/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat Middleware LLC, and others 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.jboss.soa.bpel.clustering;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jboss.ha.framework.interfaces.HAPartition;
import org.jboss.soa.bpel.runtime.engine.ode.BPELEngineImpl;
import org.jboss.util.naming.NonSerializableFactory;
/**
* @author Jeff Yu
*
*/
public class JBossClusteringService implements ClusteringService{
private static final Log logger = LogFactory.getLog(JBossClusteringService.class);
private HAPartition haPartition;
private String bpelEngineName;
private ODEJobClusterListener listener;
private BPELEngineImpl engine;
public void start() {
engine = getBpelEngine();
listener = new ODEJobClusterListener(engine.getScheduler(), engine.getSchedulerDAOConnectionFactory(), engine.getTransactionManager());
this.haPartition.registerMembershipListener(listener);
logger.debug("Registered ODEJobCluster Listener.");
}
public String getMasterNodeId() {
if (!haPartition.getCurrentView().isEmpty()) {
String nodeId = haPartition.getCurrentView().elementAt(0).toString();
logger.debug("The master node id is: " + nodeId);
return nodeId;
}
throw new ClusteringException("There are no nodes available in this clustering environment");
}
public void stop() {
if (listener != null) {
this.haPartition.unregisterMembershipListener(listener);
logger.debug("Unregistered ODEJobCluster Listener.");
}
}
public HAPartition getHaPartition() {
return haPartition;
}
public void setHaPartition(HAPartition haPartition) {
this.haPartition = haPartition;
}
public String getBpelEngineName() {
return bpelEngineName;
}
public void setBpelEngineName(String bpelEngineName) {
this.bpelEngineName = bpelEngineName;
}
public BPELEngineImpl getBpelEngine() {
BPELEngineImpl engine = (BPELEngineImpl)NonSerializableFactory.lookup(this.bpelEngineName);
return engine;
}
}