| /* |
| * 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 com.ibm.wsspi.uow.UOWAction; |
| |
| import java.lang.reflect.Method; |
| |
| /** |
| * WASRegistryManagedRuntime provides WebSphere specific extensions to |
| * {@link RegistryManagedRuntime}. Currently these extensions consist of using |
| * the WebSphere UOWManager interface to submit non transactional work. |
| */ |
| public class WASRegistryManagedRuntime extends RegistryManagedRuntime { |
| |
| // value taken from com.ibm.websphere.uow.UOWSynchronizationRegistry |
| private static final int WEBSPHERE_UOW_TYPE_LOCAL_TRANSACTION = 0; |
| |
| private final Method getUOWManager; |
| private final Method runUnderUOW; |
| |
| public WASRegistryManagedRuntime() { |
| try { |
| Class classUOWManagerFactory = Class.forName("com.ibm.wsspi.uow.UOWManagerFactory"); |
| getUOWManager = classUOWManagerFactory.getMethod("getUOWManager"); |
| |
| Class classUOWManager = Class.forName("com.ibm.wsspi.uow.UOWManager"); |
| runUnderUOW = classUOWManager.getMethod("runUnderUOW", new Class[]{int.class, boolean.class, UOWAction.class}); |
| } |
| catch (Exception e) { |
| throw new RuntimeException("Problem while creating WASManagedRuntime", e); |
| } |
| } |
| |
| /** |
| * <P> |
| * RegistryManagedRuntime cannot suspend transactions, but WebSphere |
| * provides an interface to submit work outside of the current tran. |
| * </P> |
| */ |
| @Override |
| public void doNonTransactionalWork(Runnable runnable) |
| throws RuntimeException, UnsupportedOperationException { |
| try { |
| Object uowManager = getUOWManager.invoke(null); |
| |
| runUnderUOW.invoke(uowManager, WEBSPHERE_UOW_TYPE_LOCAL_TRANSACTION, false, new DelegatingUOWAction(runnable)); |
| |
| } |
| catch(Exception e ) { |
| RuntimeException re = new RuntimeException(e.getMessage(), e); |
| throw re; |
| } |
| } |
| |
| |
| /** |
| * Delegate for the WebSphere proprietary UOWAction interface. Enables a |
| * {@link Runnable} to be passed in to the WebSphere UOWManager. |
| */ |
| class DelegatingUOWAction implements UOWAction { |
| Runnable _del; |
| |
| public DelegatingUOWAction(Runnable delegate) { |
| _del = delegate; |
| } |
| |
| @Override |
| public void run() throws Exception { |
| _del.run(); |
| } |
| } |
| } |