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.client;
020
021import org.apache.reef.annotations.audience.DriverSide;
022import org.apache.reef.proto.ReefServiceProtos;
023
024import javax.inject.Inject;
025import java.util.logging.Level;
026import java.util.logging.Logger;
027
028/**
029 * A handler for job status messages that just logs them.
030 */
031@DriverSide
032public class LoggingJobStatusHandler implements JobStatusHandler {
033
034  private static final Logger LOG = Logger.getLogger(LoggingJobStatusHandler.class.getName());
035
036  private ReefServiceProtos.JobStatusProto lastStatus = null;
037
038  @Inject
039  LoggingJobStatusHandler() {
040  }
041
042  @Override
043  public void onNext(final ReefServiceProtos.JobStatusProto jobStatusProto) {
044    this.lastStatus = jobStatusProto;
045    LOG.log(Level.INFO, "In-process JobStatus:\n{0}", jobStatusProto);
046  }
047
048  /**
049   * Return the last known status of the REEF job.
050   * Can return null if the job has not been launched yet.
051   * @return Last status of the REEF job.
052   */
053  @Override
054  public ReefServiceProtos.JobStatusProto getLastStatus() {
055    return this.lastStatus;
056  }
057}