| /* |
| * 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.ode.il; |
| |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Timer; |
| import java.util.TimerTask; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| |
| import javax.transaction.Status; |
| import javax.transaction.Synchronization; |
| import javax.transaction.SystemException; |
| import javax.transaction.TransactionManager; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.ode.bpel.iapi.ContextException; |
| import org.apache.ode.bpel.iapi.Scheduler; |
| |
| /** |
| * @author Matthieu Riou <mriou at apache dot org> |
| */ |
| public class MockScheduler implements Scheduler { |
| |
| private static final Log __log = LogFactory.getLog(MockScheduler.class); |
| |
| private JobProcessor _processor; |
| private ExecutorService _executorSvc = Executors.newCachedThreadPool(); |
| private ThreadLocal<Boolean> _transacted = new ThreadLocal<Boolean>(); |
| private TransactionManager _txm; |
| private Timer _timer = new Timer(false); |
| |
| public MockScheduler() { |
| _transacted.set(false); |
| } |
| |
| public MockScheduler(TransactionManager txm) { |
| _txm = txm; |
| _transacted.set(false); |
| } |
| |
| ThreadLocal<List<Synchronizer>> _synchros = new ThreadLocal<List<Scheduler.Synchronizer>>() { |
| @Override |
| protected List<Synchronizer> initialValue() { |
| return new ArrayList<Synchronizer>(); |
| } |
| }; |
| |
| public String schedulePersistedJob(final Map<String, Object> detail, final Date date) throws ContextException { |
| if (date != null) { |
| registerSynchronizer(new Synchronizer() { |
| public void afterCompletion(boolean success) { |
| if (!success) return; |
| _timer.schedule(new TimerTask() { |
| public void run() { |
| try { |
| execIsolatedTransaction(new Callable() { |
| public Object call() throws Exception { |
| JobInfo ji = new JobInfo("volatileJob", detail, 0); |
| doExecute(ji); |
| return null; |
| } |
| }); |
| } catch (Exception e) { |
| throw new ContextException("Failure when scheduling a new volatile job.", e); |
| } |
| } |
| }, date); |
| } |
| public void beforeCompletion() { } |
| }); |
| return null; |
| } else { |
| return scheduleVolatileJob(true, detail); |
| } |
| } |
| |
| public String scheduleVolatileJob(final boolean transacted, final Map<String, Object> detail) throws ContextException { |
| registerSynchronizer(new Synchronizer() { |
| public void afterCompletion(boolean success) { |
| if (!success) return; |
| try { |
| if (transacted) { |
| execIsolatedTransaction(new Callable() { |
| public Object call() throws Exception { |
| JobInfo ji = new JobInfo("volatileJob", detail, 0); |
| doExecute(ji); |
| return null; |
| } |
| }); |
| } else { |
| JobInfo ji = new JobInfo("volatileJob", detail, 0); |
| doExecute(ji); |
| } |
| } catch (Exception e) { |
| throw new ContextException("Failure when starting a new volatile job.", e); |
| } |
| } |
| public void beforeCompletion() { } |
| }); |
| return null; |
| } |
| |
| public void cancelJob(String arg0) throws ContextException { |
| |
| } |
| |
| public <T> T execTransaction(Callable<T> transaction) throws Exception, ContextException { |
| begin(); |
| try { |
| T retval = transaction.call(); |
| commit(); |
| return retval; |
| } catch (Throwable t) { |
| __log.error("Caught an exception during transaction", t); |
| rollback(); |
| throw new ContextException("Error in tx", t); |
| } |
| } |
| |
| public void setRollbackOnly() throws Exception { |
| if (_txm != null) _txm.setRollbackOnly(); |
| } |
| |
| public <T> Future<T> execIsolatedTransaction(final Callable<T> transaction) throws Exception, ContextException { |
| return _executorSvc.submit(new Callable<T>() { |
| public T call() throws Exception { |
| return execTransaction(transaction); |
| } |
| }); |
| } |
| |
| public boolean isTransacted() { |
| if (_txm != null) { |
| try { |
| return _txm.getTransaction() != null; |
| } catch (SystemException e) { |
| __log.error("Exception in mock scheduler isTransacted.", e); |
| throw new RuntimeException(e); |
| } |
| } |
| else return _transacted.get(); |
| } |
| |
| public void start() { |
| } |
| |
| public void stop() { |
| } |
| |
| public void shutdown() { |
| } |
| |
| public void registerSynchronizer(final Synchronizer synch) throws ContextException { |
| if (_txm != null) { |
| try { |
| _txm.getTransaction().registerSynchronization(new Synchronization() { |
| public void beforeCompletion() { |
| synch.beforeCompletion(); |
| } |
| public void afterCompletion(int status) { |
| synch.afterCompletion(status == Status.STATUS_COMMITTED); |
| } |
| }); |
| } catch (Exception e) { |
| __log.error("Exception in mock scheduler sync registration.", e); |
| throw new RuntimeException(e); |
| } |
| } else { |
| _synchros.get().add(synch); |
| } |
| } |
| |
| public void begin() { |
| if (_txm != null) { |
| try { |
| _txm.begin(); |
| } catch (Exception e) { |
| __log.error("Exception in mock scheduler begin.", e); |
| throw new RuntimeException(e); |
| } |
| } else { |
| _synchros.get().clear(); |
| } |
| _transacted.set(Boolean.TRUE); |
| } |
| |
| public void commit() { |
| if (_txm != null) { |
| try { |
| _txm.commit(); |
| } catch (Exception e) { |
| __log.error("Exception in mock scheduler commit.", e); |
| throw new RuntimeException(e); |
| } |
| } else { |
| for (Synchronizer s : _synchros.get()) |
| try { |
| s.beforeCompletion(); |
| } catch (Throwable t) { |
| } |
| for (Synchronizer s : _synchros.get()) |
| try { |
| s.afterCompletion(true); |
| } catch (Throwable t) { |
| } |
| |
| _synchros.get().clear(); |
| } |
| _transacted.set(Boolean.FALSE); |
| } |
| |
| public void rollback() { |
| if (_txm != null) { |
| try { |
| _txm.rollback(); |
| } catch (Exception e) { |
| __log.error("Exception in mock scheduler rollback.", e); |
| throw new RuntimeException(e); |
| } |
| } else { |
| for (Synchronizer s : _synchros.get()) |
| try { |
| s.beforeCompletion(); |
| } catch (Throwable t) { |
| } |
| for (Synchronizer s : _synchros.get()) |
| try { |
| s.afterCompletion(false); |
| } catch (Throwable t) { |
| } |
| _synchros.get().clear(); |
| } |
| _transacted.set(Boolean.FALSE); |
| } |
| |
| private void doExecute(JobInfo ji) { |
| JobProcessor processor = _processor; |
| if (processor == null) |
| throw new RuntimeException("No processor."); |
| try { |
| processor.onScheduledJob(ji); |
| } catch (Exception jpe) { |
| throw new RuntimeException("Scheduled transaction failed unexpectedly: transaction will not be retried!.", jpe); |
| } |
| } |
| |
| public void setJobProcessor(JobProcessor processor) throws ContextException { |
| _processor = processor; |
| } |
| |
| public void setExecutorSvc(ExecutorService executorSvc) { |
| _executorSvc = executorSvc; |
| } |
| } |