test/java/dev/relism/flash/ext/jackson/JsonTest.java → flash-extensions/flash-ext-jackson-json/src/test/java/dev/relism/flash/ext/jackson/json/JsonTest.java
+5 -10
View File
@@ -1,11 +1,11 @@
package dev.relism.flash.ext.jackson;
package dev.relism.flash.ext.jackson.json;
import com.fasterxml.jackson.annotation.JsonView;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.exceptions.HttpException;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.http.HttpMethod;
import dev.relism.flash.models.HeaderMap;
import dev.relism.flash.models.Http1HeaderMap;
import dev.relism.flash.models.Request;
import dev.relism.flash.models.RequestLine;
import dev.relism.flash.models.Response;
@@ -37,16 +37,11 @@ class JsonTest {
}
@Test
void bodyFrom_parses_stream_and_maps_bad_payload_to_http_400() throws Exception {
void a_truncated_body_is_a_bad_request_too() throws Exception {
Json json = new Json(new ObjectMapper());
Request ok = request("{\"id\":\"u2\",\"name\":\"bob\"}");
UserDto dto = json.bodyFrom(ok, UserDto.class);
assertEquals("u2", dto.id);
assertEquals("bob", dto.name);
HttpException ex = assertThrows(HttpException.class, () -> json.body(request("["), UserDto.class));
Request bad = request("[");
HttpException ex = assertThrows(HttpException.class, () -> json.bodyFrom(bad, UserDto.class));
assertEquals(400, ex.status());
}
@@ -82,7 +77,7 @@ class JsonTest {
new FastPathViews.StringByteView("/json"),
null,
new FastPathViews.StringByteView("HTTP/1.1"),
new HeaderMap()
new Http1HeaderMap()
);
return new Request(line, body);
}
flash-extensions/flash-ext-jackson/src/test/java/dev/relism/flash/ext/jackson/JacksonMiddlewareTest.java → flash-extensions/flash-ext-jackson-json/src/test/java/dev/relism/flash/ext/jackson/json/MarshallingTest.java
+13 -11
View File
@@ -1,6 +1,8 @@
package dev.relism.flash.ext.jackson;
package dev.relism.flash.ext.jackson.json;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.ext.jackson.Marshalling;
import dev.relism.flash.routing.Middleware;
import dev.relism.flash.models.SimpleHandler;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.models.Request;
@@ -16,13 +18,13 @@ import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
class JacksonMiddlewareTest {
class MarshallingTest {
private static final Request REQ = null;
@Test
void autoJson_marshalsPojo_toJsonBytes_and_setsJsonContentType() throws Exception {
JacksonMiddleware mw = new JacksonMiddleware(new ObjectMapper());
void marshalling_marshalsPojo_toJsonBytes_and_setsJsonContentType() throws Exception {
Middleware mw = Marshalling.of(new ObjectMapper(), ContentType.JSON);
RequestHandler wrapped = wrap(mw, new UserDto("u1", "alice"));
Response res = new Response(200, ContentType.TEXT_PLAIN);
@@ -34,8 +36,8 @@ class JacksonMiddlewareTest {
}
@Test
void autoJson_passThrough_for_response_string_charSequence_bytes_and_null() throws Exception {
JacksonMiddleware mw = new JacksonMiddleware(new ObjectMapper());
void marshalling_passThrough_for_response_string_charSequence_bytes_and_null() throws Exception {
Middleware mw = Marshalling.of(new ObjectMapper(), ContentType.JSON);
Response payloadResponse = new Response(201, ContentType.TEXT_PLAIN).body("ok");
RequestHandler wrappedResponse = wrap(mw, payloadResponse);
@@ -55,17 +57,17 @@ class JacksonMiddlewareTest {
}
@Test
void autoJson_wraps_serialization_errors_as_illegal_state() {
JacksonMiddleware mw = new JacksonMiddleware(new ObjectMapper());
void marshalling_wraps_serialization_errors_as_illegal_state() {
Middleware mw = Marshalling.of(new ObjectMapper(), ContentType.JSON);
RequestHandler wrapped = wrap(mw, new CyclicDto());
Response res = new Response(200, ContentType.TEXT_PLAIN);
IllegalStateException ex = assertThrows(IllegalStateException.class, () -> wrapped.handle(REQ, res));
assertEquals("application/json", new String(res.getContentType(), StandardCharsets.UTF_8));
assertTrue(ex.getMessage().startsWith("Failed to serialize handler result as JSON:"));
assertTrue(ex.getMessage().startsWith("Could not serialize"));
}
private static RequestHandler wrap(JacksonMiddleware mw, Object fixedReturn) {
private static RequestHandler wrap(Middleware mw, Object fixedReturn) {
RequestHandler next = new RequestHandler() {
@Override
public Object handle(Request request, Response response) {
@@ -73,7 +75,7 @@ class JacksonMiddlewareTest {
}
};
return new RequestHandler() {
private final SimpleHandler.FunctionalHandler delegate = mw.autoJson().wrap(next);
private final SimpleHandler.FunctionalHandler delegate = mw.wrap(next);
@Override
public Object handle(Request request, Response response) throws Exception {
