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DefaultJobObserver xref
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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  }