/*
* $Id: WebsphereTransactionManagerLookupFactory.java 20813 2010-12-21 11:37:48Z dirk.olmes $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.transaction.lookup;
import org.mule.api.MuleRuntimeException;
import org.mule.api.config.MuleConfiguration;
import org.mule.api.transaction.TransactionManagerFactory;
import org.mule.config.i18n.CoreMessages;
import org.mule.util.ClassUtils;
import java.lang.reflect.Method;
import javax.transaction.TransactionManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* The code borrowed from Spring's
* org.springframework.transaction.jta.WebSphereTransactionManagerFactoryBean. See
* the apache-2.0.license file in Mule's licenses folder for details.
*
* @see com.ibm.ws.Transaction.TransactionManagerFactory#getTransactionManager
* @see com.ibm.ejs.jts.jta.JTSXA#getTransactionManager
* @see com.ibm.ejs.jts.jta.TransactionManagerFactory#getTransactionManager
*/
public class WebsphereTransactionManagerLookupFactory implements TransactionManagerFactory
{
private static final String FACTORY_CLASS_5_1_AND_ABOVE = "com.ibm.ws.Transaction.TransactionManagerFactory";
private static final String FACTORY_CLASS_5_0 = "com.ibm.ejs.jts.jta.TransactionManagerFactory";
private static final String FACTORY_CLASS_4 = "com.ibm.ejs.jts.jta.JTSXA";
private final Log logger = LogFactory.getLog(getClass());
/**
* This constructor retrieves the WebSphere TransactionManager factory class, so
* we can get access to the JTA TransactionManager.
*/
public TransactionManager create(MuleConfiguration config)
{
Class<?> clazz;
TransactionManager transactionManager;
try
{
logger.debug("Trying WebSphere 5.1+: " + FACTORY_CLASS_5_1_AND_ABOVE);
clazz = ClassUtils.loadClass(FACTORY_CLASS_5_1_AND_ABOVE, this.getClass());
logger.info("Found WebSphere 5.1+: " + FACTORY_CLASS_5_1_AND_ABOVE);
}
catch (ClassNotFoundException ex)
{
logger.debug("Could not find WebSphere 5.1+ TransactionManager factory class", ex);
try
{
logger.debug("Trying WebSphere 5.0: " + FACTORY_CLASS_5_0);
clazz = ClassUtils.loadClass(FACTORY_CLASS_5_0, this.getClass());
logger.info("Found WebSphere 5.0: " + FACTORY_CLASS_5_0);
}
catch (ClassNotFoundException ex2)
{
logger.debug("Could not find WebSphere 5.0 TransactionManager factory class", ex2);
try
{
logger.debug("Trying WebSphere 4: " + FACTORY_CLASS_4);
clazz = ClassUtils.loadClass(FACTORY_CLASS_4, this.getClass());
logger.info("Found WebSphere 4: " + FACTORY_CLASS_4);
}
catch (ClassNotFoundException ex3)
{
logger.debug("Could not find WebSphere 4 TransactionManager factory class", ex3);
throw new MuleRuntimeException(
CoreMessages.createStaticMessage("Couldn't find any WebSphere TransactionManager factory class, "
+ "neither for WebSphere version 5.1 nor 5.0 nor 4"),
ex);
}
}
}
try
{
Method method = clazz.getMethod("getTransactionManager", (Class[])null);
transactionManager = (TransactionManager) method.invoke(null, (Object[])null);
}
catch (Exception ex)
{
throw new MuleRuntimeException(
CoreMessages.createStaticMessage("Found WebSphere TransactionManager factory class ["
+ clazz.getName()
+ "], but couldn't invoke its static 'getTransactionManager' method"),
ex);
}
return transactionManager;
}
}