001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.reef.tests.fail.task; 020 021import org.apache.reef.task.Task; 022import org.apache.reef.task.events.SuspendEvent; 023import org.apache.reef.tests.library.exceptions.SimulatedTaskFailure; 024import org.apache.reef.wake.EventHandler; 025 026import javax.inject.Inject; 027import java.util.logging.Level; 028import java.util.logging.Logger; 029 030/** 031 * A basic task that just fails when we invoke it. 032 */ 033public final class FailTaskSuspend implements Task, EventHandler<SuspendEvent> { 034 035 private static final Logger LOG = Logger.getLogger(FailTaskSuspend.class.getName()); 036 037 private transient boolean isRunning = true; 038 039 @Inject 040 public FailTaskSuspend() { 041 LOG.info("FailTaskSuspend created."); 042 } 043 044 @Override 045 public byte[] call(final byte[] memento) { 046 synchronized (this) { 047 LOG.info("FailTaskSuspend.call() invoked. Waiting for suspend request."); 048 while (this.isRunning) { 049 try { 050 this.wait(); 051 } catch (final InterruptedException ex) { 052 LOG.log(Level.WARNING, "wait() interrupted.", ex); 053 } 054 } 055 } 056 return new byte[0]; 057 } 058 059 @Override 060 public void onNext(final SuspendEvent event) throws SimulatedTaskFailure { 061 // synchronized (this) { 062 // this.isRunning = false; 063 // this.notify(); 064 // } 065 final SimulatedTaskFailure ex = new SimulatedTaskFailure("FailTaskSuspend.send() invoked."); 066 LOG.log(Level.FINE, "FailTaskSuspend.send() invoked: {0}", ex); 067 throw ex; 068 } 069}