/* $Id: MasterJGroupsBackendQueueProcessorFactory.java 19833 2010-06-28 12:31:04Z epbernard $
*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2009, 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.backend.impl.jgroups;
import java.util.List;
import java.util.Properties;
import org.jgroups.Receiver;
import org.hibernate.search.spi.WorkerBuildContext;
import org.hibernate.search.backend.LuceneWork;
import org.hibernate.search.backend.impl.lucene.LuceneBackendQueueProcessorFactory;
/**
* Backend factory used in JGroups clustering mode in master node.
* Wraps {@link LuceneBackendQueueProcessorFactory} with providing extra
* functionality to receive Lucene works from slave nodes.
*
* @author Lukasz Moren
* @see org.hibernate.search.backend.impl.lucene.LuceneBackendQueueProcessorFactory
* @see org.hibernate.search.backend.impl.jgroups.SlaveJGroupsBackendQueueProcessorFactory
*/
public class MasterJGroupsBackendQueueProcessorFactory extends JGroupsBackendQueueProcessorFactory {
private LuceneBackendQueueProcessorFactory luceneBackendQueueProcessorFactory;
private Receiver masterListener;
@Override
public void initialize(Properties props, WorkerBuildContext context) {
super.initialize( props, context );
initLuceneBackendQueueProcessorFactory( props, context );
registerMasterListener();
}
public Runnable getProcessor(List<LuceneWork> queue) {
return luceneBackendQueueProcessorFactory.getProcessor( queue );
}
private void registerMasterListener() {
//register JGroups receiver in master node to get Lucene docs from slave nodes
masterListener = new JGroupsMasterMessageListener( searchFactory );
channel.setReceiver( masterListener );
}
private void initLuceneBackendQueueProcessorFactory(Properties props, WorkerBuildContext context) {
luceneBackendQueueProcessorFactory = new LuceneBackendQueueProcessorFactory();
luceneBackendQueueProcessorFactory.initialize( props, context );
}
public Receiver getMasterListener() {
return masterListener;
}
@Override
public void close() {
super.close();
luceneBackendQueueProcessorFactory.close();
}
}