/**
 * Loads the appropriate {@link DatastoreProvider}. Driven by the {@link #DATASTORE_PROVIDER}
 * property which can receive
 *
 * <ul>
 *   <li>a {@code DatastoreProvider} instance
 *   <li>a {@code DatastoreProvider} class
 *   <li>a string representing the {@code DatastoreProvider} class
 *   <li>a string representing one of the datastore provider shortcuts
 * </ul>
 *
 * If the property is not set, Infinispan is used by default.
 *
 * <p>This is a {@link SessionFactoryServiceInitiator} because a {@code DatastoreProvider} can be a
 * {@link org.hibernate.ogm.datastore.StartStoppable} service - the {@link
 * org.hibernate.service.spi.SessionFactoryServiceRegistry} calls {@code StartStoppable} and passes
 * the {@link org.hibernate.SessionFactory}
 *
 * @author Emmanuel Bernard <*****@*****.**>
 * @author Davide D'Alto <*****@*****.**>
 */
public final class DatastoreProviderInitiator
    implements SessionFactoryServiceInitiator<DatastoreProvider> {

  public static final String DATASTORE_PROVIDER = "hibernate.ogm.datastore.provider";
  public static final DatastoreProviderInitiator INSTANCE = new DatastoreProviderInitiator();

  private static final Log log = LoggerFactory.make();
  private static final String DEFAULT_DATASTORE_PROVIDER = "infinispan";

  @Override
  public Class<DatastoreProvider> getServiceInitiated() {
    return DatastoreProvider.class;
  }

  @Override
  public DatastoreProvider initiateService(
      SessionFactoryImplementor sessionFactory,
      Configuration configuration,
      ServiceRegistryImplementor registry) {
    ConfigurationPropertyReader propertyReader =
        new ConfigurationPropertyReader(
            configuration, registry.getService(ClassLoaderService.class));

    DatastoreProvider datastoreProvider =
        propertyReader
            .property(DATASTORE_PROVIDER, DatastoreProvider.class)
            .withDefaultImplementation(DEFAULT_DATASTORE_PROVIDER)
            .withShortNameResolver(DatastoreProviderShortNameResolver.INSTANCE)
            .getValue();

    log.useDatastoreProvider(datastoreProvider.getClass().getName());
    return datastoreProvider;
  }

  @Override
  public DatastoreProvider initiateService(
      SessionFactoryImplementor sessionFactory,
      MetadataImplementor metadata,
      ServiceRegistryImplementor registry) {
    throw new UnsupportedOperationException(
        "Cannot create " + DatastoreProvider.class.getName() + " service using metadata");
  }

  private static class DatastoreProviderShortNameResolver implements ShortNameResolver {

    private static final DatastoreProviderShortNameResolver INSTANCE =
        new DatastoreProviderShortNameResolver();

    @Override
    public boolean isShortName(String name) {
      return AvailableDatastoreProvider.isShortName(name);
    }

    @Override
    public String resolve(String shortName) {
      return AvailableDatastoreProvider.byShortName(shortName).getDatastoreProviderClassName();
    }
  }
}
/**
 * @author Sanne Grinovero &lt;[email protected]&gt; (C) 2011 Red Hat Inc.
 * @author Emmanuel Bernard &lt;[email protected]&gt;
 */
public class MapPessimisticWriteLockingStrategy implements LockingStrategy {

  private static final Log log = LoggerFactory.make();

  protected final Lockable lockable;
  protected final LockMode lockMode;
  protected final GridType identifierGridType;

  private volatile MapDatastoreProvider provider;

  public MapPessimisticWriteLockingStrategy(Lockable lockable, LockMode lockMode) {
    this.lockable = lockable;
    this.lockMode = lockMode;
    TypeTranslator typeTranslator =
        lockable.getFactory().getServiceRegistry().getService(TypeTranslator.class);
    this.identifierGridType = typeTranslator.getType(lockable.getIdentifierType());
  }

  @Override
  public void lock(
      Serializable id, Object version, Object object, int timeout, SessionImplementor session)
      throws StaleObjectStateException, JDBCException {
    MapDatastoreProvider dataStore = getProvider(session);
    EntityKey key =
        EntityKeyBuilder.fromData(
            ((OgmEntityPersister) lockable).getRootEntityKeyMetadata(),
            identifierGridType,
            id,
            session);
    dataStore.writeLock(key, timeout);
    // FIXME check the version number as well and raise an optimistic lock exception if there is an
    // issue JPA 2 spec: 3.4.4.2
    // (Comment by Emmanuel)
  }

  protected final MapDatastoreProvider getProvider(SessionImplementor session) {
    if (provider == null) {
      DatastoreProvider service =
          session.getFactory().getServiceRegistry().getService(DatastoreProvider.class);
      if (service instanceof MapDatastoreProvider) {
        provider = (MapDatastoreProvider) service;
      } else {
        log.unexpectedDatastoreProvider(service.getClass(), MapDatastoreProvider.class);
      }
    }
    return provider;
  }
}
Ejemplo n.º 3
0
/**
 * A queue for {@link Operation}.
 *
 * <p>It keeps track of the element that are going to be affected by an {@link
 * UpdateTupleOperation}. The queue can be closed, in that case it will throw an exception when
 * trying to add or poll an operation.
 *
 * @author Guillaume Scheibel <*****@*****.**>
 * @author Davide D'Alto <*****@*****.**>
 */
public class OperationsQueue {

  /** A queue that it is always closed */
  public static final OperationsQueue CLOSED_QUEUE =
      new OperationsQueue() {
        @Override
        public boolean isClosed() {
          return true;
        }
      };

  private static final Log log = LoggerFactory.make();

  private final Queue<Operation> operations = new LinkedList<Operation>();

  private final Set<EntityKey> entityKeys = new HashSet<EntityKey>();

  private boolean closed = false;

  public void add(UpdateTupleOperation operation) {
    validate();
    entityKeys.add(operation.getEntityKey());
    addOperation(operation);
  }

  public void add(Operation operation) {
    validate();
    addOperation(operation);
  }

  private void validate() {
    if (isClosed()) {
      throw log.closedOperationQueue();
    }
  }

  private void addOperation(Operation operation) {
    log.debug("Add batched operation " + operation);
    operations.add(operation);
  }

  public Operation poll() {
    validate();
    Operation operation = operations.poll();
    entityKeys.remove(operation);
    return operation;
  }

  public void close() {
    entityKeys.clear();
    operations.clear();
    closed = true;
  }

  public boolean isClosed() {
    return closed;
  }

  /**
   * @param key the {@link EntityKey} that identify the element
   * @return true if an {@link UpdateTupleOperation} is bound to the key, false otherwise
   */
  public boolean contains(EntityKey key) {
    return entityKeys.contains(key);
  }

  /** @return the length of the queue */
  public int size() {
    return operations.size();
  }
}
/**
 * Basic functionality for persisting an entity using OGM. TODO most of the non persister code SIC
 * comes from {@link org.hibernate.persister.entity.UnionSubclassEntityPersister}
 *
 * @see javax.persistence.InheritanceType
 * @author Emmanuel Bernard
 * @author Davide D'Alto
 */
public abstract class OgmEntityPersister extends AbstractEntityPersister
    implements EntityPersister {

  private static final int TABLE_SPAN = 1;

  private static final Log log = LoggerFactory.make();

  private final EntityDiscriminator discriminator;

  private final String tableName;
  private final String[] constraintOrderedTableNames;
  private final String[][] constraintOrderedKeyColumnNames;
  private final String[] spaces;
  private final String[] subclassSpaces;
  private final GridType[] gridPropertyTypes;
  private final GridType gridVersionType;
  private final GridType gridIdentifierType;
  private final String jpaEntityName;
  private final TupleContext tupleContext;

  // service references
  private final GridDialect gridDialect;
  private final EntityKeyMetadata entityKeyMetadata;
  private final Map<String, AssociationKeyMetadata> associationKeyMetadataPerPropertyName;

  private final OptionsService optionsService;

  OgmEntityPersister(
      final PersistentClass persistentClass,
      final EntityRegionAccessStrategy cacheAccessStrategy,
      final NaturalIdRegionAccessStrategy naturalIdRegionAccessStrategy,
      final SessionFactoryImplementor factory,
      final Mapping mapping,
      final EntityDiscriminator discriminator)
      throws HibernateException {
    super(persistentClass, cacheAccessStrategy, naturalIdRegionAccessStrategy, factory);
    if (log.isTraceEnabled()) {
      log.tracef("Creating OgmEntityPersister for %s", persistentClass.getClassName());
    }
    ServiceRegistryImplementor serviceRegistry = factory.getServiceRegistry();
    this.gridDialect = serviceRegistry.getService(GridDialect.class);
    this.optionsService = serviceRegistry.getService(OptionsService.class);

    tableName =
        persistentClass
            .getTable()
            .getQualifiedName(
                factory.getDialect(),
                factory.getSettings().getDefaultCatalogName(),
                factory.getSettings().getDefaultSchemaName());

    this.discriminator = discriminator;

    // SPACES
    // TODO: i'm not sure, but perhaps we should exclude
    //      abstract denormalized tables?

    int spacesSize = 1 + persistentClass.getSynchronizedTables().size();
    spaces = new String[spacesSize];
    spaces[0] = tableName;
    @SuppressWarnings("unchecked")
    Iterator<String> syncTablesIter = persistentClass.getSynchronizedTables().iterator();
    for (int i = 1; i < spacesSize; i++) {
      spaces[i] = syncTablesIter.next();
    }

