refactor: rename packages and files to use 'flash' prefix for consistency

2026-04-26 12:34:49 +02:00
parent 9e19f439be
commit 8a52c4f143
279 changed files with 2774 additions and 752 deletions
@@ -0,0 +1,177 @@
+package dev.relism.flash.ext.data.hibernate;
+
+import dev.relism.flash.ext.data.core.*;
+import org.hibernate.Session;
+import org.hibernate.query.MutationQuery;
+
+import jakarta.persistence.TypedQuery;
+import java.io.Serializable;
+import java.util.*;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+
+/**
+ * Hibernate-backed repository base.
+ * Never extend this directly — extend {@link Repository} from the core.
+ * This class is instantiated internally by flash-ext-data-hibernate.
+ */
+public abstract class HibernateRepository<T, ID extends Serializable>
+        extends Repository<T, ID> {
+
+    private final Class<T> type;
+
+    protected HibernateRepository(Class<T> type) {
+        this.type = type;
+    }
+
+    // ── Session — always safe, tx() wrapper guarantees active transaction ─────
+
+    protected Session session() {
+        return Tx.resource(Session.class);
+    }
+
+    // ── Repository abstract impl ──────────────────────────────────────────────
+
+    @Override
+    protected Optional<T> doFindById(ID id) {
+        return Optional.ofNullable(session().get(type, id));
+    }
+
+    @Override
+    protected List<T> doFindAll() {
+        return hql("from " + type.getSimpleName()).getResultList();
+    }
+
+    @Override
+    protected List<T> doFindAll(int page, int size) {
+        return hql("from " + type.getSimpleName())
+                .setFirstResult(page * size)
+                .setMaxResults(size)
+                .getResultList();
+    }
+
+    @Override
+    protected List<T> doFindAll(Sort sort) {
+        return hql("from " + type.getSimpleName() + orderClause(sort))
+                .getResultList();
+    }
+
+    @Override
+    protected List<T> doFindAll(int page, int size, Sort sort) {
+        return hql("from " + type.getSimpleName() + orderClause(sort))
+                .setFirstResult(page * size)
+                .setMaxResults(size)
+                .getResultList();
+    }
+
+    @Override
+    protected Page<T> doFindPage(int page, int size) {
+        long total = doCount();
+        return new Page<>(doFindAll(page, size), page, size, total);
+    }
+
+    @Override
+    protected Page<T> doFindPage(int page, int size, Sort sort) {
+        long total = doCount();
+        return new Page<>(doFindAll(page, size, sort), page, size, total);
+    }
+
+    @Override
+    protected T doSave(T entity) {
+        session().persist(entity);
+        return entity;
+    }
+
+    @Override
+    protected T doUpdate(T entity) {
+        return session().merge(entity);
+    }
+
+    @Override
+    protected void doDelete(T entity) {
+        Session s = session();
+        s.remove(s.contains(entity) ? entity : s.merge(entity));
+    }
+
+    @Override
+    protected void doDeleteById(ID id) {
+        doFindById(id).ifPresent(this::doDelete);
+    }
+
+    @Override
+    protected boolean doExistsById(ID id) {
+        return doFindById(id).isPresent();
+    }
+
+    @Override
+    protected long doCount() {
+        return session()
+                .createQuery("select count(*) from " + type.getSimpleName(), Long.class)
+                .uniqueResultOptional()
+                .orElse(0L);
+    }
+
+    // ── Query helpers — usabili nelle sottoclassi domain ─────────────────────
+
+    protected TypedQuery<T> hql(String hql) {
+        return session().createQuery(hql, type);
+    }
+
+    protected <R> TypedQuery<R> hql(String hql, Class<R> resultType) {
+        return session().createQuery(hql, resultType);
+    }
+
+    protected Optional<T> findOne(String hql, Consumer<TypedQuery<T>> params) {
+        TypedQuery<T> q = hql(hql);
+        params.accept(q);
+        return q.getResultStream().findFirst();
+    }
+
+    protected List<T> findMany(String hql, Consumer<TypedQuery<T>> params) {
+        return tx(() -> {
+            TypedQuery<T> q = hql(hql);
+            params.accept(q);
+            return q.getResultList();
+        });
+    }
+
+    protected List<T> findMany(String hql, Consumer<TypedQuery<T>> params,
+                               int page, int size) {
+        return tx(() -> {
+            TypedQuery<T> q = hql(hql);
+            params.accept(q);
+            return q.setFirstResult(page * size).setMaxResults(size).getResultList();
+        });
+    }
+
+    protected Page<T> findManyPaged(String hql, String countHql,
+                                    Consumer<TypedQuery<T>> params,
+                                    int page, int size) {
+        return tx(() -> {
+            long total = session()
