type) throws Exception {
- requireMapper();
- try {
- return mapper.readValue(req.body().bytes(), type);
- } catch (JsonProcessingException e) {
- throw HttpException.badRequest("Invalid request body: " + e.getOriginalMessage());
- }
- }
-
- /**
- * Serializes {@code obj} to JSON, sets {@code Content-Type: application/json},
- * and returns the JSON string as the response body.
- */
- protected String json(Response res, Object obj) throws Exception {
- requireMapper();
- res.setContentType(ContentType.JSON);
- return mapper.writeValueAsString(obj);
- }
-
- /**
- * Like {@link #json} but serializes only fields visible under the given
- * {@code view} class (see Jackson {@code @JsonView}).
- */
- protected String jsonView(Response res, Object obj, Class view) throws Exception {
- requireMapper();
- res.setContentType(ContentType.JSON);
- return mapper.writerWithView(view).writeValueAsString(obj);
- }
-
- private static void requireMapper() {
- if (mapper == null)
- throw new IllegalStateException(
- "JacksonExtension not installed: call FlashApp.install(new JacksonExtension()) first");
- }
-}
diff --git a/flash-extensions/flash-ext-jackson/src/main/java/dev/relism/ext/jackson/Json.java b/flash-extensions/flash-ext-jackson/src/main/java/dev/relism/ext/jackson/Json.java
new file mode 100644
index 0000000..a8760f6
--- /dev/null
+++ b/flash-extensions/flash-ext-jackson/src/main/java/dev/relism/ext/jackson/Json.java
@@ -0,0 +1,126 @@
+package dev.relism.ext.jackson;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import dev.relism.exceptions.HttpException;
+import dev.relism.http.ContentType;
+import dev.relism.models.Request;
+import dev.relism.models.Response;
+
+/**
+ * Thread-safe JSON toolbox. Single point of access for all JSON I/O operations
+ * within a Flash application.
+ *
+ * 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:
+ *
+ *
{@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));
+ * }
+ * }
+ * }
+ *
+ * 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.
+ *
+ *
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}.
+ *
+ *
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 body(Request req, Class 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 bodyFrom(Request req, Class 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.
+ *
+ * The returned string is used as the response body by the Flash runtime.
+ */
+ public String write(Response res, Object obj) throws Exception {
+ res.setContentType(ContentType.JSON);
+ return mapper.writeValueAsString(obj);
+ }
+
+ /**
+ * Like {@link #write(Response, Object)} but also sets an explicit HTTP status code.
+ */
+ public String write(Response res, int status, Object obj) throws Exception {
+ res.status(status);
+ res.setContentType(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.setContentType(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;
+ }
+}
diff --git a/flash-extensions/flash-ext-limiter/docs/README.md b/flash-extensions/flash-ext-limiter/docs/README.md
new file mode 100644
index 0000000..098b0d8
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/docs/README.md
@@ -0,0 +1,65 @@
+# flash-ext-limiter
+
+Rate limiting for the Flash HTTP server. Zero-allocation hot-path, lock-free counters,
+pluggable key resolvers, and two built-in algorithms.
+
+## What it provides
+
+| Component | Description |
+|---|---|
+| `@Limit` | Annotation for class-based handlers — processed once at boot |
+| `Guard` | Programmatic middleware factory for lambda routes |
+| `LimiterConfig` | Resolver registry — map string names to key-extraction lambdas |
+| `FIXED_WINDOW` | Clock-aligned counter reset; minimal memory |
+| `TOKEN_BUCKET` | Continuous refill; absorbs bursts smoothly |
+
+## Dependency
+
+```xml
+
+ dev.relism
+ flash-ext-limiter
+ 1.0-SNAPSHOT
+
+```
+
+## Quick start
+
+```java
+// Default install — only the built-in "ip" resolver available
+FlashApp.create(8080)
+ .install(new LimiterExtension())
+ .scan("com.example.handlers");
+```
+
+```java
+// With custom resolvers
+LimiterConfig conf = new LimiterConfig()
+ .registerResolver("auth_user", req ->
+ ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anonymous");
+
+FlashApp.create(8080)
+ .install(new LimiterExtension(conf))
+ .scan("com.example.handlers");
+```
+
+## Installation order
+
+Install `LimiterExtension` **before** authentication extensions. Rate-limit checks
+then short-circuit over-limit requests before expensive token validation runs.
+
+```java
+app.install(new LimiterExtension(conf)) // ← first
+ .install(new OidcExtension(oidcConf)) // ← second
+ .scan("com.example");
+```
+
+## Docs
+
+| File | Contents |
+|---|---|
+| [key-resolvers.md](key-resolvers.md) | Resolver registration, built-in defaults, custom logic |
+| [annotation.md](annotation.md) | `@Limit` reference — all fields and examples |
+| [guard.md](guard.md) | `Guard` for lambda routes — all overloads |
+| [strategies.md](strategies.md) | `FIXED_WINDOW` vs `TOKEN_BUCKET` — algorithm reference |
+| [http-headers.md](http-headers.md) | HTTP compliance — headers and 429 response |
diff --git a/flash-extensions/flash-ext-limiter/docs/annotation.md b/flash-extensions/flash-ext-limiter/docs/annotation.md
new file mode 100644
index 0000000..8523a7a
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/docs/annotation.md
@@ -0,0 +1,132 @@
+# @Limit annotation
+
+Applies a rate limit to a **class-based** `RequestHandler`. The annotation is read once
+per handler class at boot by the `LimiterExtension` annotation processor — zero overhead
+at request time.
+
+## Declaration
+
+```java
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Limit {
+ String key() default "ip";
+ int requests();
+ long window();
+ TimeUnit windowUnit() default TimeUnit.SECONDS;
+ LimitStrategy strategy() default LimitStrategy.FIXED_WINDOW;
+}
+```
+
+## Fields
+
+| Field | Type | Default | Description |
+|---|---|---|---|
+| `key` | `String` | `"ip"` | Name of the key resolver registered in `LimiterConfig` |
+| `requests` | `int` | — | Maximum requests allowed per window (required) |
+| `window` | `long` | — | Window duration in `windowUnit` units (required) |
+| `windowUnit` | `TimeUnit` | `SECONDS` | Time unit for `window` |
+| `strategy` | `LimitStrategy` | `FIXED_WINDOW` | Rate-limit algorithm |
+
+## Basic usage
+
+### 100 requests per second per IP (default)
+
+```java
+@Route(method = HttpMethod.GET, path = "/api/search")
+@Limit(requests = 100, window = 1)
+public class SearchHandler extends RequestHandler {
+ public Object handle(Request req, Response res) {
+ return searchService.query(req.query("q"));
+ }
+}
+```
+
+### 20 requests per minute per authenticated user
+
+```java
+@Route(method = HttpMethod.POST, path = "/api/report")
+@Limit(key = "auth_user", requests = 20, window = 1, windowUnit = TimeUnit.MINUTES)
+@Authenticated
+public class ReportHandler extends RequestHandler {
+ public Object handle(Request req, Response res) { ... }
+}
+```
+
+Order of annotation processors: register `LimiterExtension` before `OidcExtension`
+so the rate-limit middleware wraps the outer layer of the chain and fires before auth.
+
+### Token bucket — absorb bursts
+
+```java
+@Route(method = HttpMethod.POST, path = "/api/upload")
+@Limit(
+ key = "api_key",
+ requests = 50,
+ window = 1,
+ windowUnit = TimeUnit.MINUTES,
+ strategy = LimitStrategy.TOKEN_BUCKET
+)
+public class UploadHandler extends RequestHandler { ... }
+```
+
+### Large window — 1000 requests per hour
+
+```java
+@Route(method = HttpMethod.GET, path = "/api/export")
+@Limit(requests = 1000, window = 1, windowUnit = TimeUnit.HOURS)
+public class ExportHandler extends RequestHandler { ... }
+```
+
+### Strict per-second limit on a public endpoint
+
+```java
+@Route(method = HttpMethod.GET, path = "/api/prices")
+@Limit(requests = 10, window = 1, windowUnit = TimeUnit.SECONDS)
+public class PriceHandler extends RequestHandler { ... }
+```
+
+## Combining @Limit with other annotations
+
+`@Limit` composes naturally with `@Authenticated`, `@RolesAllowed`, and `@ApiOperation`.
+Each annotation is processed by its own processor; Flash collects all middleware and
+composes them in processor registration order.
+
+```java
+@Route(method = HttpMethod.DELETE, path = "/admin/users/{id}")
+@Limit(key = "auth_user", requests = 5, window = 1, windowUnit = TimeUnit.MINUTES)
+@RolesAllowed("admin")
+@ApiOperation(summary = "Delete a user", tags = "admin")
+public class DeleteUserHandler extends RequestHandler { ... }
+```
+
+Execution chain (outermost → handler):
+`LimiterMiddleware → OidcRolesMiddleware → DeleteUserHandler`
+
+## Fail-fast at boot
+
+If `key` names a resolver not registered in `LimiterConfig`, the server refuses to start:
+
+```
+dev.relism.exceptions.InitializationException:
+ Rate-limit resolver "auth_user" is not registered.
+ Call LimiterConfig.registerResolver("auth_user", req -> ...) before install.
+```
+
+There is no silent fallback — a misconfigured rate limit is treated as a hard error.
+
+## What happens on violation
+
+```
+HTTP/1.1 429 Too Many Requests
+X-RateLimit-Limit: 100
+X-RateLimit-Remaining: 0
+X-RateLimit-Reset: 1711750860
+Retry-After: 1
+Content-Type: text/plain
+
+Too Many Requests
+```
+
+The handler body is never invoked. See [http-headers.md](http-headers.md) for the full
+header reference.
diff --git a/flash-extensions/flash-ext-limiter/docs/guard.md b/flash-extensions/flash-ext-limiter/docs/guard.md
new file mode 100644
index 0000000..62edb8f
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/docs/guard.md
@@ -0,0 +1,144 @@
+# Guard — programmatic rate limiting for lambda routes
+
+`Guard` is the rate-limit API for lambda (inline) route registrations. It produces
+a `Middleware` that is composed once at route-wiring time — the resolver lambda is
+captured directly into the closure, with no map lookup on the request hot-path.
+
+## Obtaining Guard
+
+`Guard` is provided in the `FlashContext` after `LimiterExtension` is installed:
+
+```java
+Guard guard = app.ctx().require(Guard.class);
+```
+
+Or inside another extension:
+
+```java
+public void install(FlashRegistrar app, FlashContext ctx) {
+ Guard guard = ctx.require(Guard.class);
+ // ...
+}
+```
+
+## API
+
+```java
+// Fixed window (default strategy)
+Middleware limit(String resolverKey, int requests, long window, TimeUnit unit)
+
+// Explicit strategy
+Middleware limit(String resolverKey, int requests, long window, TimeUnit unit, LimitStrategy strategy)
+```
+
+Both overloads:
+- Resolve the named key lambda **once** at call time (fail-fast if unknown).
+- Return a stateless `Middleware` whose closure captures the lambda and `LimitConfig` directly.
+- Share the `BucketStore` with all other rules registered through this `LimiterExtension` instance.
+
+## Examples
+
+### Simple per-IP limit on a lambda route
+
+```java
+Guard guard = app.ctx().require(Guard.class);
+
+app.get("/api/search", (req, res) -> searchService.query(req.query("q")))
+ .with(guard.limit("ip", 100, 1, TimeUnit.SECONDS));
+```
+
+### Per authenticated user — token bucket
+
+```java
+app.post("/api/export", (req, res) -> exportService.run(req))
+ .with(guard.limit("auth_user", 10, 1, TimeUnit.MINUTES, LimitStrategy.TOKEN_BUCKET));
+```
+
+### Chaining with other middleware
+
+`Guard.limit(...)` returns a plain `Middleware`, so it composes with `Middleware.of()`
+and `.andThen()` exactly like any other middleware:
+
+```java
+Middleware secured = Middleware.of(
+ guard.limit("ip", 200, 1, TimeUnit.SECONDS), // ← outermost: runs first
+ oidc.protect()
+);
+
+app.get("/dashboard", handler).with(secured);
+```
+
+Or with `.andThen()` for two middlewares:
+
+```java
+app.get("/dashboard", handler)
+ .with(guard.limit("ip", 200, 1, TimeUnit.SECONDS).andThen(oidc.protect()));
+```
+
+### Different limits on the same path by method
+
+```java
+// Read: 500/s; Write: 20/s
+app.get("/api/items", readHandler) .with(guard.limit("ip", 500, 1, TimeUnit.SECONDS));
+app.post("/api/items", writeHandler).with(guard.limit("ip", 20, 1, TimeUnit.SECONDS));
+```
+
+Each `.with(guard.limit(...))` call creates an independent bucket store key namespace —
+GET and POST requests to `/api/items` share the same IP bucket only if you share the same
+`Middleware` instance. Using two `guard.limit(...)` calls creates **two independent buckets**.
+
+### Reusing a middleware instance across routes
+
+To share a single bucket pool across multiple routes (treating them as one combined limit):
+
+```java
+Middleware sharedIpLimit = guard.limit("ip", 1000, 1, TimeUnit.MINUTES);
+
+app.get("/api/items", handler1).with(sharedIpLimit);
+app.get("/api/items/{id}", handler2).with(sharedIpLimit);
+app.post("/api/items", handler3).with(sharedIpLimit);
+```
+
+All three routes now draw from the same per-IP bucket — 1000 combined requests per minute.
+
+### Inside an extension
+
+```java
+public class MyApiExtension implements FlashExtension {
+ public void install(FlashRegistrar app, FlashContext ctx) {
+ Guard guard = ctx.require(Guard.class); // LimiterExtension must be installed first
+
+ Middleware ipLimit = guard.limit("ip", 60, 1, TimeUnit.SECONDS);
+
+ app.get("/api/status", statusHandler) .with(ipLimit);
+ app.get("/api/metrics", metricsHandler).with(ipLimit);
+ }
+}
+```
+
+### Large window
+
+```java
+app.get("/api/export", exportHandler)
+ .with(guard.limit("api_key", 50, 24, TimeUnit.HOURS));
+```
+
+## Fail-fast
+
+If the resolver name is not registered, `guard.limit(...)` throws immediately
+(at wiring time, not at request time):
+
+```
+InitializationException: Rate-limit resolver "auth_user" is not registered.
+```
+
+## Comparison: Guard vs @Limit
+
+| | `@Limit` | `Guard.limit(...)` |
+|---|---|---|
+| Route style | Class-based `RequestHandler` | Lambda `(req, res) -> ...` |
+| Configuration | Annotation fields | Method arguments |
+| Where resolved | `AnnotationProcessor` at `scan()` | `guard.limit(...)` call at wiring |
+| Hot-path overhead | Zero | Zero |
+| Fail-fast | Yes | Yes |
+| Composable with `Middleware.of()` | Via annotation processor order | Yes, directly |
diff --git a/flash-extensions/flash-ext-limiter/docs/http-headers.md b/flash-extensions/flash-ext-limiter/docs/http-headers.md
new file mode 100644
index 0000000..1d91443
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/docs/http-headers.md
@@ -0,0 +1,122 @@
+# HTTP headers and 429 response
+
+The extension injects standard rate-limit headers on **every** request — both allowed
+and rejected. Clients can use these headers to implement back-off logic without waiting
+for a 429.
+
+## Response headers
+
+| Header | Type | Description |
+|---|---|---|
+| `X-RateLimit-Limit` | integer | Maximum requests allowed in the current window |
+| `X-RateLimit-Remaining` | integer | Requests remaining in the current window (≥ 0) |
+| `X-RateLimit-Reset` | Unix timestamp (s) | When the quota resets or the next token arrives |
+| `Retry-After` | seconds | **Only on 429** — how long to wait before retrying (≥ 1) |
+
+### Example — allowed request
+
+```
+HTTP/1.1 200 OK
+X-RateLimit-Limit: 100
+X-RateLimit-Remaining: 73
+X-RateLimit-Reset: 1711750860
+Content-Type: application/json
+```
+
+### Example — rejected request (429)
+
+```
+HTTP/1.1 429 Too Many Requests
+X-RateLimit-Limit: 100
+X-RateLimit-Remaining: 0
+X-RateLimit-Reset: 1711750860
+Retry-After: 1
+Content-Type: text/plain
+
+Too Many Requests
+```
+
+## Header semantics by strategy
+
+### FIXED_WINDOW
+
+| Header | Value |
+|---|---|
+| `X-RateLimit-Reset` | Unix timestamp of the **next window start** (aligned to clock) |
+| `Retry-After` | Seconds until `X-RateLimit-Reset` (minimum 1) |
+
+At a 1-second window boundary `Retry-After` will typically be `1`.
+
+### TOKEN_BUCKET
+
+| Header | Value |
+|---|---|
+| `X-RateLimit-Remaining` | Current token count (may increase between requests due to refill) |
+| `X-RateLimit-Reset` | Estimated Unix timestamp when the **next token arrives** |
+| `Retry-After` | Milliseconds-precise estimate converted to seconds (minimum 1) |
+
+Because the token bucket refills continuously, `X-RateLimit-Reset` is a near-future
+timestamp rather than an aligned window boundary.
+
+## Retry-After precision
+
+`Retry-After` is computed as:
+
+```
+retryAfter = max(1, X-RateLimit-Reset - currentTimeSeconds)
+```
+
+The minimum value is always `1` second — RFC 7231 discourages `Retry-After: 0` as it
+encourages instant retry loops.
+
+## Client-side back-off example (Java)
+
+```java
+HttpResponse res = client.send(request, BodyHandlers.ofString());
+
+if (res.statusCode() == 429) {
+ String retryAfter = res.headers().firstValue("Retry-After").orElse("1");
+ long waitMs = Long.parseLong(retryAfter) * 1000L;
+ Thread.sleep(waitMs);
+ // retry...
+}
+```
+
+## Client-side back-off example (JavaScript fetch)
+
+```js
+const res = await fetch('/api/search?q=flash');
+
+if (res.status === 429) {
+ const retryAfter = parseInt(res.headers.get('Retry-After') ?? '1', 10);
+ await new Promise(r => setTimeout(r, retryAfter * 1000));
+ // retry...
+}
+```
+
+## Monitoring / alerting
+
+`X-RateLimit-Remaining` can be scraped by a metrics agent to track approaching limits
+before they hit 429:
+
+- `remaining / limit < 0.1` → warning (less than 10% quota left)
+- `status == 429` → rate-limit violation counter increment
+
+If `flash-ext-limiter` is used together with a future metrics extension, the 429 rate
+per resolver key is a natural signal for abuse detection or auto-scaling.
+
+## Header injection timing
+
+Headers are injected **before** calling `next.handle(req, res)` on allowed requests,
+and **instead of** calling it on rejected requests. This means:
+
+- Handlers cannot accidentally overwrite `X-RateLimit-*` headers (they are set first,
+ but handlers that call `res.header(...)` with the same name will add a second value —
+ avoid this by not setting these headers manually).
+- On 429, the handler body is never executed — no side effects occur.
+
+## Integration with Swagger UI (flash-ext-openapi)
+
+Rate-limit headers are not currently injected into the OpenAPI spec. If you want to
+document them, add them manually via `@ApiOperation` on the handler class using the
+response headers section of the OpenAPI spec.
diff --git a/flash-extensions/flash-ext-limiter/docs/key-resolvers.md b/flash-extensions/flash-ext-limiter/docs/key-resolvers.md
new file mode 100644
index 0000000..1b39d34
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/docs/key-resolvers.md
@@ -0,0 +1,143 @@
+# Key Resolvers
+
+A **key resolver** is a lambda `Request → String` that extracts the partition key used
+to identify who a rate limit applies to. Each unique key value gets its own independent
+bucket — so `"ip"` limits per client address, `"auth_user"` limits per logged-in user, etc.
+
+## Built-in resolver: `"ip"`
+
+Always present. Cannot be removed; can be overridden with `registerResolver("ip", ...)`.
+
+Resolution order:
+1. `X-Forwarded-For` header — first address in the comma-separated list (client behind proxy)
+2. `X-Real-IP` header — single forwarded IP (nginx `proxy_set_header X-Real-IP`)
+3. `req.remoteAddress().getAddress().getHostAddress()` — direct socket address, zero allocation
+ (the `InetSocketAddress` already exists from `ServerSocket.accept()`; only `getHostAddress()`
+ allocates a String, and only when the first two headers are absent)
+4. `"unknown"` — only if `remoteAddress()` is null (test-constructed requests)
+
+```java
+// Override the built-in "ip" resolver to trust only the last hop in X-Forwarded-For
+conf.registerResolver("ip", req -> {
+ String xff = req.header("X-Forwarded-For");
+ if (xff != null) {
+ String[] parts = xff.split(",");
+ return parts[parts.length - 1].strip(); // last = most recent proxy
+ }
+ return req.header("X-Real-IP") != null ? req.header("X-Real-IP").strip() : "unknown";
+});
+```
+
+
+## Registering custom resolvers
+
+```java
+LimiterConfig conf = new LimiterConfig();
+```
+
+### By authenticated user (OIDC / ClaimsHolder)
+
+```java
+conf.registerResolver("auth_user", req ->
+ ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anonymous");
+```
+
+Requests from unauthenticated users share the `"anonymous"` bucket. If you want
+unauthenticated requests to be unlimited, pair this resolver with `@Limit` only on
+handlers that are already protected by `@Authenticated`.
+
+### By API key header
+
+```java
+conf.registerResolver("api_key", req -> {
+ String key = req.header("X-Api-Key");
+ return key != null ? key : "none";
+});
+```
+
+### By tenant (multi-tenant SaaS)
+
+```java
+conf.registerResolver("tenant", req -> {
+ // Extract from subdomain: acme.api.example.com → "acme"
+ String host = req.header("Host");
+ if (host == null) return "unknown";
+ int dot = host.indexOf('.');
+ return dot > 0 ? host.substring(0, dot) : host;
+});
+```
+
+### By IP + path (per-endpoint per-IP)
+
+Combines two dimensions into a single key string:
+
+```java
+conf.registerResolver("ip_path", req -> {
+ String ip = req.header("X-Forwarded-For");
+ if (ip == null) ip = "unknown";
+ int comma = ip.indexOf(',');
+ if (comma > 0) ip = ip.substring(0, comma).strip();
+ return ip + "|" + req.path();
+});
+```
+
+### Composite: role-based bucket size
+
+One resolver, two different `@Limit` thresholds on two handler classes. The resolver
+returns the same key for the same user regardless of endpoint; the limit is set per handler.