flash-extensions/flash-ext-jackson-json/src/test/java/dev/relism/flash/ext/jackson/json/ValidatedBodyTest.java
+67
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@@ -0,0 +1,67 @@
package dev.relism.flash.ext.jackson.json;
import dev.relism.flash.testing.FlashTest;
import jakarta.validation.constraints.Email;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.Size;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.RegisterExtension;
import static org.junit.jupiter.api.Assertions.assertEquals;
/** The whole path: JSON in, constraints checked, status out — with no error handling wired up. */
class ValidatedBodyTest {
record CreateUser(@NotBlank @Size(max = 8) String name, @Email String email, @Min(18) int age) {}
@RegisterExtension
static FlashTest app = FlashTest.of(configured -> {
configured.install(new JsonExtension());
configured.ctx().onReady(() -> {
Json json = configured.ctx().require(Json.class);
configured.post("/users", (req, res) ->
res.status(201).body("created:" + json.body(req, CreateUser.class).name()));
});
});
@Test
void validBodyReachesTheHandler() {
app.request().json("{\"name\":\"alice\",\"email\":\"a@b.com\",\"age\":30}").post("/users")
.expectStatus(201)
.expectBody("created:alice");
}
@Test
void constraintViolationBecomes422WithEveryFailureListed() {
app.request().json("{\"name\":\"\",\"email\":\"nope\",\"age\":5}").post("/users")
.expectStatus(422)
.expectHeader("Content-Type", "application/json")
.expectBodyContains("name must not be blank")
.expectBodyContains("email must be a well-formed email address")
.expectBodyContains("age must be at least 18");
}
@Test
void malformedJsonBecomes400NotAValidationFailure() {
app.request().json("not json").post("/users")
.expectStatus(400)
.expectBodyContains("Invalid request body");
}
/** Regression guard: HttpException used to reach the catch-all and come back as 500. */
@Test
void statusCarriedByTheExceptionSurvivesToTheWire() {
assertEquals(422, app.request().json("{\"name\":\"x\",\"email\":\"a@b.com\",\"age\":1}")
.post("/users").status());
}
@Test
void errorBodyIsValidJsonEvenWhenTheMessageContainsQuotes() {
app.request().json("{\"name\":\"waaaaaaaaaay-too-long\",\"email\":\"a@b.com\",\"age\":30}").post("/users")
.expectStatus(422)
.expectBodyContains("\"status\":422")
.expectBodyContains("size must be at most 8");
}
}
flash-extensions/flash-ext-jackson-xml/README.md
+30
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@@ -0,0 +1,30 @@
# flash-ext-jackson-xml
XML bodies and XML responses, over the same types as every other Jackson format.
```java
XmlExtension xml = new XmlExtension();
app.install(xml).use(xml.auto());
```
```java
@POST("/orders")
public final class PlaceOrder extends XmlHandler<Order> {
@Inject private OrderService orders;
@Override protected Object handle(Request req, Response res, Order body) {
return orders.place(body);
}
}
```
Everything [`flash-ext-jackson-json`](../flash-ext-jackson-json) does, in XML: the body is read off
the request stream, verified against the constraints its type declares, and handed over. A type
annotated for JSON works here as is — `Order` can be a JSON body on one route and an XML body on
another.
What is specific to XML is Jackson's own: `@JacksonXmlRootElement` for the root name,
`@JacksonXmlProperty(isAttribute = true)` for an attribute rather than an element, and
`@JacksonXmlElementWrapper` for how a list is wrapped. This module adds no annotations of its own.
Brings `jackson-dataformat-xml`, and with it Woodstox.
flash-extensions/flash-ext-jackson-xml/pom.xml
+43
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@@ -0,0 +1,43 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-jackson-xml</artifactId>
<name>flash-ext-jackson-xml</name>
<description>XML bodies and responses, over the same types and the same constraints as every other Jackson format.</description>
<dependencies>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-ext-jackson-core</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>jakarta.validation</groupId>
<artifactId>jakarta.validation-api</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-testing</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
flash-extensions/flash-ext-jackson-xml/src/main/java/dev/relism/flash/ext/jackson/xml/Xml.java
+20
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@@ -0,0 +1,20 @@
package dev.relism.flash.ext.jackson.xml;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import dev.relism.flash.ext.jackson.Codec;
import dev.relism.flash.http.ContentType;
/**
* XML in and out, checked against the body type's own constraints.
