/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.hibernate.search.query.hibernate.impl;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.hibernate.engine.EntityKey;
import org.hibernate.engine.PersistenceContext;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.search.query.engine.spi.EntityInfo;
import org.hibernate.search.engine.SearchFactoryImplementor;
import org.hibernate.search.query.engine.spi.TimeoutManager;
import org.hibernate.search.util.LoggerFactory;
/**
* @author Emmanuel Bernard <emmanuel@hibernate.org>
*/
public class PersistenceContextObjectsInitializer implements ObjectsInitializer {
private static final Logger log = LoggerFactory.make();
private final ObjectsInitializer delegate;
public PersistenceContextObjectsInitializer(ObjectsInitializer delegate) {
this.delegate = delegate;
}
public void initializeObjects(EntityInfo[] entityInfos,
Criteria criteria, Class<?> entityType,
SearchFactoryImplementor searchFactoryImplementor,
TimeoutManager timeoutManager,
Session session) {
//Do not call isTimeOut here as the caller might be the last biggie on the list.
final int maxResults = entityInfos.length;
if ( maxResults == 0 ) {
log.trace( "No object to initialize", maxResults );
return;
}
SessionImplementor sessionImplementor = (SessionImplementor) session;
String entityName = session.getSessionFactory().getClassMetadata( entityType ).getEntityName();
EntityPersister persister = sessionImplementor.getFactory().getEntityPersister( entityName );
PersistenceContext persistenceContext = sessionImplementor.getPersistenceContext();
//check the persistence context
List<EntityInfo> remainingEntityInfos = new ArrayList<EntityInfo>( entityInfos.length );
for ( EntityInfo entityInfo : entityInfos ) {
if ( ObjectLoaderHelper.areDocIdAndEntityIdIdentical( entityInfo, session ) ) {
EntityKey entityKey = new EntityKey( entityInfo.getId(), persister, session.getEntityMode() );
final boolean isInitialized = persistenceContext.containsEntity( entityKey );
if ( !isInitialized ) {
remainingEntityInfos.add( entityInfo );
}
}
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();
log.trace( "Initialized {} objects out of {} in the persistence context", maxResults - remainingSize, maxResults );
if (remainingSize > 0) {
delegate.initializeObjects(
remainingEntityInfos.toArray( new EntityInfo[remainingSize] ),
criteria,
entityType,
searchFactoryImplementor,
timeoutManager,
session
);
}
}
}