| /* |
| * 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 javax.transaction.NotSupportedException; |
| import javax.transaction.SystemException; |
| import javax.transaction.Transaction; |
| import javax.transaction.TransactionManager; |
| |
| import org.apache.openjpa.lib.util.Localizer; |
| import org.apache.openjpa.util.GeneralException; |
| |
| /* |
| * AbstractManagedRuntime.java |
| * |
| * Created on August 2, 2007, 2:38 PM |
| * |
| */ |
| public abstract class AbstractManagedRuntime implements ManagedRuntime { |
| |
| private static Localizer _loc = |
| Localizer.forPackage(AbstractManagedRuntime.class); |
| /** |
| * Returns a transaction key that can be used to associate transactions |
| * and Brokers. |
| * The default implementation returns the Transaction associated |
| * with the current thread's transaction. |
| * @return the transaction key |
| */ |
| @Override |
| public Object getTransactionKey() throws Exception, SystemException { |
| return getTransactionManager().getTransaction(); |
| } |
| |
| /** |
| * <P> |
| * Do a unit of work which will execute outside of the current managed |
| * transaction. The default implementation suspends the transaction prior to |
| * execution, and resumes the transaction afterwards. |
| * </P> |
| * |
| * @param runnable |
| * The runnable wrapper for the work that will be done. The |
| * runnable object should be fully initialized with any state |
| * needed to execute. |
| * |
| * @throws NotSupportedException |
| * if the current transaction can not be obtained, or an error |
| * occurs when suspending or resuming the transaction. |
| */ |
| @Override |
| public void doNonTransactionalWork(Runnable runnable) throws |
| NotSupportedException { |
| TransactionManager tm = null; |
| Transaction transaction = null; |
| |
| try { |
| tm = getTransactionManager(); |
| } |
| catch(Exception e) { |
| NotSupportedException nse = |
| new NotSupportedException(e.getMessage()); |
| nse.initCause(e); |
| throw nse; |
| } |
| try { |
| transaction = tm.suspend(); |
| } catch (Exception e) { |
| NotSupportedException nse = new NotSupportedException( |
| _loc.get("exc-suspend-tran", e.getClass()).getMessage()); |
| nse.initCause(e); |
| throw nse; |
| } |
| |
| runnable.run(); |
| |
| try { |
| tm.resume(transaction); |
| } catch (Exception e) { |
| try { |
| transaction.setRollbackOnly(); |
| } |
| catch(SystemException se2) { |
| throw new GeneralException(se2); |
| } |
| NotSupportedException nse = |
| new NotSupportedException( |
| _loc.get("exc-resume-tran", e.getClass()).getMessage()); |
| nse.initCause(e); |
| throw nse; |
| } |
| |
| } |
| } |