| /* |
| * 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.batchee.tools.services.thread; |
| |
| import org.apache.batchee.container.util.BatchWorkUnit; |
| |
| import javax.annotation.Resource; |
| import javax.ejb.Asynchronous; |
| import javax.ejb.Lock; |
| import javax.ejb.LockType; |
| import javax.ejb.Singleton; |
| import javax.ejb.TransactionManagement; |
| import javax.ejb.TransactionManagementType; |
| import javax.transaction.UserTransaction; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * Small helper class to allow new threads being created via the |
| * {@link org.apache.batchee.tools.services.thread.AsyncEjbBatchThreadPoolService}. |
| * |
| * @see org.apache.batchee.tools.services.thread.AsyncEjbBatchThreadPoolService |
| */ |
| @Singleton |
| @Lock(LockType.READ) |
| @TransactionManagement(TransactionManagementType.BEAN) |
| public class ThreadExecutorEjb { |
| |
| /** |
| * Used for the TransactionService |
| */ |
| @Resource |
| private UserTransaction ut; |
| |
| private Set<BatchWorkUnit> runningBatchWorkUnits = Collections.synchronizedSet(new HashSet<BatchWorkUnit>()); |
| |
| |
| private static ThreadLocal<UserTransaction> userTransactions = new ThreadLocal<UserTransaction>(); |
| |
| @Asynchronous |
| public void executeTask(Runnable work, Object config) { |
| try { |
| userTransactions.set(ut); |
| if (work instanceof BatchWorkUnit) { |
| runningBatchWorkUnits.add((BatchWorkUnit) work); |
| } |
| |
| work.run(); |
| } finally { |
| if (work instanceof BatchWorkUnit) { |
| runningBatchWorkUnits.remove(work); |
| } |
| userTransactions.remove(); |
| } |
| } |
| |
| public Set<BatchWorkUnit> getRunningBatchWorkUnits() { |
| return runningBatchWorkUnits; |
| } |
| |
| public static UserTransaction getUserTransaction() { |
| return userTransactions.get(); |
| } |
| } |