Source code

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.io.network.group.impl.driver;
020
021import org.apache.reef.driver.evaluator.FailedEvaluator;
022import org.apache.reef.wake.EventHandler;
023
024import java.util.logging.Logger;
025
026public class TopologyFailedEvaluatorHandler implements EventHandler<FailedEvaluator> {
027
028  private static final Logger LOG = Logger.getLogger(TopologyFailedEvaluatorHandler.class.getName());
029
030
031  private final CommunicationGroupDriverImpl communicationGroupDriverImpl;
032
033  public TopologyFailedEvaluatorHandler(final CommunicationGroupDriverImpl communicationGroupDriverImpl) {
034    this.communicationGroupDriverImpl = communicationGroupDriverImpl;
035  }
036
037  @Override
038  public void onNext(final FailedEvaluator failedEvaluator) {
039    final String failedEvaluatorId = failedEvaluator.getId();
040    LOG.entering("TopologyFailedEvaluatorHandler", "onNext", failedEvaluatorId);
041    if (failedEvaluator.getFailedTask().isPresent()) {
042      final String failedTaskId = failedEvaluator.getFailedTask().get().getId();
043      LOG.finest("Failed Evaluator contains a failed task: " + failedTaskId);
044      communicationGroupDriverImpl.failTask(failedTaskId);
045      communicationGroupDriverImpl.removeTask(failedTaskId);
046    }
047    LOG.exiting("TopologyFailedEvaluatorHandler", "onNext", failedEvaluatorId);
048  }
049
050}