1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.giraph.job; 20 21 import org.apache.giraph.conf.ImmutableClassesGiraphConfigurable; 22 import org.apache.giraph.conf.ImmutableClassesGiraphConfiguration; 23 import org.apache.hadoop.mapreduce.Job; 24 25 /** 26 * Default implementation of job observer that does nothing. 27 */ 28 public class DefaultJobObserver implements GiraphJobObserver, 29 ImmutableClassesGiraphConfigurable { 30 /** configuration object stored here */ 31 private ImmutableClassesGiraphConfiguration conf; 32 33 @Override 34 public void setConf(ImmutableClassesGiraphConfiguration configuration) { 35 this.conf = configuration; 36 } 37 38 @Override 39 public ImmutableClassesGiraphConfiguration getConf() { 40 return this.conf; 41 } 42 43 @Override 44 public void launchingJob(Job jobToSubmit) { 45 // do nothing 46 } 47 48 @Override 49 public void jobRunning(Job submittedJob) { 50 // do nothing 51 } 52 53 @Override 54 public void jobFinished(Job jobToSubmit, boolean passed) { 55 // do nothing 56 } 57 58 @Override 59 public void jobGotAllMappers(Job job) { 60 // do nothing 61 } 62 }