*
* <p>The same databind model as every other Jackson format: a type is annotated once and can be
* read as XML here and as JSON elsewhere in the same application. XML's own concerns — a root
* element name, an attribute rather than an element, how a list is wrapped — are Jackson's
* {@code @JacksonXml*} annotations on the type.
*/
public final class Xml extends Codec {
public Xml(XmlMapper mapper) {
super(mapper, ContentType.XML);
}
}
flash-extensions/flash-ext-jackson-xml/src/main/java/dev/relism/flash/ext/jackson/xml/XmlExtension.java
+44
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@@ -0,0 +1,44 @@
package dev.relism.flash.ext.jackson.xml;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import dev.relism.flash.ext.jackson.Marshalling;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.extension.FlashExtension;
import dev.relism.flash.extension.FlashRegistrar;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.routing.Middleware;
/**
* XML for an application: the {@link Xml} codec and the middleware that serializes what a handler
* returns.
*
* <pre>{@code
* XmlExtension xml = new XmlExtension();
* app.install(xml).use(xml.auto());
* }</pre>
*
* <p>Install it beside {@code JsonExtension} when an application speaks both: each provides its
* own codec, and a route picks one by the handler it extends.
*/
public class XmlExtension implements FlashExtension {
private final XmlMapper mapper;
public XmlExtension() {
this(XmlMapper.builder().findAndAddModules().build());
}
public XmlExtension(XmlMapper mapper) {
this.mapper = mapper;
}
/** Serializes what a handler returns, unless it already returned a response, bytes or text. */
public Middleware auto() {
return Marshalling.of(mapper, ContentType.XML);
}
@Override
public void configure(FlashRegistrar<?> app, FlashContext ctx) {
ctx.provide(Xml.class, new Xml(mapper));
}
}
flash-extensions/flash-ext-jackson-xml/src/main/java/dev/relism/flash/ext/jackson/xml/XmlHandler.java
+24
View File
@@ -0,0 +1,24 @@
package dev.relism.flash.ext.jackson.xml;
import dev.relism.flash.ext.jackson.Codec;
import dev.relism.flash.ext.jackson.JacksonHandler;
import dev.relism.flash.extension.Inject;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.routing.Consumes;
/**
* A handler that takes an XML body of one type.
*
* <p>Everything {@code JsonHandler} does, in XML: the body is read off the request stream,
* verified against its type's constraints, and handed over. Both can live in the same
* application, on different routes, over the same types.
*/
@Consumes(ContentType.XML)
public abstract class XmlHandler<B> extends JacksonHandler<B> {
@Inject private Xml xml;
@Override protected final Codec codec() {
return xml;
}
}
flash-extensions/flash-ext-jackson-xml/src/test/java/dev/relism/flash/ext/jackson/xml/XmlHandlerTest.java
+81
View File
@@ -0,0 +1,81 @@
package dev.relism.flash.ext.jackson.xml;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import dev.relism.flash.exceptions.HttpException;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.http.HttpMethod;
import dev.relism.flash.models.Http1HeaderMap;
import dev.relism.flash.models.Request;
import dev.relism.flash.models.RequestLine;
import dev.relism.flash.models.Response;
import dev.relism.flash.routing.routers.fastpathrouter.FastPathViews;
import jakarta.validation.constraints.NotBlank;
import org.junit.jupiter.api.Test;
import java.nio.charset.StandardCharsets;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
/** The same handler shape as JSON, over the same types and the same constraints. */
class XmlHandlerTest {
public record Order(@NotBlank String reference) {}
static final class Place extends XmlHandler<Order> {
@Override protected Object handle(Request request, Response response, Order body) {
return body.reference();
}
}
@Test
void theBodyArrivesParsedAsTheTypeTheHandlerDeclares() throws Exception {
Place handler = new Place();
handler.bind(context());
Object answer = handler.handle(request("<Order><reference>A-1</reference></Order>"), response());
assertEquals("A-1", answer);
}
@Test
void aBodyThatBreaksAConstraintNeverReachesTheHandler() throws Exception {
Place handler = new Place();
handler.bind(context());
HttpException refused = assertThrows(HttpException.class,
() -> handler.handle(request("<Order><reference></reference></Order>"), response()));
assertEquals(422, refused.status());
}
@Test
void aMalformedBodyIsABadRequest() throws Exception {
Place handler = new Place();
handler.bind(context());
HttpException refused = assertThrows(HttpException.class,
() -> handler.handle(request("<Order><reference>"), response()));
assertEquals(400, refused.status());
}
private static FlashContext context() {
FlashContext ctx = new FlashContext();
ctx.provide(Xml.class, new Xml(XmlMapper.builder().build()));
ctx.complete();
return ctx;
}
private static Response response() {
return new Response(200, ContentType.XML);
}
private static Request request(String body) {
return new Request(new RequestLine(HttpMethod.POST,
new FastPathViews.StringByteView("/orders"), null,
new FastPathViews.StringByteView("HTTP/1.1"), new Http1HeaderMap()),
body.getBytes(StandardCharsets.UTF_8));
}
}
flash-extensions/flash-ext-jackson/README.md
-116
View File
@@ -1,116 +0,0 @@
# flash-ext-jackson
Jackson JSON integration for Flash with an opinionated auto-marshal middleware.
