/*
* Hibernate Search, full-text search for your domain model
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.search.query.hibernate.impl;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import org.hibernate.engine.spi.EntityKey;
import org.hibernate.engine.spi.PersistenceContext;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.search.query.engine.spi.EntityInfo;
import org.hibernate.search.util.logging.impl.Log;
import org.hibernate.search.util.logging.impl.LoggerFactory;
/**
* @author Emmanuel Bernard <emmanuel@hibernate.org>
*/
public class PersistenceContextObjectInitializer implements ObjectInitializer {
private static final Log log = LoggerFactory.make();
private final ObjectInitializer delegate;
public PersistenceContextObjectInitializer(ObjectInitializer delegate) {
this.delegate = delegate;
}
@Override
public void initializeObjects(EntityInfo[] entityInfos,
LinkedHashMap<EntityInfoLoadKey, Object> idToObjectMap,
ObjectInitializationContext objectInitializationContext) {
// Do not call isTimeOut here as the caller might be the last biggie on the list.
final int numberOfObjectsToInitialize = entityInfos.length;
if ( numberOfObjectsToInitialize == 0 ) {
if ( log.isTraceEnabled() ) {
log.tracef( "No object to initialize", numberOfObjectsToInitialize );
}
return;
}
SessionImplementor sessionImplementor = (SessionImplementor) objectInitializationContext.getSession();
String entityName = objectInitializationContext.getSession()
.getSessionFactory().getClassMetadata( objectInitializationContext.getEntityType() ).getEntityName();
EntityPersister persister = sessionImplementor.getFactory().getEntityPersister( entityName );
PersistenceContext persistenceContext = sessionImplementor.getPersistenceContext();
//check the persistence context
List<EntityInfo> remainingEntityInfos = new ArrayList<>( numberOfObjectsToInitialize );
for ( EntityInfo entityInfo : entityInfos ) {
if ( ObjectLoaderHelper.areDocIdAndEntityIdIdentical( entityInfo, objectInitializationContext.getSession() ) ) {
EntityKey entityKey = sessionImplementor.generateEntityKey( entityInfo.getId(), persister );
Object o = persistenceContext.getEntity( entityKey );
if ( o == null ) {
remainingEntityInfos.add( entityInfo );
}
else {
EntityInfoLoadKey key = new EntityInfoLoadKey( entityInfo.getClazz(), entityInfo.getId() );
idToObjectMap.put( key, o );
}
}
else {
// if document id != entity id we can't use PC lookup
remainingEntityInfos.add( entityInfo );
}
}
//update entityInfos to only contains the remaining ones
final int remainingSize = remainingEntityInfos.size();
if ( log.isTraceEnabled() ) {
log.tracef(
"Initialized %d objects out of %d in the persistence context",
numberOfObjectsToInitialize - remainingSize, numberOfObjectsToInitialize
);
}
if ( remainingSize > 0 ) {
delegate.initializeObjects(
remainingEntityInfos.toArray( new EntityInfo[remainingSize] ),
idToObjectMap,
objectInitializationContext
);
}
}
}