[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 | 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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