## What it provides
| Component | Description |
|---|---|
| `JacksonExtension` | Registers JSON services into `FlashContext` |
| `Json` | JSON read/write helper (`body`, `bodyFrom`, `write`, `writeView`) |
| `ObjectMapper` | Raw mapper escape hatch for advanced usage |
| `JacksonMiddleware` | `autoJson()` middleware for automatic outbound JSON marshalling |
Default mapper behavior (`new JacksonExtension()`):
- auto-discovers Jackson modules on classpath (`findAndAddModules()`)
- includes Java Time support (`jackson-datatype-jsr310`)
- writes date/time values as ISO-8601 strings (not numeric timestamps)
## Recommended default
Install the extension, then apply `autoJson()` once at app or scope level.
```java
JacksonExtension jackson = new JacksonExtension();
FlashApp app = FlashApp.create(8080)
.install(jackson)
.use(jackson.autoJson());
app.startAndBlock();
```
Behavior of `autoJson()`:
- pass-through: `null`, `Response`, `byte[]`, `String`, `CharSequence`
- any other return value: serialize to JSON `byte[]`
- sets `Content-Type: application/json` for marshalled responses
- serialization failures throw `IllegalStateException`
This keeps handlers concise while preserving Flash's direct byte write path.
## Installation
```xml
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash-ext-jackson</artifactId>
<version>1.1-indev2</version>
</dependency>
```
## Json helper API
Use `Json` when you want explicit, local control in a handler.
```java
@POST("/users")
public final class CreateUser extends RequestHandler {
private Json json;
@Override
protected void onInit() {
json = require(Json.class);
}
@Override
public Object handle(Request req, Response res) throws Exception {
CreateUserBody body = json.body(req, CreateUserBody.class);
UserDto created = service.create(body);
res.status(201);
return json.write(res, created);
}
}
```
Methods:
- `body(req, Type.class)` -> parse from `req.body().bytes()`
- `bodyFrom(req, Type.class)` -> parse from `req.body().stream()`
- `write(res, obj)` -> writes JSON string and sets JSON content type
- `writeView(res, obj, View.class)` -> JSON with Jackson `@JsonView`
- `mapper()` -> raw `ObjectMapper`
## Custom mapper
```java
ObjectMapper mapper = JsonMapper.builder()
.addModule(new JavaTimeModule())
.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
.build();
FlashApp.create(8080)
.install(new JacksonExtension(mapper));
```
## Scope usage
`autoJson()` works the same at scope level:
```java
JacksonExtension jackson = new JacksonExtension();
app.mount("/api", api -> {
api.use(jackson.autoJson());
api.get("/health", (req, res) -> Map.of("ok", true));
});
```
If you need to pull it from context, `JacksonMiddleware` is also provided as a service
after the app boots (same lifecycle model as other extension-provided services).
## Notes
- Install order is irrelevant (Flash two-phase extension lifecycle).
- `autoJson()` and OpenAPI are intentionally decoupled.
flash-extensions/flash-ext-jackson/pom.xml
-82
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@@ -1,82 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.0.0</version>
</parent>
<artifactId>flash-ext-jackson</artifactId>
<properties>
<jacoco.version>0.8.12</jacoco.version>
</properties>
<dependencies>
<dependency>
<groupId>dev.relism</groupId>
<artifactId>flash</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco.version}</version>
<executions>
<execution>
<id>jacoco-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>jacoco-report-and-check</id>
<phase>verify</phase>
<goals>
<goal>report</goal>
<goal>check</goal>
</goals>
<configuration>
<rules>
<rule>
<element>BUNDLE</element>
<limits>
<limit>
<counter>LINE</counter>
<value>COVEREDRATIO</value>
<minimum>0.80</minimum>
</limit>
</limits>
</rule>
</rules>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
flash-extensions/flash-ext-jackson/src/main/java/dev/relism/flash/ext/jackson/JacksonExtension.java
-92
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@@ -1,92 +0,0 @@
package dev.relism.flash.ext.jackson;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.json.JsonMapper;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.extension.FlashExtension;
import dev.relism.flash.routing.Middleware;
/**
* Registers JSON support into the Flash extension layer.
