/*
* 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.jms.pool;
import java.io.IOException;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.XAConnection;
import javax.jms.XAConnectionFactory;
import javax.jms.XASession;
import javax.transaction.SystemException;
import javax.transaction.TransactionManager;
import javax.transaction.xa.XAResource;
import org.apache.geronimo.transaction.manager.NamedXAResourceFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.jms.pool.GenericResourceManager" init-method="recoverResource">
* <property name="transactionManager" ref="transactionManager" />
* <property name="connectionFactory" ref="activemqConnectionFactory" />
* <property name="resourceName" value="activemq.broker" />
* </bean>
* </pre>
*/
public class GenericResourceManager {
private static final Logger LOGGER = LoggerFactory.getLogger(GenericResourceManager.class);
private String resourceName;
private String userName;
private String password;
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 getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
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(GenericResourceManager rm) {
return rm.getConnectionFactory() instanceof XAConnectionFactory &&
rm.getTransactionManager() instanceof RecoverableTransactionManager &&
rm.getResourceName() != null && !"".equals(rm.getResourceName());
}
public static boolean recover(final GenericResourceManager rm) throws IOException {
if (isRecoverable(rm)) {
final XAConnectionFactory connFactory = (XAConnectionFactory) rm.getConnectionFactory();
RecoverableTransactionManager rtxManager = (RecoverableTransactionManager) rm.getTransactionManager();
rtxManager.registerNamedXAResourceFactory(new NamedXAResourceFactory() {
@Override
public String getName() {
return rm.getResourceName();
}
@Override
public NamedXAResource getNamedXAResource() throws SystemException {
try {
final XAConnection xaConnection = connFactory.createXAConnection(rm.getUserName(), rm.getPassword());
final XASession session = xaConnection.createXASession();
xaConnection.start();
LOGGER.debug("new namedXAResource's connection: " + xaConnection);
return new ConnectionAndWrapperNamedXAResource(session.getXAResource(), getName(), xaConnection);
} catch (Exception e) {
SystemException se = new SystemException("Failed to create ConnectionAndWrapperNamedXAResource, " + e.getLocalizedMessage());
se.initCause(e);
LOGGER.error(se.getLocalizedMessage(), se);
throw se;
}
}
@Override
public void returnNamedXAResource(NamedXAResource namedXaResource) {
if (namedXaResource instanceof ConnectionAndWrapperNamedXAResource) {
try {
LOGGER.debug("closing returned namedXAResource's connection: " + ((ConnectionAndWrapperNamedXAResource)namedXaResource).connection);
((ConnectionAndWrapperNamedXAResource)namedXaResource).connection.close();
} catch (Exception ignored) {
LOGGER.debug("failed to close returned namedXAResource: " + namedXaResource, ignored);
}
}
}
});
return true;
} else {
return false;
}
}
}
public static class ConnectionAndWrapperNamedXAResource extends WrapperNamedXAResource {
final Connection connection;
public ConnectionAndWrapperNamedXAResource(XAResource xaResource, String name, Connection connection) {
super(xaResource, name);
this.connection = connection;
}
}
}