+
+```java
+conf.registerResolver("auth_user", req ->
+ ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anon");
+```
+
+```java
+@Limit(key = "auth_user", requests = 1000, window = 1) // privileged endpoint
+public class AdminReportHandler extends RequestHandler { ... }
+
+@Limit(key = "auth_user", requests = 20, window = 1) // public endpoint
+public class PublicSearchHandler extends RequestHandler { ... }
+```
+
+The two handlers maintain **independent buckets** for the same user — each `@Limit`
+annotation gets its own `BucketStore`.
+
+## Resolver contract
+
+```java
+@FunctionalInterface
+public interface KeyResolver {
+ String resolve(Request req); // must never return null; return "unknown" as fallback
+}
+```
+
+- Must not return `null` — a null key will throw `NullPointerException` inside `ConcurrentHashMap`.
+- Must be **thread-safe** — called concurrently from virtual threads.
+- Should be **fast** — it runs on every request for every rate-limited route.
+- No state should be mutated — treat `Request` as read-only.
+
+## Fail-fast validation
+
+If a `@Limit` annotation or `guard.limit(...)` call references a resolver name that was never
+registered, the server **refuses to start** with `InitializationException`:
+
+```
+InitializationException: Rate-limit resolver "auth_user" is not registered.
+Call LimiterConfig.registerResolver("auth_user", req -> ...) before install.
+```
+
+This check happens at boot time (annotation processor / Guard wiring), not at request time.
+
+## Registration API
+
+```java
+LimiterConfig conf = new LimiterConfig()
+ .registerResolver("auth_user", req -> ...)
+ .registerResolver("tenant", req -> ...)
+ .registerResolver("api_key", req -> ...);
+
+app.install(new LimiterExtension(conf));
+```
+
+`registerResolver` returns `this` for fluent chaining. Calling it with an existing name
+**replaces** the previous resolver — this is how you override the built-in `"ip"` resolver.
diff --git a/flash-extensions/flash-ext-limiter/docs/strategies.md b/flash-extensions/flash-ext-limiter/docs/strategies.md
new file mode 100644
index 0000000..6420e7a
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/docs/strategies.md
@@ -0,0 +1,178 @@
+# Rate-limit strategies
+
+Two algorithms are built in. Both are lock-free (CAS-only), operate on pre-allocated
+`Bucket` state, and write results into a caller-supplied `long[2]` — zero per-request allocation.
+
+## FIXED_WINDOW
+
+```java
+@Limit(strategy = LimitStrategy.FIXED_WINDOW, ...) // default, can be omitted
+guard.limit("ip", 100, 1, TimeUnit.SECONDS) // default
+```
+
+### How it works
+
+The request counter resets to zero at each clock-aligned window boundary.
+
+```
+ window 1 window 2 window 3
+|────────────────|────────────────|────────────────|
+ cnt: 0 1 2 … N cnt: 0 1 2 … N cnt: 0 1 2 … N
+```
+
+With `requests = 100, window = 1s`:
+- Requests 1–100 in a given second → allowed
+- Request 101+ in that second → 429, allowed again at second +1
+
+### Implementation
+
+All state is packed into a single `AtomicLong` (`Bucket.slot0`):
+
+```
+high 32 bits = reduced epoch = (currentTimeMs / windowMs) & 0xFFFFFFFF
+low 32 bits = request count in the current window
+```
+
+One CAS operation per request. At a window boundary the same CAS atomically resets the
+counter to 1. No locks, no additional fields.
+
+### Burst behaviour
+
+Because the window is fixed to the clock, a burst can occur at the boundary:
+up to `N` requests at the end of window 1 followed immediately by `N` requests at the
+start of window 2 → `2N` requests in a short interval.
+
+```
+ window 1 │ window 2
+ ────────────┼────────────
+ 99 100 101 │ 1 2 3 4
+ ↑ reset: 101 → 429, then 1 is allowed
+```
+
+If burst tolerance is unacceptable, use `TOKEN_BUCKET`.
+
+### When to use
+
+- Simple API rate limiting where occasional boundary bursts are acceptable.
+- Scenarios where a hard "N requests per clock second/minute" guarantee matters.
+- When you want minimal per-bucket memory (one `AtomicLong`, `Bucket.slot1` unused).
+
+---
+
+## TOKEN_BUCKET
+
+```java
+@Limit(strategy = LimitStrategy.TOKEN_BUCKET, ...)
+guard.limit("ip", 100, 1, TimeUnit.SECONDS, LimitStrategy.TOKEN_BUCKET)
+```
+
+### How it works
+
+The bucket holds up to `requests` tokens and refills at a continuous rate of
+`requests / window` tokens per millisecond. Each request consumes one token.
+A client that was idle accumulates tokens and can fire a burst, but sustained
+excess traffic drains the bucket and triggers 429s.
+
+```
+tokens
+ N ─┐ ┌──── refill slope ────┐
+ │ │ │
+ 0 └───────────┘ ←─ burst consumed ──→│
+ burst here 429s during drain recovery
+```
+
+### Refill rate
+
+`refillPerMs = (requests × 1000) / windowMs` (integer, minimum 1)
+
+For `requests = 100, window = 1s`:
+- Refill rate: 100 tokens/s = 1 token/10 ms
+- Max capacity: 100 tokens
+- A client idle for 500 ms accumulates 50 tokens and can fire 50 requests instantly.
+
+### Implementation
+
+- `Bucket.slot0` — current tokens × 1000 (fixed-point, avoids floating-point math)
+- `Bucket.slot1` — last-refill timestamp in ms (0 = uninitialised → bucket starts full)
+
+One CAS loop on `slot0` per request; `slot1` updated best-effort after CAS success.
+The bounded inaccuracy from the non-atomic dual update is at most a few nanoseconds —
+negligible and self-correcting for rate limiting.
+
+### Bucket starts full
+
+On the very first request, `slot1 == 0`. The strategy treats this as "one full window
+elapsed" → `currentTokens = max`. The bucket starts at capacity; no warm-up needed.
+
+### When to use
+
+- APIs where clients legitimately batch requests (analytics, bulk imports).
+- Endpoints where smooth throughput matters more than hard per-second guarantees.
+- Any scenario where `FIXED_WINDOW` boundary bursts would be problematic.
+
+---
+
+## Comparison
+
+| | `FIXED_WINDOW` | `TOKEN_BUCKET` |
+|---|---|---|
+| Algorithm | Aligned counter reset | Continuous token refill |
+| Burst handling | Allows 2× limit at boundaries | Absorbs bursts up to bucket capacity |
+| Memory per bucket | 1 × `AtomicLong` used | 2 × `AtomicLong` used |
+| Clock alignment | Yes (predictable resets) | No (smooth) |
+| Typical use case | Simple request quotas | APIs with legitimate burst patterns |
+| CAS operations per request | 1 (usually) | 1 (usually) |
+
+Both strategies use the same `Bucket` type. Both are lock-free and allocation-free after
+the bucket is first created.
+
+---
+
+## Adding a custom strategy
+
+Implement `RateLimitStrategy` and wrap it in a `LimitStrategy` enum constant:
+
+```java
+// 1. Implement the strategy
+public final class SlidingWindowStrategy implements RateLimitStrategy {
+ @Override
+ public boolean check(Bucket bucket, LimitConfig cfg, long[] out) {
+ // ... lock-free implementation using bucket.slot0 / slot1
+ return allowed;
+ }
+}
+
+// 2. Add to the enum
+public enum LimitStrategy {
+ FIXED_WINDOW { ... },
+ TOKEN_BUCKET { ... },
+ SLIDING_WINDOW {
+ @Override
+ public RateLimitStrategy create() { return new SlidingWindowStrategy(); }
+ };
+ public abstract RateLimitStrategy create();
+}
+```
+
+The new strategy is immediately available to `@Limit(strategy = LimitStrategy.SLIDING_WINDOW)`
+and `guard.limit("ip", 100, 1, SECONDS, LimitStrategy.SLIDING_WINDOW)`.
+
+### Strategy contract
+
+```java
+public interface RateLimitStrategy {
+ /**
+ * @param bucket pre-allocated per-key state (never null)
+ * @param cfg immutable rule config (limit, windowMs)
+ * @param out out[0] = remaining, out[1] = reset epoch-seconds
+ * @return true = allowed, false = rejected (429)
+ */
+ boolean check(Bucket bucket, LimitConfig cfg, long[] out);
+}
+```
+
+Requirements for custom implementations:
+- **Lock-free** — use `AtomicLong.compareAndSet`; no `synchronized` or `ReentrantLock`.
+- **Stateless** — all mutable state must live in `Bucket.slot0` / `Bucket.slot1`.
+- **No allocation** — `out[]` is the only output channel; do not create objects on the hot path.
+- **Thread-safe** — called concurrently from many virtual threads.
diff --git a/flash-extensions/flash-ext-limiter/pom.xml b/flash-extensions/flash-ext-limiter/pom.xml
new file mode 100644
index 0000000..534cc87
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/pom.xml
@@ -0,0 +1,30 @@
+
+
+ 4.0.0
+
+
+ dev.relism
+ flash-extensions
+ 1.0-SNAPSHOT
+
+
+ flash-ext-limiter
+
+
+
+ dev.relism
+ flash
+
+
+ org.projectlombok
+ lombok
+
+
+ org.junit.jupiter
+ junit-jupiter
+
+
+
+
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Bucket.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Bucket.java
new file mode 100644
index 0000000..89cfbce
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Bucket.java
@@ -0,0 +1,22 @@
+package dev.relism.ext.limiter;
+
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * Pre-allocated per-key rate limit state. Holds two {@link AtomicLong} slots whose
+ * semantics are strategy-specific:
+ *
+ *
+ * - FIXED_WINDOW: {@code slot0} = packed {@code (epoch << 32 | count)},
+ * {@code slot1} unused.
+ * - TOKEN_BUCKET: {@code slot0} = tokens × 1000 (scaled),
+ * {@code slot1} = last-refill timestamp (ms since epoch).
+ *
+ *
+ * Buckets are created once per unique key (via {@link BucketStore}) and reused
+ * for the lifetime of the server — zero allocation on the warm path.
+ */
+public final class Bucket {
+ public final AtomicLong slot0 = new AtomicLong(0L);
+ public final AtomicLong slot1 = new AtomicLong(0L);
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/BucketStore.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/BucketStore.java
new file mode 100644
index 0000000..ad43b12
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/BucketStore.java
@@ -0,0 +1,28 @@
+package dev.relism.ext.limiter;
+
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Thread-safe store of pre-allocated {@link Bucket} instances keyed by partition key.
+ *
+ *
On the warm path (key already seen), {@link #get} performs a single
+ * {@link ConcurrentHashMap} lookup — no allocation. On the cold path (new key),
+ * {@code computeIfAbsent} allocates exactly one {@link Bucket} and inserts it.
+ *
+ *
Buckets accumulate indefinitely; for workloads with unbounded unique keys
+ * (e.g. one-shot crawlers), consider periodic store replacement or a bounded
+ * LRU map implementation.
+ */
+public final class BucketStore {
+
+ private final ConcurrentHashMap map = new ConcurrentHashMap<>();
+
+ /**
+ * Returns the bucket for {@code key}, creating one if absent.
+ * Two threads racing on the same new key are guaranteed to receive the same bucket instance.
+ */
+ public Bucket get(String key) {
+ Bucket b = map.get(key);
+ return b != null ? b : map.computeIfAbsent(key, k -> new Bucket());
+ }
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Guard.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Guard.java
new file mode 100644
index 0000000..a43348a
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Guard.java
@@ -0,0 +1,69 @@
+package dev.relism.ext.limiter;
+
+import dev.relism.routing.Middleware;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Manual rate-limit guard for lambda routes.
+ *
+ * Available via {@link dev.relism.extension.FlashContext}:
+ *
{@code
+ * Guard guard = ctx.require(Guard.class);
+ * }
+ *
+ * {@link #limit} creates a {@link Middleware} that is composed once at route registration
+ * time — the resolver lambda is captured directly from the registry (no runtime map lookup):
+ *
{@code
+ * // 50 req/s per IP — fixed window (default)
+ * app.get("/api/search", handler)
+ * .with(guard.limit("ip", 50, 1, TimeUnit.SECONDS));
+ *
+ * // 10 req/min per authenticated user — token bucket
+ * app.post("/api/export", handler)
+ * .with(guard.limit("auth_user", 10, 1, TimeUnit.MINUTES, LimitStrategy.TOKEN_BUCKET));
+ * }
+ *
+ * The resolver name is looked up once here (at {@code .with(guard.limit(...))} call time,
+ * i.e. during app wiring, not on each request). If the name is not registered,
+ * {@link dev.relism.exceptions.InitializationException} is thrown immediately.
+ */
+public final class Guard {
+
+ private final LimiterConfig config;
+ private final BucketStore store;
+
+ Guard(LimiterConfig config, BucketStore store) {
+ this.config = config;
+ this.store = store;
+ }
+
+ /**
+ * Returns a {@link Middleware} that enforces the given rate limit using
+ * {@link LimitStrategy#FIXED_WINDOW}.
+ *
+ * @param resolverKey name registered via {@link LimiterConfig#registerResolver}
+ * @param requests maximum requests allowed per window
+ * @param window window duration in {@code unit}
+ * @param unit time unit for {@code window}
+ */
+ public Middleware limit(String resolverKey, int requests, long window, TimeUnit unit) {
+ return limit(resolverKey, requests, window, unit, LimitStrategy.FIXED_WINDOW);
+ }
+
+ /**
+ * Returns a {@link Middleware} that enforces the given rate limit with the specified strategy.
+ *
+ * @param resolverKey name registered via {@link LimiterConfig#registerResolver}
+ * @param requests maximum requests allowed per window
+ * @param window window duration in {@code unit}
+ * @param unit time unit for {@code window}
+ * @param strategy rate-limit algorithm
+ */
+ public Middleware limit(String resolverKey, int requests, long window, TimeUnit unit, LimitStrategy strategy) {
+ // Fail-fast: resolve the lambda at wiring time, not at request time.
+ KeyResolver resolver = config.requireResolver(resolverKey);
+ LimitConfig cfg = new LimitConfig(requests, unit.toMillis(window), strategy.create());
+ return LimiterExtension.buildMiddleware(resolver, cfg, store);
+ }
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/KeyResolver.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/KeyResolver.java
new file mode 100644
index 0000000..ef4bb06
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/KeyResolver.java
@@ -0,0 +1,20 @@
+package dev.relism.ext.limiter;
+
+import dev.relism.models.Request;
+
+/**
+ * Extracts a partition key from an incoming request.
+ *
+ *
The resolved key identifies who the rate limit applies to — an IP address,
+ * an authenticated user ID, an API key, etc. Implementations are captured once
+ * at route registration time and called directly (no registry lookup) on every request.
+ *
+ *
{@code
+ * conf.registerResolver("ip", req -> req.header("X-Forwarded-For"));
+ * conf.registerResolver("auth_user", req -> ClaimsHolder.user().sub());
+ * }
+ */
+@FunctionalInterface
+public interface KeyResolver {
+ String resolve(Request req);
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Limit.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Limit.java
new file mode 100644
index 0000000..ea4b484
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/Limit.java
@@ -0,0 +1,45 @@
+package dev.relism.ext.limiter;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Applies a rate limit to a class-based {@link dev.relism.models.RequestHandler}.
+ *
+ * The annotation is processed at boot time by the {@link LimiterExtension} annotation
+ * processor. If {@link #key()} names a resolver that was never registered,
+ * startup fails immediately with {@link dev.relism.exceptions.InitializationException}.
+ *
+ *
{@code
+ * // 100 req/s per client IP — fixed window
+ * @Limit(requests = 100, window = 1)
+ * public class SearchHandler extends RequestHandler { ... }
+ *
+ * // 20 req/min per authenticated user — token bucket
+ * @Limit(key = "auth_user", requests = 20, window = 1, windowUnit = TimeUnit.MINUTES,
+ * strategy = LimitStrategy.TOKEN_BUCKET)
+ * public class ExpensiveHandler extends RequestHandler { ... }
+ * }
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Limit {
+
+ /** Name of the resolver registered via {@link LimiterConfig#registerResolver}. Default: {@code "ip"}. */
+ String key() default "ip";
+
+ /** Maximum number of requests allowed per {@link #window()}. */
+ int requests();
+
+ /** Window duration in {@link #windowUnit()} units. */
+ long window();
+
+ /** Unit for {@link #window()}. Default: {@link TimeUnit#SECONDS}. */
+ TimeUnit windowUnit() default TimeUnit.SECONDS;
+
+ /** Rate-limit algorithm. Default: {@link LimitStrategy#FIXED_WINDOW}. */
+ LimitStrategy strategy() default LimitStrategy.FIXED_WINDOW;
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimitConfig.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimitConfig.java
new file mode 100644
index 0000000..2e63f19
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimitConfig.java
@@ -0,0 +1,11 @@
+package dev.relism.ext.limiter;
+
+/**
+ * Immutable configuration snapshot for a single rate-limit rule.
+ * Created once at boot time and captured directly in the middleware closure.
+ *
+ * @param limit Maximum allowed requests per window.
+ * @param windowMs Window duration in milliseconds.
+ * @param strategy Strategy instance bound to this rule (one per rule, not shared).
+ */
+public record LimitConfig(int limit, long windowMs, RateLimitStrategy strategy) {}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimitStrategy.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimitStrategy.java
new file mode 100644
index 0000000..668f69b
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimitStrategy.java
@@ -0,0 +1,45 @@
+package dev.relism.ext.limiter;
+
+import dev.relism.ext.limiter.strategy.FixedWindowStrategy;
+import dev.relism.ext.limiter.strategy.TokenBucketStrategy;
+
+/**
+ * Enumeration of built-in rate-limit algorithms. Each constant is a factory
+ * for its corresponding {@link RateLimitStrategy} implementation.
+ *
+ * New algorithms can be added here without touching the rest of the extension.
+ * The enum value is referenced by {@link Limit#strategy()} so user code refers
+ * to the algorithm by name ({@code LimitStrategy.FIXED_WINDOW}) rather than
+ * instantiating strategy objects directly.
+ *
+ *
{@code
+ * @Limit(key = "ip", requests = 100, window = 1, strategy = LimitStrategy.TOKEN_BUCKET)
+ * public class SearchHandler extends RequestHandler { ... }
+ * }
+ */
+public enum LimitStrategy {
+
+ /**
+ * Fixed-window counter: resets to zero at each clock-aligned window boundary.
+ * Simple, minimal memory, but allows up to 2× the limit in bursts that straddle
+ * two windows.
+ */
+ FIXED_WINDOW {
+ @Override
+ public RateLimitStrategy create() { return new FixedWindowStrategy(); }
+ },
+
+ /**
+ * Token-bucket: tokens refill continuously. Smooth burst absorption — a client
+ * that was idle accumulates tokens and can fire a short burst, but sustained
+ * excess traffic is rejected. Preferred for API endpoints where occasional bursts
+ * are legitimate.
+ */
+ TOKEN_BUCKET {
+ @Override
+ public RateLimitStrategy create() { return new TokenBucketStrategy(); }
+ };
+
+ /** Creates a fresh, stateless {@link RateLimitStrategy} instance for this algorithm. */
+ public abstract RateLimitStrategy create();
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimiterConfig.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimiterConfig.java
new file mode 100644
index 0000000..c2cb1c5
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimiterConfig.java
@@ -0,0 +1,82 @@
+package dev.relism.ext.limiter;
+
+import dev.relism.exceptions.InitializationException;
+
+import java.net.InetSocketAddress;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * Extension configuration: holds the named {@link KeyResolver} registry.
+ *
+ * Resolvers are registered during the config phase (before {@code install}).
+ * After {@link LimiterExtension#install} is called, the registry is consulted once per
+ * route/handler at boot to capture the resolver lambda directly into the middleware closure.
+ * There is no map lookup on the request hot-path.
+ *
+ *
The built-in {@code "ip"} resolver is always present and extracts the client IP from
+ * {@code X-Forwarded-For} (first address) or {@code X-Real-IP}. Override it with
+ * {@code registerResolver("ip", ...)} if needed.
+ *
+ *
{@code
+ * LimiterConfig conf = new LimiterConfig()
+ * .registerResolver("auth_user", req -> {
+ * // custom logic — e.g. extract sub from ClaimsHolder
+ * return ClaimsHolder.exists() ? ClaimsHolder.user().sub() : "anonymous";
+ * });
+ *
+ * app.install(new LimiterExtension(conf));
+ * }
+ */
+public final class LimiterConfig {
+
+ private final Map resolvers = new LinkedHashMap<>();
+
+ public LimiterConfig() {
+ // Built-in mandatory "ip" resolver.
+ // Resolution order (standard reverse-proxy chain):
+ // 1. X-Forwarded-For — first address (client behind one or more proxies)
+ // 2. X-Real-IP — single forwarded IP (nginx proxy_set_header X-Real-IP)
+ // 3. Socket address — direct connection, no proxy headers (zero alloc: the
+ // InetSocketAddress already exists from accept(); only
+ // getHostAddress() allocates a String, and only when reached)
+ resolvers.put("ip", req -> {
+ String xff = req.header("X-Forwarded-For");
+ if (xff != null) {
+ int comma = xff.indexOf(',');
+ return comma > 0 ? xff.substring(0, comma).strip() : xff.strip();
+ }
+ String xri = req.header("X-Real-IP");
+ if (xri != null) return xri.strip();
+ InetSocketAddress addr = req.remoteAddress();
+ return addr != null ? addr.getAddress().getHostAddress() : "unknown";
+ });
+ }
+
+ /**
+ * Registers (or replaces) a named key resolver. Returns {@code this} for fluent chaining.
+ *
+ * @param name identifier referenced by {@link Limit#key()} and {@link Guard#limit}
+ * @param resolver lambda that extracts the partition key from a request
+ */
+ public LimiterConfig registerResolver(String name, KeyResolver resolver) {
+ if (name == null || name.isBlank()) throw new IllegalArgumentException("Resolver name must not be blank");
+ if (resolver == null) throw new IllegalArgumentException("Resolver must not be null");
+ resolvers.put(name, resolver);
+ return this;
+ }
+
+ /**
+ * Returns the resolver for {@code name}.
+ *
+ * @throws InitializationException if no resolver with that name has been registered —
+ * checked at boot time so misconfigurations surface immediately.
+ */
+ KeyResolver requireResolver(String name) {
+ KeyResolver r = resolvers.get(name);
+ if (r == null) throw new InitializationException(
+ "Rate-limit resolver \"" + name + "\" is not registered. " +
+ "Call LimiterConfig.registerResolver(\"" + name + "\", req -> ...) before install.");
+ return r;
+ }
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimiterExtension.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimiterExtension.java
new file mode 100644
index 0000000..c025886
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/LimiterExtension.java
@@ -0,0 +1,130 @@
+package dev.relism.ext.limiter;
+
+import dev.relism.extension.FlashContext;
+import dev.relism.extension.FlashExtension;
+import dev.relism.extension.FlashRegistrar;
+import dev.relism.http.HttpStatus;
+import dev.relism.routing.Middleware;
+
+import java.util.List;
+
+/**
+ * Rate-limiting extension for Flash.