    HashSet<String> subclassTables = new HashSet<String>();
    Iterator<Table> tableIter = persistentClass.getSubclassTableClosureIterator();
    while (tableIter.hasNext()) {
      Table table = tableIter.next();
      subclassTables.add(
          table.getQualifiedName(
              factory.getDialect(),
              factory.getSettings().getDefaultCatalogName(),
              factory.getSettings().getDefaultSchemaName()));
    }
    subclassSpaces = ArrayHelper.toStringArray(subclassTables);

    if (isMultiTable()) {
      int idColumnSpan = getIdentifierColumnSpan();
      ArrayList<String> tableNames = new ArrayList<String>();
      ArrayList<String[]> keyColumns = new ArrayList<String[]>();
      if (!isAbstract()) {
        tableNames.add(tableName);
        keyColumns.add(getIdentifierColumnNames());
      }
      @SuppressWarnings("unchecked")
      Iterator<Table> iter = persistentClass.getSubclassTableClosureIterator();
      while (iter.hasNext()) {
        Table tab = iter.next();
        if (!tab.isAbstractUnionTable()) {
          String tableName =
              tab.getQualifiedName(
                  factory.getDialect(),
                  factory.getSettings().getDefaultCatalogName(),
                  factory.getSettings().getDefaultSchemaName());
          tableNames.add(tableName);
          String[] key = new String[idColumnSpan];
          @SuppressWarnings("unchecked")
          Iterator<Column> citer = tab.getPrimaryKey().getColumnIterator();
          for (int k = 0; k < idColumnSpan; k++) {
            key[k] = citer.next().getQuotedName(factory.getDialect());
          }
          keyColumns.add(key);
        }
      }

      constraintOrderedTableNames = ArrayHelper.toStringArray(tableNames);
      constraintOrderedKeyColumnNames = ArrayHelper.to2DStringArray(keyColumns);
    } else {
      constraintOrderedTableNames = new String[] {tableName};
      constraintOrderedKeyColumnNames = new String[][] {getIdentifierColumnNames()};
    }

    initPropertyPaths(mapping);

    // Grid related metadata
    TypeTranslator typeTranslator = serviceRegistry.getService(TypeTranslator.class);
    final Type[] types = getPropertyTypes();
    final int length = types.length;
    gridPropertyTypes = new GridType[length];
    for (int index = 0; index < length; index++) {
      gridPropertyTypes[index] = typeTranslator.getType(types[index]);
    }
    gridVersionType = typeTranslator.getType(getVersionType());
    gridIdentifierType = typeTranslator.getType(getIdentifierType());
    List<String> columnNames = new ArrayList<String>();
    for (int propertyCount = 0; propertyCount < this.getPropertySpan(); propertyCount++) {
      String[] property = this.getPropertyColumnNames(propertyCount);
      for (int columnCount = 0; columnCount < property.length; columnCount++) {
        columnNames.add(property[columnCount]);
      }
    }
    if (discriminator.getColumnName() != null) {
      columnNames.add(discriminator.getColumnName());
    }
    this.tupleContext =
        new TupleContext(columnNames, optionsService.context().getEntityOptions(getMappedClass()));
    jpaEntityName = persistentClass.getJpaEntityName();
    entityKeyMetadata = new EntityKeyMetadata(getTableName(), getIdentifierColumnNames());
    // load unique key association key metadata
    associationKeyMetadataPerPropertyName = new HashMap<String, AssociationKeyMetadata>();
    initAssociationKeyMetadata();
    initCustomSQLStrings();
  }

  // Required to avoid null pointer errors when super.postInstantiate() is called
  private void initCustomSQLStrings() {
    customSQLInsert = new String[TABLE_SPAN];
    customSQLUpdate = new String[TABLE_SPAN];
    customSQLDelete = new String[TABLE_SPAN];
  }

  private void initAssociationKeyMetadata() {
    for (int index = 0; index < getPropertySpan(); index++) {
      final Type uniqueKeyType = getPropertyTypes()[index];
      if (uniqueKeyType.isEntityType()) {
        String[] propertyColumnNames = getPropertyColumnNames(index);
        AssociationKeyMetadata metadata =
            new AssociationKeyMetadata(getTableName(), propertyColumnNames);
        metadata.setRowKeyColumnNames(
            buildRowKeyColumnNamesForStarToOne(this, propertyColumnNames));
        associationKeyMetadataPerPropertyName.put(getPropertyNames()[index], metadata);
      }
    }
  }

  @Override
  protected void createUniqueKeyLoaders() throws MappingException {
    // Avoid the execution of super.createUniqueLoaders()
  }

  @Override
  protected void doPostInstantiate() {}

  public GridType getGridIdentifierType() {
    return gridIdentifierType;
  }

  public EntityKeyMetadata getEntityKeyMetadata() {
    return entityKeyMetadata;
  }

  public EntityKeyMetadata getRootEntityKeyMetadata() {
    // we only support single table and table per concrete class strategies
    // in this case the root to lock to is the entity itself
    // see its use in read locking strategy.
    return entityKeyMetadata;
  }

  /** This snapshot is meant to be used when updating data. */
  @Override
  public Object[] getDatabaseSnapshot(Serializable id, SessionImplementor session)
      throws HibernateException {

    if (log.isTraceEnabled()) {
      log.trace(
          "Getting current persistent state for: "
              + MessageHelper.infoString(this, id, getFactory()));
    }

    // snapshot is a Map in the end
    final Tuple resultset = getResultsetById(id, session);

    // if there is no resulting row, return null
    if (resultset == null || resultset.getSnapshot().isEmpty()) {
      return null;
    }
    // otherwise return the "hydrated" state (ie. associations are not resolved)
    GridType[] types = gridPropertyTypes;
    Object[] values = new Object[types.length];
    boolean[] includeProperty = getPropertyUpdateability();
    for (int i = 0; i < types.length; i++) {
      if (includeProperty[i]) {
        values[i] =
            types[i].hydrate(
                resultset, getPropertyAliases("", i), session, null); // null owner ok??
      }
    }
    return values;
  }

  private Tuple getResultsetById(Serializable id, SessionImplementor session) {
    final EntityKey key = EntityKeyBuilder.fromPersister(this, id, session);
    final Tuple resultset = gridDialect.getTuple(key, this.getTupleContext());
    return resultset;
  }

  @Override
  public Object initializeLazyProperty(String fieldName, Object entity, SessionImplementor session)
      throws HibernateException {

    final Serializable id = session.getContextEntityIdentifier(entity);

    final EntityEntry entry = session.getPersistenceContext().getEntry(entity);
    if (entry == null) {
      throw new HibernateException("entity is not associated with the session: " + id);
    }

    if (log.isTraceEnabled()) {
      log.trace(
          "initializing lazy properties of: "
              + MessageHelper.infoString(this, id, getFactory())
              + ", field access: "
              + fieldName);
    }

    if (hasCache()) {
      CacheKey cacheKey = session.generateCacheKey(id, getIdentifierType(), getEntityName());
      Object ce = getCacheAccessStrategy().get(cacheKey, session.getTimestamp());
      if (ce != null) {
        CacheEntry cacheEntry = (CacheEntry) getCacheEntryStructure().destructure(ce, getFactory());
        if (!cacheEntry.areLazyPropertiesUnfetched()) {
          // note early exit here:
          return initializeLazyPropertiesFromCache(fieldName, entity, session, entry, cacheEntry);
        }
      }
    }

    return initializeLazyPropertiesFromDatastore(fieldName, entity, session, id, entry);
  }

  // FIXME cache should use Core Types or Grid Types?
  // Make superclasses method protected??
  private Object initializeLazyPropertiesFromCache(
      final String fieldName,
      final Object entity,
      final SessionImplementor session,
      final EntityEntry entry,
      final CacheEntry cacheEntry) {
    throw new NotSupportedException("OGM-9", "Lazy properties not supported in OGM");
  }

  private Object initializeLazyPropertiesFromDatastore(
      final String fieldName,
      final Object entity,
      final SessionImplementor session,
      final Serializable id,
      final EntityEntry entry) {
    throw new NotSupportedException("OGM-9", "Lazy properties not supported in OGM");
  }

  /** Retrieve the version number */
  @Override
  public Object getCurrentVersion(Serializable id, SessionImplementor session)
      throws HibernateException {

    if (log.isTraceEnabled()) {
      log.trace("Getting version: " + MessageHelper.infoString(this, id, getFactory()));
    }
    final Tuple resultset = getResultsetById(id, session);

    if (resultset == null) {
      return null;
    } else {
      return gridVersionType.nullSafeGet(resultset, getVersionColumnName(), session, null);
    }
  }

  @Override
  public Object forceVersionIncrement(
      Serializable id, Object currentVersion, SessionImplementor session) {
    if (!isVersioned()) {
      throw new AssertionFailure("cannot force version increment on non-versioned entity");
    }

    if (isVersionPropertyGenerated()) {
      // the difficulty here is exactly what do we update in order to
      // force the version to be incremented in the db...
      throw new HibernateException(
          "LockMode.FORCE is currently not supported for generated version properties");
    }

    Object nextVersion = getVersionType().next(currentVersion, session);
    if (log.isTraceEnabled()) {
      log.trace(
          "Forcing version increment ["
              + MessageHelper.infoString(this, id, getFactory())
              + "; "
              + getVersionType().toLoggableString(currentVersion, getFactory())
              + " -> "
              + getVersionType().toLoggableString(nextVersion, getFactory())
              + "]");
    }

    /*
     * We get the value from the grid and compare the version values before putting the next version in
     * Contrary to the database version, there is
     * TODO should we use cache.replace() it seems more expensive to pass the resultset around "just" the atomicity of the operation
     */
    final EntityKey key = EntityKeyBuilder.fromPersister(this, id, session);
    final Tuple resultset = gridDialect.getTuple(key, getTupleContext());
    checkVersionAndRaiseSOSE(id, currentVersion, session, resultset);
    gridVersionType.nullSafeSet(
        resultset, nextVersion, new String[] {getVersionColumnName()}, session);
    gridDialect.updateTuple(resultset, key, getTupleContext());
    return nextVersion;
  }

