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.runtime.common.driver.defaults;
020
021import org.apache.reef.driver.context.ActiveContext;
022import org.apache.reef.driver.task.CompletedTask;
023import org.apache.reef.wake.EventHandler;
024
025import javax.inject.Inject;
026import java.util.logging.Level;
027import java.util.logging.Logger;
028
029/**
030 * Default event handler for CompletedTask: Log it and close the context.
031 */
032public final class DefaultTaskCompletionHandler implements EventHandler<CompletedTask> {
033
034  private static final Logger LOG = Logger.getLogger(DefaultTaskCompletionHandler.class.getName());
035
036  @Inject
037  public DefaultTaskCompletionHandler() {
038  }
039
040  @Override
041  public void onNext(final CompletedTask completedTask) {
042    final ActiveContext context = completedTask.getActiveContext();
043    LOG.log(Level.INFO, "Received CompletedTask: {0} :: CLOSING context: {1}",
044        new Object[]{completedTask, context});
045    context.close();
046  }
047}