+ *
+ * On {@link #install}:
+ *
+ * - Creates a single {@link BucketStore} shared by all rules in this extension instance.
+ * - Provides a {@link Guard} in the {@link FlashContext} for manual use on lambda routes.
+ * - Registers an {@link dev.relism.extension.AnnotationProcessor} for {@link Limit}:
+ * reads the annotation once per handler class at boot, resolves the key lambda
+ * from the registry fail-fast, then returns a pre-compiled middleware
+ * that captures the lambda and config directly — zero map lookups at request time.
+ *
+ *
+ * Annotation-based (class handlers)
+ * {@code
+ * @Limit(requests = 100, window = 1) // 100 req/s per IP
+ * public class SearchHandler extends RequestHandler { ... }
+ *
+ * @Limit(key = "auth_user", requests = 20, window = 1,
+ * windowUnit = TimeUnit.MINUTES,
+ * strategy = LimitStrategy.TOKEN_BUCKET)
+ * public class ReportHandler extends RequestHandler { ... }
+ * }
+ *
+ * Lambda routes (via Guard)
+ * {@code
+ * LimiterConfig conf = new LimiterConfig()
+ * .registerResolver("auth_user", req -> ClaimsHolder.user().sub());
+ *
+ * app.install(new LimiterExtension(conf));
+ *
+ * Guard guard = app.ctx().require(Guard.class);
+ * app.get("/api/search", handler).with(guard.limit("ip", 50, 1, TimeUnit.SECONDS));
+ * }
+ *
+ * Installation order matters
+ * Install {@code LimiterExtension} before authentication extensions so that
+ * rate-limit checks short-circuit before expensive token validation on over-limit requests.
+ */
+public final class LimiterExtension implements FlashExtension {
+
+ private final LimiterConfig config;
+
+ /** Installs with default config (only the built-in {@code "ip"} resolver). */
+ public LimiterExtension() {
+ this(new LimiterConfig());
+ }
+
+ /** Installs with a custom {@link LimiterConfig} (custom resolvers, etc.). */
+ public LimiterExtension(LimiterConfig config) {
+ this.config = config;
+ }
+
+ @Override
+ public void install(FlashRegistrar app, FlashContext ctx) {
+ BucketStore store = new BucketStore();
+ Guard guard = new Guard(config, store);
+
+ ctx.provide(Guard.class, guard);
+ ctx.provide(LimiterConfig.class, config);
+
+ // Annotation processor: runs once per class-based handler at boot.
+ ctx.addAnnotationProcessor(handlerClass -> {
+ Limit ann = handlerClass.getAnnotation(Limit.class);
+ if (ann == null) return List.of();
+
+ // Fail-fast: if the key is unknown the server refuses to start.
+ KeyResolver resolver = config.requireResolver(ann.key());
+ LimitConfig cfg = new LimitConfig(
+ ann.requests(),
+ ann.windowUnit().toMillis(ann.window()),
+ ann.strategy().create()
+ );
+
+ return List.of(buildMiddleware(resolver, cfg, store));
+ });
+ }
+
+ // ── Package-private helper — shared with Guard ────────────────────────────
+
+ /**
+ * Builds the rate-limit {@link Middleware} from an already-resolved resolver lambda.
+ *
+ * Hot-path design:
+ *
+ * - {@code resolver} is captured directly in the closure — no registry lookup per request.
+ * - {@code resultBuf} is a per-{@link Middleware}-instance ThreadLocal {@code long[2]}.
+ * Allocated once per thread, reused forever — zero per-request allocation.
+ * - Header values ({@code String.valueOf(...)}) are the only unavoidable allocations;
+ * they are tiny and bounded.
+ *
+ */
+ static Middleware buildMiddleware(KeyResolver resolver, LimitConfig cfg, BucketStore store) {
+ // One result buffer per thread, per middleware instance.
+ // ThreadLocal is captured in the closure at boot time — not re-created per request.
+ ThreadLocal resultBuf = ThreadLocal.withInitial(() -> new long[2]);
+
+ return next -> (req, res) -> {
+ String key = resolver.resolve(req);
+ Bucket bucket = store.get(key);
+ long[] out = resultBuf.get();
+
+ boolean allowed = cfg.strategy().check(bucket, cfg, out);
+
+ // Always inject rate-limit headers — useful even on allowed requests.
+ res.header("X-RateLimit-Limit", String.valueOf(cfg.limit()));
+ res.header("X-RateLimit-Remaining", String.valueOf(out[0]));
+ res.header("X-RateLimit-Reset", String.valueOf(out[1]));
+
+ if (!allowed) {
+ long retryAfter = Math.max(1L, out[1] - System.currentTimeMillis() / 1000L);
+ res.status(HttpStatus.TOO_MANY_REQUESTS)
+ .header("Retry-After", String.valueOf(retryAfter));
+ return "Too Many Requests";
+ }
+
+ return next.handle(req, res);
+ };
+ }
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/RateLimitStrategy.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/RateLimitStrategy.java
new file mode 100644
index 0000000..3434f49
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/RateLimitStrategy.java
@@ -0,0 +1,34 @@
+package dev.relism.ext.limiter;
+
+/**
+ * Contract for a rate-limit algorithm. Implementations must be:
+ *
+ * - Lock-free — rely only on {@link java.util.concurrent.atomic.AtomicLong} CAS operations.
+ * - Stateless — all mutable state lives in the {@link Bucket}; the strategy itself
+ * holds no instance fields so the same object can be shared across threads and rules.
+ *
+ *
+ * Called on every request — must not allocate on the hot path.
+ *
+ * @see dev.relism.ext.limiter.strategy.FixedWindowStrategy
+ * @see dev.relism.ext.limiter.strategy.TokenBucketStrategy
+ */
+public interface RateLimitStrategy {
+
+ /**
+ * Checks whether this request is within the limit and updates the bucket atomically.
+ *
+ *
On return, {@code out} contains:
+ *
+ * - {@code out[0]} — remaining allowed requests in the current window (≥ 0).
+ * - {@code out[1]} — Unix epoch seconds at which the quota resets (for {@code X-RateLimit-Reset}
+ * and {@code Retry-After} headers).
+ *
+ *
+ * @param bucket per-key state carrier (pre-allocated, never null)
+ * @param cfg immutable rule configuration
+ * @param out caller-supplied two-element array; values are overwritten on every call
+ * @return {@code true} if the request is within the limit and should proceed
+ */
+ boolean check(Bucket bucket, LimitConfig cfg, long[] out);
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/strategy/FixedWindowStrategy.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/strategy/FixedWindowStrategy.java
new file mode 100644
index 0000000..179aa85
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/strategy/FixedWindowStrategy.java
@@ -0,0 +1,54 @@
+package dev.relism.ext.limiter.strategy;
+
+import dev.relism.ext.limiter.Bucket;
+import dev.relism.ext.limiter.LimitConfig;
+import dev.relism.ext.limiter.RateLimitStrategy;
+
+/**
+ * Fixed-window rate limit: allows up to {@link LimitConfig#limit()} requests per window of
+ * {@link LimitConfig#windowMs()} milliseconds. The window is aligned to clock time
+ * (e.g. 10:00:00 – 10:00:59 for a 60-second window), not sliding.
+ *
+ * Implementation
+ * The entire state fits in a single {@link java.util.concurrent.atomic.AtomicLong}
+ * ({@link Bucket#slot0}), packed as:
+ *
+ * high 32 bits = reduced epoch (currentTimeMs / windowMs) & 0xFFFFFFFFL
+ * low 32 bits = request count in the current window
+ *
+ * Each request performs a single CAS loop — no locks, no allocations.
+ * At a window boundary the CAS atomically resets the counter to 1.
+ *
+ * The reduced epoch wraps every {@code 2^32 × windowMs} milliseconds
+ * (~13,000 years for a 100 ms window) — collision-free in practice.
+ */
+public final class FixedWindowStrategy implements RateLimitStrategy {
+
+ @Override
+ public boolean check(Bucket bucket, LimitConfig cfg, long[] out) {
+ long now = System.currentTimeMillis();
+ long absEpoch = now / cfg.windowMs();
+ int epoch = (int)(absEpoch & 0xFFFFFFFFL); // reduced epoch, collision-safe
+
+ while (true) {
+ long packed = bucket.slot0.get();
+ int storedEpoch = (int)(packed >>> 32);
+ int count = (int)(packed & 0xFFFFFFFFL);
+
+ // Same window: increment; new window: reset to 1.
+ // Cap at limit+1 to guard against int overflow on extreme traffic.
+ int newCount = (storedEpoch == epoch)
+ ? Math.min(count + 1, cfg.limit() + 1)
+ : 1;
+
+ long newPacked = ((long) epoch << 32) | (newCount & 0xFFFFFFFFL);
+
+ if (bucket.slot0.compareAndSet(packed, newPacked)) {
+ out[0] = Math.max(0L, cfg.limit() - newCount);
+ out[1] = (absEpoch + 1) * cfg.windowMs() / 1000L;
+ return newCount <= cfg.limit();
+ }
+ // CAS lost — contention; re-read and retry.
+ }
+ }
+}
diff --git a/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/strategy/TokenBucketStrategy.java b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/strategy/TokenBucketStrategy.java
new file mode 100644
index 0000000..f77545a
--- /dev/null
+++ b/flash-extensions/flash-ext-limiter/src/main/java/dev/relism/ext/limiter/strategy/TokenBucketStrategy.java
@@ -0,0 +1,69 @@
+package dev.relism.ext.limiter.strategy;
+
+import dev.relism.ext.limiter.Bucket;
+import dev.relism.ext.limiter.LimitConfig;
+import dev.relism.ext.limiter.RateLimitStrategy;
+
+/**
+ * Token-bucket rate limit: tokens refill continuously at a rate of
+ * {@code limit / windowMs} tokens per millisecond, up to a maximum of {@code limit} tokens.
+ * Each request consumes one token. Burst traffic is absorbed until the bucket empties.
+ *
+ *
Implementation
+ *
+ * - {@link Bucket#slot0} — current token count scaled by {@value #SCALE}
+ * (allows sub-token precision without floating-point). Starts at 0; treated as
+ * {@code maxScaled} when {@link Bucket#slot1} is 0 (first call → bucket starts full).
+ * - {@link Bucket#slot1} — last-refill timestamp in ms. 0 = not yet initialised.
+ *
+ *
+ * Each request CAS-loops on {@code slot0}; {@code slot1} is updated best-effort after a
+ * successful CAS. The resulting inaccuracy is bounded by the nanoseconds between the CAS
+ * and the {@code set} — negligible and self-correcting for rate limiting purposes.
+ */
+public final class TokenBucketStrategy implements RateLimitStrategy {
+
+ /** Fixed-point scale factor. Stored tokens = actual tokens × SCALE. */
+ static final long SCALE = 1_000L;
+
+ @Override
+ public boolean check(Bucket bucket, LimitConfig cfg, long[] out) {
+ long now = System.currentTimeMillis();
+ long maxScaled = (long) cfg.limit() * SCALE;
+ // Refill rate: limit tokens per windowMs → (limit * SCALE) / windowMs scaled-tokens per ms.
+ // Minimum 1 to ensure progress even for very large windows.
+ long rfPerMs = Math.max(1L, maxScaled / cfg.windowMs());
+
+ while (true) {
+ long lastMs = bucket.slot1.get();
+ long rawTokens = bucket.slot0.get();
+
+ // When slot1 == 0 the bucket has never been used: treat as one full window elapsed
+ // so the bucket starts completely full.
+ long elapsed = (lastMs == 0L) ? cfg.windowMs() : Math.max(0L, now - lastMs);
+ long currentTokens = Math.min(maxScaled, rawTokens + elapsed * rfPerMs);
+
+ if (currentTokens < SCALE) {
+ // Not enough for one token — compute when the next token arrives.
+ long needed = SCALE - currentTokens;
+ long msToNext = (needed + rfPerMs - 1) / rfPerMs; // ceiling division
+ out[0] = 0L;
+ out[1] = (now + msToNext) / 1000L;
+ // Best-effort: advance the refill baseline so the next call gets a fresh elapsed.
+ bucket.slot0.compareAndSet(rawTokens, currentTokens);
+ bucket.slot1.compareAndSet(lastMs, now);
+ return false;
+ }
+
+ long newTokens = currentTokens - SCALE;
+ if (bucket.slot0.compareAndSet(rawTokens, newTokens)) {
+ // Consumed successfully. Update refill baseline best-effort.
+ bucket.slot1.set(now);
+ out[0] = newTokens / SCALE;
+ out[1] = now / 1000L;
+ return true;
+ }
+ // CAS lost — another thread consumed a token concurrently; re-read and retry.
+ }
+ }
+}
diff --git a/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcExtension.java b/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcExtension.java
index 45c7648..9ac0a66 100644
--- a/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcExtension.java
+++ b/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcExtension.java
@@ -1,6 +1,6 @@
package dev.relism.ext.oidc;
-import dev.relism.extension.ExtensionContext;
+import dev.relism.extension.FlashContext;
import dev.relism.extension.FlashExtension;
import dev.relism.extension.FlashRegistrar;
@@ -59,7 +59,7 @@ public class OidcExtension implements FlashExtension {
}
@Override
- public void install(FlashRegistrar app, ExtensionContext ctx) {
+ public void install(FlashRegistrar app, FlashContext ctx) {
// 1. Build the shared HttpClient (optionally with TLS verification disabled)
HttpClient http = buildHttpClient(config);
@@ -294,7 +294,7 @@ public class OidcExtension implements FlashExtension {
* If not present, the {@link NoClassDefFoundError} is caught at the call site.
*/
private static final class OpenApiIntegration {
- static void register(dev.relism.extension.ExtensionContext ctx,
+ static void register(dev.relism.extension.FlashContext ctx,
OidcConfig config, OidcProviderMetadata meta) {
ctx.find(dev.relism.ext.openapi.OpenApiSecurityRegistry.class)
.ifPresent(registry -> registry.add(new dev.relism.ext.openapi.OpenApiSecurityContributor() {
diff --git a/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcMiddleware.java b/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcMiddleware.java
index abcb4ab..58952ae 100644
--- a/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcMiddleware.java
+++ b/flash-extensions/flash-ext-oidc/src/main/java/dev/relism/ext/oidc/OidcMiddleware.java
@@ -13,7 +13,7 @@ import java.util.Map;
import java.util.Optional;
/**
- * Request-level OIDC middleware. Exposed in the {@link dev.relism.extension.ExtensionContext}
+ * Request-level OIDC middleware. Exposed in the {@link dev.relism.extension.FlashContext}
* for manual use on lambda routes; injected automatically for handlers annotated with
* {@link Authenticated} or {@link RolesAllowed}.
*
diff --git a/flash-extensions/flash-ext-openapi/README.md b/flash-extensions/flash-ext-openapi/README.md
index 54e903c..5994374 100644
--- a/flash-extensions/flash-ext-openapi/README.md
+++ b/flash-extensions/flash-ext-openapi/README.md
@@ -121,7 +121,7 @@ builder picks it up automatically — no coupling between extensions.
### How it works
-1. `OpenApiExtension` creates an `OpenApiSecurityRegistry` and exposes it in the `ExtensionContext`.
+1. `OpenApiExtension` creates an `OpenApiSecurityRegistry` and exposes it in the `FlashContext`.
2. `flash-ext-oidc` calls `ctx.find(OpenApiSecurityRegistry.class)` and registers its contributor.
3. At spec build time, `OpenApiBuilder` iterates contributors and injects `security` entries on each
operation whose handler class carries `@Authenticated` or `@RolesAllowed`.
diff --git a/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiExtension.java b/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiExtension.java
index 81fabf1..62bbaaf 100644
--- a/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiExtension.java
+++ b/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiExtension.java
@@ -2,7 +2,7 @@ package dev.relism.ext.openapi;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLMapper;
-import dev.relism.extension.ExtensionContext;
+import dev.relism.extension.FlashContext;
import dev.relism.extension.FlashExtension;
import dev.relism.extension.FlashRegistrar;
import dev.relism.http.ContentType;
@@ -61,7 +61,7 @@ public class OpenApiExtension implements FlashExtension {
}
@Override
- public void install(FlashRegistrar app, ExtensionContext ctx) {
+ public void install(FlashRegistrar app, FlashContext ctx) {
ObjectMapper jsonMapper = ctx.require(ObjectMapper.class);
YAMLMapper yamlMapper = new YAMLMapper();
diff --git a/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityContributor.java b/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityContributor.java
index e74c82a..6e7fe38 100644
--- a/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityContributor.java
+++ b/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityContributor.java
@@ -8,7 +8,7 @@ import java.util.Map;
*
*
Extensions that enforce authentication (e.g. {@code flash-ext-oidc}) implement
* this interface and register an instance into {@link OpenApiSecurityRegistry} via the
- * {@link dev.relism.extension.ExtensionContext}. {@link OpenApiExtension} picks it up
+ * {@link dev.relism.extension.FlashContext}. {@link OpenApiExtension} picks it up
* at spec-generation time — no coupling between the two extensions at install time.
*
*
Multi-tenant: multiple contributors may coexist. For handlers secured by
diff --git a/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityRegistry.java b/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityRegistry.java
index 777ede7..0ed8f0e 100644
--- a/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityRegistry.java
+++ b/flash-extensions/flash-ext-openapi/src/main/java/dev/relism/ext/openapi/OpenApiSecurityRegistry.java
@@ -7,7 +7,7 @@ import java.util.concurrent.CopyOnWriteArrayList;
/**
* Mutable registry of {@link OpenApiSecurityContributor}s.
*
- *
Created and provided to the {@link dev.relism.extension.ExtensionContext} by
+ *
Created and provided to the {@link dev.relism.extension.FlashContext} by
* {@link OpenApiExtension} at install time. Other extensions (e.g. {@code flash-ext-oidc})
* retrieve it via {@code ctx.find(OpenApiSecurityRegistry.class)} and register their
* contributor — the OpenAPI extension then picks it up lazily at spec-generation time.
