/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2011, Red Hat, Inc. and/or its affiliates or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat, Inc.
*
* 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, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY 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
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.search.hcore.impl;
import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
import org.hibernate.cfg.Configuration;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.event.service.spi.DuplicationStrategy;
import org.hibernate.event.service.spi.EventListenerRegistry;
import org.hibernate.event.spi.EventType;
import org.hibernate.integrator.spi.Integrator;
import org.hibernate.internal.util.config.ConfigurationHelper;
import org.hibernate.metamodel.source.MetadataImplementor;
import org.hibernate.search.event.impl.FullTextIndexEventListener;
import org.hibernate.search.util.logging.impl.Log;
import org.hibernate.search.util.logging.impl.LoggerFactory;
import org.hibernate.service.spi.SessionFactoryServiceRegistry;
/**
* Integrates Hibernate Search into Hibernate Core by registering its needed listeners
*
* @author Emmanuel Bernard
* @author Hardy Ferentschik
* @author Steve Ebersole
*/
public class HibernateSearchIntegrator implements Integrator {
private static final Log log = LoggerFactory.make();
public static final String AUTO_REGISTER = "hibernate.search.autoregister_listeners";
@Override
public void integrate(
Configuration configuration,
SessionFactoryImplementor sessionFactory,
SessionFactoryServiceRegistry serviceRegistry) {
if ( !hibernateSearchNeedsToBeEnabled( configuration ) ) {
return;
}
FullTextIndexEventListener fullTextIndexEventListener = new FullTextIndexEventListener();
registerHibernateSearchEventListener( fullTextIndexEventListener, serviceRegistry );
ClassLoaderService hibernateClassLoaderService = serviceRegistry.getService( ClassLoaderService.class );
HibernateSearchSessionFactoryObserver observer = new HibernateSearchSessionFactoryObserver(
configuration,
fullTextIndexEventListener,
hibernateClassLoaderService
);
sessionFactory.addObserver( observer );
}
@Override
public void integrate(MetadataImplementor metadata, SessionFactoryImplementor sessionFactory, SessionFactoryServiceRegistry serviceRegistry) {
// todo - HSEARCH-856
}
@Override
public void disintegrate(SessionFactoryImplementor sessionFactory, SessionFactoryServiceRegistry serviceRegistry) {
}
private boolean hibernateSearchNeedsToBeEnabled(Configuration configuration) {
final boolean enableHibernateSearch = ConfigurationHelper.getBoolean(
AUTO_REGISTER,
configuration.getProperties(),
true
);
if ( !enableHibernateSearch ) {
log.debug( "Skipping Hibernate Search event listener auto registration" );
}
return enableHibernateSearch;
}
private void registerHibernateSearchEventListener(FullTextIndexEventListener eventListener, SessionFactoryServiceRegistry serviceRegistry) {
EventListenerRegistry listenerRegistry = serviceRegistry.getService( EventListenerRegistry.class );
listenerRegistry.addDuplicationStrategy( new DuplicationStrategyImpl( FullTextIndexEventListener.class ) );
listenerRegistry.appendListeners( EventType.POST_INSERT, eventListener );
listenerRegistry.appendListeners( EventType.POST_UPDATE, eventListener );
listenerRegistry.appendListeners( EventType.POST_DELETE, eventListener );
listenerRegistry.appendListeners( EventType.POST_COLLECTION_RECREATE, eventListener );
listenerRegistry.appendListeners( EventType.POST_COLLECTION_REMOVE, eventListener );
listenerRegistry.appendListeners( EventType.POST_COLLECTION_UPDATE, eventListener );
listenerRegistry.appendListeners( EventType.FLUSH, eventListener );
}
public static class DuplicationStrategyImpl implements DuplicationStrategy {
private final Class checkClass;
public DuplicationStrategyImpl(Class checkClass) {
this.checkClass = checkClass;
}
@Override
public boolean areMatch(Object listener, Object original) {
// not isAssignableFrom since the user could subclass
return checkClass == original.getClass() && checkClass == listener.getClass();
}
@Override
public Action getAction() {
return Action.KEEP_ORIGINAL;
}
}
}