*
* <p>Exposes a {@link Json} utility instance in the {@link FlashContext} under
* {@code Json.class}. Any handler or extension can retrieve it via {@code ctx.require(Json.class)}
* inside {@code onInit()} (class-based) or inside {@link FlashExtension#routes} (extensions).
*
* <p>The raw {@link ObjectMapper} is also registered under {@code ObjectMapper.class}
* for extensions that need direct mapper access (e.g. OpenAPI schema generation).
*
* <p>{@link JacksonMiddleware} is provided under {@code JacksonMiddleware.class} and
* exposes opinionated JSON auto-marshalling middleware via {@link JacksonMiddleware#autoJson()}.
*
* <h3>Usage — composition (preferred)</h3>
* <pre>{@code
* public class MyHandler extends RequestHandler {
* private Json json;
*
* @Override protected void onInit() {
* json = require(Json.class);
* }
*
* public Object handle(Request req, Response res) throws Exception {
* MyDto dto = json.body(req, MyDto.class);
* return json.write(res, 201, dto);
* }
* }
* }</pre>
*
* <h3>Custom mapper</h3>
* <pre>{@code
* ObjectMapper mapper = JsonMapper.builder()
* .addModule(new JavaTimeModule())
* .disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
* .build();
*
* FlashApp.create(8080)
* .install(new JacksonExtension(mapper));
* }</pre>
*/
public class JacksonExtension implements FlashExtension {
private final ObjectMapper mapper;
private final JacksonMiddleware middleware;
/**
* Installs with an opinionated default {@link JsonMapper}:
* auto-discovers modules on classpath (e.g. Java Time) and writes dates as ISO strings.
*/
public JacksonExtension() {
this(JsonMapper.builder()
.findAndAddModules()
.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
.build());
}
/** Installs with a fully configured custom {@link ObjectMapper}. */
public JacksonExtension(ObjectMapper mapper) {
this.mapper = mapper;
this.middleware = new JacksonMiddleware(mapper);
}
/**
* Opinionated outbound JSON middleware factory.
*
* <p>Use for app/scope-level registration:
* <pre>{@code
* JacksonExtension jackson = new JacksonExtension();
* app.install(jackson).use(jackson.autoJson());
* }</pre>
*/
public Middleware autoJson() {
return middleware.autoJson();
}
@Override
public void provide(FlashContext ctx) {
Json json = new Json(mapper);
ctx.provide(Json.class, json);
ctx.provide(ObjectMapper.class, mapper);
ctx.provide(JacksonMiddleware.class, middleware);
}
}
flash-extensions/flash-ext-jackson/src/main/java/dev/relism/flash/ext/jackson/JacksonMiddleware.java
-62
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@@ -1,62 +0,0 @@
package dev.relism.flash.ext.jackson;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.models.Response;
import dev.relism.flash.routing.Middleware;
/**
* Outbound JSON marshalling middleware for class-based and lambda routes.
*
* <p>{@link #autoJson()} marshals any non-body-native return value to JSON bytes,
* writes {@code Content-Type: application/json}, and returns {@code byte[]} so
* the Flash write path stays direct.
*
* <p>Pass-through return types:
* <ul>
* <li>{@code null}</li>
* <li>{@link Response}</li>
* <li>{@code byte[]}</li>
* <li>{@link String}</li>
* <li>{@link CharSequence}</li>
* </ul>
*/
public final class JacksonMiddleware {
private final ObjectMapper mapper;
JacksonMiddleware(ObjectMapper mapper) {
this.mapper = mapper;
}
/**
* Automatic JSON marshalling policy.
*
* <p>For non-pass-through return values, serializes with Jackson directly to
* {@code byte[]} and sets response content type to JSON.
*
* @throws IllegalStateException when serialization fails
*/
public Middleware autoJson() {
return next -> (req, res) -> {
Object out = next.handle(req, res);
if (isPassThrough(out)) return out;
res.type(ContentType.JSON);
try {
return mapper.writeValueAsBytes(out);
} catch (JsonProcessingException e) {
throw new IllegalStateException(
"Failed to serialize handler result as JSON: " + out.getClass().getName(), e);
}
};
}
private static boolean isPassThrough(Object out) {
return out == null
|| out instanceof Response
|| out instanceof byte[]
|| out instanceof CharSequence;
}
}
flash-extensions/flash-ext-jackson/src/main/java/dev/relism/flash/ext/jackson/Json.java
-117
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@@ -1,117 +0,0 @@
package dev.relism.flash.ext.jackson;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.relism.flash.exceptions.HttpException;
import dev.relism.flash.http.ContentType;
import dev.relism.flash.models.Request;
import dev.relism.flash.models.Response;
/**
* Thread-safe JSON toolbox. Single point of access for all JSON I/O operations
* within a Flash application.