diff --git a/flash-extensions/flash-ext-routeviewer/routeviewer-ui/pnpm-lock.yaml b/flash-extensions/flash-ext-routeviewer/routeviewer-ui/pnpm-lock.yaml
new file mode 100644
index 0000000..2554816
--- /dev/null
+++ b/flash-extensions/flash-ext-routeviewer/routeviewer-ui/pnpm-lock.yaml
@@ -0,0 +1,1233 @@
+lockfileVersion: '9.0'
+
+settings:
+ autoInstallPeers: true
+ excludeLinksFromLockfile: false
+
+importers:
+
+ .:
+ dependencies:
+ '@dagrejs/dagre':
+ specifier: ^1.1.4
+ version: 1.1.8
+ '@xyflow/react':
+ specifier: ^12.3.6
+ version: 12.10.1(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
+ html-to-image:
+ specifier: ^1.11.11
+ version: 1.11.13
+ react:
+ specifier: ^18.3.1
+ version: 18.3.1
+ react-dom:
+ specifier: ^18.3.1
+ version: 18.3.1(react@18.3.1)
+ devDependencies:
+ '@vitejs/plugin-react':
+ specifier: ^4.3.1
+ version: 4.7.0(vite@5.4.21)
+ vite:
+ specifier: ^5.4.11
+ version: 5.4.21
+
+packages:
+
+ '@babel/code-frame@7.29.0':
+ resolution: {integrity: sha512-9NhCeYjq9+3uxgdtp20LSiJXJvN0FeCtNGpJxuMFZ1Kv3cWUNb6DOhJwUvcVCzKGR66cw4njwM6hrJLqgOwbcw==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/compat-data@7.29.0':
+ resolution: {integrity: sha512-T1NCJqT/j9+cn8fvkt7jtwbLBfLC/1y1c7NtCeXFRgzGTsafi68MRv8yzkYSapBnFA6L3U2VSc02ciDzoAJhJg==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/core@7.29.0':
+ resolution: {integrity: sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/generator@7.29.1':
+ resolution: {integrity: sha512-qsaF+9Qcm2Qv8SRIMMscAvG4O3lJ0F1GuMo5HR/Bp02LopNgnZBC/EkbevHFeGs4ls/oPz9v+Bsmzbkbe+0dUw==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/helper-compilation-targets@7.28.6':
+ resolution: {integrity: sha512-JYtls3hqi15fcx5GaSNL7SCTJ2MNmjrkHXg4FSpOA/grxK8KwyZ5bubHsCq8FXCkua6xhuaaBit+3b7+VZRfcA==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/helper-globals@7.28.0':
+ resolution: {integrity: sha512-+W6cISkXFa1jXsDEdYA8HeevQT/FULhxzR99pxphltZcVaugps53THCeiWA8SguxxpSp3gKPiuYfSWopkLQ4hw==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/helper-module-imports@7.28.6':
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+ engines: {node: '>=6.9.0'}
+
+ '@babel/helper-module-transforms@7.28.6':
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+ engines: {node: '>=6.9.0'}
+ peerDependencies:
+ '@babel/core': ^7.0.0
+
+ '@babel/helper-plugin-utils@7.28.6':
+ resolution: {integrity: sha512-S9gzZ/bz83GRysI7gAD4wPT/AI3uCnY+9xn+Mx/KPs2JwHJIz1W8PZkg2cqyt3RNOBM8ejcXhV6y8Og7ly/Dug==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/helper-string-parser@7.27.1':
+ resolution: {integrity: sha512-qMlSxKbpRlAridDExk92nSobyDdpPijUq2DW6oDnUqd0iOGxmQjyqhMIihI9+zv4LPyZdRje2cavWPbCbWm3eA==}
+ engines: {node: '>=6.9.0'}
+
+ '@babel/helper-validator-identifier@7.28.5':
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+
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+ '@jridgewell/trace-mapping': 0.3.31
+
+ '@jridgewell/resolve-uri@3.1.2': {}
+
+ '@jridgewell/sourcemap-codec@1.5.5': {}
+
+ '@jridgewell/trace-mapping@0.3.31':
+ dependencies:
+ '@jridgewell/resolve-uri': 3.1.2
+ '@jridgewell/sourcemap-codec': 1.5.5
+
+ '@rolldown/pluginutils@1.0.0-beta.27': {}
+
+ '@rollup/rollup-android-arm-eabi@4.60.0':
+ optional: true
+
+ '@rollup/rollup-android-arm64@4.60.0':
+ optional: true
+
+ '@rollup/rollup-darwin-arm64@4.60.0':
+ optional: true
+
+ '@rollup/rollup-darwin-x64@4.60.0':
+ optional: true
+
+ '@rollup/rollup-freebsd-arm64@4.60.0':
+ optional: true
+
+ '@rollup/rollup-freebsd-x64@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-arm-gnueabihf@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-arm-musleabihf@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-arm64-gnu@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-arm64-musl@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-loong64-gnu@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-loong64-musl@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-ppc64-gnu@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-ppc64-musl@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-riscv64-gnu@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-riscv64-musl@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-s390x-gnu@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-x64-gnu@4.60.0':
+ optional: true
+
+ '@rollup/rollup-linux-x64-musl@4.60.0':
+ optional: true
+
+ '@rollup/rollup-openbsd-x64@4.60.0':
+ optional: true
+
+ '@rollup/rollup-openharmony-arm64@4.60.0':
+ optional: true
+
+ '@rollup/rollup-win32-arm64-msvc@4.60.0':
+ optional: true
+
+ '@rollup/rollup-win32-ia32-msvc@4.60.0':
+ optional: true
+
+ '@rollup/rollup-win32-x64-gnu@4.60.0':
+ optional: true
+
+ '@rollup/rollup-win32-x64-msvc@4.60.0':
+ optional: true
+
+ '@types/babel__core@7.20.5':
+ dependencies:
+ '@babel/parser': 7.29.2
+ '@babel/types': 7.29.0
+ '@types/babel__generator': 7.27.0
+ '@types/babel__template': 7.4.4
+ '@types/babel__traverse': 7.28.0
+
+ '@types/babel__generator@7.27.0':
+ dependencies:
+ '@babel/types': 7.29.0
+
+ '@types/babel__template@7.4.4':
+ dependencies:
+ '@babel/parser': 7.29.2
+ '@babel/types': 7.29.0
+
+ '@types/babel__traverse@7.28.0':
+ dependencies:
+ '@babel/types': 7.29.0
+
+ '@types/d3-color@3.1.3': {}
+
+ '@types/d3-drag@3.0.7':
+ dependencies:
+ '@types/d3-selection': 3.0.11
+
+ '@types/d3-interpolate@3.0.4':
+ dependencies:
+ '@types/d3-color': 3.1.3
+
+ '@types/d3-selection@3.0.11': {}
+
+ '@types/d3-transition@3.0.9':
+ dependencies:
+ '@types/d3-selection': 3.0.11
+
+ '@types/d3-zoom@3.0.8':
+ dependencies:
+ '@types/d3-interpolate': 3.0.4
+ '@types/d3-selection': 3.0.11
+
+ '@types/estree@1.0.8': {}
+
+ '@vitejs/plugin-react@4.7.0(vite@5.4.21)':
+ dependencies:
+ '@babel/core': 7.29.0
+ '@babel/plugin-transform-react-jsx-self': 7.27.1(@babel/core@7.29.0)
+ '@babel/plugin-transform-react-jsx-source': 7.27.1(@babel/core@7.29.0)
+ '@rolldown/pluginutils': 1.0.0-beta.27
+ '@types/babel__core': 7.20.5
+ react-refresh: 0.17.0
+ vite: 5.4.21
+ transitivePeerDependencies:
+ - supports-color
+
+ '@xyflow/react@12.10.1(react-dom@18.3.1(react@18.3.1))(react@18.3.1)':
+ dependencies:
+ '@xyflow/system': 0.0.75
+ classcat: 5.0.5
+ react: 18.3.1
+ react-dom: 18.3.1(react@18.3.1)
+ zustand: 4.5.7(react@18.3.1)
+ transitivePeerDependencies:
+ - '@types/react'
+ - immer
+
+ '@xyflow/system@0.0.75':
+ dependencies:
+ '@types/d3-drag': 3.0.7
+ '@types/d3-interpolate': 3.0.4
+ '@types/d3-selection': 3.0.11
+ '@types/d3-transition': 3.0.9
+ '@types/d3-zoom': 3.0.8
+ d3-drag: 3.0.0
+ d3-interpolate: 3.0.1
+ d3-selection: 3.0.0
+ d3-zoom: 3.0.0
+
+ baseline-browser-mapping@2.10.11: {}
+
+ browserslist@4.28.1:
+ dependencies:
+ baseline-browser-mapping: 2.10.11
+ caniuse-lite: 1.0.30001781
+ electron-to-chromium: 1.5.326
+ node-releases: 2.0.36
+ update-browserslist-db: 1.2.3(browserslist@4.28.1)
+
+ caniuse-lite@1.0.30001781: {}
+
+ classcat@5.0.5: {}
+
+ convert-source-map@2.0.0: {}
+
+ d3-color@3.1.0: {}
+
+ d3-dispatch@3.0.1: {}
+
+ d3-drag@3.0.0:
+ dependencies:
+ d3-dispatch: 3.0.1
+ d3-selection: 3.0.0
+
+ d3-ease@3.0.1: {}
+
+ d3-interpolate@3.0.1:
+ dependencies:
+ d3-color: 3.1.0
+
+ d3-selection@3.0.0: {}
+
+ d3-timer@3.0.1: {}
+
+ d3-transition@3.0.1(d3-selection@3.0.0):
+ dependencies:
+ d3-color: 3.1.0
+ d3-dispatch: 3.0.1
+ d3-ease: 3.0.1
+ d3-interpolate: 3.0.1
+ d3-selection: 3.0.0
+ d3-timer: 3.0.1
+
+ d3-zoom@3.0.0:
+ dependencies:
+ d3-dispatch: 3.0.1
+ d3-drag: 3.0.0
+ d3-interpolate: 3.0.1
+ d3-selection: 3.0.0
+ d3-transition: 3.0.1(d3-selection@3.0.0)
+
+ debug@4.4.3:
+ dependencies:
+ ms: 2.1.3
+
+ electron-to-chromium@1.5.326: {}
+
+ esbuild@0.21.5:
+ optionalDependencies:
+ '@esbuild/aix-ppc64': 0.21.5
+ '@esbuild/android-arm': 0.21.5
+ '@esbuild/android-arm64': 0.21.5
+ '@esbuild/android-x64': 0.21.5
+ '@esbuild/darwin-arm64': 0.21.5
+ '@esbuild/darwin-x64': 0.21.5
+ '@esbuild/freebsd-arm64': 0.21.5
+ '@esbuild/freebsd-x64': 0.21.5
+ '@esbuild/linux-arm': 0.21.5
+ '@esbuild/linux-arm64': 0.21.5
+ '@esbuild/linux-ia32': 0.21.5
+ '@esbuild/linux-loong64': 0.21.5
+ '@esbuild/linux-mips64el': 0.21.5
+ '@esbuild/linux-ppc64': 0.21.5
+ '@esbuild/linux-riscv64': 0.21.5
+ '@esbuild/linux-s390x': 0.21.5
+ '@esbuild/linux-x64': 0.21.5
+ '@esbuild/netbsd-x64': 0.21.5
+ '@esbuild/openbsd-x64': 0.21.5
+ '@esbuild/sunos-x64': 0.21.5
+ '@esbuild/win32-arm64': 0.21.5
+ '@esbuild/win32-ia32': 0.21.5
+ '@esbuild/win32-x64': 0.21.5
+
+ escalade@3.2.0: {}
+
+ fsevents@2.3.3:
+ optional: true
+
+ gensync@1.0.0-beta.2: {}
+
+ html-to-image@1.11.13: {}
+
+ js-tokens@4.0.0: {}
+
+ jsesc@3.1.0: {}
+
+ json5@2.2.3: {}
+
+ loose-envify@1.4.0:
+ dependencies:
+ js-tokens: 4.0.0
+
+ lru-cache@5.1.1:
+ dependencies:
+ yallist: 3.1.1
+
+ ms@2.1.3: {}
+
+ nanoid@3.3.11: {}
+
+ node-releases@2.0.36: {}
+
+ picocolors@1.1.1: {}
+
+ postcss@8.5.8:
+ dependencies:
+ nanoid: 3.3.11
+ picocolors: 1.1.1
+ source-map-js: 1.2.1
+
+ react-dom@18.3.1(react@18.3.1):
+ dependencies:
+ loose-envify: 1.4.0
+ react: 18.3.1
+ scheduler: 0.23.2
+
+ react-refresh@0.17.0: {}
+
+ react@18.3.1:
+ dependencies:
+ loose-envify: 1.4.0
+
+ rollup@4.60.0:
+ dependencies:
+ '@types/estree': 1.0.8
+ optionalDependencies:
+ '@rollup/rollup-android-arm-eabi': 4.60.0
+ '@rollup/rollup-android-arm64': 4.60.0
+ '@rollup/rollup-darwin-arm64': 4.60.0
+ '@rollup/rollup-darwin-x64': 4.60.0
+ '@rollup/rollup-freebsd-arm64': 4.60.0
+ '@rollup/rollup-freebsd-x64': 4.60.0
+ '@rollup/rollup-linux-arm-gnueabihf': 4.60.0
+ '@rollup/rollup-linux-arm-musleabihf': 4.60.0
+ '@rollup/rollup-linux-arm64-gnu': 4.60.0
+ '@rollup/rollup-linux-arm64-musl': 4.60.0
+ '@rollup/rollup-linux-loong64-gnu': 4.60.0
+ '@rollup/rollup-linux-loong64-musl': 4.60.0
+ '@rollup/rollup-linux-ppc64-gnu': 4.60.0
+ '@rollup/rollup-linux-ppc64-musl': 4.60.0
+ '@rollup/rollup-linux-riscv64-gnu': 4.60.0
+ '@rollup/rollup-linux-riscv64-musl': 4.60.0
+ '@rollup/rollup-linux-s390x-gnu': 4.60.0
+ '@rollup/rollup-linux-x64-gnu': 4.60.0
+ '@rollup/rollup-linux-x64-musl': 4.60.0
+ '@rollup/rollup-openbsd-x64': 4.60.0
+ '@rollup/rollup-openharmony-arm64': 4.60.0
+ '@rollup/rollup-win32-arm64-msvc': 4.60.0
+ '@rollup/rollup-win32-ia32-msvc': 4.60.0
+ '@rollup/rollup-win32-x64-gnu': 4.60.0
+ '@rollup/rollup-win32-x64-msvc': 4.60.0
+ fsevents: 2.3.3
+
+ scheduler@0.23.2:
+ dependencies:
+ loose-envify: 1.4.0
+
+ semver@6.3.1: {}
+
+ source-map-js@1.2.1: {}
+
+ update-browserslist-db@1.2.3(browserslist@4.28.1):
+ dependencies:
+ browserslist: 4.28.1
+ escalade: 3.2.0
+ picocolors: 1.1.1
+
+ use-sync-external-store@1.6.0(react@18.3.1):
+ dependencies:
+ react: 18.3.1
+
+ vite@5.4.21:
+ dependencies:
+ esbuild: 0.21.5
+ postcss: 8.5.8
+ rollup: 4.60.0
+ optionalDependencies:
+ fsevents: 2.3.3
+
+ yallist@3.1.1: {}
+
+ zustand@4.5.7(react@18.3.1):
+ dependencies:
+ use-sync-external-store: 1.6.0(react@18.3.1)
+ optionalDependencies:
+ react: 18.3.1
diff --git a/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/layout.js b/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/layout.js
index aa946ea..a68b323 100644
--- a/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/layout.js
+++ b/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/layout.js
@@ -16,7 +16,7 @@ const ROOT_GAP = 48 // vertical gap between independent subtrees (different
const MARGIN_X = 60
const MARGIN_Y = 60
-const ABSTRACT_W = 160
+const ABSTRACT_W = 220
const ABSTRACT_H = 50
const CONCRETE_W = 260
const LAMBDA_W = 230
diff --git a/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/nodes/HandlerNode.jsx b/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/nodes/HandlerNode.jsx
index 338c720..9402359 100644
--- a/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/nodes/HandlerNode.jsx
+++ b/flash-extensions/flash-ext-routeviewer/routeviewer-ui/src/nodes/HandlerNode.jsx
@@ -1,5 +1,11 @@
import { Handle, Position } from '@xyflow/react'
+// Invisible handles — React Flow needs them as edge anchor points,
+// but they must not appear as interactive dots in the read-only graph.
+const HANDLE_STYLE = { opacity: 0, width: 6, height: 6, pointerEvents: 'none', border: 'none', background: 'transparent' }
+const TARGET_HANDLE =
+const SOURCE_HANDLE =
+
const METHOD_COLORS = {
GET: { bg: '#0d4429', color: '#4ade80' },
POST: { bg: '#172554', color: '#60a5fa' },
@@ -10,15 +16,17 @@ const METHOD_COLORS = {
HEAD: { bg: '#1c1917', color: '#a8a29e' },
}
-// Handles for LR layout: parent flows in from the LEFT, children exit to the RIGHT
-const TARGET_HANDLE =
-const SOURCE_HANDLE =
+// Shared truncation style — applied to any single-line text that can overflow.
+const TRUNCATE = {
+ overflow: 'hidden',
+ textOverflow: 'ellipsis',
+ whiteSpace: 'nowrap',
+}
/**
* Unified handler node — three modes: ABSTRACT, CONCRETE, LAMBDA.
- * Handles are Left (in) / Right (out) for Left-to-Right DAG layout.
+ * No connection handles: the graph is a read-only visualisation.
+ * Text is clamped to the node width and truncated with an ellipsis.
*/
export default function HandlerNode({ data, selected }) {
@@ -30,16 +38,17 @@ export default function HandlerNode({ data, selected }) {
border: selected ? '2px solid #60a5fa' : '1px solid #ef4444',
borderRadius: 8,
padding: '8px 14px',
- width: 160,
- fontFamily: 'system-ui, sans-serif',
+ width: 220,
+ overflow: 'hidden',
boxSizing: 'border-box',
+ fontFamily: 'system-ui, sans-serif',
}}>
{TARGET_HANDLE}
{SOURCE_HANDLE}
ABSTRACT
-
@@ -48,9 +57,9 @@ export default function HandlerNode({ data, selected }) {
// ── LAMBDA ────────────────────────────────────────────────────────────
if (data.isLambda) {
- const method = data.method || 'GET'
- const path = data.path || '/'
- const m = METHOD_COLORS[method] || METHOD_COLORS.OPTIONS
+ const method = data.method || 'GET'
+ const path = data.path || '/'
+ const m = METHOD_COLORS[method] || METHOD_COLORS.OPTIONS
const pathHtml = path.replace(/\{([^}]+)\}/g, '{$1}')
return (
@@ -60,15 +69,16 @@ export default function HandlerNode({ data, selected }) {
borderRadius: 8,
padding: '10px 12px',
width: 230,
- fontFamily: 'system-ui, sans-serif',
+ overflow: 'hidden',
boxSizing: 'border-box',
+ fontFamily: 'system-ui, sans-serif',
}}>
{TARGET_HANDLE}
{SOURCE_HANDLE}
LAMBDA
-
+
@@ -88,6 +98,7 @@ export default function HandlerNode({ data, selected }) {
background: '#1f1a0e', color: '#f6ad55',
fontSize: 8, fontWeight: 600, padding: '1px 4px',
borderRadius: 2, fontFamily: 'monospace',
+ ...TRUNCATE, maxWidth: '100%',
}}>{mw}
))}
HANDLER
-
@@ -125,7 +136,7 @@ export default function HandlerNode({ data, selected }) {
{/* Routes */}
0 ? 8 : 0 }}>
{data.routes?.map((route, i) => {
- const m = METHOD_COLORS[route.method] || METHOD_COLORS.OPTIONS
+ const m = METHOD_COLORS[route.method] || METHOD_COLORS.OPTIONS
const pathHtml = (route.path || '/').replace(
/\{([^}]+)\}/g,
'
{$1}'
@@ -134,6 +145,7 @@ export default function HandlerNode({ data, selected }) {
@@ -159,6 +171,7 @@ export default function HandlerNode({ data, selected }) {
background: '#1f1a0e', color: '#f6ad55',
fontSize: 8, fontWeight: 600, padding: '1px 4px',
borderRadius: 2, fontFamily: 'monospace',
+ ...TRUNCATE, maxWidth: '100%',
}}>{mw}
))}
diff --git a/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/RouteViewerExtension.java b/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/RouteViewerExtension.java
index 8675c4b..60ad14a 100644
--- a/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/RouteViewerExtension.java
+++ b/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/RouteViewerExtension.java
@@ -1,7 +1,7 @@
package dev.relism.ext.routeviewer;
import dev.relism.ext.routeviewer.model.RouteGraph;
-import dev.relism.extension.ExtensionContext;
+import dev.relism.extension.FlashContext;
import dev.relism.extension.FlashExtension;
import dev.relism.extension.FlashRegistrar;
import dev.relism.http.ContentType;
@@ -36,7 +36,7 @@ import dev.relism.http.ContentType;
* }
*
*
All route metadata is collected once at boot time via
- * {@link ExtensionContext#addRouteListener}. Zero overhead on the request hot-path.
+ * {@link FlashContext#addRouteListener}. Zero overhead on the request hot-path.
*/
public class RouteViewerExtension implements FlashExtension {
@@ -55,7 +55,7 @@ public class RouteViewerExtension implements FlashExtension {
public RouteViewerExtension(String path) { this.path = path; }
@Override
- public void install(FlashRegistrar app, ExtensionContext ctx) {
+ public void install(FlashRegistrar app, FlashContext ctx) {
RouteViewerHandler shell = new RouteViewerHandler();
RouteViewerDataHandler data = new RouteViewerDataHandler(graph);
diff --git a/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/model/RouteRecord.java b/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/model/RouteRecord.java
index 34b6691..f0cdaf0 100644
--- a/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/model/RouteRecord.java
+++ b/flash-extensions/flash-ext-routeviewer/src/main/java/dev/relism/ext/routeviewer/model/RouteRecord.java
@@ -47,6 +47,11 @@ public record RouteRecord(
/**
* Walks the superclass chain, stopping before {@code RequestHandler}.
* {@code RequestHandler} is the universal root — showing it adds no information.
+ *
+ *
Names are produced by {@link #displayName(Class)} so that static inner classes
+ * appear as {@code OuterClass.InnerClass} (e.g. {@code PostHandlers.List}) rather
+ * than the ambiguous simple name ({@code List}). This guarantees globally unique
+ * display labels in the React Flow graph regardless of inner-class naming collisions.
*/
private static List buildAbstractionChain(Class cls) {
if (cls == null) return List.of();
@@ -54,12 +59,31 @@ public record RouteRecord(
Class c = cls;
while (c != null && !c.equals(Object.class)) {
if (ROOT_HANDLER.equals(c.getSimpleName())) break;
- chain.add(c.getSimpleName());
+ chain.add(displayName(c));
c = c.getSuperclass();
}
return List.copyOf(chain);
}
+ /**
+ * Returns a human-readable, globally unique display name for a handler class.
+ *
+ *
+ * - Top-level class {@code HtmlHandler} → {@code "HtmlHandler"}
+ * - Static inner class {@code PostHandlers$List} → {@code "PostHandlers.List"}
+ * - Deeply nested {@code A$B$C} → {@code "A.B.C"}
+ *
+ *
+ * Strategy: take {@code c.getName()} (binary name with {@code $} separators),
+ * strip the package prefix, then replace {@code $} with {@code .}.
