[120] | 1 | /** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
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| 3 | * or more contributor license agreements. See the NOTICE file |
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| 4 | * distributed with this work for additional information |
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| 5 | * regarding copyright ownership. The ASF licenses this file |
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| 6 | * to you under the Apache License, Version 2.0 (the |
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| 7 | * "License"); you may not use this file except in compliance |
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| 8 | * with the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | |
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| 19 | package org.apache.hadoop.mapreduce; |
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| 20 | |
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| 21 | import java.io.IOException; |
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| 22 | |
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| 23 | import org.apache.hadoop.conf.Configuration; |
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| 24 | import org.apache.hadoop.util.Progressable; |
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| 25 | |
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| 26 | /** |
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| 27 | * The context for task attempts. |
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| 28 | */ |
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| 29 | public class TaskAttemptContext extends JobContext implements Progressable { |
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| 30 | private final TaskAttemptID taskId; |
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| 31 | private String status = ""; |
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| 32 | |
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| 33 | public TaskAttemptContext(Configuration conf, |
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| 34 | TaskAttemptID taskId) { |
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| 35 | super(conf, taskId.getJobID()); |
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| 36 | this.taskId = taskId; |
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| 37 | } |
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| 38 | |
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| 39 | /** |
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| 40 | * Get the unique name for this task attempt. |
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| 41 | */ |
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| 42 | public TaskAttemptID getTaskAttemptID() { |
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| 43 | return taskId; |
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| 44 | } |
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| 45 | |
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| 46 | /** |
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| 47 | * Set the current status of the task to the given string. |
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| 48 | */ |
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| 49 | public void setStatus(String msg) throws IOException { |
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| 50 | status = msg; |
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| 51 | } |
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| 52 | |
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| 53 | /** |
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| 54 | * Get the last set status message. |
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| 55 | * @return the current status message |
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| 56 | */ |
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| 57 | public String getStatus() { |
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| 58 | return status; |
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| 59 | } |
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| 60 | |
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| 61 | /** |
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| 62 | * Report progress. The subtypes actually do work in this method. |
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| 63 | */ |
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| 64 | public void progress() { |
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| 65 | } |
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| 66 | } |
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