*
* <p>Retrieve once at boot time via {@code require(Json.class)} inside
* {@code onInit()}, cache in a private field, and call on the hot path
* with zero lookup or allocation overhead:
*
* <pre>{@code
* @Route(method = HttpMethod.POST, path = "/api/items")
* public class CreateItemHandler extends RequestHandler {
*
* private Json json;
*
* @Override
* protected void onInit() {
* json = require(Json.class);
* }
*
* public Object handle(Request req, Response res) throws Exception {
* CreateItemRequest body = json.body(req, CreateItemRequest.class);
* return json.write(res, itemService.create(body));
* }
* }
* }</pre>
*
* <p>The underlying {@link ObjectMapper} is shared across all handlers in the same
* scope (one instance per app / per child scope). Jackson's {@code ObjectMapper}
* is fully thread-safe after configuration — no synchronization is needed.
*
* <p>Install via {@link JacksonExtension} before calling {@code scan()} or
* {@code register()}.
*/
public final class Json {
private final ObjectMapper mapper;
/** Package-private — constructed exclusively by {@link JacksonExtension}. */
Json(ObjectMapper mapper) {
this.mapper = mapper;
}
// ── Input ─────────────────────────────────────────────────────────────────
/**
* Deserializes the full request body into an instance of {@code type}.
*
* <p>Reads {@code req.body().bytes()} in one shot. For streaming bodies
* use {@link #bodyFrom(Request, Class)} instead.
*
* @throws HttpException 400 if the body cannot be parsed as {@code type}
*/
public <T> T body(Request req, Class<T> type) throws Exception {
try {
return mapper.readValue(req.body().bytes(), type);
} catch (JsonProcessingException e) {
throw HttpException.badRequest("Invalid request body: " + e.getOriginalMessage());
}
}
/**
* Deserializes the request body via the raw {@link java.io.InputStream},
* avoiding the intermediate {@code byte[]} allocation. Prefer this for
* large bodies or when allocation budget is tight.
*
* @throws HttpException 400 on parse failure
*/
public <T> T bodyFrom(Request req, Class<T> type) throws Exception {
try {
return mapper.readValue(req.body().stream(), type);
} catch (JsonProcessingException e) {
throw HttpException.badRequest("Invalid request body: " + e.getOriginalMessage());
}
}
// ── Output ────────────────────────────────────────────────────────────────
/**
* Serializes {@code obj} to a JSON string and sets
* {@code Content-Type: application/json} on the response.
*
* <p>The returned string is used as the response body by the Flash runtime.
*/
public String write(Response res, Object obj) throws Exception {
res.type(ContentType.JSON);
return mapper.writeValueAsString(obj);
}
/**
* Like {@link #write} but applies a Jackson {@code @JsonView} filter,
* restricting serialization to fields visible under {@code view}.
*/
public String writeView(Response res, Object obj, Class<?> view) throws Exception {
res.type(ContentType.JSON);
return mapper.writerWithView(view).writeValueAsString(obj);
}
// ── Escape hatch ──────────────────────────────────────────────────────────
/**
* Returns the underlying {@link ObjectMapper} for advanced operations
* (custom serialization, schema generation, etc.) not covered by the
* methods above.