+ */
+ private static String displayName(Class c) {
+ String binary = c.getName(); // e.g. dev.relism.bench.handler.api.PostHandlers$List
+ int lastDot = binary.lastIndexOf('.');
+ String local = lastDot >= 0 ? binary.substring(lastDot + 1) : binary; // PostHandlers$List
+ return local.replace('$', '.'); // PostHandlers.List
+ }
+
private static List buildPointcuts(Class cls) {
if (cls == null) return List.of();
List pointcuts = new ArrayList<>();
diff --git a/flash-extensions/flash-ext-routeviewer/src/main/resources/routeviewer/app.js b/flash-extensions/flash-ext-routeviewer/src/main/resources/routeviewer/app.js
index 5910655..312f0a7 100644
--- a/flash-extensions/flash-ext-routeviewer/src/main/resources/routeviewer/app.js
+++ b/flash-extensions/flash-ext-routeviewer/src/main/resources/routeviewer/app.js
@@ -1,4 +1,4 @@
-(function(){const t=document.createElement("link").relList;if(t&&t.supports&&t.supports("modulepreload"))return;for(const o of document.querySelectorAll('link[rel="modulepreload"]'))r(o);new MutationObserver(o=>{for(const i of o)if(i.type==="childList")for(const s of i.addedNodes)s.tagName==="LINK"&&s.rel==="modulepreload"&&r(s)}).observe(document,{childList:!0,subtree:!0});function n(o){const i={};return o.integrity&&(i.integrity=o.integrity),o.referrerPolicy&&(i.referrerPolicy=o.referrerPolicy),o.crossOrigin==="use-credentials"?i.credentials="include":o.crossOrigin==="anonymous"?i.credentials="omit":i.credentials="same-origin",i}function r(o){if(o.ep)return;o.ep=!0;const i=n(o);fetch(o.href,i)}})();function Dd(e){return e&&e.__esModule&&Object.prototype.hasOwnProperty.call(e,"default")?e.default:e}var Fd={exports:{}},_s={},Od={exports:{}},te={};/**
+(function(){const t=document.createElement("link").relList;if(t&&t.supports&&t.supports("modulepreload"))return;for(const o of document.querySelectorAll('link[rel="modulepreload"]'))r(o);new MutationObserver(o=>{for(const i of o)if(i.type==="childList")for(const s of i.addedNodes)s.tagName==="LINK"&&s.rel==="modulepreload"&&r(s)}).observe(document,{childList:!0,subtree:!0});function n(o){const i={};return o.integrity&&(i.integrity=o.integrity),o.referrerPolicy&&(i.referrerPolicy=o.referrerPolicy),o.crossOrigin==="use-credentials"?i.credentials="include":o.crossOrigin==="anonymous"?i.credentials="omit":i.credentials="same-origin",i}function r(o){if(o.ep)return;o.ep=!0;const i=n(o);fetch(o.href,i)}})();function Od(e){return e&&e.__esModule&&Object.prototype.hasOwnProperty.call(e,"default")?e.default:e}var Fd={exports:{}},ks={},jd={exports:{}},te={};/**
* @license React
* react.production.min.js
*
@@ -6,7 +6,7 @@
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
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*
@@ -45,7 +45,7 @@ Error generating stack: `+i.message+`
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
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*
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*
* This source code is licensed under the MIT license found in the
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H;(H=z.current)==null||H.update({onPaneContextMenu:e,zoomOnScroll:t,zoomOnPinch:n,panOnScroll:r,panOnScrollSpeed:o,panOnScrollMode:i,zoomOnDoubleClick:s,panOnDrag:l,zoomActivationKeyPressed:j,preventScrolling:m,noPanClassName:x,userSelectionActive:N,noWheelClassName:w,lib:P,onTransformChange:R,connectionInProgress:L,selectionOnDrag:v,paneClickDistance:p})},[e,t,n,r,o,i,s,l,j,m,x,N,w,P,R,L,v,p]),M.jsx("div",{className:"react-flow__renderer",ref:_,style:Zs,children:y})}const c2=e=>({userSelectionActive:e.userSelectionActive,userSelectionRect:e.userSelectionRect});function f2(){const{userSelectionActive:e,userSelectionRect:t}=ne(c2,de);return e&&t?M.jsx("div",{className:"react-flow__selection react-flow__container",style:{width:t.width,height:t.height,transform:`translate(${t.x}px, ${t.y}px)`}}):null}const 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k2=e=>{const{width:t,height:n,x:r,y:o}=bo(e.nodeLookup,{filter:i=>!!i.selected});return{width:ft(t)?t:null,height:ft(n)?n:null,userSelectionActive:e.userSelectionActive,transformString:`translate(${e.transform[0]}px,${e.transform[1]}px) scale(${e.transform[2]}) translate(${r}px,${o}px)`}};function C2({onSelectionContextMenu:e,noPanClassName:t,disableKeyboardA11y:n}){const r=he(),{width:o,height:i,transformString:s,userSelectionActive:l}=ne(k2,de),u=ym(),a=$.useRef(null);$.useEffect(()=>{var m;n||(m=a.current)==null||m.focus({preventScroll:!0})},[n]);const d=!l&&o!==null&&i!==null;if(mm({nodeRef:a,disabled:!d}),!d)return null;const c=e?m=>{const y=r.getState().nodes.filter(w=>w.selected);e(m,y)}:void 0,f=m=>{Object.prototype.hasOwnProperty.call(ws,m.key)&&(m.preventDefault(),u({direction:ws[m.key],factor:m.shiftKey?4:1}))};return M.jsx("div",{className:xe(["react-flow__nodesselection","react-flow__container",t]),style:{transform:s},children:M.jsx("div",{ref:a,className:"react-flow__nodesselection-rect",onContextMenu:c,tabIndex:n?void 0:-1,onKeyDown:n?void 0:f,style:{width:o,height:i}})})}const wd=typeof window<"u"?window:void 0,N2=e=>({nodesSelectionActive:e.nodesSelectionActive,userSelectionActive:e.userSelectionActive});function wm({children:e,onPaneClick:t,onPaneMouseEnter:n,onPaneMouseMove:r,onPaneMouseLeave:o,onPaneContextMenu:i,onPaneScroll:s,paneClickDistance:l,deleteKeyCode:u,selectionKeyCode:a,selectionOnDrag:d,selectionMode:c,onSelectionStart:f,onSelectionEnd:m,multiSelectionKeyCode:y,panActivationKeyCode:w,zoomActivationKeyCode:x,elementsSelectable:h,zoomOnScroll:g,zoomOnPinch:p,panOnScroll:v,panOnScrollSpeed:E,panOnScrollMode:_,zoomOnDoubleClick:N,panOnDrag:P,defaultViewport:L,translateExtent:j,minZoom:z,maxZoom:R,preventScrolling:H,onSelectionContextMenu:C,noWheelClassName:A,noPanClassName:I,disableKeyboardA11y:D,onViewportChange:k,isControlledViewport:S}){const{nodesSelectionActive:T,userSelectionActive:O}=ne(N2,de),F=Ao(a,{target:wd}),W=Ao(w,{target:wd}),V=W||P,U=W||v,Y=d&&V!==!0,Q=F||O||Y;return 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H;(H=z.current)==null||H.update({onPaneContextMenu:e,zoomOnScroll:t,zoomOnPinch:n,panOnScroll:r,panOnScrollSpeed:o,panOnScrollMode:i,zoomOnDoubleClick:s,panOnDrag:l,zoomActivationKeyPressed:j,preventScrolling:m,noPanClassName:x,userSelectionActive:N,noWheelClassName:w,lib:P,onTransformChange:R,connectionInProgress:L,selectionOnDrag:v,paneClickDistance:p})},[e,t,n,r,o,i,s,l,j,m,x,N,w,P,R,L,v,p]),M.jsx("div",{className:"react-flow__renderer",ref:_,style:qs,children:y})}const d2=e=>({userSelectionActive:e.userSelectionActive,userSelectionRect:e.userSelectionRect});function h2(){const{userSelectionActive:e,userSelectionRect:t}=ne(d2,de);return e&&t?M.jsx("div",{className:"react-flow__selection react-flow__container",style:{width:t.width,height:t.height,transform:`translate(${t.x}px, ${t.y}px)`}}):null}const 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0:e.label,M.jsx(Mr,{type:"source",position:n,isConnectable:t})]})}function E2({data:e,isConnectable:t,targetPosition:n=G.Top,sourcePosition:r=G.Bottom}){return M.jsxs(M.Fragment,{children:[M.jsx(Mr,{type:"target",position:n,isConnectable:t}),e==null?void 0:e.label,M.jsx(Mr,{type:"source",position:r,isConnectable:t})]})}function _2(){return null}function k2({data:e,isConnectable:t,targetPosition:n=G.Top}){return M.jsxs(M.Fragment,{children:[M.jsx(Mr,{type:"target",position:n,isConnectable:t}),e==null?void 0:e.label]})}const xs={ArrowUp:{x:0,y:-1},ArrowDown:{x:0,y:1},ArrowLeft:{x:-1,y:0},ArrowRight:{x:1,y:0}},wd={input:S2,default:E2,output:k2,group:_2};function C2(e){var t,n,r,o;return e.internals.handleBounds===void 0?{width:e.width??e.initialWidth??((t=e.style)==null?void 0:t.width),height:e.height??e.initialHeight??((n=e.style)==null?void 0:n.height)}:{width:e.width??((r=e.style)==null?void 0:r.width),height:e.height??((o=e.style)==null?void 0:o.height)}}const N2=e=>{const{width:t,height:n,x:r,y:o}=Bo(e.nodeLookup,{filter:i=>!!i.selected});return{width:ft(t)?t:null,height:ft(n)?n:null,userSelectionActive:e.userSelectionActive,transformString:`translate(${e.transform[0]}px,${e.transform[1]}px) scale(${e.transform[2]}) translate(${r}px,${o}px)`}};function M2({onSelectionContextMenu:e,noPanClassName:t,disableKeyboardA11y:n}){const r=he(),{width:o,height:i,transformString:s,userSelectionActive:l}=ne(N2,de),u=vm(),a=$.useRef(null);$.useEffect(()=>{var m;n||(m=a.current)==null||m.focus({preventScroll:!0})},[n]);const d=!l&&o!==null&&i!==null;if(ym({nodeRef:a,disabled:!d}),!d)return null;const c=e?m=>{const y=r.getState().nodes.filter(w=>w.selected);e(m,y)}:void 0,f=m=>{Object.prototype.hasOwnProperty.call(xs,m.key)&&(m.preventDefault(),u({direction:xs[m.key],factor:m.shiftKey?4:1}))};return 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tN(e){const{getNodes:t}=Yo();$.useEffect(()=>{e.current=()=>{const n=t();if(!n.length)return;const r=Lg(n),o=60,i=Math.max(1920,r.width+o*2),s=Math.max(1080,r.height+o*2),l=Xs(r,i,s,.1,4,o);BC(document.querySelector(".react-flow__viewport"),{backgroundColor:"#0f1117",width:i,height:s,style:{width:i+"px",height:s+"px",transform:`translate(${l.x}px,${l.y}px) scale(${l.zoom})`}}).then(u=>{const a=document.createElement("a");a.download="flash-routes.png",a.href=u,a.click()}).catch(console.error)}},[t,e])}function nN({styledNodes:e,styledEdges:t,onNodesChange:n,onEdgesChange:r,onNodeMouseEnter:o,onNodeMouseLeave:i,showLambdas:s,searchQuery:l,exportRef:u}){const{fitView:a}=Yo();return 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diff --git a/flash-extensions/flash-ext-view/pom.xml b/flash-extensions/flash-ext-view/pom.xml
new file mode 100644
index 0000000..dda326c
--- /dev/null
+++ b/flash-extensions/flash-ext-view/pom.xml
@@ -0,0 +1,44 @@
+
+
+ 4.0.0
+
+
+ dev.relism
+ flash-extensions
+ 1.0-SNAPSHOT
+
+
+ flash-ext-view
+
+
+
+ dev.relism
+ flash
+
+
+
+
+ org.thymeleaf
+ thymeleaf
+ 3.1.2.RELEASE
+ true
+
+
+
+ org.projectlombok
+ lombok
+
+
+ org.junit.jupiter
+ junit-jupiter
+
+
+
+
diff --git a/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/Renderer.java b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/Renderer.java
new file mode 100644
index 0000000..764d9e1
--- /dev/null
+++ b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/Renderer.java
@@ -0,0 +1,98 @@
+package dev.relism.ext.view;
+
+import dev.relism.http.ContentType;
+import dev.relism.models.Response;
+
+/**
+ * Imperative view renderer — the programmatic counterpart to {@link View @View}.
+ *
+ * Retrieve once at boot time in {@link dev.relism.models.RequestHandler#onInit onInit()},
+ * cache in a private field, and call on the hot-path with zero lookup overhead:
+ *
+ *
{@code
+ * @Route(method = HttpMethod.GET, path = "/dashboard")
+ * public class DashboardHandler extends RequestHandler {
+ * private Renderer renderer;
+ * private DashboardService svc;
+ *
+ * @Override protected void onInit() {
+ * renderer = require(Renderer.class);
+ * svc = require(DashboardService.class);
+ * }
+ *
+ * @Override public Object handle(Request req, Response res) throws Exception {
+ * return renderer.view(res, "dashboard", Map.of("data", svc.stats()));
+ * }
+ * }
+ * }
+ *
+ * For lambda handlers, capture {@code Renderer} from the context at registration
+ * time — it is available immediately after {@code ViewExtension} is installed:
+ *
+ *
{@code
+ * app.install(new ViewExtension(engine));
+ * Renderer renderer = app.ctx().require(Renderer.class);
+ * app.get("/about", (req, res) -> renderer.view(res, "about"));
+ * }
+ *
+ * The underlying {@link ViewEngine} is thread-safe after construction — no
+ * synchronization is needed on the hot-path.
+ */
+public final class Renderer {
+
+ private final ViewEngine engine;
+
+ /** Package-private — constructed exclusively by {@link ViewExtension}. */
+ Renderer(ViewEngine engine) {
+ this.engine = engine;
+ }
+
+ // ── Rendering ────────────────────────────────────────────────────────────
+
+ /**
+ * Renders {@code template} with {@code model}, sets the {@code Content-Type}
+ * header to {@code type}, and returns the rendered string as the handler body.
+ */
+ public String view(Response res, String template, Object model, ContentType type) throws Exception {
+ res.setContentType(type);
+ return engine.render(template, model);
+ }
+
+ /**
+ * Renders {@code template} with {@code model} and sets
+ * {@code Content-Type: text/html}.
+ */
+ public String view(Response res, String template, Object model) throws Exception {
+ return view(res, template, model, ContentType.TEXT_HTML);
+ }
+
+ /** Renders {@code template} with a {@code null} model. */
+ public String view(Response res, String template) throws Exception {
+ return view(res, template, null);
+ }
+
+ // ── Template signal ───────────────────────────────────────────────────────
+
+ /**
+ * Creates a deferred {@link Template} signal that will be intercepted by the
+ * {@link View @View} middleware. Use this from handlers that carry {@code @View}
+ * but need to dynamically override the template name or supply a different model.
+ *
+ *
Does not render immediately — rendering happens in the middleware.
+ */
+ public Template template(String name, Object model) {
+ return Template.of(name, model);
+ }
+
+ /** Creates a {@link Template} signal with a {@code null} model. */
+ public Template template(String name) {
+ return Template.of(name);
+ }
+
+ // ── Escape hatch ─────────────────────────────────────────────────────────
+
+ /** Direct access to the underlying {@link ViewEngine} for advanced use cases. */
+ public ViewEngine engine() {
+ return engine;
+ }
+}
diff --git a/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/Template.java b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/Template.java
new file mode 100644
index 0000000..69ac04e
--- /dev/null
+++ b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/Template.java
@@ -0,0 +1,62 @@
+package dev.relism.ext.view;
+
+/**
+ * Explicit render signal returned from a handler to override the template name
+ * and/or model chosen by {@link View @View}.
+ *
+ *
{@code Template} is a lightweight value object — it carries the template
+ * name and an optional model, but performs no rendering itself. The
+ * {@link ViewExtension}-injected middleware detects it at the call site and
+ * delegates to the {@link ViewEngine}.
+ *
+ *
Use {@code Template} when:
+ *
+ * - The handler is annotated with {@code @View} but needs to redirect to a
+ * different template dynamically (e.g. on validation failure).
+ * - A lambda handler or a handler without {@code @View} wants to
+ * trigger rendering without registering the annotation — pair with a
+ * {@link Renderer} captured at construction time.
+ *
+ *
+ * {@code
+ * // Inside a @View-annotated handler — overrides the default template on error
+ * public Object handle(Request req, Response res) {
+ * if (!valid) return Template.of("form-error", Map.of("errors", errors));
+ * return service.findAll(); // falls back to @View template
+ * }
+ *
+ * // Lambda handler — pair with Renderer captured from ctx at boot time
+ * Renderer renderer = ctx.require(Renderer.class);
+ * app.get("/page", (req, res) -> renderer.view(res, "page", model));
+ * }
+ */
+public final class Template {
+
+ private final String name;
+ private final Object model;
+
+ private Template(String name, Object model) {
+ this.name = name;
+ this.model = model;
+ }
+
+ /** Creates a {@code Template} signal with the given name and model. */
+ public static Template of(String name, Object model) {
+ return new Template(name, model);
+ }
+
+ /** Creates a {@code Template} signal with a {@code null} model. */
+ public static Template of(String name) {
+ return new Template(name, null);
+ }
+
+ /** The template name/path to render. */
+ public String name() {
+ return name;
+ }
+
+ /** The model to bind; may be {@code null}. */
+ public Object model() {
+ return model;
+ }
+}
diff --git a/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ThymeleafEngine.java b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ThymeleafEngine.java
new file mode 100644
index 0000000..7a6967a
--- /dev/null
+++ b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ThymeleafEngine.java
@@ -0,0 +1,146 @@
+package dev.relism.ext.view;
+
+import org.thymeleaf.IEngineConfiguration;
+import org.thymeleaf.TemplateEngine;
+import org.thymeleaf.context.Context;
+import org.thymeleaf.context.IExpressionContext;
+import org.thymeleaf.linkbuilder.ILinkBuilder;
+import org.thymeleaf.templatemode.TemplateMode;
+import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
+
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.Map;
+
+/**
+ * {@link ViewEngine} bridge for Thymeleaf 3.x.
+ *
+ * Package-private — instantiated exclusively by {@link ViewEngineType#THYMELEAF}.
+ *
+ *
Default configuration
+ *
+ * - Prefix : {@code /templates/} (classpath-relative)
+ * - Suffix : {@code .html}
+ * - Mode : {@link TemplateMode#HTML}
+ * - Encoding: UTF-8
+ * - Cache : enabled in production, disabled in dev mode
+ * ({@code flash.env=dev} or {@code FLASH_ENV=dev})
+ *
+ *
+ * Link building
+ * Thymeleaf's built-in {@code StandardLinkBuilder} requires an
+ * {@code IWebContext} (servlet context) to resolve context-relative paths
+ * ({@code @{/foo}}). Flash runs standalone, so this engine registers a custom
+ * {@link FlashLinkBuilder} that resolves {@code @{...}} expressions without a
+ * servlet context — path variables and query parameters are supported as usual.
+ *
+ * Model conventions
+ *
+ * - {@link Map} model → each entry is a named Thymeleaf variable.
+ * - Any other non-null value → registered under the key {@code "it"}.
+ * - {@code null} model → empty context.
+ *
+ */
+final class ThymeleafEngine implements ViewEngine {
+
+ private static final String PREFIX = "/templates/";
+ private static final String SUFFIX = ".html";
+ private static final String FRAGMENT = " :: content";
+
+ private final TemplateEngine engine;
+
+ ThymeleafEngine(boolean cacheEnabled) {
+ ClassLoaderTemplateResolver resolver = new ClassLoaderTemplateResolver();
+ resolver.setPrefix(PREFIX);
+ resolver.setSuffix(SUFFIX);
+ resolver.setTemplateMode(TemplateMode.HTML);
+ resolver.setCharacterEncoding("UTF-8");
+ resolver.setCacheable(cacheEnabled);
+
+ this.engine = new TemplateEngine();
+ this.engine.setTemplateResolver(resolver);
+ // Replace the default StandardLinkBuilder (which requires IWebContext)
+ // with our standalone-compatible link builder.
+ this.engine.addLinkBuilder(FlashLinkBuilder.INSTANCE);
+ }
+
+ @Override
+ public String render(String template, Object model, boolean fragment) {
+ Context ctx = new Context();
+ populateContext(ctx, model);
+ return engine.process(fragment ? template + FRAGMENT : template, ctx);
+ }
+
+ private static void populateContext(Context ctx, Object model) {
+ if (model instanceof Map map) {
+ map.forEach((k, v) -> ctx.setVariable(String.valueOf(k), v));
+ } else if (model != null) {
+ ctx.setVariable("it", model);
+ }
+ }
+
+ // ── Link builder ──────────────────────────────────────────────────────────
+
+ /**
+ * Standalone-compatible link builder for Thymeleaf's {@code @{...}} expressions.
+ *
+ * Thymeleaf's built-in {@code StandardLinkBuilder} requires an
+ * {@code IWebContext} (i.e. a servlet container) to resolve context-relative
+ * paths starting with {@code /}. This builder replicates that behaviour without
+ * the servlet dependency:
+ *
+ * - Path variables — {@code @{/posts/{id}(id=${post.id})}} → {@code /posts/abc}
+ * - Query params — {@code @{/search(q=${term})}} → {@code /search?q=hello}
+ * - Mixed — {@code @{/posts/{id}(id=x,p=2)}} → {@code /posts/x?p=2}
+ *
+ * Registered at order {@link Integer#MIN_VALUE} so it takes precedence over
+ * {@code StandardLinkBuilder} ({@code Integer.MAX_VALUE}).
+ */
+ private static final class FlashLinkBuilder implements ILinkBuilder {
+
+ static final FlashLinkBuilder INSTANCE = new FlashLinkBuilder();
+
+ @Override public String getName() { return "flash"; }
+ @Override public Integer getOrder() { return Integer.MIN_VALUE; }
+
+ @Override
+ public String buildLink(IExpressionContext ctx,
+ String base,
+ Map params) {
+ if (base == null) return "";
+ String url = expandPathVars(base, params);
+ return appendQueryString(url, base, params);
+ }
+
+ /** Substitutes {@code {key}} placeholders in the path with their encoded values. */
+ private static String expandPathVars(String base, Map params) {
+ if (params == null || params.isEmpty() || !base.contains("{")) return base;
+ String result = base;
+ for (var e : params.entrySet()) {
+ String placeholder = '{' + e.getKey() + '}';
+ if (result.contains(placeholder) && e.getValue() != null) {
+ result = result.replace(placeholder, encode(String.valueOf(e.getValue())));
+ }
+ }
+ return result;
+ }
+
+ /** Appends parameters that were NOT consumed as path variables as {@code ?k=v&…} pairs. */
+ private static String appendQueryString(String url, String base, Map params) {
+ if (params == null || params.isEmpty()) return url;
+ StringBuilder qs = new StringBuilder();
+ for (var e : params.entrySet()) {
+ if (base.contains('{' + e.getKey() + '}') || e.getValue() == null) continue;
+ qs.append(qs.isEmpty() ? '?' : '&')
+ .append(encode(e.getKey()))
+ .append('=')
+ .append(encode(String.valueOf(e.getValue())));
+ }
+ return qs.isEmpty() ? url : url + qs;
+ }
+
+ private static String encode(String s) {
+ return URLEncoder.encode(s, StandardCharsets.UTF_8).replace("+", "%20");
+ }
+ }
+}
diff --git a/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/View.java b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/View.java
new file mode 100644
index 0000000..31e4dae
--- /dev/null
+++ b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/View.java
@@ -0,0 +1,75 @@
+package dev.relism.ext.view;
+
+import dev.relism.http.ContentType;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Declarative view binding for class-based handlers.
+ *
+ * When {@code ViewExtension} is installed, handlers annotated with {@code @View}
+ * receive an injected middleware that intercepts the handler's return value and
+ * passes it to the {@link ViewEngine} for rendering. The rendered string replaces
+ * the handler's return value as the response body, and {@link #contentType()} is
+ * written to the {@code Content-Type} header.
+ *
+ *
Return-value semantics
+ *
+ * - Return a {@link Template} — overrides both the template name and
+ * the model dynamically (e.g. redirect to a different template on error).
+ * - Return any other non-null value — used as the model; the template name
+ * comes from {@link #value()}.
+ * - Return {@code null} — renders {@link #value()} with a {@code null} model.
+ *
+ *
+ * {@code
+ * @Route(method = HttpMethod.GET, path = "/")
+ * @View("home")
+ * public class HomeHandler extends RequestHandler {
+ * private PostService posts;
+ * @Override protected void onInit() { posts = require(PostService.class); }
+ *
+ * @Override public Object handle(Request req, Response res) {
+ * return Map.of("posts", posts.findAll()); // model → home template
+ * }
+ * }
+ *
+ * // Dynamic template override via Template signal
+ * @View("list")
+ * public class ConditionalHandler extends RequestHandler {
+ * public Object handle(Request req, Response res) {
+ * if (something) return Template.of("error", Map.of("msg", "oops"));
+ * return data; // uses "list" template
+ * }
+ * }
+ * }
+ *
+ * The annotation is inspected via superclass traversal, so a base handler class
+ * can declare the view template and all concrete subclasses inherit it.
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface View {
+
+ /**
+ * Template name or path passed to the {@link ViewEngine}.
+ * The exact format is engine-specific (e.g. {@code "home"}, {@code "views/home.html"}).
+ */
+ String value();
+
+ /**
+ * {@code Content-Type} written to the response.
+ * Defaults to {@link ContentType#TEXT_HTML}.
+ */
+ ContentType contentType() default ContentType.TEXT_HTML;
+
+ /**
+ * If {@code true}, instructs the {@link ViewEngine} to render only a named
+ * fragment inside the template rather than the full page.