  @Override
  public FilterAliasGenerator getFilterAliasGenerator(String rootAlias) {
    return new DynamicFilterAliasGenerator(new String[] {tableName}, rootAlias);
  }

  // TODO move that code to the EntityLoader as it is in AbstractEntityPersister?
  @Override
  public Object loadByUniqueKey(String propertyName, Object uniqueKey, SessionImplementor session)
      throws HibernateException {
    // we get the property type for an associated entity
    final int propertyIndex = getPropertyIndex(propertyName);
    final GridType gridUniqueKeyType =
        getUniqueKeyTypeFromAssociatedEntity(propertyIndex, propertyName);
    // get the associated property index (to get its column names)
    // find the ids per unique property name
    AssociationKeyMetadata associationKeyMetadata =
        associationKeyMetadataPerPropertyName.get(propertyName);
    if (associationKeyMetadata == null) {
      throw new AssertionFailure("loadByUniqueKey on a non EntityType:" + propertyName);
    }
    AssociationPersister associationPersister =
        new AssociationPersister(getMappedClass())
            .gridDialect(gridDialect)
            .key(uniqueKey)
            .keyGridType(gridUniqueKeyType)
            // does not set .collectionPersister as it does not make sense here for an entity
            .associationKeyMetadata(associationKeyMetadata)
            .session(session)
            .propertyType(getPropertyTypes()[propertyIndex]);
    final Association ids = associationPersister.getAssociationOrNull();

    if (ids == null || ids.size() == 0) {
      return null;
    } else if (ids.size() == 1) {
      // EntityLoader#loadByUniqueKey uses a null object and LockMode.NONE
      // there is only one element in the list, so get the first
      Tuple tuple = ids.get(ids.getKeys().iterator().next());
      final Serializable id =
          (Serializable)
              getGridIdentifierType().nullSafeGet(tuple, getIdentifierColumnNames(), session, null);
      return load(id, null, LockMode.NONE, session);
    } else {
      throw new AssertionFailure(
          "Loading by unique key but finding several matches: table:"
              + getTableName()
              + " property: "
              + propertyName
              + " value: "
              + uniqueKey);
    }
  }

  private GridType getUniqueKeyTypeFromAssociatedEntity(int propertyIndex, String propertyName) {
    GridType
        gridUniqueKeyType; // get the unique key type and if it's an entity type, get it's
                           // identifier type
    final Type uniqueKeyType = getPropertyTypes()[propertyIndex];
    if (uniqueKeyType.isEntityType()) {
      // we run under the assumption that we are fully in an OGM world
      EntityType entityType = (EntityType) uniqueKeyType;
      final OgmEntityPersister entityPersister =
          (OgmEntityPersister) entityType.getAssociatedJoinable(getFactory());
      gridUniqueKeyType = entityPersister.getGridIdentifierType();
    } else {
      throw new AssertionFailure("loadByUniqueKey on a non EntityType:" + propertyName);
    }
    return gridUniqueKeyType;
  }

  @Override
  protected void createLoaders() {
    Map<Object, Object> loaders = getLoaders();
    loaders.put(LockMode.NONE, createEntityLoader(LockMode.NONE));

    UniqueEntityLoader readLoader = createEntityLoader(LockMode.READ);
    loaders.put(LockMode.READ, readLoader);

    // TODO: inexact, what we really need to know is: are any outer joins used?
    boolean disableForUpdate =
        getSubclassTableSpan() > 1
            && hasSubclasses()
            && !getFactory().getDialect().supportsOuterJoinForUpdate();

    loaders.put(
        LockMode.UPGRADE, disableForUpdate ? readLoader : createEntityLoader(LockMode.UPGRADE));
    loaders.put(
        LockMode.UPGRADE_NOWAIT,
        disableForUpdate ? readLoader : createEntityLoader(LockMode.UPGRADE_NOWAIT));
    loaders.put(LockMode.FORCE, disableForUpdate ? readLoader : createEntityLoader(LockMode.FORCE));
    loaders.put(
        LockMode.PESSIMISTIC_READ,
        disableForUpdate ? readLoader : createEntityLoader(LockMode.PESSIMISTIC_READ));
    loaders.put(
        LockMode.PESSIMISTIC_WRITE,
        disableForUpdate ? readLoader : createEntityLoader(LockMode.PESSIMISTIC_WRITE));
    loaders.put(
        LockMode.PESSIMISTIC_FORCE_INCREMENT,
        disableForUpdate ? readLoader : createEntityLoader(LockMode.PESSIMISTIC_FORCE_INCREMENT));
    loaders.put(LockMode.OPTIMISTIC, createEntityLoader(LockMode.OPTIMISTIC));
    loaders.put(
        LockMode.OPTIMISTIC_FORCE_INCREMENT,
        createEntityLoader(LockMode.OPTIMISTIC_FORCE_INCREMENT));

    // FIXME handle cascading merge and refresh
    loaders.put(
        "merge", createEntityLoader(LockMode.READ)
        // new CascadeEntityLoader( this, CascadingAction.MERGE, getFactory() )
        );
    loaders.put(
        "refresh", createEntityLoader(LockMode.READ)
        // new CascadeEntityLoader( this, CascadingAction.REFRESH, getFactory() )
        );
  }

  @Override
  protected UniqueEntityLoader createEntityLoader(
      LockMode lockMode, LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
    // FIXME add support to lock mode and loadQueryInfluencers
    return new OgmLoader(new OgmEntityPersister[] {this});
  }

  @Override
  protected UniqueEntityLoader createEntityLoader(
      LockOptions lockOptions, LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
    // FIXME add support to lock options and loadQueryInfluencers
    return new OgmLoader(new OgmEntityPersister[] {this});
  }

  @Override
  protected UniqueEntityLoader createEntityLoader(LockMode lockMode) throws MappingException {
    return createEntityLoader(lockMode, LoadQueryInfluencers.NONE);
  }

  // TODO verify what to do with #check: Expectation seems to be very JDBC centric

  /**
   * Unmarshall the fields of a persistent instance from a result set, without resolving
   * associations or collections. Question: should this really be here, or should it be sent back to
   * Loader?
   */
  public Object[] hydrate(
      final Tuple resultset,
      final Serializable id,
      final Object object,
      final Loadable rootLoadable,
      // We probably don't need suffixedColumns, use column names instead
      // final String[][] suffixedPropertyColumns,
      final boolean allProperties,
      final SessionImplementor session)
      throws HibernateException {

    if (log.isTraceEnabled()) {
      log.trace("Hydrating entity: " + MessageHelper.infoString(this, id, getFactory()));
    }

    final OgmEntityPersister rootPersister = (OgmEntityPersister) rootLoadable;

    final boolean hasDeferred = rootPersister.hasSequentialSelect();
    boolean sequentialSelectEmpty = false;
    if (hasDeferred) {
      // note: today we don't have sequential select in OGM
      // check AbstractEntityPersister#hydrate for the detail
    }

    final String[] propNames = getPropertyNames();
    final Type[] types = getPropertyTypes();
    final Object[] values = new Object[types.length];
    final boolean[] laziness = getPropertyLaziness();
    final String[] propSubclassNames = getSubclassPropertySubclassNameClosure();
    final boolean[] propertySelectable = getPropertySelectable();
    for (int i = 0; i < types.length; i++) {
      values[i] =
          hydrateValue(
              resultset,
              session,
              object,
              i,
              propertySelectable,
              allProperties,
              laziness,
              hasDeferred,
              rootPersister,
              propNames,
              propSubclassNames,
              sequentialSelectEmpty);
    }
    return values;
  }

  private Object hydrateValue(
      Tuple resultset,
      SessionImplementor session,
      Object object,
      int index,
      boolean[] propertySelectable,
      boolean allProperties,
      boolean[] laziness,
      boolean hasDeferred,
      OgmEntityPersister rootPersister,
      String[] propNames,
      String[] propSubclassNames,
      boolean sequentialSelectEmpty) {
    Object value;
    if (!propertySelectable[index]) {
      value = BackrefPropertyAccessor.UNKNOWN;
    } else if (allProperties || !laziness[index]) {
      // decide which ResultSet to get the property value from:
      final boolean propertyIsDeferred =
          hasDeferred
              && rootPersister.isSubclassPropertyDeferred(
                  propNames[index], propSubclassNames[index]);
      if (propertyIsDeferred && sequentialSelectEmpty) {
        value = null;
      } else {
        // FIXME We don't handle deferred property yet
        // final ResultSet propertyResultSet = propertyIsDeferred ? sequentialResultSet : rs;
        GridType[] gridTypes = gridPropertyTypes;
        final String[] cols;
        if (propertyIsDeferred) {
          cols = getPropertyAliases("", index);
        } else {
          // TODO What to do?
          // : suffixedPropertyColumns[i];
          cols = getPropertyAliases("", index);
        }
        value = gridTypes[index].hydrate(resultset, cols, session, object); // null owner ok??
      }
    } else {
      value = LazyPropertyInitializer.UNFETCHED_PROPERTY;
    }
    return value;
  }

  @Override
  public String[] getPropertyAliases(String suffix, int i) {
    // TODO do something about suffixes
    return getPropertyColumnNames(i);
  }

  @Override
  protected boolean useInsertSelectIdentity() {
    return false;
  }

  @Override
  protected Serializable insert(
      final Object[] fields,
      final boolean[] notNull,
      String sql,
      final Object object,
      final SessionImplementor session)
      throws HibernateException {
    throw new HibernateException("Cannot use a database generator with OGM");
  }

  @Override
  protected LockingStrategy generateLocker(LockMode lockMode) {
    return gridDialect.getLockingStrategy(this, lockMode);
  }

