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ActiveMQ example source code file (XaConnectionPool.java)
The ActiveMQ XaConnectionPool.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 javax.jms.Session; import javax.transaction.RollbackException; import javax.transaction.Status; import javax.transaction.SystemException; import javax.transaction.TransactionManager; import javax.transaction.xa.XAResource; import org.apache.activemq.ActiveMQConnection; import org.apache.commons.pool.ObjectPoolFactory; /** * An XA-aware connection pool. When a session is created and an xa transaction is active, * the session will automatically be enlisted in the current transaction. * * @author gnodet */ public class XaConnectionPool extends ConnectionPool { private TransactionManager transactionManager; public XaConnectionPool(ActiveMQConnection connection, ObjectPoolFactory poolFactory, TransactionManager transactionManager) { super(connection, poolFactory); this.transactionManager = transactionManager; } public Session createSession(boolean transacted, int ackMode) throws JMSException { try { boolean isXa = (transactionManager != null && transactionManager.getStatus() != Status.STATUS_NO_TRANSACTION); if (isXa) { transacted = true; ackMode = Session.SESSION_TRANSACTED; } PooledSession session = (PooledSession) super.createSession(transacted, ackMode); if (isXa) { session.setIgnoreClose(true); transactionManager.getTransaction().registerSynchronization(new Synchronization(session)); incrementReferenceCount(); transactionManager.getTransaction().enlistResource(createXaResource(session)); } return session; } catch (RollbackException e) { final JMSException jmsException = new JMSException("Rollback Exception"); jmsException.initCause(e); throw jmsException; } catch (SystemException e) { final JMSException jmsException = new JMSException("System Exception"); jmsException.initCause(e); throw jmsException; } } protected XAResource createXaResource(PooledSession session) throws JMSException { return session.getXAResource(); } protected class Synchronization implements javax.transaction.Synchronization { private final PooledSession session; private Synchronization(PooledSession session) { this.session = session; } public void beforeCompletion() { } public void afterCompletion(int status) { try { // This will return session to the pool. session.setIgnoreClose(false); session.close(); decrementReferenceCount(); } catch (JMSException e) { throw new RuntimeException(e); } } } } Other ActiveMQ examples (source code examples)Here is a short list of links related to this ActiveMQ XaConnectionPool.java source code file: |
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