+ * Useful for HTMX / partial-update patterns.
+ */
+ boolean fragment() default false;
+}
diff --git a/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewEngine.java b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewEngine.java
new file mode 100644
index 0000000..5287713
--- /dev/null
+++ b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewEngine.java
@@ -0,0 +1,45 @@
+package dev.relism.ext.view;
+
+/**
+ * Contract for template engine integrations.
+ *
+ *
Implement this interface to plug any template engine (Thymeleaf, Jinjava,
+ * Mustache, FreeMarker, …) into the Flash view layer. A single instance is
+ * shared across all handlers, so implementations must be thread-safe.
+ *
+ *
{@code
+ * // Thymeleaf example
+ * ViewEngine thymeleaf = (template, model, fragment) -> {
+ * Context ctx = new Context();
+ * if (model instanceof Map m) m.forEach((k, v) -> ctx.setVariable(k.toString(), v));
+ * else if (model != null) ctx.setVariable("model", model);
+ * return engine.process(fragment ? template + " :: fragment" : template, ctx);
+ * };
+ *
+ * app.install(new ViewExtension(thymeleaf));
+ * }
+ */
+@FunctionalInterface
+public interface ViewEngine {
+
+ /**
+ * Renders {@code template} with the supplied {@code model}.
+ *
+ * @param template the template name or path — engine-specific convention
+ * (e.g. {@code "views/home"}, {@code "home.html"})
+ * @param model the model object passed to the template; may be {@code null}
+ * @param fragment if {@code true}, only a named fragment inside the template
+ * should be rendered (Thymeleaf: {@code template :: fragment},
+ * Mustache: partial name, etc.)
+ * @return the rendered output string
+ * @throws Exception any rendering error — propagated as a 500 by the Flash runtime
+ */
+ String render(String template, Object model, boolean fragment) throws Exception;
+
+ /**
+ * Convenience overload — renders the full template ({@code fragment = false}).
+ */
+ default String render(String template, Object model) throws Exception {
+ return render(template, model, false);
+ }
+}
diff --git a/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewEngineType.java b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewEngineType.java
new file mode 100644
index 0000000..b1bd71a
--- /dev/null
+++ b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewEngineType.java
@@ -0,0 +1,80 @@
+package dev.relism.ext.view;
+
+/**
+ * Managed template engine types supported out-of-the-box by {@link ViewExtension}.
+ *
+ * Pass one of these constants to {@link ViewExtension#ViewExtension(ViewEngineType)}
+ * for zero-boilerplate setup. The extension auto-configures the selected engine with
+ * sensible defaults and validates that the required library is on the runtime classpath,
+ * throwing a descriptive {@link IllegalStateException} at boot time if it is not.
+ *
+ *
{@code
+ * // Zero-boilerplate — Thymeleaf auto-configured with defaults
+ * app.install(new ViewExtension(ViewEngineType.THYMELEAF));
+ * }
+ *
+ * Dev mode
+ * Template caching is disabled when either:
+ *
+ * - the JVM property {@code flash.env} equals {@code dev} (case-insensitive), or
+ * - the environment variable {@code FLASH_ENV} equals {@code dev}.
+ *
+ * In all other cases caching is enabled (production default).
+ *
+ * Adding your own engine
+ * For unsupported engines, implement {@link ViewEngine} directly and use
+ * {@link ViewExtension#ViewExtension(ViewEngine)} instead.
+ */
+public enum ViewEngineType {
+
+ /**
+ * Thymeleaf 3.x — natural HTML templates with server-side rendering.
+ *
+ * Required dependency (add to your {@code pom.xml}):
+ *
{@code
+ *
+ * org.thymeleaf
+ * thymeleaf
+ * 3.1.2.RELEASE
+ *
+ * }
+ *
+ * Default resolver: classpath, prefix {@code /templates/}, suffix {@code .html},
+ * mode {@code HTML}, encoding UTF-8.
+ */
+ THYMELEAF;
+
+ // ── Factory ───────────────────────────────────────────────────────────────
+
+ /**
+ * Instantiates and configures the {@link ViewEngine} for this type.
+ * Called once at {@link ViewExtension#install} time — never on the hot-path.
+ *
+ * @param cacheEnabled whether the engine should cache compiled templates
+ * @throws IllegalStateException if the required library is not on the classpath
+ */
+ ViewEngine createEngine(boolean cacheEnabled) {
+ return switch (this) {
+ case THYMELEAF -> createThymeleaf(cacheEnabled);
+ };
+ }
+
+ // ── Engine factories ──────────────────────────────────────────────────────
+
+ private static ViewEngine createThymeleaf(boolean cacheEnabled) {
+ try {
+ return new ThymeleafEngine(cacheEnabled);
+ } catch (NoClassDefFoundError e) {
+ throw new IllegalStateException("""
+ Thymeleaf is not on the classpath. \
+ Add the following dependency to your pom.xml:
+
+
+ org.thymeleaf
+ thymeleaf
+ 3.1.2.RELEASE
+
+ """, e);
+ }
+ }
+}
diff --git a/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewExtension.java b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewExtension.java
new file mode 100644
index 0000000..458a462
--- /dev/null
+++ b/flash-extensions/flash-ext-view/src/main/java/dev/relism/ext/view/ViewExtension.java
@@ -0,0 +1,166 @@
+package dev.relism.ext.view;
+
+import dev.relism.extension.FlashContext;
+import dev.relism.extension.FlashExtension;
+import dev.relism.extension.FlashRegistrar;
+import dev.relism.http.ContentType;
+import dev.relism.routing.Middleware;
+
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * Installs the view layer into a Flash application.
+ *
+ * Managed mode (recommended)
+ * Pass a {@link ViewEngineType} — the extension auto-configures the engine,
+ * detects dev mode for cache settings, and validates classpath dependencies at boot:
+ * {@code
+ * app.install(new ViewExtension(ViewEngineType.THYMELEAF));
+ * }
+ *
+ * Manual mode (BYOE)
+ * Supply your own {@link ViewEngine} implementation for full control:
+ * {@code
+ * ViewEngine myEngine = (template, model, fragment) -> { ... };
+ * app.install(new ViewExtension(myEngine));
+ * }
+ *
+ * What gets installed
+ *
+ * - {@link ViewEngine} and {@link Renderer} are bound in the {@link FlashContext} —
+ * any handler can retrieve them via {@code require(Renderer.class)}.
+ * - An {@link dev.relism.extension.AnnotationProcessor} is registered: class-based
+ * handlers carrying {@link View @View} receive an injected rendering middleware
+ * that intercepts the handler return value, resolves the template + model, and
+ * delegates to the engine. No boilerplate required in the handler itself.
+ *
+ *
+ * Handler patterns
+ * {@code
+ * // Declarative — annotation drives template selection
+ * @Route(method = HttpMethod.GET, path = "/")
+ * @View("home")
+ * public class HomeHandler extends RequestHandler {
+ * public Object handle(Request req, Response res) {
+ * return Map.of("posts", service.findAll()); // model → home.html
+ * }
+ * }
+ *
+ * // Dynamic override via Template signal
+ * @View("list")
+ * public class ListHandler extends RequestHandler {
+ * public Object handle(Request req, Response res) {
+ * if (error) return Template.of("error", Map.of("msg", "oops"));
+ * return data; // falls back to list.html
+ * }
+ * }
+ *
+ * // Imperative — explicit render call (lambda-friendly)
+ * Renderer renderer = app.ctx().require(Renderer.class);
+ * app.get("/about", (req, res) -> renderer.view(res, "about"));
+ * }
+ *
+ * Dev mode / cache
+ * In managed mode, template caching is disabled when the JVM property
+ * {@code flash.env=dev} or the environment variable {@code FLASH_ENV=dev} is set.
+ *
+ * Cross-extension integration
+ * {@code
+ * ctx.optional(ViewEngine.class).ifPresent(engine -> { ... });
+ * }
+ */
+public final class ViewExtension implements FlashExtension {
+
+ private final ViewEngine engine;
+
+ // ── Constructors ──────────────────────────────────────────────────────────
+
+ /**
+ * Managed mode — auto-configures the engine selected by {@code type}.
+ *
+ * Template caching is enabled unless {@code flash.env=dev} (JVM property)
+ * or {@code FLASH_ENV=dev} (environment variable) is set.
+ *
+ * @param type the engine to use; must have its library on the runtime classpath
+ * @throws IllegalStateException at boot time if the library is missing
+ */
+ public ViewExtension(ViewEngineType type) {
+ this(type.createEngine(!isDevMode()));
+ }
+
+ /**
+ * Manual mode — use a pre-constructed {@link ViewEngine} implementation.
+ * Suitable for custom engines or engines that need non-default configuration.
+ *
+ * @param engine the engine implementation; must be thread-safe
+ */
+ public ViewExtension(ViewEngine engine) {
+ this.engine = Objects.requireNonNull(engine, "ViewEngine must not be null");
+ }
+
+ // ── FlashExtension ────────────────────────────────────────────────────────
+
+ @Override
+ public void install(FlashRegistrar app, FlashContext ctx) {
+ Renderer renderer = new Renderer(engine);
+ ctx.provide(ViewEngine.class, engine);
+ ctx.provide(Renderer.class, renderer);
+
+ ctx.addAnnotationProcessor(handlerClass -> {
+ View view = findView(handlerClass);
+ if (view == null) return List.of();
+
+ String defaultTemplate = view.value();
+ ContentType contentType = view.contentType();
+ boolean fragment = view.fragment();
+
+ // Injected once per handler at boot — zero overhead on the hot-path.
+ // Intercepts the return value: Template signal overrides name+model;
+ // any other value becomes the model for the annotation's template.
+ Middleware renderingMiddleware = next -> (req, res) -> {
+ Object result = next.handle(req, res);
+ String tpl;
+ Object model;
+ if (result instanceof Template t) {
+ tpl = t.name();
+ model = t.model();
+ } else {
+ tpl = defaultTemplate;
+ model = result;
+ }
+ res.setContentType(contentType);
+ return engine.render(tpl, model, fragment);
+ };
+
+ return List.of(renderingMiddleware);
+ });
+ }
+
+ // ── Helpers ───────────────────────────────────────────────────────────────
+
+ /**
+ * Walks the superclass chain to find {@link View @View}.
+ * Supports inheritance: a base handler can declare the view template and
+ * concrete subclasses inherit it without re-annotating.
+ */
+ private static View findView(Class cls) {
+ while (cls != null && !cls.equals(Object.class)) {
+ View v = cls.getAnnotation(View.class);
+ if (v != null) return v;
+ cls = cls.getSuperclass();
+ }
+ return null;
+ }
+
+ /**
+ * Returns {@code true} when running in dev mode.
+ * Checks JVM property {@code flash.env} first, then env var {@code FLASH_ENV}.
+ */
+ private static boolean isDevMode() {
+ String prop = System.getProperty("flash.env");
+ if (prop != null) return "dev".equalsIgnoreCase(prop);
+ String env = System.getenv("FLASH_ENV");
+ return "dev".equalsIgnoreCase(env);
+ }
+}
diff --git a/flash-extensions/pom.xml b/flash-extensions/pom.xml
index c6d1f05..018fb52 100644
--- a/flash-extensions/pom.xml
+++ b/flash-extensions/pom.xml
@@ -18,6 +18,8 @@
flash-ext-openapi
flash-ext-oidc
flash-ext-routeviewer
+ flash-ext-view
+ flash-ext-limiter
diff --git a/flash/src/main/java/dev/relism/HttpServer.java b/flash/src/main/java/dev/relism/HttpServer.java
index 2e67475..30709b8 100644
--- a/flash/src/main/java/dev/relism/HttpServer.java
+++ b/flash/src/main/java/dev/relism/HttpServer.java
@@ -5,11 +5,12 @@ import dev.relism.http.ContentType;
import dev.relism.http.HttpStatus;
import dev.relism.models.*;
import dev.relism.extension.FlashConfiguration;
-import dev.relism.routing.GlobalRouter;
+import dev.relism.routing.AbstractRouter;
import lombok.extern.slf4j.Slf4j;
import java.io.*;
+import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
@@ -21,32 +22,32 @@ import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
/**
- * Pure I/O transport layer. Owns the {@link ServerSocket}, the virtual-thread executor,
- * and the keep-alive accept loop. All routing is delegated to the {@link GlobalRouter}
- * supplied at construction time.
+ * Pure I/O transport layer. Owns the {@link ServerSocket}, the virtual-thread
+ * executor, and the keep-alive accept loop. Routing is delegated to a single
+ * {@link AbstractRouter}.
*
- * This class is package-private — use {@link dev.relism.extension.FlashApp} as the
- * single entry point for creating and configuring a Flash server.
+ *
Package-private : use {@link dev.relism.extension.FlashApp} as the single
+ * entry point.
*/
@Slf4j
class HttpServer implements ServerHandle {
private final FlashConfiguration configuration;
- private final ServerSocket serverSocket;
- private final GlobalRouter globalRouter;
- private final ExecutorService executorService = Executors.newVirtualThreadPerTaskExecutor();
- private final Set activeSockets = ConcurrentHashMap.newKeySet();
+ private final ServerSocket serverSocket;
+ private final AbstractRouter router;
+ private final ExecutorService executorService = Executors.newVirtualThreadPerTaskExecutor();
+ private final Set activeSockets = ConcurrentHashMap.newKeySet();
private volatile boolean stopped = false;
private final CompletableFuture readyFuture = new CompletableFuture<>();
- private static final byte[] HTTP_1_1 = "HTTP/1.1 ".getBytes(StandardCharsets.UTF_8);
- private static final byte[] CRLF = "\r\n".getBytes(StandardCharsets.UTF_8);
- private static final byte[] CONTENT_TYPE = "Content-Type: ".getBytes(StandardCharsets.UTF_8);
- private static final byte[] CONTENT_LENGTH = "Content-Length: ".getBytes(StandardCharsets.UTF_8);
- private static final byte[] CONNECTION_CLOSE = "Connection: close\r\n".getBytes(StandardCharsets.UTF_8);
+ private static final byte[] HTTP_1_1 = "HTTP/1.1 ".getBytes(StandardCharsets.UTF_8);
+ private static final byte[] CRLF = "\r\n".getBytes(StandardCharsets.UTF_8);
+ private static final byte[] CONTENT_TYPE = "Content-Type: ".getBytes(StandardCharsets.UTF_8);
+ private static final byte[] CONTENT_LENGTH = "Content-Length: ".getBytes(StandardCharsets.UTF_8);
+ private static final byte[] CONNECTION_CLOSE = "Connection: close\r\n".getBytes(StandardCharsets.UTF_8);
private static final byte[] CONNECTION_KEEPALIVE = "Connection: keep-alive\r\n".getBytes(StandardCharsets.UTF_8);
- private static final byte[] TRANSFER_CHUNKED = "Transfer-Encoding: chunked\r\n".getBytes(StandardCharsets.UTF_8);
- private static final byte[] FINAL_CHUNK = "0\r\n\r\n".getBytes(StandardCharsets.UTF_8);
+ private static final byte[] TRANSFER_CHUNKED = "Transfer-Encoding: chunked\r\n".getBytes(StandardCharsets.UTF_8);
+ private static final byte[] FINAL_CHUNK = "0\r\n\r\n".getBytes(StandardCharsets.UTF_8);
private static final byte[] UNKNOWN_STATUS_SUFFIX = " Unknown".getBytes(StandardCharsets.UTF_8);
private static final byte[][] DIGITS = new byte[10][1];
@@ -55,20 +56,12 @@ class HttpServer implements ServerHandle {
DIGITS[i] = String.valueOf(i).getBytes(StandardCharsets.UTF_8);
}
- /**
- * Creates the transport with a pre-built router. Called exclusively by
- * {@link dev.relism.extension.FlashApp}.
- *
- * @param configuration server configuration (port, host, buffer sizes)
- * @param globalRouter the fully-wired router to dispatch requests to
- */
- HttpServer(FlashConfiguration configuration, GlobalRouter globalRouter) throws IOException {
+ HttpServer(FlashConfiguration configuration, AbstractRouter router) throws IOException {
this.configuration = configuration;
this.serverSocket = new ServerSocket(configuration.getPort());
- this.globalRouter = globalRouter;
+ this.router = router;
}
- /** Returns a future that completes once the accept loop is running and the server is ready. */
@Override
public CompletableFuture start() {
Thread.ofPlatform().name("flash-accept-loop").daemon(false).start(this::run);
@@ -90,15 +83,10 @@ class HttpServer implements ServerHandle {
}
}
- /** Closes all active connections and shuts down the executor. Returns when complete. */
@Override
public CompletableFuture stop() {
stopped = true;
- try {
- serverSocket.close();
- } catch (IOException e) {
- log.error("Error closing server socket", e);
- }
+ try { serverSocket.close(); } catch (IOException e) { log.error("Error closing server socket", e); }
activeSockets.forEach(s -> { try { s.close(); } catch (IOException ignored) {} });
executorService.shutdown();
try {
@@ -111,7 +99,7 @@ class HttpServer implements ServerHandle {
return CompletableFuture.completedFuture(null);
}
- // ── Hot-path ──────────────────────────────────────────────────────────────
+ // ── Hot-path ─────────────────────────────────────────────────────────────
private void process(Socket socket) {
activeSockets.add(socket);
@@ -119,36 +107,32 @@ class HttpServer implements ServerHandle {
try (socket;
InputStream in = socket.getInputStream();
OutputStream out = new BufferedOutputStream(socket.getOutputStream())) {
- RequestParser parser = new RequestParser(configuration.getMaxHeaderBufferSize());
+ RequestParser parser = new RequestParser(
+ configuration.getMaxHeaderBufferSize(),
+ (InetSocketAddress) socket.getRemoteSocketAddress());
while (!stopped) {
Request request = parser.parse(in);
- if (request == null)
- break;
+ if (request == null) break;
boolean keepAlive = isKeepAlive(request);
-
Response response = new Response(200, ContentType.TEXT_PLAIN);
- RequestHandler handler = globalRouter.route(request);
+
+ RequestHandler handler = router.route(request);
+ if (handler == null) handler = router.getNotFoundHandler();
try {
Object result = handler.handle(request, response);
- if (result instanceof Response r)
- response = r;
- else if (result != null)
- response.setBody(result);
+ if (result instanceof Response r) response = r;
+ else if (result != null) response.setBody(result);
} catch (Exception ex) {
- Object result = globalRouter.resolveExceptionHandler(request).handle(ex, request, response);
- if (result instanceof Response r)
- response = r;
- else if (result != null)
- response.setBody(result);
+ Object result = router.getExceptionHandler().handle(ex, request, response);
+ if (result instanceof Response r) response = r;
+ else if (result != null) response.setBody(result);
}
writeResponse(out, response, keepAlive);
request.drain();
-
- if (!keepAlive)
- break;
+ if (!keepAlive) break;
}
} catch (IOException e) {
if (!stopped) {
@@ -170,11 +154,6 @@ class HttpServer implements ServerHandle {
|| request.headerEquals("Connection", "keep-alive");
}
- /**
- * Writes a complete HTTP response. The fixed-body path (the common case for simple handlers
- * like /plaintext) is kept inline; streaming and chunked bodies are delegated to
- * {@link #writeStreamingBody} so the JIT can optimise this method aggressively.
- */
private static void writeResponse(OutputStream out, Response response, boolean keepAlive) throws IOException {
out.write(HTTP_1_1);
byte[] statusBytes = response.getStatusBytes();
diff --git a/flash/src/main/java/dev/relism/RequestParser.java b/flash/src/main/java/dev/relism/RequestParser.java
index abbfe10..da08682 100644
--- a/flash/src/main/java/dev/relism/RequestParser.java
+++ b/flash/src/main/java/dev/relism/RequestParser.java
@@ -10,6 +10,7 @@ import lombok.extern.slf4j.Slf4j;
import java.io.IOException;
import java.io.InputStream;
+import java.net.InetSocketAddress;
import java.util.Arrays;
/**
@@ -21,15 +22,18 @@ import java.util.Arrays;
public class RequestParser {
private static final int INITIAL_BUFFER_SIZE = 8192;
- private final int maxHeaderBufferSize;
- private final HeaderMap headerMap = new HeaderMap();
+ private final int maxHeaderBufferSize;
+ private final InetSocketAddress remoteAddress; // set once per connection, never changes
+ private final HeaderMap headerMap = new HeaderMap();
private byte[] buffer;
private int bufBase = 0; // absolute start of valid data in buffer
private int bufLen = 0; // number of valid bytes from bufBase
- public RequestParser() { this(64 * 1024); }
- public RequestParser(int maxHeaderBufferSize) {
+ public RequestParser() { this(64 * 1024, null); }
+ public RequestParser(int maxHeaderBufferSize) { this(maxHeaderBufferSize, null); }
+ public RequestParser(int maxHeaderBufferSize, InetSocketAddress remoteAddress) {
this.maxHeaderBufferSize = maxHeaderBufferSize;
+ this.remoteAddress = remoteAddress;
this.buffer = new byte[Math.min(INITIAL_BUFFER_SIZE, maxHeaderBufferSize)];
}
@@ -133,9 +137,9 @@ public class RequestParser {
RequestLine requestLine = new RequestLine(method, pathView, queryView, protocolView, headerMap);
if (isChunked) {
- return Request.forParsed(requestLine, new ChunkedInputStream(in, buffer, bodyStart, preBufLen), -1L, null, 0, 0);
+ return Request.forParsed(requestLine, new ChunkedInputStream(in, buffer, bodyStart, preBufLen), -1L, null, 0, 0, remoteAddress);
}
- return Request.forParsed(requestLine, in, contentLength, buffer, bodyStart, preBufLen);
+ return Request.forParsed(requestLine, in, contentLength, buffer, bodyStart, preBufLen, remoteAddress);
}
private static int findEndOfHeader(byte[] buf, int from, int len) {
diff --git a/flash/src/main/java/dev/relism/ServerHandle.java b/flash/src/main/java/dev/relism/ServerHandle.java
index bec752f..fa72622 100644
--- a/flash/src/main/java/dev/relism/ServerHandle.java
+++ b/flash/src/main/java/dev/relism/ServerHandle.java
@@ -1,26 +1,22 @@
package dev.relism;
import dev.relism.extension.FlashConfiguration;
-import dev.relism.routing.GlobalRouter;
+import dev.relism.routing.AbstractRouter;
import java.io.IOException;
import java.util.concurrent.CompletableFuture;
/**
- * Public handle to the underlying HTTP transport. Returned by {@link #create} so that
- * {@link dev.relism.extension.FlashApp} can start and stop the server without holding
- * a direct reference to the package-private {@link HttpServer}.