  /** Update an object */
  @Override
  public void update(
      final Serializable id,
      final Object[] fields,
      final int[] dirtyFields,
      final boolean hasDirtyCollection,
      final Object[] oldFields,
      final Object oldVersion,
      final Object object,
      final Object rowId,
      final SessionImplementor session)
      throws HibernateException {

    // note: dirtyFields==null means we had no snapshot, and we couldn't get one using
    // select-before-update
    //	  oldFields==null just means we had no snapshot to begin with (we might have used
    // select-before-update to get the dirtyFields)

    // TODO support "multi table" entities
    final boolean[] tableUpdateNeeded = getTableUpdateNeeded(dirtyFields, hasDirtyCollection);
    final int span = getTableSpan();

    final boolean[] propsToUpdate;
    EntityEntry entry = session.getPersistenceContext().getEntry(object);

    // Ensure that an immutable or non-modifiable entity is not being updated unless it is
    // in the process of being deleted.
    if (entry == null && !isMutable()) {
      throw new IllegalStateException("Updating immutable entity that is not in session yet!");
    }
    // we always use a dynamicUpdate model for Infinispan
    if ((
    // getEntityMetamodel().isDynamicUpdate() &&
    dirtyFields != null)) {

      propsToUpdate = getPropertiesToUpdate(dirtyFields, hasDirtyCollection);
      // don't need to check laziness (dirty checking algorithm handles that)
    } else if (!isModifiableEntity(entry)) {
      // TODO does that apply to OGM?
      // We need to generate UPDATE SQL when a non-modifiable entity (e.g., read-only or immutable)
      // needs:
      // - to have references to transient entities set to null before being deleted
      // - to have version incremented do to a "dirty" association
      // If dirtyFields == null, then that means that there are no dirty properties to
      // to be updated; an empty array for the dirty fields needs to be passed to
      // getPropertiesToUpdate() instead of null.
      propsToUpdate =
          getPropertiesToUpdate(
              (dirtyFields == null ? ArrayHelper.EMPTY_INT_ARRAY : dirtyFields),
              hasDirtyCollection);
      // don't need to check laziness (dirty checking algorithm handles that)
    } else {
      // For the case of dynamic-update="false", or no snapshot, we update all properties
      // TODO handle lazy
      propsToUpdate = getPropertyUpdateability(object);
    }

    final SessionFactoryImplementor factory = getFactory();
    if (log.isTraceEnabled()) {
      log.trace("Updating entity: " + MessageHelper.infoString(this, id, factory));
      if (isVersioned()) {
        log.trace(
            "Existing version: " + oldVersion + " -> New version: " + fields[getVersionProperty()]);
      }
    }

    for (int j = 0; j < span; j++) {
      // Now update only the tables with dirty properties (and the table with the version number)
      if (tableUpdateNeeded[j]) {
        final EntityKey key = EntityKeyBuilder.fromPersister(this, id, session);
        Tuple resultset = gridDialect.getTuple(key, this.getTupleContext());
        final boolean useVersion = j == 0 && isVersioned();

        resultset = createNewResultSetIfNull(key, resultset, id, session);

        final EntityMetamodel entityMetamodel = getEntityMetamodel();

        // Write any appropriate versioning conditional parameters
        if (useVersion && entityMetamodel.getOptimisticLockStyle() == OptimisticLockStyle.VERSION) {
          if (checkVersion(propsToUpdate)) {
            checkVersionAndRaiseSOSE(id, oldVersion, session, resultset);
          }
        } else if (isAllOrDirtyOptLocking() && oldFields != null) {
          boolean[] versionability =
              getPropertyVersionability(); // TODO: is this really necessary????
          boolean[] includeOldField =
              entityMetamodel.getOptimisticLockStyle() == OptimisticLockStyle.ALL
                  ? getPropertyUpdateability()
                  : propsToUpdate;
          // TODO do a diff on the properties value from resultset and the dirty value
          GridType[] types = gridPropertyTypes;

          for (int i = 0; i < entityMetamodel.getPropertySpan(); i++) {
            boolean include =
                includeOldField[i]
                    && isPropertyOfTable(i, j)
                    && versionability[i]; // TODO: is this really necessary????
            if (include) {
              final GridType type = types[i];
              // FIXME what do do with settable?
              boolean[] settable = type.toColumnNullness(oldFields[i], factory);
              final Object snapshotValue =
                  type.nullSafeGet(resultset, getPropertyColumnNames(i), session, object);
              comparePropertyAndRaiseSOSE(
                  id, oldFields[i], factory, !type.isEqual(oldFields, snapshotValue, factory));
            }
          }
        }

        // dehydrate
        dehydrate(resultset, fields, propsToUpdate, getPropertyColumnUpdateable(), j, id, session);
        gridDialect.updateTuple(resultset, key, getTupleContext());
      }
    }
  }

  // Copied from AbstractEntityPersister
  private boolean isAllOrDirtyOptLocking() {
    EntityMetamodel entityMetamodel = getEntityMetamodel();
    return entityMetamodel.getOptimisticLockStyle() == OptimisticLockStyle.DIRTY
        || entityMetamodel.getOptimisticLockStyle() == OptimisticLockStyle.ALL;
  }

  private void comparePropertyAndRaiseSOSE(
      Serializable id, Object oldField, SessionFactoryImplementor factory, boolean b) {
    // TODO support other entity modes
    if (b) {
      if (factory.getStatistics().isStatisticsEnabled()) {
        factory.getStatisticsImplementor().optimisticFailure(getEntityName());
      }
      throw new StaleObjectStateException(getEntityName(), id);
    }
  }

  public void checkVersionAndRaiseSOSE(
      Serializable id, Object oldVersion, SessionImplementor session, Tuple resultset) {
    final Object resultSetVersion =
        gridVersionType.nullSafeGet(resultset, getVersionColumnName(), session, null);
    final SessionFactoryImplementor factory = getFactory();
    if (!gridVersionType.isEqual(oldVersion, resultSetVersion, factory)) {
      if (factory.getStatistics().isStatisticsEnabled()) {
        factory.getStatisticsImplementor().optimisticFailure(getEntityName());
      }
      throw new StaleObjectStateException(getEntityName(), id);
    }
  }

  private void dehydrate(
      Tuple resultset,
      final Object[] fields,
      boolean[] includeProperties,
      boolean[][] includeColumns,
      int tableIndex,
      Serializable id,
      SessionImplementor session) {
    new EntityDehydrator()
        .fields(fields)
        .gridPropertyTypes(gridPropertyTypes)
        .gridIdentifierType(gridIdentifierType)
        .id(id)
        .includeColumns(includeColumns)
        .includeProperties(includeProperties)
        .persister(this)
        .resultset(resultset)
        .session(session)
        .tableIndex(tableIndex)
        .gridDialect(gridDialect)
        .dehydrate();
  }

  // TODO copy of AbstractEntityPersister#checkVersion due to visibility
  private boolean checkVersion(final boolean[] includeProperty) {
    return includeProperty[getVersionProperty()] || getEntityMetamodel().isVersionGenerated();
  }

  // TODO make AbstractEntityPersister#isModifiableEntity protected instead
  private boolean isModifiableEntity(EntityEntry entry) {
    return (entry == null ? isMutable() : entry.isModifiableEntity());
  }

  @Override
  public Serializable insert(Object[] fields, Object object, SessionImplementor session)
      throws HibernateException {
    throw new HibernateException(
        "Identifier values generated by the database are not supported in Hibernate OGM");
  }

  @Override
  public void insert(Serializable id, Object[] fields, Object object, SessionImplementor session)
      throws HibernateException {

    final int span = getTableSpan();
    // insert operations are always dynamic in OGM
    boolean[] propertiesToInsert = getPropertiesToInsert(fields);
    for (int j = 0; j < span; j++) {
      if (isInverseTable(j)) {
        return;
      }

      // note: it is conceptually possible that a UserType could map null to
      //	  a non-null value, so the following is arguable:
      if (isNullableTable(j) && isAllNull(fields, j)) {
        return;
      }

      if (log.isTraceEnabled()) {
        log.trace("Inserting entity: " + MessageHelper.infoString(this, id, getFactory()));
        if (j == 0 && isVersioned()) {
          log.trace("Version: " + Versioning.getVersion(fields, this));
        }
      }

      final EntityKey key = EntityKeyBuilder.fromPersister(this, id, session);
      Tuple resultset = gridDialect.getTuple(key, this.getTupleContext());
      // add the discriminator
      if (j == 0) {
        if (resultset != null) {
          throw new HibernateException(
              "trying to insert an already existing entity: "
                  + MessageHelper.infoString(this, id, getFactory()));
        }

        if (discriminator.isNeeded()) {
          resultset = createNewResultSetIfNull(key, resultset, id, session);
          resultset.put(getDiscriminatorColumnName(), getDiscriminatorValue());
        }
      }

      resultset = createNewResultSetIfNull(key, resultset, id, session);

      // dehydrate
      dehydrate(
          resultset, fields, propertiesToInsert, getPropertyColumnInsertable(), j, id, session);
      gridDialect.updateTuple(resultset, key, getTupleContext());
    }
  }

  @Override
  public String getDiscriminatorColumnName() {
    return discriminator.getColumnName();
  }

  @Override
  protected String getDiscriminatorAlias() {
    return discriminator.getAlias();
  }

  private Tuple createNewResultSetIfNull(
      EntityKey key, Tuple resultset, Serializable id, SessionImplementor session) {
    if (resultset == null) {
      resultset = gridDialect.createTuple(key, getTupleContext());
      gridIdentifierType.nullSafeSet(resultset, id, getIdentifierColumnNames(), session);
    }
    return resultset;
  }

