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ActiveMQ example source code file (SessionPool.java)
The ActiveMQ SessionPool.java source code/** * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.apache.activemq.pool; import javax.jms.JMSException; import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQSession; import org.apache.activemq.AlreadyClosedException; import org.apache.activemq.util.JMSExceptionSupport; import org.apache.commons.pool.ObjectPool; import org.apache.commons.pool.PoolableObjectFactory; /** * Represents the session pool for a given JMS connection. * * */ public class SessionPool implements PoolableObjectFactory { private ConnectionPool connectionPool; private SessionKey key; private ObjectPool sessionPool; public SessionPool(ConnectionPool connectionPool, SessionKey key, ObjectPool sessionPool) { this.connectionPool = connectionPool; this.key = key; this.sessionPool = sessionPool; sessionPool.setFactory(this); } public void close() throws Exception { if (sessionPool != null) { sessionPool.close(); } sessionPool = null; } public PooledSession borrowSession() throws JMSException { try { Object object = getSessionPool().borrowObject(); return (PooledSession)object; } catch (JMSException e) { throw e; } catch (Exception e) { throw JMSExceptionSupport.create(e); } } public void returnSession(PooledSession session) throws JMSException { // lets check if we are already closed getConnection(); try { getSessionPool().returnObject(session); } catch (Exception e) { throw JMSExceptionSupport.create("Failed to return session to pool: " + e, e); } } public void invalidateSession(PooledSession session) throws JMSException { try { getSessionPool().invalidateObject(session); } catch (Exception e) { throw JMSExceptionSupport.create("Failed to invalidate session: " + e, e); } } // PoolableObjectFactory methods // ------------------------------------------------------------------------- public Object makeObject() throws Exception { return new PooledSession(createSession(), this); } public void destroyObject(Object o) throws Exception { PooledSession session = (PooledSession)o; session.getInternalSession().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 ObjectPool getSessionPool() throws AlreadyClosedException { if (sessionPool == null) { throw new AlreadyClosedException(); } return sessionPool; } protected ActiveMQConnection getConnection() throws JMSException { return connectionPool.getConnection(); } protected ActiveMQSession createSession() throws JMSException { return (ActiveMQSession)getConnection().createSession(key.isTransacted(), key.getAckMode()); } } Other ActiveMQ examples (source code examples)Here is a short list of links related to this ActiveMQ SessionPool.java source code file: |
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