+ * Public handle to the underlying HTTP transport. Returned by {@link #create}
+ * so that {@link dev.relism.extension.FlashApp} can start and stop the server
+ * without holding a direct reference to the package-private {@link HttpServer}.
*/
public interface ServerHandle {
CompletableFuture start();
CompletableFuture stop();
- /**
- * Creates the HTTP transport. Called exclusively by
- * {@link dev.relism.extension.FlashApp}.
- */
- static ServerHandle create(FlashConfiguration config, GlobalRouter router) throws IOException {
+ static ServerHandle create(FlashConfiguration config, AbstractRouter router) throws IOException {
return new HttpServer(config, router);
}
}
diff --git a/flash/src/main/java/dev/relism/exceptions/DuplicateNamespaceException.java b/flash/src/main/java/dev/relism/exceptions/DuplicateNamespaceException.java
deleted file mode 100644
index 182898d..0000000
--- a/flash/src/main/java/dev/relism/exceptions/DuplicateNamespaceException.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package dev.relism.exceptions;
-
-public class DuplicateNamespaceException extends RuntimeException {
- public DuplicateNamespaceException(String namespace) {
- super("Router with namespace '" + namespace + "' is already registered.");
- }
-}
diff --git a/flash/src/main/java/dev/relism/exceptions/InitializationException.java b/flash/src/main/java/dev/relism/exceptions/InitializationException.java
new file mode 100644
index 0000000..5a5e084
--- /dev/null
+++ b/flash/src/main/java/dev/relism/exceptions/InitializationException.java
@@ -0,0 +1,18 @@
+package dev.relism.exceptions;
+
+/**
+ * Thrown at boot time when Flash detects a configuration or registration error.
+ *
+ * Fail-fast: a clear crash at startup is always preferable to a server that
+ * starts "empty" and silently drops routes.
+ */
+public class InitializationException extends RuntimeException {
+
+ public InitializationException(String message) {
+ super(message);
+ }
+
+ public InitializationException(String message, Throwable cause) {
+ super(message, cause);
+ }
+}
diff --git a/flash/src/main/java/dev/relism/extension/AnnotationProcessor.java b/flash/src/main/java/dev/relism/extension/AnnotationProcessor.java
index 2744c71..7f0c81d 100644
--- a/flash/src/main/java/dev/relism/extension/AnnotationProcessor.java
+++ b/flash/src/main/java/dev/relism/extension/AnnotationProcessor.java
@@ -14,7 +14,7 @@ import java.util.List;
* valid — processors may also use the call purely for side effects
* (e.g. collecting OpenAPI metadata).
*
- *
Register processors via {@link ExtensionContext#addAnnotationProcessor}.
+ *
Register processors via {@link FlashContext#addAnnotationProcessor}.
*/
@FunctionalInterface
public interface AnnotationProcessor {
diff --git a/flash/src/main/java/dev/relism/extension/FlashApp.java b/flash/src/main/java/dev/relism/extension/FlashApp.java
index 69fb22f..9276c66 100644
--- a/flash/src/main/java/dev/relism/extension/FlashApp.java
+++ b/flash/src/main/java/dev/relism/extension/FlashApp.java
@@ -1,14 +1,15 @@
package dev.relism.extension;
import dev.relism.ServerHandle;
+import dev.relism.exceptions.InitializationException;
import dev.relism.http.HttpMethod;
import dev.relism.models.RequestHandler;
import dev.relism.models.SimpleHandler;
import dev.relism.routing.AbstractRouter;
-import dev.relism.routing.GlobalRouter;
import dev.relism.routing.Middleware;
import dev.relism.routing.Route;
import dev.relism.routing.RouteHandle;
+import dev.relism.routing.routers.fastpathrouter.FastPathRouterImpl;
import java.io.IOException;
import java.util.ArrayList;
@@ -16,98 +17,62 @@ import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.function.Consumer;
-import java.util.stream.Stream;
/**
- * Primary entry point for Flash. Creates and owns both the {@link GlobalRouter} and
- * the {@link HttpServer} (pure I/O transport). All route registration goes through
- * {@code FlashApp} or a {@link FlashScope} — never through the server or router directly.
+ * Single entry point for Flash. Owns one flat {@link FastPathRouterImpl} —
+ * all routes (app-level and scoped) compile into a single FSM at {@link #start()}.
*
- *
Create via the static factories:
- *
{@code
- * FlashApp app = FlashApp.create(8080);
- * FlashApp app = FlashApp.create(FlashConfiguration.builder().port(8080).build());
- * }
+ * Deferred routing
+ * Routes accumulate during the builder phase. At {@code start()}:
+ *
+ * - Global middlewares are prepended to every route
+ * - Annotation processors run for class-based handlers
+ * - Handlers are bound to the {@link FlashContext}
+ * - All routes compile into one FSM — zero prefix scanning at runtime
+ *
*
- * Install extensions, register routes, mount namespaces, then start:
*
{@code
* FlashApp.create(8080)
* .install(new JacksonExtension())
- * .install(new OidcExtension(config))
+ * .use(cors)
* .get("/ping", (req, res) -> "pong")
- * .get("/me", (req, res) -> ClaimsHolder.user().email()).with(oidc.protect())
- * .register(new HomePage()) // @Route + annotation processors applied
- * .scan("dev.example.handlers") // classpath scan, no-arg constructors
- * .mount("/api", scope -> {
- * scope.register(new UserHandler()); // @Authenticated works here
- * scope.get("/health", (req, res) -> "ok");
- * })
+ * .scan("dev.example.handlers")
+ * .mount("/api", scope -> scope.get("/health", (req, res) -> "ok"))
* .start();
* }
- *
- * Auto-flush
- * Calling any registration method returns a {@link RouteHandle}. Calling
- * {@link RouteHandle#with} is optional — if omitted, the route is registered
- * automatically before the next operation or at {@link #start()}. This means
- * trailing {@code .with()} calls are never required for routes with no middleware.
*/
public final class FlashApp implements FlashRegistrar {
- private final GlobalRouter router;
- private final ServerHandle server;
- private final ExtensionContext ctx = new ExtensionContext();
+ private final AbstractRouter router = new FastPathRouterImpl();
+ private final ServerHandle server;
+ private final FlashContext ctx = new FlashContext();
+ private final List globalMiddlewares = new ArrayList<>();
+ private final List deferredRoutes = new ArrayList<>();
- /** The last returned RouteHandle not yet registered — auto-flushed before the next operation. */
private RouteHandle pending;
- /**
- * Global middlewares applied to every route, regardless of how it is registered
- * (lambda, class-based, or via {@link #scan}).
- * Accumulated via {@link #use}; applied outermost in the chain (before injected and
- * explicit middlewares).
- */
- private final List globalMiddlewares = new ArrayList<>();
-
private FlashApp(FlashConfiguration config) {
- this.router = new GlobalRouter();
try {
this.server = ServerHandle.create(config, router);
} catch (IOException e) {
- throw new RuntimeException("Failed to bind server socket on port " + config.getPort(), e);
+ throw new InitializationException("Failed to bind on port " + config.getPort(), e);
}
}
// ── Factories ─────────────────────────────────────────────────────────────
- /**
- * Creates a {@code FlashApp} listening on {@code port} with default configuration.
- *
- * @param port the TCP port to bind
- */
public static FlashApp create(int port) {
return create(FlashConfiguration.builder().port(port).build());
}
- /**
- * Creates a {@code FlashApp} with full server configuration.
- *
- * @param config server configuration (port, host, buffer sizes, etc.)
- */
public static FlashApp create(FlashConfiguration config) {
return new FlashApp(config);
}
// ── Pending flush ─────────────────────────────────────────────────────────
- /**
- * Registers any pending route (from the previous {@code get/post/register} call)
- * with no middleware if it has not already been committed via {@link RouteHandle#with}.
- */
private void flushPending() {
- if (pending != null) {
- pending.ensureRegistered();
- pending = null;
- }
+ if (pending != null) { pending.ensureRegistered(); pending = null; }
}
private RouteHandle
track(RouteHandle
handle) {
@@ -116,15 +81,8 @@ public final class FlashApp implements FlashRegistrar {
return handle;
}
- // ── FlashRegistrar — extension installation ───────────────────────────────
+ // ── Extension installation ────────────────────────────────────────────────
- /**
- * Installs an extension. Extensions receive this {@code FlashApp} as a
- * {@link FlashRegistrar} so they can register routes and expose services.
- *
- * @param ext the extension to install
- * @return {@code this} for chaining
- */
@Override
public FlashApp install(FlashExtension ext) {
flushPending();
@@ -132,34 +90,12 @@ public final class FlashApp implements FlashRegistrar {
return this;
}
- // ── Global middleware ──────────────────────────────────────────────────────
+ // ── Global middleware ─────────────────────────────────────────────────────
/**
- * Registers one or more global middlewares applied to every route on this app,
- * regardless of how the route is registered (lambda, class-based, or via {@link #scan}).
- *
- *
Global middlewares execute outermost — before annotation-injected middlewares
- * (e.g. {@code @Authenticated}) and before any explicit {@link RouteHandle#with} chain.
- * Execution order mirrors the declaration order: the first argument wraps everything else.
- *
- *
Must be called before {@link #start()}. Calling {@code use} after routes have already
- * been registered will not retroactively affect those routes.
- *
- *
{@code
- * Middleware cors = next -> (req, res) -> {
- * res.header("Access-Control-Allow-Origin", "*");
- * if (req.method() == HttpMethod.OPTIONS) { res.status(204); return null; }
- * return next.handle(req, res);
- * };
- *
- * FlashApp.create(8080)
- * .use(cors)
- * .scan("dev.example.handlers")
- * .start();
- * }
- *
- * @param middlewares one or more middlewares to apply globally
- * @return {@code this} for chaining
+ * Registers global middlewares applied to every route — including
+ * routes registered before this call and routes inside mounted scopes.
+ * Order-independent: resolved at {@link #start()}.
*/
public FlashApp use(Middleware... middlewares) {
flushPending();
@@ -167,182 +103,157 @@ public final class FlashApp implements FlashRegistrar {
return this;
}
- /**
- * Prepends global middlewares to an explicit per-route array.
- * Returns {@code explicit} unchanged when no global middlewares have been registered
- * (zero-allocation fast path).
- */
- private Middleware[] withGlobal(Middleware[] explicit) {
- if (globalMiddlewares.isEmpty()) return explicit;
- return Stream.concat(globalMiddlewares.stream(), Arrays.stream(explicit))
- .toArray(Middleware[]::new);
- }
+ // ── Route registration (deferred) ─────────────────────────────────────────
- // ── FlashRegistrar — route registration ───────────────────────────────────
+ @Override public RouteHandle get (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.GET, path, h); }
+ @Override public RouteHandle post (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.POST, path, h); }
+ @Override public RouteHandle put (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.PUT, path, h); }
+ @Override public RouteHandle delete (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.DELETE, path, h); }
+ @Override public RouteHandle patch (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.PATCH, path, h); }
+ @Override public RouteHandle options(String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.OPTIONS, path, h); }
+ @Override public RouteHandle head (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.HEAD, path, h); }
+ @Override public RouteHandle trace (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.TRACE, path, h); }
+ @Override public RouteHandle connect(String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.CONNECT, path, h); }
+ @Override public RouteHandle purge (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.PURGE, path, h); }
- @Override public RouteHandle get (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.GET, path, h); }
- @Override public RouteHandle post (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.POST, path, h); }
- @Override public RouteHandle put (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.PUT, path, h); }
- @Override public RouteHandle delete (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.DELETE, path, h); }
- @Override public RouteHandle patch (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.PATCH, path, h); }
- @Override public RouteHandle options(String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.OPTIONS, path, h); }
- @Override public RouteHandle head (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.HEAD, path, h); }
- @Override public RouteHandle trace (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.TRACE, path, h); }
- @Override public RouteHandle connect(String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.CONNECT, path, h); }
- @Override public RouteHandle purge (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.PURGE, path, h); }
+ private static final Middleware[] NO_MW = new Middleware[0];
- private RouteHandle routeLambda(HttpMethod method, String path, SimpleHandler.FunctionalHandler h) {
- return track(new RouteHandle<>(this, m -> {
- Middleware[] all = withGlobal(m);
- emit(method, path, null, List.of(), all);
- router.doRegister(method, path, h, all);
- }));
+ private RouteHandle lambda(HttpMethod method, String path, SimpleHandler.FunctionalHandler h) {
+ return track(new RouteHandle<>(this, mw ->
+ deferredRoutes.add(new RouteDefinition(method, path, new SimpleHandler(h), NO_MW, mw, false, ctx, "/"))));
}
/**
- * Begins registration of a class-based handler. The class must carry a
- * {@link Route @Route} annotation. All registered {@link AnnotationProcessor}s
- * are run (e.g. to inject {@code @Authenticated} / {@code @RolesAllowed} middleware).
- * Injected middlewares are prepended outermost to any explicit ones passed via
- * {@link RouteHandle#with}.
- *
- * Calling {@link RouteHandle#with} is optional — the route is registered
- * automatically before the next operation or at {@link #start()}.
+ * Registers a class-based handler annotated with {@link Route @Route}.
+ * App-level only — not part of {@link FlashRegistrar}.
*/
- @Override
public RouteHandle register(RequestHandler handler) {
- return track(new RouteHandle<>(this, explicit -> {
- List injected = ctx.processors().stream()
- .flatMap(p -> p.process(handler.getClass()).stream())
- .toList();
- Middleware[] all = Stream.concat(
- globalMiddlewares.stream(),
- Stream.concat(injected.stream(), Arrays.stream(explicit))
- ).toArray(Middleware[]::new);
- Route ann = handler.getClass().getAnnotation(Route.class);
- if (ann != null) emit(ann.method(), ann.path(), handler.getClass(), injected, withGlobal(explicit));
- router.doRegister(handler, all);
- }));
+ Route ann = handler.getClass().getAnnotation(Route.class);
+ if (ann == null)
+ throw new InitializationException(
+ handler.getClass().getName() + " is missing @Route");
+ return track(new RouteHandle<>(this, mw ->
+ deferredRoutes.add(new RouteDefinition(ann.method(), ann.path(), handler, NO_MW, mw, true, ctx, "/"))));
}
- /**
- * Scans {@code packageName} for classes that extend {@link RequestHandler} and
- * carry {@link Route @Route}. Each is instantiated via its no-arg constructor,
- * run through annotation processors, and registered.
- *
- * {@code
- * FlashApp.create(8080)
- * .install(new OidcExtension(config))
- * .scan("dev.example.handlers"); // @Authenticated / @RolesAllowed auto-applied
- * }
- */
@Override
public FlashApp scan(String packageName) {
flushPending();
- PackageScanner.findHandlers(packageName).forEach(cls -> register(instantiate(cls)).ensureRegistered());
+ PackageScanner.findHandlers(packageName).forEach(cls ->
+ register(instantiate(cls)).ensureRegistered());
return this;
}
- // ── Namespace mounting ────────────────────────────────────────────────────
+ // ── Namespace mounting (syntactic sugar — routes go into same flat router) ─
/**
- * Mounts a scoped sub-router under {@code namespace}. The {@code configure} consumer
- * receives a {@link FlashScope} that has its own child {@link ExtensionContext}
- * inheriting all parent services and annotation processors.
- *
- * Routes registered on the scope automatically get the namespace prefix prepended.
- * Annotation processors (e.g. from OIDC) apply identically inside the scope.
- *
- *
{@code
- * app.mount("/api", scope -> {
- * scope.register(new UserHandler()); // @Authenticated works
- * scope.get("/health", (req, res) -> "ok");
- * scope.scan("dev.example.api");
- * });
- * }
- *
- * @param namespace the path prefix (e.g. {@code "/api"})
- * @param configure consumer that registers routes on the scope
+ * Mounts a scoped group of routes under {@code namespace}. The scope is a
+ * pure builder — it prepends the namespace to each path and collects
+ * {@link RouteDefinition}s that merge into this app's single flat router.
*/
public FlashApp mount(String namespace, Consumer configure) {
flushPending();
- FlashScope scope = new FlashScope(new dev.relism.routing.routers.fastpathrouter.FastPathRouterImpl(),
- namespace, ctx);
+ FlashScope scope = new FlashScope(namespace, ctx);
configure.accept(scope);
scope.flush();
- router.mount(namespace, scope.router());
+ deferredRoutes.addAll(scope.routes());
return this;
}
- // ── FlashRegistrar — error handlers ──────────────────────────────────────
+ // ── Error handlers ────────────────────────────────────────────────────────
- @Override
public FlashApp onException(AbstractRouter.ExceptionHandler handler) {
flushPending();
router.onException(handler);
return this;
}
- @Override
public FlashApp onNotFound(SimpleHandler.FunctionalHandler handler) {
flushPending();
router.onNotFound(handler);
return this;
}
- // ── FlashRegistrar — context ──────────────────────────────────────────────
-
@Override
- public ExtensionContext ctx() {
- return ctx;
- }
+ public FlashContext ctx() { return ctx; }
// ── Lifecycle ─────────────────────────────────────────────────────────────
/**
- * Flushes any pending route registration and starts the HTTP server.
- *
- * @return a future that completes once the accept loop is running
+ * Compiles all deferred routes into the flat FSM router, then starts
+ * the HTTP transport. One pass, one router, zero prefix scanning.
*/
public CompletableFuture start() {
flushPending();
+ compile();
return server.start();
}
- /** Stops the HTTP server and closes all active connections. */
- public CompletableFuture stop() {
- return server.stop();
+ public CompletableFuture stop() { return server.stop(); }
+
+ // ── Compilation ──────────────────────────────────────────────────────────
+
+ /**
+ * Compiles all deferred routes. Middleware chain order:
+ * Global → Scope → Annotation (class-based only) → Explicit (.with).
+ */
+ private void compile() {
+ for (RouteDefinition def : deferredRoutes) {
+ List injected;
+ if (def.classBasedHandler()) {
+ injected = def.ctx().processors().stream()
+ .flatMap(p -> p.process(def.handler().getClass()).stream())
+ .toList();
+ def.handler().bind(def.ctx());
+ } else {
+ injected = List.of();
+ }
+
+ Middleware[] all = concat(globalMiddlewares, def.scopeMiddlewares(),
+ injected, def.explicitMiddlewares());
+ emitEvent(def, all);
+ router.doRegister(def.method(), def.path(), def.handler(), all);
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ private void emitEvent(RouteDefinition def, Middleware[] allMiddlewares) {
+ List listeners = def.ctx().routeListeners();
+ if (listeners.isEmpty()) return;
+
+ List> chain = new ArrayList<>(allMiddlewares.length);
+ for (Middleware m : allMiddlewares)
+ chain.add((Class) m.getClass());
+
+ Class handlerClass = def.classBasedHandler() ? def.handler().getClass() : null;
+ RouteEvent event = new RouteEvent(def.method(), def.path(), def.namespace(),
+ "FlashApp", handlerClass, List.copyOf(chain));
+ listeners.forEach(l -> l.onRoute(event));
}
// ── Internals ─────────────────────────────────────────────────────────────
- @SuppressWarnings("unchecked")
+ private static Middleware[] concat(List global, Middleware[] scope,
+ List injected, Middleware[] explicit) {
+ int total = global.size() + scope.length + injected.size() + explicit.length;
+ if (total == 0) return NO_MW;
+ if (total == explicit.length && scope.length == 0) return explicit;
+ Middleware[] all = new Middleware[total];
+ int i = 0;
+ for (Middleware m : global) all[i++] = m;
+ for (Middleware m : scope) all[i++] = m;
+ for (Middleware m : injected) all[i++] = m;
+ System.arraycopy(explicit, 0, all, i, explicit.length);
+ return all;
+ }
+
private static RequestHandler instantiate(Class cls) {
try {
return (RequestHandler) cls.getDeclaredConstructor().newInstance();
} catch (Exception e) {
- throw new RuntimeException("Failed to instantiate handler: " + cls.getName() +
+ throw new InitializationException(
+ "Failed to instantiate " + cls.getName() +
" — ensure it has a public no-arg constructor", e);
}
}
-
- /**
- * Emits a {@link RouteEvent} to all registered {@link RouteListener}s.
- * No-op if no listener has been registered (fast empty-list check).
- * Called once per route at boot time — never on the request hot-path.
- */
- @SuppressWarnings("unchecked")
- private void emit(HttpMethod method, String path, Class handlerClass,
- List injected, Middleware[] explicit) {
- List listeners = ctx.routeListeners();
- if (listeners.isEmpty()) return;
- Middleware[] routerMws = router.routerMiddlewares();
- List> chain = new ArrayList<>(routerMws.length + injected.size() + explicit.length);
- for (Middleware m : routerMws) chain.add((Class) m.getClass());
- for (Middleware m : injected) chain.add((Class) m.getClass());
- for (Middleware m : explicit) chain.add((Class) m.getClass());
- RouteEvent event = new RouteEvent(method, path, router.getNamespace(),
- router.getClass().getSimpleName(), handlerClass, List.copyOf(chain));
- listeners.forEach(l -> l.onRoute(event));
- }
}
diff --git a/flash/src/main/java/dev/relism/extension/ExtensionContext.java b/flash/src/main/java/dev/relism/extension/FlashContext.java
similarity index 54%
rename from flash/src/main/java/dev/relism/extension/ExtensionContext.java
rename to flash/src/main/java/dev/relism/extension/FlashContext.java
index c9200bd..0be26fd 100644
--- a/flash/src/main/java/dev/relism/extension/ExtensionContext.java
+++ b/flash/src/main/java/dev/relism/extension/FlashContext.java
@@ -4,46 +4,42 @@ import java.util.*;
import java.util.stream.Stream;
/**
- * Shared registry passed to every extension during {@link FlashExtension#install}.
- * Extensions use it in two ways:
+ * Central service registry and boot-time hook coordinator.
+ *
+ * Every handler, extension, and scope shares one (or a child of one) {@code FlashContext}.
+ * It provides three capabilities:
*
- * - Service sharing — provide/require typed objects (e.g. {@code ObjectMapper},
- * {@code OpenApiBuilder}) so extensions can build on each other.
- * - Annotation processing — register {@link AnnotationProcessor}s that
- * are invoked for every handler, injecting middleware derived from
- * annotations ({@code @RolesAllowed}, {@code @Authenticated}, etc.).
+ * - Service registry — typed {@link #provide}/{@link #require}/{@link #find}.
+ * - Annotation processors — middleware injection from handler annotations.
+ * - Route listeners — boot-time observation of the route graph.
*
*
- * A child context (created via {@link #child()}) inherits all services and processors
- * from its parent. Services provided and processors added on the child are scoped to it
- * and not visible in the parent or sibling scopes.