*/
public ObjectMapper mapper() {
return mapper;
}
}
flash-extensions/flash-ext-limiter/docs/README.md
+1 -1
View File
@@ -36,7 +36,7 @@ FlashApp.create(8080)
// With custom resolvers
LimiterConfig conf = new LimiterConfig()
.registerResolver("auth_user", req ->
ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anonymous");
SecurityIdentity.current() != null ? SecurityIdentity.current().principal().name() : "anonymous");
FlashApp.create(8080)
.install(new LimiterExtension(conf))
flash-extensions/flash-ext-limiter/docs/key-resolvers.md
+3 -3
View File
@@ -35,11 +35,11 @@ conf.registerResolver("ip", req -> {
LimiterConfig conf = new LimiterConfig();
```
### By authenticated user (OIDC / ClaimsHolder)
### By authenticated user
```java
conf.registerResolver("auth_user", req ->
ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anonymous");
SecurityIdentity.current() != null ? SecurityIdentity.current().principal().name() : "anonymous");
```
Requests from unauthenticated users share the `"anonymous"` bucket. If you want
@@ -88,7 +88,7 @@ returns the same key for the same user regardless of endpoint; the limit is set
```java
conf.registerResolver("auth_user", req ->
ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anon");
SecurityIdentity.current() != null ? SecurityIdentity.current().principal().name() : "anon");
```
```java
flash-extensions/flash-ext-limiter/pom.xml
+1 -1
View File
@@ -7,7 +7,7 @@
<parent>
<groupId>dev.relism</groupId>
<artifactId>flash-extensions</artifactId>
<version>2.0.0</version>
<version>2.1.0-SNAPSHOT</version>
</parent>
<artifactId>flash-ext-limiter</artifactId>
flash-extensions/flash-ext-limiter/src/main/java/dev/relism/flash/ext/limiter/KeyResolver.java
+1 -1
View File
@@ -11,7 +11,7 @@ import dev.relism.flash.models.Request;
*
* <pre>{@code
* conf.registerResolver("ip", req -> req.header("X-Forwarded-For"));
* conf.registerResolver("auth_user", req -> ClaimsHolder.user().sub());
* conf.registerResolver("auth_user", req -> SecurityIdentity.current().principal().name());
* }</pre>
*/
@FunctionalInterface
flash-extensions/flash-ext-limiter/src/main/java/dev/relism/flash/ext/limiter/LimiterConfig.java
+2 -2
View File
@@ -21,8 +21,8 @@ import java.util.Map;
* <pre>{@code
* LimiterConfig conf = new LimiterConfig()
* .registerResolver("auth_user", req -> {
* // custom logic — e.g. extract sub from ClaimsHolder
* return ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anonymous";
* // custom logic — e.g. key by the authenticated caller
* return SecurityIdentity.current() != null ? SecurityIdentity.current().principal().name() : "anonymous";
* });
*
* app.install(new LimiterExtension(conf));
flash-extensions/flash-ext-limiter/src/main/java/dev/relism/flash/ext/limiter/LimiterExtension.java
+15 -21
View File
@@ -5,12 +5,13 @@ import dev.relism.flash.ext.openapi.OpenApiContributorRegistry;
import dev.relism.flash.ext.openapi.OpenApiOperationContribution;
import dev.relism.flash.ext.openapi.OpenApiResponseContribution;
import dev.relism.flash.extension.AnnotationProcessor;
import dev.relism.flash.extension.ExtensionPhase;
import dev.relism.flash.extension.FlashRegistrar;
import dev.relism.flash.extension.FlashContext;
import dev.relism.flash.extension.FlashExtension;
import dev.relism.flash.extension.FlashRegistrar;
import dev.relism.flash.http.HttpStatus;
import dev.relism.flash.routing.Middleware;
import dev.relism.flash.routing.MiddlewareKey;
import dev.relism.flash.routing.MiddlewareNode;
import java.nio.charset.StandardCharsets;
import java.util.List;
@@ -42,23 +43,18 @@ import java.util.Map;
* <h3>Lambda routes (via Guard)</h3>
* <pre>{@code
* app.install(new LimiterExtension(
* new LimiterConfig().registerResolver("auth_user", req -> ClaimsHolder.user().sub())));
* new LimiterConfig().registerResolver("auth_user", req -> SecurityIdentity.current().principal().name())));
*
* // inside FlashExtension.routes() or after install():
* // inside a FlashContext.onReady(...) callback:
* Guard guard = ctx.require(Guard.class);
* app.get("/api/search", handler, guard.limit("ip", 50, 1, TimeUnit.SECONDS));
* }</pre>
*/
public final class LimiterExtension implements FlashExtension {
private static final MiddlewareKey LIMIT = MiddlewareKey.of("flash.limiter.limit");
private final LimiterConfig config;
/**
* Rate limiting runs before authentication — cheaper check rejects over-limit
* requests before any token validation occurs.