+                    .createQuery(countHql, Long.class)
+                    .uniqueResultOptional()
+                    .orElse(0L);
+            List<T> content = findMany(hql, params, page, size);
+            return new Page<>(content, page, size, total);
+        });
+    }
+
+    protected int execute(String hql, Consumer<MutationQuery> params) {
+        return tx(() -> {
+            MutationQuery q = session().createMutationQuery(hql);
+            params.accept(q);
+            return q.executeUpdate();
+        });
+    }
+
+    protected Class<T> entityType() {
+        return type;
+    }
+
+    private String orderClause(Sort sort) {
+        return " order by " + sort.columns().stream()
+                .map(c -> c.column() + (c.asc() ? " ASC" : " DESC"))
+                .collect(Collectors.joining(", "));
+    }
+}
@@ -0,0 +1,114 @@
+package dev.relism.flash.ext.data.hibernate;
+
+import dev.relism.flash.ext.data.core.*;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+
+import java.util.Objects;
+
+public class HibernateTxManager implements TxManager {
+    private static final TxResourceKey HIBERNATE_STATUS_KEY = TxResourceKey.of("hibernate.tx.status");
+
+    private final SessionFactory sf;
+
+    public HibernateTxManager(SessionFactory sessionFactory) {
+        this.sf = Objects.requireNonNull(sessionFactory);
+    }
+
+    @Override
+    public TxStatus begin(TxDefinition definition) {
+        return switch (definition.propagation()) {
+            case REQUIRED -> ResourceRegistry.isBound(HIBERNATE_STATUS_KEY)
+                    ? joinExisting(definition)
+                    : beginNew(definition);
+            case REQUIRES_NEW -> beginNew(definition);
+            case MANDATORY -> {
+                if (!ResourceRegistry.isBound(HIBERNATE_STATUS_KEY))
+                    throw new IllegalStateException("MANDATORY: no active transaction");
+                yield joinExisting(definition);
+            }
+            case NOT_SUPPORTED -> throw new UnsupportedOperationException("NOT_SUPPORTED is not implemented");
+        };
+    }
+
+    private TxStatus beginNew(TxDefinition definition) {
+        HibernateTxStatus suspended = ResourceRegistry.getOrNull(HIBERNATE_STATUS_KEY, HibernateTxStatus.class);
+        if (suspended != null) {
+            ResourceRegistry.unbind(HIBERNATE_STATUS_KEY);
+        }
+        Session s = sf.openSession();
+        s.beginTransaction();
+        if (definition.readOnly()) s.setDefaultReadOnly(true);
+        if (definition.isolation() != TransactionIsolation.DEFAULT) {
+            s.doWork(connection -> connection.setTransactionIsolation(definition.isolation().level()));
+        }
+        HibernateTxStatus status = new HibernateTxStatus(
+                s,
+                true,
+                definition.readOnly(),
+                suspended,
+                new HibernateTxStatus.RollbackMarker()
+        );
+        ResourceRegistry.bind(HIBERNATE_STATUS_KEY, status);
+        return status;
+    }
+
+    private TxStatus joinExisting(TxDefinition definition) {
+        HibernateTxStatus existing = ResourceRegistry.get(HIBERNATE_STATUS_KEY, HibernateTxStatus.class);
+        if (definition.readOnly() && !existing.isReadOnly()) {
+            throw new TxException("Cannot join read-write tx as read-only");
+        }
+        return new HibernateTxStatus(
+                existing.session(),
+                false,
+                definition.readOnly(),
+                null,
+                existing.rollbackMarker()
+        );
+    }
+
+    @Override
+    public void commit(TxStatus status) {
+        HibernateTxStatus s = (HibernateTxStatus) status;
+        if (!s.isNewTransaction()) {
+            return;
+        }
+        try {
+            if (s.isRollbackOnly() && s.session().getTransaction().isActive()) {
+                s.session().getTransaction().rollback();
+                ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK);
+            } else {
+                s.session().getTransaction().commit();
+                ResourceRegistry.fireSynchronizations(TxOutcome.COMMITTED);
+            }
+        } finally {
+            cleanupAndResume(s);
+        }
+    }
+
+    @Override
+    public void rollback(TxStatus status) {
+        HibernateTxStatus s = (HibernateTxStatus) status;
+        if (!s.isNewTransaction()) {
+            s.markRollbackOnly();
+            return;
+        }
+        try {
+            if (s.session().getTransaction().isActive()) {
+                s.session().getTransaction().rollback();
+            }
+            ResourceRegistry.fireSynchronizations(TxOutcome.ROLLED_BACK);
+        } finally {
+            cleanupAndResume(s);
+        }
+    }