  // TODO AbstractEntityPersister#isAllNull copied because of visibility
  private boolean isAllNull(Object[] array, int tableNumber) {
    for (int i = 0; i < array.length; i++) {
      if (isPropertyOfTable(i, tableNumber) && array[i] != null) {
        return false;
      }
    }
    return true;
  }

  @Override
  public void delete(Serializable id, Object version, Object object, SessionImplementor session)
      throws HibernateException {
    final int span = getTableSpan();
    if (span > 1) {
      throw new HibernateException(
          "Hibernate OGM does not yet support entities spanning multiple tables");
    }
    final EntityMetamodel entityMetamodel = getEntityMetamodel();
    boolean isImpliedOptimisticLocking = !entityMetamodel.isVersioned() && isAllOrDirtyOptLocking();
    Object[] loadedState = null;
    if (isImpliedOptimisticLocking) {
      // need to treat this as if it where optimistic-lock="all" (dirty does *not* make sense);
      // first we need to locate the "loaded" state
      //
      // Note, it potentially could be a proxy, so doAfterTransactionCompletion the location the
      // safe way...
      org.hibernate.engine.spi.EntityKey key = session.generateEntityKey(id, this);
      Object entity = session.getPersistenceContext().getEntity(key);
      if (entity != null) {
        EntityEntry entry = session.getPersistenceContext().getEntry(entity);
        loadedState = entry.getLoadedState();
      }
    }

    final EntityKey key = EntityKeyBuilder.fromPersister(this, id, session);
    final Tuple resultset = gridDialect.getTuple(key, this.getTupleContext());
    final SessionFactoryImplementor factory = getFactory();
    if (isImpliedOptimisticLocking && loadedState != null) {
      // we need to utilize dynamic delete statements
      for (int j = span - 1; j >= 0; j--) {
        boolean[] versionability = getPropertyVersionability();

        // TODO do a diff on the properties value from resultset
        GridType[] types = gridPropertyTypes;

        for (int i = 0; i < entityMetamodel.getPropertySpan(); i++) {
          boolean include = isPropertyOfTable(i, j) && versionability[i];
          if (include) {
            final GridType type = types[i];
            final Object snapshotValue =
                type.nullSafeGet(resultset, getPropertyColumnNames(i), session, object);
            // TODO support other entity modes
            if (!type.isEqual(loadedState[i], snapshotValue, factory)) {
              if (factory.getStatistics().isStatisticsEnabled()) {
                factory.getStatisticsImplementor().optimisticFailure(getEntityName());
              }
              throw new StaleObjectStateException(getEntityName(), id);
            }
          }
        }
      }
    } else {
      if (entityMetamodel.isVersioned()) {
        checkVersionAndRaiseSOSE(id, version, session, resultset);
      }
    }

    for (int j = span - 1; j >= 0; j--) {
      if (isInverseTable(j)) {
        return;
      }
      if (log.isTraceEnabled()) {
        log.trace("Deleting entity: " + MessageHelper.infoString(this, id, factory));
        if (j == 0 && isVersioned()) {
          log.trace("Version: " + version);
        }
      }

      // delete association information
      // needs to be executed before the tuple removal because the AtomicMap in ISPN is cleared upon
      // removal
      new EntityDehydrator()
          .gridDialect(gridDialect)
          .gridPropertyTypes(gridPropertyTypes)
          .gridIdentifierType(gridIdentifierType)
          .id(id)
          .persister(this)
          .resultset(resultset)
          .session(session)
          .tableIndex(j)
          .onlyRemovePropertyMetadata()
          .dehydrate();

      gridDialect.removeTuple(key, getTupleContext());
    }
  }

  @Override
  protected int[] getSubclassColumnTableNumberClosure() {
    return new int[getSubclassColumnClosure().length];
  }

  @Override
  protected int[] getSubclassFormulaTableNumberClosure() {
    return new int[getSubclassFormulaClosure().length];
  }

  @Override
  public String getDiscriminatorSQLValue() {
    return discriminator.getSqlValue();
  }

  @Override
  public String[] getConstraintOrderedTableNameClosure() {
    return constraintOrderedTableNames;
  }

  @Override
  public String[][] getContraintOrderedTableKeyColumnClosure() {
    return constraintOrderedKeyColumnNames;
  }

  @Override
  public String getSubclassTableName(int j) {
    if (j != 0) {
      throw new AssertionFailure("only one table");
    }
    return tableName;
  }

  @Override
  protected String[] getSubclassTableKeyColumns(int j) {
    if (j != 0) {
      throw new AssertionFailure("only one table");
    }
    return getIdentifierColumnNames();
  }

  @Override
  protected boolean isClassOrSuperclassTable(int j) {
    if (j != 0) {
      throw new AssertionFailure("only one table");
    }
    return true;
  }

  @Override
  protected int getSubclassTableSpan() {
    return 1;
  }

  @Override
  protected int getTableSpan() {
    return TABLE_SPAN;
  }

  @Override
  protected boolean isTableCascadeDeleteEnabled(int j) {
    return false;
  }

  @Override
  protected String getTableName(int j) {
    return tableName;
  }

  @Override
  protected String[] getKeyColumns(int j) {
    return getIdentifierColumnNames();
  }

  @Override
  protected boolean isPropertyOfTable(int property, int j) {
    return true;
  }

  @Override
  protected int[] getPropertyTableNumbersInSelect() {
    return new int[getPropertySpan()];
  }

  @Override
  protected int[] getPropertyTableNumbers() {
    return new int[getPropertySpan()];
  }

  @Override
  protected int getSubclassPropertyTableNumber(int i) {
    return 0;
  }

  @Override
  protected String filterFragment(String alias) throws MappingException {
    // TODO support filter in OGM??? How???
    return "";
    //		return hasWhere() ?
    //			" and " + getSQLWhereString(alias) :
    //			"";
  }

  @Override
  public String getSubclassPropertyTableName(int i) {
    return getTableName(); // ie. the subquery! yuck!
  }

  // FIXME useful?
  @Override
  public String fromTableFragment(String alias) {
    return getTableName() + ' ' + alias;
  }

  @Override
  public String getPropertyTableName(String propertyName) {
    // TODO: check this....
    return getTableName();
  }

  @Override
  public String getTableName() {
    // FIXME it should be the subquery ie include the subclasses as well in SQL (union logic)
    return tableName;
  }

  @Override
  public Type getDiscriminatorType() {
    return IntegerType.INSTANCE;
  }

  @Override
  public Object getDiscriminatorValue() {
    return discriminator.getValue();
  }

  @Override
  public String getSubclassForDiscriminatorValue(Object value) {
    return discriminator.provideClassByValue(value);
  }

  @Override
  public Serializable[] getPropertySpaces() {
    return spaces;
  }

  public TupleContext getTupleContext() {
    return tupleContext;
  }

  public String getJpaEntityName() {
    return jpaEntityName;
  }

  @Override
  public void processInsertGeneratedProperties(
      Serializable id, Object entity, Object[] state, SessionImplementor session) {
    if (!hasUpdateGeneratedProperties()) {
      throw new AssertionFailure("no insert-generated properties");
    }
    processGeneratedProperties(id, entity, state, session, GenerationTiming.INSERT);
  }

  @Override
  public void processUpdateGeneratedProperties(
      Serializable id, Object entity, Object[] state, SessionImplementor session) {
    if (!hasUpdateGeneratedProperties()) {
      throw new AssertionFailure("no update-generated properties");
    }
    processGeneratedProperties(id, entity, state, session, GenerationTiming.ALWAYS);
  }

  /**
   * Re-reads the given entity, refreshing any properties updated on the server-side during insert
   * or update.
   */
  private void processGeneratedProperties(
      Serializable id,
      Object entity,
      Object[] state,
      SessionImplementor session,
      GenerationTiming matchTiming) {

    Tuple tuple = getResultsetById(id, session);

    if (tuple == null || tuple.getSnapshot().isEmpty()) {
      throw log.couldNotRetrieveEntityForRetrievalOfGeneratedProperties(getEntityName(), id);
    }

    int propertyIndex = -1;
    for (NonIdentifierAttribute attribute : getEntityMetamodel().getProperties()) {
      propertyIndex++;
      final ValueGeneration valueGeneration = attribute.getValueGenerationStrategy();
      if (isReadRequired(valueGeneration, matchTiming)) {
        Object hydratedState =
            gridPropertyTypes[propertyIndex].hydrate(
                tuple, getPropertyAliases("", propertyIndex), session, entity);
        state[propertyIndex] =
            gridPropertyTypes[propertyIndex].resolve(hydratedState, session, entity);
        setPropertyValue(entity, propertyIndex, state[propertyIndex]);
      }
    }
  }

  /**
   * Whether the given value generation strategy requires to read the value from the database or
   * not.
   */
  private boolean isReadRequired(ValueGeneration valueGeneration, GenerationTiming matchTiming) {
    return valueGeneration != null
        && valueGeneration.getValueGenerator() == null
        && timingsMatch(valueGeneration.getGenerationTiming(), matchTiming);
  }

  private boolean timingsMatch(GenerationTiming timing, GenerationTiming matchTiming) {
    return (matchTiming == GenerationTiming.INSERT && timing.includesInsert())
        || (matchTiming == GenerationTiming.ALWAYS && timing.includesUpdate());
  }
}
Ejemplo n.º 5
0
/**
 * Extension point allowing any NoSQL native query with named and positional parameters to be
 * executed by OGM on the corresponding backend, returning managed entities, collections and simple
 * scalar values.
 *
 * @author Davide D'Alto &lt;[email protected]&gt;
 */
public class BackendCustomQuery<T extends Serializable> implements CustomQuery, Serializable {

  private static final Log LOG = LoggerFactory.make();

  private final String queryString;
  private final T queryObject;
  private final Set<String> querySpaces;
  private final List<Return> customQueryReturns;

  private final EntityMetadataInformation singleEntityMetadataInformation;

  public BackendCustomQuery(
      String queryString,
      T query,
      NativeSQLQueryReturn[] queryReturns,
      Set<String> querySpaces,
      SessionFactoryImplementor factory)
      throws HibernateException {
    LOG.tracev("Starting processing of NoSQL query [{0}]", queryString);

    this.queryString = queryString;
    this.queryObject = query;