*/
@Override public int priority() { return ExtensionPhase.EARLY.value; }
/** Installs with default config (only the built-in {@code "ip"} resolver). */
public LimiterExtension() {
this(new LimiterConfig());
@@ -70,7 +66,7 @@ public final class LimiterExtension implements FlashExtension {
}
@Override
public void provide(FlashContext ctx) {
public void configure(FlashRegistrar<?> app, FlashContext ctx) {
BucketStore store = new BucketStore();
Guard guard = new Guard(config, store);
@@ -90,17 +86,15 @@ public final class LimiterExtension implements FlashExtension {
ann.strategy().create()
);
return List.of(buildMiddleware(resolver, cfg, store));
return List.of(MiddlewareNode.of(LIMIT, buildMiddleware(resolver, cfg, store)));
});
ctx.onReady(() -> {
try {
OpenApiIntegration.register(ctx);
} catch (NoClassDefFoundError ignored) {
// flash-ext-openapi not available — OpenAPI integration disabled
}
});
}
@Override
public void routes(FlashRegistrar<?> app, FlashContext ctx) {
try {
OpenApiIntegration.register(ctx);
} catch (NoClassDefFoundError ignored) {
// flash-ext-openapi not available — OpenAPI integration disabled
}
}
// ── Package-private helper — shared with Guard ────────────────────────────
flash-extensions/flash-ext-limiter/src/test/java/dev/relism/flash/ext/limiter/LimiterOpenApiInteropTest.java
+6 -3
View File
@@ -41,7 +41,8 @@ class LimiterOpenApiInteropTest {
OpenApiContributorRegistry registry = new OpenApiContributorRegistry();
ctx.provide(OpenApiContributorRegistry.class, registry);
new LimiterExtension().routes(null, ctx);
new LimiterExtension().configure(null, ctx);
ctx.complete();
assertEquals(1, registry.contributors().size());
}
@@ -51,7 +52,8 @@ class LimiterOpenApiInteropTest {
FlashContext ctx = new FlashContext();
OpenApiContributorRegistry registry = new OpenApiContributorRegistry();
ctx.provide(OpenApiContributorRegistry.class, registry);
new LimiterExtension().routes(null, ctx);
new LimiterExtension().configure(null, ctx);
ctx.complete();
OpenApiContributor contributor = registry.contributors().getFirst();
OpenApiOperationContribution operation = contributor.operationFor(LimitedHandler.class);
@@ -73,7 +75,8 @@ class LimiterOpenApiInteropTest {
FlashContext ctx = new FlashContext();
OpenApiContributorRegistry registry = new OpenApiContributorRegistry();
ctx.provide(OpenApiContributorRegistry.class, registry);
new LimiterExtension().routes(null, ctx);
new LimiterExtension().configure(null, ctx);
ctx.complete();
OpenApiContributor contributor = registry.contributors().getFirst();
OpenApiOperationContribution operation = contributor.operationFor(PlainHandler.class);
flash-extensions/flash-ext-mcp/docs/README.md
+56
View File
@@ -0,0 +1,56 @@
# flash-ext-mcp
`flash-ext-mcp` turns a Flash5 app into an [MCP](https://modelcontextprotocol.io) (Model Context
Protocol) server: JSON-RPC 2.0 over the Streamable HTTP transport, tools/resources/prompts
declared as plain classes and discovered at boot, optional OAuth2 protection built on
`flash-ext-security-core`.
## Quick Start
```java
FlashApp.create(8080)
.install(new McpExtension(McpConfig.builder("my-mcp-server")
.toolsPackage("com.example.tools")
.build()))
.start();
```
```java
@Tool(name = "get_weather", description = "Get current weather for a city",
args = @ToolArg(name = "city", description = "City name", required = true))
public class GetWeatherTool extends McpTool {
private WeatherService weatherService;
@Override
protected void onInit() {
weatherService = require(WeatherService.class);
}
@Override
public ToolResponse call(ToolArguments args) {
return ToolResponse.success(new TextContent(weatherService.fetch(args.getString("city"))));
}
}
```
## Operating Model
- **One class per tool/resource/prompt** — mirrors `RequestHandler`: a no-arg constructor,
`onInit()` to cache services from `FlashContext`, one hot-path method
(`call`/`read`/`render`). No CDI, no field injection, no reflection on the hot path.
- **Boot-time precompilation** — `tools/list`/`resources/list`/`prompts/list` JSON payloads
(including JSON Schema) are built once at boot and spliced verbatim into responses. See
`tools-resources-prompts.md`.
- **Transport**: Streamable HTTP, `POST`-only, stateless in this revision — see `transport.md`
for exactly what that means and why.
- **Security**: authenticated by `flash-ext-security-core`, an OAuth2 protected resource when OIDC is installed — see `security.md`.
- **JSON**: this extension owns its JSON handling independently of `flash-ext-jackson` — see
`jackson-interop.md` for why, and how a future opt-in reuse could work.
## Documents
- [`tools-resources-prompts.md`](tools-resources-prompts.md) — defining tools, resources, prompts
- [`transport.md`](transport.md) — Streamable HTTP scope, session/SSE limitations, Origin validation
- [`security.md`](security.md) — `McpSecurity` policy, OAuth2 resolution, RFC 9728 / RFC 8707
- [`jackson-interop.md`](jackson-interop.md) — why this extension does not depend on `flash-ext-jackson`

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