/**
*
* Copyright 2004 Protique Ltd
*
* 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.activemq.pool;
import org.apache.commons.pool.ObjectPool;
import org.apache.commons.pool.PoolableObjectFactory;
import org.apache.commons.pool.impl.GenericObjectPool;
import org.activemq.ActiveMQSession;
import org.activemq.ActiveMQConnection;
import org.activemq.AlreadyClosedException;
import org.activemq.util.JMSExceptionHelper;
import javax.jms.JMSException;
/**
* Represents the session pool for a given JMS connection.
*
* @version $Revision: 1.1 $
*/
public class SessionPool implements PoolableObjectFactory {
private ActiveMQConnection connection;
private SessionKey key;
private ObjectPool sessionPool;
public SessionPool(ActiveMQConnection connection, SessionKey key) {
this(connection, key, new GenericObjectPool());
}
public SessionPool(ActiveMQConnection connection, SessionKey key, ObjectPool sessionPool) {
this.connection = connection;
this.key = key;
this.sessionPool = sessionPool;
sessionPool.setFactory(this);
}
public PooledSession borrowSession() throws JMSException {
try {
Object object = sessionPool.borrowObject();
return (PooledSession) object;
}
catch (JMSException e) {
throw e;
}
catch (Exception e) {
throw JMSExceptionHelper.newJMSException(e);
}
}
// PoolableObjectFactory methods
//-------------------------------------------------------------------------
public Object makeObject() throws Exception {
return new PooledSession(createSession(), sessionPool);
}
public void destroyObject(Object o) throws Exception {
PooledSession session = (PooledSession) o;
session.getSession().close();
}
public boolean validateObject(Object o) {
return true;
}
public void activateObject(Object o) throws Exception {
}
public void passivateObject(Object o) throws Exception {
}
// Implemention methods
//-------------------------------------------------------------------------
protected ActiveMQConnection getConnection() throws JMSException {
if (connection == null) {
throw new AlreadyClosedException();
}
return connection;
}
protected ActiveMQSession createSession() throws JMSException {
return (ActiveMQSession) getConnection().createSession(key.isTransacted(), key.getAckMode());
}
}