+
+    private void cleanupAndResume(HibernateTxStatus status) {
+        ResourceRegistry.unbind(HIBERNATE_STATUS_KEY);
+        status.session().close();
+        HibernateTxStatus suspended = status.suspended();
+        if (suspended != null) {
+            ResourceRegistry.bind(HIBERNATE_STATUS_KEY, suspended);
+        }
+    }
+}
@@ -0,0 +1,44 @@
+package dev.relism.flash.ext.data.hibernate;
+
+import dev.relism.flash.ext.data.core.TxStatus;
+import org.hibernate.Session;
+
+class HibernateTxStatus implements TxStatus {
+    static final class RollbackMarker {
+        boolean rollbackOnly;
+    }
+
+    private final Session session;
+    private final boolean newTransaction;
+    private final boolean readOnly;
+    private final HibernateTxStatus suspended;
+    private final RollbackMarker rollbackMarker;
+
+    HibernateTxStatus(
+            Session session,
+            boolean newTransaction,
+            boolean readOnly,
+            HibernateTxStatus suspended,
+            RollbackMarker rollbackMarker
+    ) {
+        this.session = session;
+        this.newTransaction = newTransaction;
+        this.readOnly = readOnly;
+        this.suspended = suspended;
+        this.rollbackMarker = rollbackMarker;
+    }
+
+    @Override public boolean isNewTransaction() { return newTransaction; }
+    @Override public boolean isReadOnly() { return readOnly; }
+    @Override public boolean isRollbackOnly() { return rollbackMarker.rollbackOnly; }
+    @Override public void markRollbackOnly() { rollbackMarker.rollbackOnly = true; }
+
+    @Override
+    public <R> R resource(Class<R> type) {
+        return type.cast(session);
+    }
+
+    Session session() { return session; }
+    HibernateTxStatus suspended() { return suspended; }
+    RollbackMarker rollbackMarker() { return rollbackMarker; }
+}
@@ -0,0 +1,68 @@
+package dev.relism.flash.ext.data.hibernate;
+
+import dev.relism.flash.ext.data.core.*;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class HibernateTxManagerTest {
+    static SessionFactory sf;
+    static HibernateTxManager manager;
+
+    @BeforeAll
+    static void setup() {
+        sf = TestHelper.buildSessionFactory();
+        manager = new HibernateTxManager(sf);
+    }
+
+    @AfterAll
+    static void teardown() {
+        if (sf != null) {
+            sf.close();
+        }
+    }
+
+    @AfterEach
+    void cleanup() {
+        ResourceRegistry.clear();
+    }
+
+    @Test
+    void required_starts_new_when_absent() {
+        TxStatus s = manager.begin(TxDefinition.DEFAULTS);
+        assertNotNull(s.resource(Session.class));
+        assertTrue(s.isNewTransaction());
+        assertDoesNotThrow(() -> manager.commit(s));
+    }
+
+    @Test
+    void required_joins_existing_when_present() {
+        TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
+        TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRED));
+        assertSame(outer.resource(Session.class), inner.resource(Session.class));
+        manager.rollback(outer);
+    }
+
+    @Test
+    void requires_new_uses_separate_session() {
+        TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
+        TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRES_NEW));
+        assertNotSame(outer.resource(Session.class), inner.resource(Session.class));
+        manager.commit(inner);
+        manager.rollback(outer);
+    }
+
+    @Test
+    void rollback_on_joined_marks_outer_rollback_only() {
+        TxStatus outer = manager.begin(TxDefinition.DEFAULTS);
+        TxStatus inner = manager.begin(TxDefinition.DEFAULTS.withPropagation(TransactionPropagation.REQUIRED));
+        manager.rollback(inner);
+        assertTrue(outer.isRollbackOnly());
+        manager.rollback(outer);
+    }
+}
@@ -0,0 +1,24 @@
+package dev.relism.flash.ext.data.hibernate;
+
+import org.hibernate.SessionFactory;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+
+public class TestHelper {
+    public static SessionFactory buildSessionFactory() {
+        final StandardServiceRegistry registry = new StandardServiceRegistryBuilder()
+                .applySetting("hibernate.connection.url", "jdbc:h2:mem:tx-hibernate;DB_CLOSE_DELAY=-1")
+                .applySetting("hibernate.connection.driver_class", "org.h2.Driver")
+                .applySetting("hibernate.dialect", "org.hibernate.dialect.H2Dialect")
+                .applySetting("hibernate.hbm2ddl.auto", "none")
+                .applySetting("hibernate.show_sql", "false")
+                .build();
+        try {
+            return new MetadataSources(registry).buildMetadata().buildSessionFactory();
+        } catch (Exception e) {
+            StandardServiceRegistryBuilder.destroy(registry);
+            throw e;
+        }
+    }
+}