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.hadoop.mapreduce; |
---|
20 | |
---|
21 | import java.io.IOException; |
---|
22 | |
---|
23 | import org.apache.hadoop.conf.Configuration; |
---|
24 | import org.apache.hadoop.util.Progressable; |
---|
25 | |
---|
26 | /** |
---|
27 | * The context for task attempts. |
---|
28 | */ |
---|
29 | public class TaskAttemptContext extends JobContext implements Progressable { |
---|
30 | private final TaskAttemptID taskId; |
---|
31 | private String status = ""; |
---|
32 | |
---|
33 | public TaskAttemptContext(Configuration conf, |
---|
34 | TaskAttemptID taskId) { |
---|
35 | super(conf, taskId.getJobID()); |
---|
36 | this.taskId = taskId; |
---|
37 | } |
---|
38 | |
---|
39 | /** |
---|
40 | * Get the unique name for this task attempt. |
---|
41 | */ |
---|
42 | public TaskAttemptID getTaskAttemptID() { |
---|
43 | return taskId; |
---|
44 | } |
---|
45 | |
---|
46 | /** |
---|
47 | * Set the current status of the task to the given string. |
---|
48 | */ |
---|
49 | public void setStatus(String msg) throws IOException { |
---|
50 | status = msg; |
---|
51 | } |
---|
52 | |
---|
53 | /** |
---|
54 | * Get the last set status message. |
---|
55 | * @return the current status message |
---|
56 | */ |
---|
57 | public String getStatus() { |
---|
58 | return status; |
---|
59 | } |
---|
60 | |
---|
61 | /** |
---|
62 | * Report progress. The subtypes actually do work in this method. |
---|
63 | */ |
---|
64 | public void progress() { |
---|
65 | } |
---|
66 | } |
---|