/*
* 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.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;
}
}
}