    SQLQueryReturnProcessor processor = new SQLQueryReturnProcessor(queryReturns, factory);
    processor.process();
    customQueryReturns = Collections.unmodifiableList(processor.generateCustomReturns(false));

    if (querySpaces != null) {
      this.querySpaces = Collections.<String>unmodifiableSet(querySpaces);
    } else {
      this.querySpaces = Collections.emptySet();
    }

    this.singleEntityMetadataInformation =
        determineSingleEntityMetadataInformation(factory, customQueryReturns);
  }

  private EntityMetadataInformation determineSingleEntityMetadataInformation(
      SessionFactoryImplementor sessionFactory, List<Return> customQueryReturns) {
    EntityMetadataInformation metadataInformation = null;

    for (Return queryReturn : customQueryReturns) {
      if (queryReturn instanceof RootReturn) {
        if (metadataInformation != null) {
          return null;
        }
        RootReturn rootReturn = (RootReturn) queryReturn;
        OgmEntityPersister persister =
            (OgmEntityPersister) sessionFactory.getEntityPersister(rootReturn.getEntityName());
        metadataInformation =
            new EntityMetadataInformation(
                persister.getEntityKeyMetadata(), rootReturn.getEntityName());
      }
    }

    return metadataInformation;
  }

  /** @deprecated Use {@link #getQueryString()} instead. */
  @Override
  @Deprecated
  public String getSQL() {
    return getQueryString();
  }

  public String getQueryString() {
    return queryString;
  }

  /**
   * Returns an object-based representation of this query, if present.
   *
   * @return an object-based representation of this query, or {@code null} if this is a string-based
   *     query.
   */
  public T getQueryObject() {
    return queryObject;
  }

  @Override
  public Set<String> getQuerySpaces() {
    return querySpaces;
  }

  @Override
  public Map<?, ?> getNamedParameterBindPoints() {
    // TODO: Should this actually be something more sensible?
    return Collections.emptyMap();
  }

  @Override
  public List<Return> getCustomQueryReturns() {
    return customQueryReturns;
  }

  /**
   * Returns the {@link EntityMetadataInformation} of the entity type selected by this query.
   *
   * @return the {@link EntityMetadataInformation} of the entity type selected by this query or
   *     {@code null} in case this query does not select exactly one entity type (e.g. in case of
   *     scalar values or joins (if supported in future revisions)).
   */
  public EntityMetadataInformation getSingleEntityMetadataInformationOrNull() {
    return singleEntityMetadataInformation;
  }

  @Override
  public String toString() {
    return queryObject != null ? queryObject.toString() : queryString;
  }
}
/**
 * A JUnit 4 runner for OGM tests. Based on a given set of entities, it manages a session factory,
 * which is used throughout all test methods of the given test class.
 *
 * <p>The entities of the test are to be returned by a parameterless method annotated with {@link
 * TestEntities} in form of a {@code Class<?>[]}.
 *
 * <p>The used session factory can be obtained by annotating a field of type {@link SessionFactory}
 * with the {@link TestSessionFactory} annotation. The runner will inject the factory in this field
 * then. Depending on the {@link TestSessionFactory#scope() } setting, either the same session
 * factory instance will be used for all test methods of a given test class or a new session factory
 * will be created and injected for each individual test method.
 *
 * <p>Finally the {@link Configuration} used for bootstrapping the factory can optionally be
 * modified by annotating a configuration method with the {@link SessionFactoryConfiguration} a
 * shown in the example below.
 *
 * <p>Usage example:
 *
 * <pre>{@code
 * @RunWith(OgmTestRunner.class)
 * public class AnimalFarmTest {
 *
 *     @TestSessionFactory
 *     public SessionFactory sessions;
 *
 *     @Test
 *     public void shouldCountAnimals() throws Exception {
 *         Session session = sessions.openSession();
 *         ...
 *         session.close();
 *     }
 *
 *    @SessionFactoryConfiguration
 *    public static void configure(Configuration cfg) {
 *        cfg.setProperty(
 *            Environment.MONGODB_ASSOCIATIONS_STORE,
 *            AssociationStorage.COLLECTION.name()
 *        );
 *    }
 *
 *    @TestEntities
 *    public Class<?>[] getTestEntities() {
 *        return new Class<?>[]{ PolarBear.class, Giraffe.class };
 *    }
 * }
 * }</pre>
 *
 * @see OgmTestCase Base class for tests which is configured with this runner for ease of use
 * @author Gunnar Morling
 */
public class OgmTestRunner extends GridDialectSkippableTestRunner {

  private static final Log LOG = LoggerFactory.make();

  private final Set<Field> testScopedFactoryFields;
  private final Set<Field> testMethodScopedFactoryFields;

  private SessionFactory testScopedSessionFactory;
  private SessionFactory testMethodScopedSessionFactory;

  public OgmTestRunner(Class<?> klass) throws InitializationError {
    super(klass);

    testScopedFactoryFields = getTestFactoryFields(getTestClass(), Scope.TEST_CLASS);
    testMethodScopedFactoryFields = getTestFactoryFields(getTestClass(), Scope.TEST_METHOD);
  }

  private static Set<Field> getTestFactoryFields(
      TestClass testClass, TestSessionFactory.Scope scope) {
    Set<Field> testFactoryFields = new HashSet<Field>();

    for (FrameworkField frameworkField : testClass.getAnnotatedFields(TestSessionFactory.class)) {
      Field field = frameworkField.getField();
      if (scope == field.getAnnotation(TestSessionFactory.class).scope()) {
        field.setAccessible(true);
        testFactoryFields.add(field);
      }
    }

    return testFactoryFields;
  }

  @Override
  public void run(RunNotifier notifier) {
    if (isTestScopedSessionFactoryRequired()) {
      testScopedSessionFactory = buildSessionFactory();
      injectSessionFactory(null, testScopedFactoryFields, testScopedSessionFactory);
    }

    try {
      super.run(notifier);
    } finally {
      if (testScopedSessionFactory != null) {
        cleanUpPendingTransactionIfRequired();
        TestHelper.dropSchemaAndDatabase(testScopedSessionFactory);
        testScopedSessionFactory.close();
      }
    }
  }

  @Override
  protected void runChild(FrameworkMethod method, RunNotifier notifier) {
    // create test method scoped SF if required; it will be injected in createTest()
    if (isTestMethodScopedSessionFactoryRequired(method)) {
      testMethodScopedSessionFactory = buildSessionFactory();
    }

    try {
      super.runChild(method, notifier);
    } finally {
      if (testMethodScopedSessionFactory != null) {
        testMethodScopedSessionFactory.close();
      }
    }
  }

  private boolean isTestScopedSessionFactoryRequired() {
    return !isTestClassSkipped() && !areAllTestMethodsSkipped();
  }

  private boolean isTestMethodScopedSessionFactoryRequired(FrameworkMethod method) {
    return !testMethodScopedFactoryFields.isEmpty() && !super.isTestMethodSkipped(method);
  }

  private void cleanUpPendingTransactionIfRequired() {
    TransactionManager transactionManager =
        ((SessionFactoryImplementor) testScopedSessionFactory)
            .getServiceRegistry()
            .getService(JtaPlatform.class)
            .retrieveTransactionManager();

    try {
      if (transactionManager != null && transactionManager.getTransaction() != null) {
        LOG.warn(
            "The test started a transaction but failed to commit it or roll it back. Going to roll it back.");
        transactionManager.rollback();
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

  protected SessionFactory buildSessionFactory() {
    Class<?>[] classes = getConfiguredEntityTypes();
    Configuration configuration = createConfiguration(classes);

    return configuration.buildSessionFactory();
  }

  private Class<?>[] getConfiguredEntityTypes() {
    for (FrameworkMethod frameworkMethod : getTestClass().getAnnotatedMethods(TestEntities.class)) {
      Method method = frameworkMethod.getMethod();
      method.setAccessible(true);

      if (method.getReturnType() != Class[].class || method.getParameterTypes().length > 0) {
        throw new IllegalStateException(
            "Method annotated with "
                + TestEntities.class.getSimpleName()
                + " must have no parameters and must return Class<?>[].");
      }
      try {
        return (Class<?>[]) method.invoke(super.createTest());
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    }

    throw new IllegalStateException(
        "The entities of the test must be retrievable via a parameterless method which is annotated with "
            + TestEntities.class.getSimpleName()
            + " and returns Class<?>[].");
  }

  private Configuration createConfiguration(Class<?>[] entityTypes) {
    if (entityTypes == null || entityTypes.length == 0) {
      throw new IllegalArgumentException("Define at least a single annotated entity");
    }

    OgmConfiguration configuration = TestHelper.getDefaultTestConfiguration(entityTypes);
    invokeTestConfigurationMethod(configuration);

    return configuration;
  }

  private void invokeTestConfigurationMethod(OgmConfiguration configuration) {
    try {
      for (FrameworkMethod frameworkMethod :
          getTestClass().getAnnotatedMethods(SessionFactoryConfiguration.class)) {
        Method method = frameworkMethod.getMethod();
        method.setAccessible(true);
        method.invoke(super.createTest(), configuration);
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

  @Override
  protected Object createTest() throws Exception {
    Object test = super.createTest();

