/**
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**/
package org.jencks.pool;
import javax.jms.JMSException;
import javax.jms.XAConnection;
import javax.jms.XASession;
import org.apache.commons.pool.PoolableObjectFactory;
import org.apache.commons.pool.ObjectPool;
import org.apache.commons.pool.impl.GenericObjectPool;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class XASessionPool implements PoolableObjectFactory
{
private static final Log log = LogFactory.getLog(XASessionPool.class);
private XAConnection connection;
private ObjectPool sessionPool;
public XASessionPool(final XAConnection connection)
{
this(connection, new GenericObjectPool(null, -1));
}
public XASessionPool(final XAConnection connection,
final ObjectPool sessionPool)
{
this.connection = connection;
this.sessionPool = sessionPool;
sessionPool.setFactory(this);
}
public PooledSpringXASession borrowSession() throws JMSException
{
try {
if(log.isDebugEnabled()) log.debug("---->>>>> BORROWING JMS SESSION FROM POOL...");
Object object = sessionPool.borrowObject();
if(log.isDebugEnabled()) log.debug("---->>>>> BORROWED SESSION: " + object);
return (PooledSpringXASession) object;
}
catch (JMSException e) {
throw e;
}
catch (Exception e) {
final JMSException jmsException = new JMSException("Unhandled exception");
jmsException.initCause(e);
throw jmsException;
}
}
// PoolableObjectFactory methods
//-------------------------------------------------------------------------
public Object makeObject() throws Exception
{
if(log.isDebugEnabled()) log.debug("---->>>>> CREATING NEW SESSION TO SATISFY REQUEST!!");
return new PooledSpringXASession(createSession(), sessionPool);
}
public void destroyObject(Object o) throws Exception
{
if(log.isDebugEnabled()) log.debug("---->>>>> DESTROYING SESSION AND PERMANENTLY REMOVING FROM POOL: " + o);
PooledSpringXASession session = (PooledSpringXASession) o;
session.getActualSession().close();
}
public boolean validateObject(Object o)
{
return true;
}
public void activateObject(Object o) throws Exception
{
}
public void passivateObject(Object o) throws Exception
{
if(log.isDebugEnabled()) log.debug("---->>>>> SESSION HAS BEEN RETURNED TO POOL: " + o);
}
// Implemention methods
//-------------------------------------------------------------------------
protected XAConnection getConnection() throws JMSException
{
if (this.connection == null) {
throw new JMSException("Already closed");
}
return connection;
}
protected XASession createSession() throws JMSException
{
return getConnection().createXASession();
}
}