| /* |
| * 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.openjpa.ee; |
| |
| import java.lang.reflect.Method; |
| import javax.transaction.Transaction; |
| import javax.transaction.TransactionManager; |
| |
| /** |
| * {@link ManagedRuntime} implementation that directly accesses the |
| * transaction manager via WebLogic Server helper classes. |
| * |
| * @author Arunabh Hazarika, Patrick Linskey |
| */ |
| public class WLSManagedRuntime extends AbstractManagedRuntime |
| implements ManagedRuntime { |
| |
| private final Method _txHelperMeth; |
| private final Method _txManagerMeth; |
| |
| public WLSManagedRuntime() |
| throws ClassNotFoundException, NoSuchMethodException { |
| Class txHelper = Class.forName |
| ("weblogic.transaction.TransactionHelper"); |
| _txHelperMeth = txHelper.getMethod("getTransactionHelper", null); |
| _txManagerMeth = txHelper.getMethod("getTransactionManager", null); |
| } |
| |
| public TransactionManager getTransactionManager() |
| throws Exception { |
| // return TransactionHelper.getTransactionHelper (). |
| // getTransactionManager (); |
| Object o = _txHelperMeth.invoke(null, null); |
| return (TransactionManager) _txManagerMeth.invoke(o, null); |
| } |
| |
| public void setRollbackOnly(Throwable cause) |
| throws Exception { |
| Transaction transaction = getTransactionManager().getTransaction(); |
| try { |
| // try to use reflection to call the setRollbackOnly(Throwable) |
| // method in weblogic.transaction.Transaction |
| transaction.getClass(). |
| getMethod("setRollbackOnly", new Class[] { Throwable.class }). |
| invoke(transaction, new Object[] { cause }); |
| } catch (Throwable e) { |
| // some problem occurred: fall back to the traditional call |
| transaction.setRollbackOnly(); |
| } |
| } |
| |
| public Throwable getRollbackCause() |
| throws Exception { |
| Transaction transaction = getTransactionManager().getTransaction(); |
| try { |
| // try to use reflection to call the getRollbackReason() |
| // method in weblogic.transaction.Transaction |
| return (Throwable) transaction.getClass(). |
| getMethod("getRollbackReason", new Class[0]). |
| invoke(transaction, new Object[0]); |
| } catch (Throwable e) { |
| // some problem occurred: just return null |
| return null; |
| } |
| } |
| } |