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 | package org.apache.hadoop.mapred; |
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19 | |
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20 | |
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21 | import java.io.IOException; |
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22 | import java.io.PrintWriter; |
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23 | import java.util.ArrayList; |
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24 | import java.util.Map; |
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25 | |
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26 | import org.apache.hadoop.fs.FileSystem; |
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27 | import org.apache.hadoop.fs.Path; |
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28 | import org.apache.hadoop.mapred.JobHistory.*; |
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29 | |
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30 | import junit.framework.TestCase; |
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31 | |
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32 | public class TestJobHistoryParsing extends TestCase { |
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33 | ArrayList<PrintWriter> historyWriter = new ArrayList<PrintWriter>(); |
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34 | |
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35 | /** |
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36 | * Listener for a test history log file, it populates JobHistory.JobInfo |
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37 | * object with data from log file. |
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38 | */ |
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39 | static class TestListener implements Listener { |
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40 | JobInfo job; |
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41 | |
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42 | TestListener(JobInfo job) { |
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43 | this.job = job; |
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44 | } |
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45 | // JobHistory.Listener implementation |
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46 | public void handle(RecordTypes recType, |
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47 | Map<JobHistory.Keys, String> values) |
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48 | throws IOException { |
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49 | if (recType == JobHistory.RecordTypes.Job) { |
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50 | job.handle(values); |
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51 | } |
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52 | } |
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53 | } |
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54 | |
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55 | public void testHistoryParsing() throws IOException { |
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56 | // open a test history file |
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57 | Path historyDir = new Path(System.getProperty("test.build.data", "."), |
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58 | "history"); |
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59 | FileSystem fs = FileSystem.getLocal(new JobConf()); |
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60 | if (!fs.mkdirs(historyDir)) { |
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61 | fail("Failed to create history directory"); |
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62 | } |
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63 | Path historyLog = new Path(historyDir, "testlog"); |
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64 | PrintWriter out = new PrintWriter(fs.create(historyLog)); |
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65 | historyWriter.add(out); |
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66 | // log keys and values into history |
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67 | String value1 = "Value has equal=to, \"quotes\" and spaces in it"; |
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68 | String value2 = "Value has \n new line \n and " + |
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69 | "dot followed by new line .\n in it "; |
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70 | String value3 = "Value has characters: " + |
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71 | "`1234567890-=qwertyuiop[]\\asdfghjkl;'zxcvbnm,./" + |
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72 | "~!@#$%^&*()_+QWERTYUIOP{}|ASDFGHJKL:\"'ZXCVBNM<>?" + |
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73 | "\t\b\n\f\"\n in it"; |
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74 | String value4 = "Value ends with escape\\"; |
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75 | String value5 = "Value ends with \\\" \\.\n"; |
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76 | |
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77 | // Log the history version |
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78 | JobHistory.MetaInfoManager.logMetaInfo(historyWriter); |
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79 | |
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80 | JobHistory.log(historyWriter, RecordTypes.Job, |
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81 | new JobHistory.Keys[] {Keys.JOBTRACKERID, |
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82 | Keys.TRACKER_NAME, |
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83 | Keys.JOBNAME, |
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84 | Keys.JOBCONF, |
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85 | Keys.USER}, |
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86 | new String[] {value1, value2, value3, value4, value5}); |
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87 | // close history file |
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88 | out.close(); |
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89 | historyWriter.remove(out); |
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90 | |
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91 | // parse history |
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92 | String jobId = "job_200809171136_0001"; // random jobid for tesing |
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93 | JobHistory.JobInfo job = new JobHistory.JobInfo(jobId); |
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94 | JobHistory.parseHistoryFromFS(historyLog.toString(), |
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95 | new TestListener(job), fs); |
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96 | // validate keys and values |
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97 | assertEquals(value1, job.get(Keys.JOBTRACKERID)); |
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98 | assertEquals(value2, job.get(Keys.TRACKER_NAME)); |
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99 | assertEquals(value3, job.get(Keys.JOBNAME)); |
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100 | assertEquals(value4, job.get(Keys.JOBCONF)); |
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101 | assertEquals(value5, job.get(Keys.USER)); |
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102 | } |
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103 | } |
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