    // inject SFs as per given scopes
    if (!testScopedFactoryFields.isEmpty()) {
      injectSessionFactory(test, testScopedFactoryFields, testScopedSessionFactory);
    }
    if (!testMethodScopedFactoryFields.isEmpty()) {
      injectSessionFactory(test, testMethodScopedFactoryFields, testMethodScopedSessionFactory);
    }

    return test;
  }

  private void injectSessionFactory(
      Object test, Iterable<Field> fields, SessionFactory sessionFactory) {
    for (Field field : fields) {
      try {
        if ((test == null && Modifier.isStatic(field.getModifiers()))
            || (test != null && !Modifier.isStatic(field.getModifiers()))) {
          field.set(test, sessionFactory);
        }
      } catch (Exception e) {
        throw new RuntimeException("Can't inject session factory into field " + field);
      }
    }
  }
}
Ejemplo n.º 7
0
/**
 * @author Emmanuel Bernard <*****@*****.**>
 * @author Sanne Grinovero <*****@*****.**>
 */
public class TestHelper {

  private static final Log log = LoggerFactory.make();
  private static final TestableGridDialect helper = createStoreSpecificHelper();

  static {
    // set 5 hours timeout on transactions: enough for debug, but not too high in case of CI
    // problems.
    TxControl.setDefaultTimeout(60 * 60 * 2);
  }

  private TestHelper() {}

  public static long getNumberOfEntities(EntityManager em) {
    return getNumberOfEntities(em.unwrap(Session.class));
  }

  private static TestableGridDialect createStoreSpecificHelper() {
    for (GridDialectType gridType : GridDialectType.values()) {
      Class<?> classForName = gridType.loadTestableGridDialectClass();
      if (classForName != null) {
        try {
          TestableGridDialect attempt = (TestableGridDialect) classForName.newInstance();
          log.debugf("Using TestGridDialect %s", classForName);
          return attempt;
        } catch (Exception e) {
          // but other errors are not expected:
          log.errorf(e, "Could not load TestGridDialect by name from %s", gridType);
        }
      }
    }
    return new org.hibernate.ogm.utils.HashMapTestHelper();
  }

  public static GridDialectType getCurrentDialectType() {
    return GridDialectType.valueFromHelperClass(helper.getClass());
  }

  public static long getNumberOfEntities(Session session) {
    return getNumberOfEntities(session.getSessionFactory());
  }

  public static long getNumberOfEntities(SessionFactory sessionFactory) {
    return helper.getNumberOfEntities(sessionFactory);
  }

  public static Map<String, Object> extractEntityTuple(
      SessionFactory sessionFactory, EntityKey key) {
    return helper.extractEntityTuple(sessionFactory, key);
  }

  public static long getNumberOfAssociations(SessionFactory sessionFactory) {
    return helper.getNumberOfAssociations(sessionFactory);
  }

  /**
   * Returns the number of associations of the given type.
   *
   * <p>Optional operation which only is supported for document datastores.
   */
  public static long getNumberOfAssociations(
      SessionFactory sessionFactory, AssociationStorageType type) {
    return helper.getNumberOfAssociations(sessionFactory, type);
  }

  /**
   * Returns the number of collections stored embedded within an entity structure in the datastore
   *
   * <p>Optional operation which only is supported for document datastores.
   */
  public static long getNumberOfEmbeddedCollections(SessionFactory sessionFactory) {
    return helper.getNumberOEmbeddedCollections(sessionFactory);
  }

  public static boolean backendSupportsTransactions() {
    return helper.backendSupportsTransactions();
  }

  @SuppressWarnings("unchecked")
  public static <T> T get(Session session, Class<T> clazz, Serializable id) {
    return (T) session.get(clazz, id);
  }

  public static void dropSchemaAndDatabase(Session session) {
    if (session != null) {
      dropSchemaAndDatabase(session.getSessionFactory());
    }
  }

  public static void dropSchemaAndDatabase(EntityManagerFactory emf) {
    dropSchemaAndDatabase(((HibernateEntityManagerFactory) emf).getSessionFactory());
  }

  public static void dropSchemaAndDatabase(SessionFactory sessionFactory) {
    // if the factory is closed, we don't have access to the service registry
    if (sessionFactory != null && !sessionFactory.isClosed()) {
      try {
        helper.dropSchemaAndDatabase(sessionFactory);
      } catch (Exception e) {
        log.warn("Exception while dropping schema and database in test", e);
      }
    }
  }

  public static Map<String, String> getEnvironmentProperties() {
    // TODO hibernate.properties is ignored due to HHH-8635, thus explicitly load its properties
    Map<String, String> properties = getHibernateProperties();
    Map<String, String> environmentProperties = helper.getEnvironmentProperties();

    if (environmentProperties != null) {
      properties.putAll(environmentProperties);
    }

    return properties;
  }

  private static Map<String, String> getHibernateProperties() {
    InputStream hibernatePropertiesStream = null;
    Map<String, String> properties = new HashMap<String, String>();

    try {
      hibernatePropertiesStream = TestHelper.class.getResourceAsStream("/hibernate.properties");
      Properties hibernateProperties = new Properties();
      hibernateProperties.load(hibernatePropertiesStream);

      for (Entry<Object, Object> property : hibernateProperties.entrySet()) {
        properties.put(property.getKey().toString(), property.getValue().toString());
      }

      return properties;
    } catch (Exception e) {
      throw new RuntimeException(e);
    } finally {
      closeQuietly(hibernatePropertiesStream);
    }
  }

  private static void closeQuietly(InputStream stream) {
    if (stream != null) {
      try {
        stream.close();
      } catch (IOException e) {
        // ignore
      }
    }
  }

  public static void checkCleanCache(SessionFactory sessionFactory) {
    assertThat(getNumberOfEntities(sessionFactory)).as("Entity cache should be empty").isEqualTo(0);
    assertThat(getNumberOfAssociations(sessionFactory))
        .as("Association cache should be empty")
        .isEqualTo(0);
  }

  /**
   * Provides a default {@link OgmConfiguration} for tests, using the given set of annotated entity
   * types.
   *
   * @param entityTypes the entity types for which to build a configuration
   * @return a default configuration based on the given types
   */
  public static OgmConfiguration getDefaultTestConfiguration(Class<?>... entityTypes) {
    OgmConfiguration configuration = new OgmConfiguration();

    // by default use the new id generator scheme...
    configuration.setProperty(Configuration.USE_NEW_ID_GENERATOR_MAPPINGS, "true");

    for (Map.Entry<String, String> entry : TestHelper.getEnvironmentProperties().entrySet()) {
      configuration.setProperty(entry.getKey(), entry.getValue());
    }

    configuration.setProperty(Environment.HBM2DDL_AUTO, "none");

    // volatile indexes for Hibernate Search (if used)
    configuration.setProperty("hibernate.search.default.directory_provider", "ram");
    // disable warnings about unspecified Lucene version
    configuration.setProperty("hibernate.search.lucene_version", "LUCENE_35");

    for (Class<?> aClass : entityTypes) {
      configuration.addAnnotatedClass(aClass);
    }

    return configuration;
  }

  /**
   * Returns a {@link GlobalContext} for configuring the current datastore.
   *
   * @param configuration the target the configuration will be applied to
   * @return a context object for configuring the current datastore.
   */
  public static GlobalContext<?, ?> configureDatastore(OgmConfiguration configuration) {
    return helper.configureDatastore(configuration);
  }
}
Ejemplo n.º 8
0
/**
 * An OGM specific session implementation which delegate most of the work to the underlying
 * Hibernate ORM {@code Session}, except queries which are redirected to the OGM engine.
 *
 * @author Emmanuel Bernard &lt;[email protected]&gt;
 */
public class OgmSessionImpl extends SessionDelegatorBaseImpl implements OgmSession, EventSource {

  private static final Log log = LoggerFactory.make();

  private final EventSource delegate;
  private final OgmSessionFactoryImpl factory;

  public OgmSessionImpl(OgmSessionFactory factory, EventSource delegate) {
    super(delegate, delegate);
    this.delegate = delegate;
    this.factory = (OgmSessionFactoryImpl) factory;
  }

  // Overridden methods
  @Override
  public SessionFactoryImplementor getFactory() {
    return factory;
  }

  @Override
  public OgmSessionFactory getSessionFactory() {
    return factory;
  }

  @Override
  public Criteria createCriteria(Class persistentClass) {
    // TODO plug the Lucene engine
    throw new NotSupportedException("OGM-23", "Criteria queries are not supported yet");
  }

  @Override
  public Criteria createCriteria(Class persistentClass, String alias) {
    // TODO plug the Lucene engine
    throw new NotSupportedException("OGM-23", "Criteria queries are not supported yet");
  }

  @Override
  public Criteria createCriteria(String entityName) {
    // TODO plug the Lucene engine
    throw new NotSupportedException("OGM-23", "Criteria queries are not supported yet");
  }

  @Override
  public Criteria createCriteria(String entityName, String alias) {
    // TODO plug the Lucene engine
    throw new NotSupportedException("OGM-23", "Criteria queries are not supported yet");
  }

  @Override
  public Query createQuery(NamedQueryDefinition namedQueryDefinition) {
    errorIfClosed();
    checkTransactionSynchStatus();

    String queryString = namedQueryDefinition.getQueryString();
    Query query = createQuery(queryString);
    query.setComment("named HQL/JP-QL query " + namedQueryDefinition.getName());
    query.setFlushMode(namedQueryDefinition.getFlushMode());
    return query;
  }

  @Override
  public NoSQLQuery createSQLQuery(String queryString) throws HibernateException {
    return createNativeQuery(queryString);
  }

  @Override
  public SQLQuery createSQLQuery(NamedSQLQueryDefinition namedQueryDefinition) {
    return createNativeQuery(namedQueryDefinition.getQuery());
  }