+ *
A child context (via {@link #child()}) inherits parent services and processors.
+ * Services provided on the child are scoped and invisible to the parent.
*/
-public class ExtensionContext {
+public class FlashContext {
- private final ExtensionContext parent;
+ private final FlashContext parent;
private final Map, Object> registry = new LinkedHashMap<>();
private final List processors = new ArrayList<>();
private final List routeListeners = new ArrayList<>();
- public ExtensionContext() {
+ public FlashContext() {
this.parent = null;
}
- private ExtensionContext(ExtensionContext parent) {
+ private FlashContext(FlashContext parent) {
this.parent = parent;
}
- /**
- * Creates a child context that inherits this context's services and processors.
- * Services provided and processors added on the child do not affect the parent.
- */
- public ExtensionContext child() {
- return new ExtensionContext(this);
+ /** Creates a child context that inherits this context's services and processors. */
+ public FlashContext child() {
+ return new FlashContext(this);
}
// ── Service registry ─────────────────────────────────────────────────────
- /** Stores {@code instance} under {@code type} for retrieval by other extensions. */
+ /** Stores {@code instance} under {@code type} for retrieval via {@link #require} or {@link #find}. */
public void provide(Class type, T instance) {
registry.put(type, instance);
}
@@ -51,7 +47,8 @@ public class ExtensionContext {
/**
* Retrieves the service registered under {@code type}.
* Checks own scope first, then the parent chain.
- * Throws {@link IllegalStateException} if not found — install order matters.
+ *
+ * @throws IllegalStateException if not found
*/
@SuppressWarnings("unchecked")
public T require(Class type) {
@@ -59,12 +56,12 @@ public class ExtensionContext {
if (val == null && parent != null) val = parent.find(type).orElse(null);
if (val == null)
throw new IllegalStateException(
- "Extension dependency not found: " + type.getSimpleName() +
- " — install the required extension first");
+ "Service not found: " + type.getSimpleName() +
+ " — provide it via FlashContext.provide() or install the required extension");
return val;
}
- /** Returns the service under {@code type}, or empty if not installed in this scope or any parent. */
+ /** Returns the service under {@code type}, or empty if not provided in this scope or any parent. */
@SuppressWarnings("unchecked")
public Optional find(Class type) {
T val = (T) registry.get(type);
@@ -72,21 +69,26 @@ public class ExtensionContext {
return parent != null ? parent.find(type) : Optional.empty();
}
+ /**
+ * Returns the service registered under {@code type} as an {@link Optional},
+ * or {@link Optional#empty()} if not present in this scope or any parent.
+ *
+ * Semantically identical to {@link #find} — prefer this name for expressive call sites
+ * ({@code ctx.optional(ViewEngine.class).ifPresent(...)}). Respects the parent-first
+ * scope hierarchy: own registry is checked first, then the parent chain.
+ */
+ public Optional optional(Class type) {
+ return find(type);
+ }
+
// ── Annotation processors ────────────────────────────────────────────────
- /**
- * Registers an {@link AnnotationProcessor}. Called by extensions during
- * {@link FlashExtension#install}. Processors are invoked in registration order
- * (parent processors first, then own).
- */
+ /** Registers an {@link AnnotationProcessor}. Processors run once per class-based handler at boot. */
public void addAnnotationProcessor(AnnotationProcessor processor) {
processors.add(processor);
}
- /**
- * Returns all processors visible from this context: parent processors first,
- * then processors added directly to this context.
- */
+ /** All processors visible from this context: parent-first, then own. */
List processors() {
if (parent == null) return Collections.unmodifiableList(processors);
List parentProcessors = parent.processors();
@@ -96,22 +98,12 @@ public class ExtensionContext {
// ── Route listeners ──────────────────────────────────────────────────────
- /**
- * Registers a {@link RouteListener} that will be notified once for every route
- * registered on this context's {@link dev.relism.extension.FlashApp} or any
- * {@link dev.relism.extension.FlashScope} that inherits from it.
- *
- * Call this inside {@link FlashExtension#install} to observe all routes.
- * If no listener is registered the emission path is a no-op.
- */
+ /** Registers a boot-time {@link RouteListener}. Zero overhead on the request hot-path. */
public void addRouteListener(RouteListener listener) {
routeListeners.add(listener);
}
- /**
- * Returns all route listeners visible from this context: parent listeners first,
- * then listeners added directly to this context.
- */
+ /** All route listeners visible from this context: parent-first, then own. */
List routeListeners() {
if (parent == null) return Collections.unmodifiableList(routeListeners);
List parentListeners = parent.routeListeners();
diff --git a/flash/src/main/java/dev/relism/extension/FlashExtension.java b/flash/src/main/java/dev/relism/extension/FlashExtension.java
index 5dd7199..d2535ef 100644
--- a/flash/src/main/java/dev/relism/extension/FlashExtension.java
+++ b/flash/src/main/java/dev/relism/extension/FlashExtension.java
@@ -3,17 +3,17 @@ package dev.relism.extension;
/**
* Contract for all Flash extensions. An extension receives a {@link FlashRegistrar}
* (either a {@link FlashApp} or a {@link FlashScope}) so it can register routes and
- * expose shared services via {@link ExtensionContext}.
+ * expose shared services via {@link FlashContext}.
*
* Extensions work identically whether installed at the top-level app or inside a
* mounted scope:
*
*
{@code
* public class RateLimitExtension implements FlashExtension {
- * public void install(FlashRegistrar app, ExtensionContext ctx) {
+ * public void install(FlashRegistrar app, FlashContext ctx) {
* RateLimiter limiter = new RateLimiter(100);
* ctx.provide(RateLimiter.class, limiter);
- * app.onException((ex, req, res) -> { ... });
+ * app.get("/rate-info", (req, res) -> limiter.info());
* }
* }
*
@@ -28,5 +28,5 @@ package dev.relism.extension;
*/
@FunctionalInterface
public interface FlashExtension {
- void install(FlashRegistrar app, ExtensionContext ctx);
+ void install(FlashRegistrar app, FlashContext ctx);
}
diff --git a/flash/src/main/java/dev/relism/extension/FlashRegistrar.java b/flash/src/main/java/dev/relism/extension/FlashRegistrar.java
index f573f6f..7943a0c 100644
--- a/flash/src/main/java/dev/relism/extension/FlashRegistrar.java
+++ b/flash/src/main/java/dev/relism/extension/FlashRegistrar.java
@@ -1,23 +1,17 @@
package dev.relism.extension;
-import dev.relism.models.RequestHandler;
import dev.relism.models.SimpleHandler;
-import dev.relism.routing.AbstractRouter;
import dev.relism.routing.RouteHandle;
/**
* Common registration surface shared by {@link FlashApp} and {@link FlashScope}.
*
- * {@link FlashExtension#install} receives a {@code FlashRegistrar} so that extensions
+ *
{@link FlashExtension#install} receives a {@code FlashRegistrar} so extensions
* work identically whether installed at the top-level app or inside a mounted scope.
*
- *
Route registration follows the auto-flush pattern: calling any registration method
- * without a subsequent {@link RouteHandle#with} is equivalent to calling
- * {@code .with()} with no arguments — the route is registered with no middleware.
- *
*
{@code
* // In an extension:
- * public void install(FlashRegistrar app, ExtensionContext ctx) {
+ * public void install(FlashRegistrar app, FlashContext ctx) {
* app.get("/health", (req, res) -> "ok");
* app.get("/secured", (req, res) -> user()).with(oidc.protect());
* }
@@ -25,11 +19,9 @@ import dev.relism.routing.RouteHandle;
*/
public interface FlashRegistrar {
- // ── Extension installation ────────────────────────────────────────────────
-
FlashRegistrar install(FlashExtension ext);
- // ── Route registration ────────────────────────────────────────────────────
+ // ── Lambda route registration ────────────────────────────────────────────
RouteHandle get (String path, SimpleHandler.FunctionalHandler h);
RouteHandle post (String path, SimpleHandler.FunctionalHandler h);
@@ -43,29 +35,13 @@ public interface FlashRegistrar {
RouteHandle purge (String path, SimpleHandler.FunctionalHandler h);
/**
- * Begins registration of a class-based handler. The class must carry a
- * {@link dev.relism.routing.Route @Route} annotation. Annotation processors
- * (e.g. {@code @Authenticated}, {@code @RolesAllowed}) are applied automatically.
- *
- * Calling {@link RouteHandle#with} is optional — the route is registered
- * automatically before the next operation or at {@code start()}.
- */
- RouteHandle register(RequestHandler h);
-
- /**
- * Scans {@code packageName} for classes that extend {@link RequestHandler} and
- * carry {@link dev.relism.routing.Route @Route}. Each is instantiated via its
+ * Scans {@code packageName} for classes that extend
+ * {@link dev.relism.models.RequestHandler} and carry
+ * {@link dev.relism.routing.Route @Route}. Each is instantiated via its
* no-arg constructor, run through annotation processors, and registered.
*/
FlashRegistrar scan(String packageName);
- // ── Error handlers ────────────────────────────────────────────────────────
-
- FlashRegistrar onException(AbstractRouter.ExceptionHandler h);
- FlashRegistrar onNotFound(SimpleHandler.FunctionalHandler h);
-
- // ── Context access ────────────────────────────────────────────────────────
-
- /** Returns the {@link ExtensionContext} for this registrar (app or scope). */
- ExtensionContext ctx();
+ /** Returns the {@link FlashContext} for this registrar. */
+ FlashContext ctx();
}
diff --git a/flash/src/main/java/dev/relism/extension/FlashScope.java b/flash/src/main/java/dev/relism/extension/FlashScope.java
index ba40e42..ed36729 100644
--- a/flash/src/main/java/dev/relism/extension/FlashScope.java
+++ b/flash/src/main/java/dev/relism/extension/FlashScope.java
@@ -1,62 +1,43 @@
package dev.relism.extension;
+import dev.relism.exceptions.InitializationException;
import dev.relism.http.HttpMethod;
import dev.relism.models.RequestHandler;
import dev.relism.models.SimpleHandler;
-import dev.relism.routing.AbstractRouter;
+import dev.relism.routing.Middleware;
import dev.relism.routing.PathUtils;
import dev.relism.routing.Route;
import dev.relism.routing.RouteHandle;
-import dev.relism.routing.Middleware;
-import java.io.File;
-import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
-import java.util.Enumeration;
import java.util.List;
-import java.util.jar.JarEntry;
-import java.util.jar.JarFile;
-import java.util.stream.Stream;
/**
- * Scoped registration context for a mounted sub-router namespace.
- *
- *
Obtained via {@link FlashApp#mount(String, java.util.function.Consumer)}.
- * A scope has its own child {@link ExtensionContext} that inherits all services and
- * annotation processors from the parent app, so extensions like {@code @Authenticated}
- * and {@code @RolesAllowed} work identically inside a scope.
- *
- *
Extensions installed on a scope are scoped to that namespace and not visible
- * in the parent or sibling scopes.
+ * Scoped builder for namespace-prefixed routes. Pure syntactic sugar —
+ * does not own a router. Collected routes merge into {@link FlashApp}'s
+ * single flat router at {@link FlashApp#start()}.
*
*
{@code
* app.mount("/api", scope -> {
- * scope.install(new RateLimitExtension());
- * scope.register(new UserHandler()); // @Authenticated auto-injected
- * scope.get("/health", (req, res) -> "ok");
+ * scope.use(authMiddleware);
+ * scope.get("/health", (req, res) -> "ok"); // → GET /api/health
* scope.scan("dev.example.api.handlers");
* });
* }
*/
public final class FlashScope implements FlashRegistrar {
- private final AbstractRouter router;
- private final String namespace;
- private final ExtensionContext ctx;
+ private final String namespace;
+ private final FlashContext ctx;
+ private final List scopeMiddlewares = new ArrayList<>();
+ private final List deferredRoutes = new ArrayList<>();
+
+ private static final Middleware[] NO_MW = new Middleware[0];
- /** Pending RouteHandle awaiting .with() — auto-flushed before each new registration. */
private RouteHandle pending;
- /**
- * Package-private — only {@link FlashApp} creates scopes.
- *
- * @param router the sub-router that will receive routes registered on this scope
- * @param namespace the namespace prefix (e.g. {@code "/api"})
- * @param parentCtx the parent app's ExtensionContext — a child is created from it
- */
- FlashScope(AbstractRouter router, String namespace, ExtensionContext parentCtx) {
- this.router = router;
+ FlashScope(String namespace, FlashContext parentCtx) {
this.namespace = namespace;
this.ctx = parentCtx.child();
}
@@ -64,10 +45,7 @@ public final class FlashScope implements FlashRegistrar {
// ── Pending flush ─────────────────────────────────────────────────────────
private void flushPending() {
- if (pending != null) {
- pending.ensureRegistered();
- pending = null;
- }
+ if (pending != null) { pending.ensureRegistered(); pending = null; }
}
private RouteHandle
track(RouteHandle
handle) {
@@ -76,12 +54,20 @@ public final class FlashScope implements FlashRegistrar {
return handle;
}
- // ── FlashRegistrar — extension installation ───────────────────────────────
+ // ── Scope middleware ──────────────────────────────────────────────────────
/**
- * Installs an extension scoped to this namespace.
- * The extension registers routes and services on this scope only.
+ * Adds middlewares applied to every route in this scope.
+ * Combined at compile time in order: Global → Scope → Annotation → Explicit.
*/
+ public FlashScope use(Middleware... middlewares) {
+ flushPending();
+ scopeMiddlewares.addAll(Arrays.asList(middlewares));
+ return this;
+ }
+
+ // ── Extension installation ────────────────────────────────────────────────
+
@Override
public FlashScope install(FlashExtension ext) {
flushPending();
@@ -89,128 +75,73 @@ public final class FlashScope implements FlashRegistrar {
return this;
}
- // ── FlashRegistrar — route registration ───────────────────────────────────
+ // ── Route registration (deferred) ─────────────────────────────────────────
- @Override public RouteHandle get (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.GET, path, h); }
- @Override public RouteHandle post (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.POST, path, h); }
- @Override public RouteHandle put (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.PUT, path, h); }
- @Override public RouteHandle delete (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.DELETE, path, h); }
- @Override public RouteHandle patch (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.PATCH, path, h); }
- @Override public RouteHandle options(String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.OPTIONS, path, h); }
- @Override public RouteHandle head (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.HEAD, path, h); }
- @Override public RouteHandle trace (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.TRACE, path, h); }
- @Override public RouteHandle connect(String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.CONNECT, path, h); }
- @Override public RouteHandle purge (String path, SimpleHandler.FunctionalHandler h) { return routeLambda(HttpMethod.PURGE, path, h); }
+ @Override public RouteHandle get (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.GET, path, h); }
+ @Override public RouteHandle post (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.POST, path, h); }
+ @Override public RouteHandle put (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.PUT, path, h); }
+ @Override public RouteHandle delete (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.DELETE, path, h); }
+ @Override public RouteHandle patch (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.PATCH, path, h); }
+ @Override public RouteHandle options(String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.OPTIONS, path, h); }
+ @Override public RouteHandle head (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.HEAD, path, h); }
+ @Override public RouteHandle trace (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.TRACE, path, h); }
+ @Override public RouteHandle connect(String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.CONNECT, path, h); }
+ @Override public RouteHandle purge (String path, SimpleHandler.FunctionalHandler h) { return lambda(HttpMethod.PURGE, path, h); }
- private RouteHandle routeLambda(HttpMethod method, String path, SimpleHandler.FunctionalHandler h) {
- return track(new RouteHandle<>(this, m -> {
- String full = ns(path);
- emit(method, full, null, List.of(), m);
- router.doRegister(method, full, h, m);
- }));
+ private RouteHandle lambda(HttpMethod method, String path, SimpleHandler.FunctionalHandler h) {
+ String full = ns(path);
+ Middleware[] scopeMw = snapshotScopeMiddlewares();
+ return track(new RouteHandle<>(this, mw ->
+ deferredRoutes.add(new RouteDefinition(method, full, new SimpleHandler(h), scopeMw, mw, false, ctx, namespace))));
}
/**
- * Begins registration of a class-based handler. Annotation processors from the
- * parent app and any installed on this scope are applied. The {@link Route @Route}
- * path is prepended with this scope's namespace automatically.
- *
- * Calling {@link RouteHandle#with} is optional — the route is registered
- * automatically before the next operation or when the scope consumer returns.
+ * Registers a class-based handler annotated with {@link Route @Route}.
+ * Not part of {@link FlashRegistrar} — scope-only convenience.
*/
- @Override
- public RouteHandle register(RequestHandler handler) {
- return track(new RouteHandle<>(this, explicit -> {
- List injected = ctx.processors().stream()
- .flatMap(p -> p.process(handler.getClass()).stream())
- .toList();
- Middleware[] all = injected.isEmpty()
- ? explicit
- : Stream.concat(injected.stream(), Arrays.stream(explicit)).toArray(Middleware[]::new);
- Route annotation = handler.getClass().getAnnotation(Route.class);
- if (annotation != null) {
- String full = ns(annotation.path());
- emit(annotation.method(), full, handler.getClass(), injected, explicit);
- router.doRegister(annotation.method(), full, (RequestHandler) handler, all);
- }
- }));
+ RouteHandle register(RequestHandler handler) {
+ Route ann = handler.getClass().getAnnotation(Route.class);
+ if (ann == null)
+ throw new InitializationException(
+ handler.getClass().getName() + " is missing @Route");
+ String full = ns(ann.path());
+ Middleware[] scopeMw = snapshotScopeMiddlewares();
+ return track(new RouteHandle<>(this, mw ->
+ deferredRoutes.add(new RouteDefinition(ann.method(), full, handler, scopeMw, mw, true, ctx, namespace))));
}
- /**
- * Scans {@code packageName} for {@link RequestHandler} subclasses annotated with
- * {@link Route @Route}. Each is instantiated via its no-arg constructor and registered
- * with this scope's namespace prefix and annotation processors applied.
- */
@Override
public FlashScope scan(String packageName) {
flushPending();
- PackageScanner.findHandlers(packageName).forEach(cls -> register(instantiate(cls)).ensureRegistered());
+ PackageScanner.findHandlers(packageName).forEach(cls ->
+ register(instantiate(cls)).ensureRegistered());
return this;
}
@Override
- public FlashScope onException(AbstractRouter.ExceptionHandler h) {
- flushPending();
- router.onException(h);
- return this;
- }
+ public FlashContext ctx() { return ctx; }
- @Override
- public FlashScope onNotFound(SimpleHandler.FunctionalHandler h) {
- flushPending();
- router.onNotFound(h);
- return this;
- }
+ // ── Internals (called by FlashApp.mount) ──────────────────────────────────
- @Override
- public ExtensionContext ctx() {
- return ctx;
- }
+ void flush() { flushPending(); }
- // ── Internals ─────────────────────────────────────────────────────────────
+ List routes() { return deferredRoutes; }
- /** Ensures any pending route is registered when the scope consumer returns. */
- void flush() {
- flushPending();
- }
-
- /** Returns the sub-router for GlobalRouter to mount. */
- AbstractRouter router() {
- return router;
- }
-
- /** Prepends this scope's namespace to the given path. */
private String ns(String path) {
return namespace + PathUtils.sanitize(path);
}
- @SuppressWarnings("unchecked")
+ private Middleware[] snapshotScopeMiddlewares() {
+ return scopeMiddlewares.isEmpty() ? NO_MW : scopeMiddlewares.toArray(NO_MW);
+ }
+
private static RequestHandler instantiate(Class cls) {
try {
return (RequestHandler) cls.getDeclaredConstructor().newInstance();
} catch (Exception e) {
- throw new RuntimeException("Failed to instantiate handler: " + cls.getName() +
+ throw new InitializationException(
+ "Failed to instantiate " + cls.getName() +
" — ensure it has a public no-arg constructor", e);
}
}
-
- /**
- * Emits a {@link RouteEvent} to all {@link RouteListener}s visible from this scope's context.
- * Parent-level listeners (registered on the app) are included via context inheritance.
- * No-op if no listener has been registered. Never called on the request hot-path.
- */
- @SuppressWarnings("unchecked")
- private void emit(HttpMethod method, String path, Class handlerClass,
- List injected, Middleware[] explicit) {
- List listeners = ctx.routeListeners();
- if (listeners.isEmpty()) return;
- Middleware[] routerMws = router.routerMiddlewares();
- List> chain = new ArrayList<>(routerMws.length + injected.size() + explicit.length);
- for (Middleware m : routerMws) chain.add((Class) m.getClass());
- for (Middleware m : injected) chain.add((Class) m.getClass());
- for (Middleware m : explicit) chain.add((Class) m.getClass());
- RouteEvent event = new RouteEvent(method, path, namespace,
- router.getClass().getSimpleName(), handlerClass, List.copyOf(chain));
- listeners.forEach(l -> l.onRoute(event));
- }
}
diff --git a/flash/src/main/java/dev/relism/extension/PackageScanner.java b/flash/src/main/java/dev/relism/extension/PackageScanner.java
index 21031e1..fb6126c 100644
--- a/flash/src/main/java/dev/relism/extension/PackageScanner.java
+++ b/flash/src/main/java/dev/relism/extension/PackageScanner.java
@@ -1,5 +1,6 @@
package dev.relism.extension;
+import dev.relism.exceptions.InitializationException;
import dev.relism.models.RequestHandler;
import dev.relism.routing.Route;
@@ -15,6 +16,10 @@ import java.util.jar.JarFile;
* Minimal classpath scanner used by {@link FlashApp#scan} and {@link FlashScope#scan}.
* Finds all classes in a package that extend {@link RequestHandler} and carry {@link Route @Route}.
* Supports both exploded directories (development) and fat JARs (deployment).
+ *
+ * Fail-fast: if the package does not exist, contains no handlers, or a handler
+ * class cannot be loaded, an {@link InitializationException} is thrown immediately.
+ * A clear crash at boot is always preferable to a server that starts "empty".
*/
final class PackageScanner {
@@ -22,55 +27,84 @@ final class PackageScanner {
/**
* Returns all {@link RequestHandler} subclasses in {@code packageName} that carry
- * {@link Route @Route} and have a public no-arg constructor.
+ * {@link Route @Route}.
+ *
+ * @throws InitializationException if the package is empty, does not exist, or a
+ * handler class fails to load
*/
static List> findHandlers(String packageName) {
+ if (packageName == null || packageName.isBlank())
+ throw new InitializationException("scan() called with null or blank package name");
+
String resourcePath = packageName.replace('.', '/');
ClassLoader cl = Thread.currentThread().getContextClassLoader();
List> result = new ArrayList<>();
+ List errors = new ArrayList<>();
+ boolean packageFound = false;
+
try {
Enumeration