/*
* 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 java.io.IOException;
import javax.jms.ConnectionFactory;
import javax.jms.Session;
import javax.jms.JMSException;
import javax.transaction.TransactionManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQSession;
import org.apache.activemq.util.IOExceptionSupport;
import org.apache.geronimo.transaction.manager.RecoverableTransactionManager;
import org.apache.geronimo.transaction.manager.NamedXAResource;
import org.apache.geronimo.transaction.manager.WrapperNamedXAResource;
/**
* This class allows wiring the ActiveMQ broker and the Geronimo transaction manager
* in a way that will allow the transaction manager to correctly recover XA transactions.
*
* For example, it can be used the following way:
* <pre>
* <bean id="activemqConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
* <property name="brokerURL" value="tcp://localhost:61616" />
* </bean>
*
* <bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactoryFactoryBean">
* <property name="maxConnections" value="8" />
* <property name="transactionManager" ref="transactionManager" />
* <property name="connectionFactory" ref="activemqConnectionFactory" />
* <property name="resourceName" value="activemq.broker" />
* </bean>
*
* <bean id="resourceManager" class="org.apache.activemq.pool.ActiveMQResourceManager" init-method="recoverResource">
* <property name="transactionManager" ref="transactionManager" />
* <property name="connectionFactory" ref="activemqConnectionFactory" />
* <property name="resourceName" value="activemq.broker" />
* </bean>
* </pre>
*/
public class ActiveMQResourceManager {
private static final Log LOGGER = LogFactory.getLog(ActiveMQResourceManager.class);
private String resourceName;
private TransactionManager transactionManager;
private ConnectionFactory connectionFactory;
public void recoverResource() {
try {
if (!Recovery.recover(this)) {
LOGGER.info("Resource manager is unrecoverable");
}
} catch (NoClassDefFoundError e) {
LOGGER.info("Resource manager is unrecoverable due to missing classes: " + e);
} catch (Throwable e) {
LOGGER.warn("Error while recovering resource manager", e);
}
}
public String getResourceName() {
return resourceName;
}
public void setResourceName(String resourceName) {
this.resourceName = resourceName;
}
public TransactionManager getTransactionManager() {
return transactionManager;
}
public void setTransactionManager(TransactionManager transactionManager) {
this.transactionManager = transactionManager;
}
public ConnectionFactory getConnectionFactory() {
return connectionFactory;
}
public void setConnectionFactory(ConnectionFactory connectionFactory) {
this.connectionFactory = connectionFactory;
}
/**
* This class will ensure the broker is properly recovered when wired with
* the Geronimo transaction manager.
*/
public static class Recovery {
public static boolean isRecoverable(ActiveMQResourceManager rm) {
return rm.getConnectionFactory() instanceof ActiveMQConnectionFactory &&
rm.getTransactionManager() instanceof RecoverableTransactionManager &&
rm.getResourceName() != null && !"".equals(rm.getResourceName());
}
public static boolean recover(ActiveMQResourceManager rm) throws IOException {
if (isRecoverable(rm)) {
try {
ActiveMQConnectionFactory connFactory = (ActiveMQConnectionFactory) rm.getConnectionFactory();
ActiveMQConnection activeConn = (ActiveMQConnection)connFactory.createConnection();
ActiveMQSession session = (ActiveMQSession)activeConn.createSession(true, Session.SESSION_TRANSACTED);
NamedXAResource namedXaResource = new WrapperNamedXAResource(session.getTransactionContext(), rm.getResourceName());
RecoverableTransactionManager rtxManager = (RecoverableTransactionManager) rm.getTransactionManager();
rtxManager.recoverResourceManager(namedXaResource);
return true;
} catch (JMSException e) {
throw IOExceptionSupport.create(e);
}
} else {
return false;
}
}
}
}