  @Override
  public NoSQLQuery createNativeQuery(String nativeQuery) {
    errorIfClosed();
    checkTransactionSynchStatus();

    return new NoSQLQueryImpl(
        nativeQuery, this, factory.getQueryPlanCache().getSQLParameterMetadata(nativeQuery));
  }

  @Override
  public Query createFilter(Object collection, String queryString) throws HibernateException {
    // TODO plug the Lucene engine
    throw new NotSupportedException("OGM-24", "filters are not supported yet");
  }

  @Override
  public Filter enableFilter(String filterName) {
    throw new NotSupportedException("OGM-25", "filters are not supported yet");
  }

  @Override
  public Filter getEnabledFilter(String filterName) {
    return delegate.getEnabledFilter(filterName);
  }

  @Override
  public void disableFilter(String filterName) {
    throw new NotSupportedException("OGM-25", "filters are not supported yet");
  }

  @Override
  public void doWork(Work work) throws HibernateException {
    throw new IllegalStateException("Hibernate OGM does not support SQL Connections hence no Work");
  }

  @Override
  public <T> T doReturningWork(ReturningWork<T> work) throws HibernateException {
    return delegate.doReturningWork(work);
  }

  @Override
  public ProcedureCall getNamedProcedureCall(String name) {
    throw new NotSupportedException("OGM-359", "Stored procedures are not supported yet");
  }

  @Override
  public ProcedureCall createStoredProcedureCall(String procedureName) {
    throw new NotSupportedException("OGM-359", "Stored procedures are not supported yet");
  }

  @Override
  public ProcedureCall createStoredProcedureCall(String procedureName, Class... resultClasses) {
    throw new NotSupportedException("OGM-359", "Stored procedures are not supported yet");
  }

  @Override
  public ProcedureCall createStoredProcedureCall(
      String procedureName, String... resultSetMappings) {
    throw new NotSupportedException("OGM-359", "Stored procedures are not supported yet");
  }

  // Event Source methods
  @Override
  public ActionQueue getActionQueue() {
    return delegate.getActionQueue();
  }

  @Override
  public Object instantiate(EntityPersister persister, Serializable id) throws HibernateException {
    return delegate.instantiate(persister, id);
  }

  @Override
  public void forceFlush(EntityEntry e) throws HibernateException {
    delegate.forceFlush(e);
  }

  @Override
  public void merge(String entityName, Object object, Map copiedAlready) throws HibernateException {
    delegate.merge(entityName, object, copiedAlready);
  }

  @Override
  public void persist(String entityName, Object object, Map createdAlready)
      throws HibernateException {
    delegate.persist(entityName, object, createdAlready);
  }

  @Override
  public void persistOnFlush(String entityName, Object object, Map copiedAlready) {
    delegate.persistOnFlush(entityName, object, copiedAlready);
  }

  @Override
  public void refresh(String entityName, Object object, Map refreshedAlready)
      throws HibernateException {
    delegate.refresh(entityName, object, refreshedAlready);
  }

  @Override
  public void delete(
      String entityName, Object child, boolean isCascadeDeleteEnabled, Set transientEntities) {
    delegate.delete(entityName, child, isCascadeDeleteEnabled, transientEntities);
  }

  @Override
  public JdbcConnectionAccess getJdbcConnectionAccess() {
    return delegate.getJdbcConnectionAccess();
  }

  @Override
  public EntityKey generateEntityKey(Serializable id, EntityPersister persister) {
    return delegate.generateEntityKey(id, persister);
  }

  @Override
  public List<?> listCustomQuery(CustomQuery customQuery, QueryParameters queryParameters)
      throws HibernateException {
    errorIfClosed();
    checkTransactionSynchStatus();

    if (log.isTraceEnabled()) {
      log.tracev("NoSQL query: {0}", customQuery.getSQL());
    }

    BackendCustomLoader loader =
        new BackendCustomLoader((BackendCustomQuery<?>) customQuery, getFactory());
    autoFlushIfRequired(loader.getQuerySpaces());

    return loader.list(getDelegate(), queryParameters);
  }

  /**
   * detect in-memory changes, determine if the changes are to tables named in the query and, if so,
   * complete execution the flush
   *
   * <p>NOTE: Copied as-is from {@link SessionImpl}. We need it here as {@link
   * #listCustomQuery(CustomQuery, QueryParameters)} needs to be customized (which makes use of auto
   * flushes) to work with our custom loaders.
   */
  private boolean autoFlushIfRequired(Set<String> querySpaces) throws HibernateException {
    if (!isTransactionInProgress()) {
      // do not auto-flush while outside a transaction
      return false;
    }
    AutoFlushEvent event = new AutoFlushEvent(querySpaces, getDelegate());
    for (AutoFlushEventListener listener : listeners(EventType.AUTO_FLUSH)) {
      listener.onAutoFlush(event);
    }
    return event.isFlushRequired();
  }

  private <T> Iterable<T> listeners(EventType<T> type) {
    return eventListenerGroup(type).listeners();
  }

  private <T> EventListenerGroup<T> eventListenerGroup(EventType<T> type) {
    return factory
        .getServiceRegistry()
        .getService(EventListenerRegistry.class)
        .getEventListenerGroup(type);
  }

  @Override
  public ScrollableResults scrollCustomQuery(
      CustomQuery customQuery, QueryParameters queryParameters) throws HibernateException {
    return delegate.scrollCustomQuery(customQuery, queryParameters);
  }

  @Override
  public List<?> list(NativeSQLQuerySpecification spec, QueryParameters queryParameters)
      throws HibernateException {
    return listCustomQuery(
        factory.getQueryPlanCache().getNativeSQLQueryPlan(spec).getCustomQuery(), queryParameters);
  }

  @Override
  public ScrollableResults scroll(NativeSQLQuerySpecification spec, QueryParameters queryParameters)
      throws HibernateException {
    return delegate.scroll(spec, queryParameters);
  }

  // SessionImplementor methods
  @Override
  public Query getNamedQuery(String name) {
    errorIfClosed();
    checkTransactionSynchStatus();

    NamedQueryDefinition namedQuery = factory.getNamedQuery(name);
    // ORM looks for native queries when no HQL definition is found, we do the same here.
    if (namedQuery == null) {
      return getNamedSQLQuery(name);
    }

    return createQuery(namedQuery);
  }

  @Override
  public Query getNamedSQLQuery(String queryName) {
    errorIfClosed();
    checkTransactionSynchStatus();

    NamedSQLQueryDefinition nsqlqd = findNamedNativeQuery(queryName);
    Query query =
        new NoSQLQueryImpl(
            nsqlqd, this, factory.getQueryPlanCache().getSQLParameterMetadata(nsqlqd.getQuery()));
    query.setComment("named native query " + queryName);
    return query;
  }

  private NamedSQLQueryDefinition findNamedNativeQuery(String queryName) {
    NamedSQLQueryDefinition nsqlqd = factory.getNamedSQLQuery(queryName);
    if (nsqlqd == null) {
      throw new MappingException("Named native query not found: " + queryName);
    }
    return nsqlqd;
  }

  @Override
  public SharedSessionBuilder sessionWithOptions() {
    return new OgmSharedSessionBuilderDelegator(delegate.sessionWithOptions(), factory);
  }

  // Copied from org.hibernate.internal.AbstractSessionImpl.errorIfClosed() to mimic same behaviour
  protected void errorIfClosed() {
    if (delegate.isClosed()) {
      throw new SessionException("Session is closed!");
    }
  }

  // Copied from org.hibernate.internal.SessionImpl.checkTransactionSynchStatus() to mimic same
  // behaviour
  private void checkTransactionSynchStatus() {
    pulseTransactionCoordinator();
    delayedAfterCompletion();
  }

  // Copied from org.hibernate.internal.SessionImpl.pulseTransactionCoordinator() to mimic same
  // behaviour
  private void pulseTransactionCoordinator() {
    if (!isClosed()) {
      delegate.getTransactionCoordinator().pulse();
    }
  }

  // Copied from org.hibernate.internal.SessionImpl.delayedAfterCompletion() to mimic same behaviour
  private void delayedAfterCompletion() {
    if (delegate.getTransactionCoordinator() instanceof JtaTransactionCoordinatorImpl) {
      ((JtaTransactionCoordinatorImpl) delegate.getTransactionCoordinator())
          .getSynchronizationCallbackCoordinator()
          .processAnyDelayedAfterCompletion();
    }
  }

  public <G extends GlobalContext<?, ?>, D extends DatastoreConfiguration<G>> G configureDatastore(
      Class<D> datastoreType) {
    throw new UnsupportedOperationException(
        "OGM-343 Session specific options are not currently supported");
  }

  @Override
  public void removeOrphanBeforeUpdates(String entityName, Object child) {
    delegate.removeOrphanBeforeUpdates(entityName, child);
  }

  /**
   * Returns the underlying ORM session to which most work is delegated.
   *
   * @return the underlying session
   */
  public EventSource getDelegate() {
    return delegate;
  }

  @Override
  public NaturalIdLoadAccess byNaturalId(Class entityClass) {
    throw new UnsupportedOperationException("OGM-589 - Natural id look-ups are not yet supported");
  }

  @Override
  public NaturalIdLoadAccess byNaturalId(String entityName) {
    throw new UnsupportedOperationException("OGM-589 - Natural id look-ups are not yet supported");
  }

  @Override
  public SimpleNaturalIdLoadAccess bySimpleNaturalId(Class entityClass) {
    throw new UnsupportedOperationException("OGM-589 - Natural id look-ups are not yet supported");
  }

  @Override
  public SimpleNaturalIdLoadAccess bySimpleNaturalId(String entityName) {
    throw new UnsupportedOperationException("OGM-589 - Natural id look-ups are not yet supported");
  }
}