/*******************************************************************************
* Copyright (c) 1998, 2009 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.transaction.was;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import javax.transaction.TransactionManager;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import org.eclipse.persistence.internal.security.PrivilegedClassForName;
import org.eclipse.persistence.internal.security.PrivilegedGetMethod;
import org.eclipse.persistence.internal.security.PrivilegedMethodInvoker;
import org.eclipse.persistence.transaction.JTATransactionController;
/**
* <p>
* <b>Purpose</b>: TransactionController implementation for WebSphere
* <p>
* <b>Description</b>: Implements the required behavior for controlling transactions
* in WebSphere
* <p>
* @see org.eclipse.persistence.transaction.JTATransactionController
*/
public class WebSphereTransactionController extends JTATransactionController {
// Class and method to execute to obtain the TransactionManager
protected final static String TX_MANAGER_FACTORY_CLASS = "com.ibm.ws.Transaction.TransactionManagerFactory";
protected final static String TX_MANAGER_FACTORY_METHOD = "getTransactionManager";
public WebSphereTransactionController() {
super();
}
/**
* INTERNAL:
* Obtain and return the JTA TransactionManager on this platform.
* This will be called once when the controller is initialized.
*/
protected TransactionManager acquireTransactionManager() throws Exception {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try{
Class clazz = (Class) AccessController.doPrivileged(new PrivilegedClassForName(TX_MANAGER_FACTORY_CLASS));
Method method = AccessController.doPrivileged(new PrivilegedGetMethod(clazz, TX_MANAGER_FACTORY_METHOD, null, false));
return (TransactionManager) AccessController.doPrivileged(new PrivilegedMethodInvoker(method, null, null));
}catch (PrivilegedActionException ex){
if (ex.getCause() instanceof ClassNotFoundException){
throw (ClassNotFoundException)ex.getCause();
}
if (ex.getCause() instanceof NoSuchMethodException){
throw (NoSuchMethodException)ex.getCause();
}
if (ex.getCause() instanceof IllegalAccessException){
throw (IllegalAccessException)ex.getCause();
}
if (ex.getCause() instanceof InvocationTargetException){
throw (InvocationTargetException)ex.getCause();
}
throw (RuntimeException) ex.getCause();
}
}else{
Class clazz = PrivilegedAccessHelper.getClassForName(TX_MANAGER_FACTORY_CLASS);
Method method = PrivilegedAccessHelper.getMethod(clazz, TX_MANAGER_FACTORY_METHOD, null, false);
return (TransactionManager)PrivilegedAccessHelper.invokeMethod(method, null, null);
}
}
}