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.lib; |
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19 | |
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20 | import java.io.IOException; |
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21 | import java.util.Map; |
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22 | |
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23 | import junit.framework.TestCase; |
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24 | |
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25 | import org.apache.hadoop.fs.Path; |
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26 | import org.apache.hadoop.mapred.InputFormat; |
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27 | import org.apache.hadoop.mapred.JobConf; |
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28 | import org.apache.hadoop.mapred.KeyValueTextInputFormat; |
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29 | import org.apache.hadoop.mapred.Mapper; |
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30 | import org.apache.hadoop.mapred.OutputCollector; |
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31 | import org.apache.hadoop.mapred.Reporter; |
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32 | import org.apache.hadoop.mapred.TextInputFormat; |
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33 | |
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34 | /** |
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35 | * @see TestDelegatingInputFormat |
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36 | */ |
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37 | public class TestMultipleInputs extends TestCase { |
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38 | |
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39 | public void testAddInputPathWithFormat() { |
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40 | final JobConf conf = new JobConf(); |
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41 | MultipleInputs.addInputPath(conf, new Path("/foo"), TextInputFormat.class); |
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42 | MultipleInputs.addInputPath(conf, new Path("/bar"), |
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43 | KeyValueTextInputFormat.class); |
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44 | final Map<Path, InputFormat> inputs = MultipleInputs |
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45 | .getInputFormatMap(conf); |
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46 | assertEquals(TextInputFormat.class, inputs.get(new Path("/foo")).getClass()); |
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47 | assertEquals(KeyValueTextInputFormat.class, inputs.get(new Path("/bar")) |
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48 | .getClass()); |
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49 | } |
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50 | |
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51 | public void testAddInputPathWithMapper() { |
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52 | final JobConf conf = new JobConf(); |
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53 | MultipleInputs.addInputPath(conf, new Path("/foo"), TextInputFormat.class, |
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54 | MapClass.class); |
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55 | MultipleInputs.addInputPath(conf, new Path("/bar"), |
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56 | KeyValueTextInputFormat.class, MapClass2.class); |
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57 | final Map<Path, InputFormat> inputs = MultipleInputs |
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58 | .getInputFormatMap(conf); |
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59 | final Map<Path, Class<? extends Mapper>> maps = MultipleInputs |
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60 | .getMapperTypeMap(conf); |
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61 | |
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62 | assertEquals(TextInputFormat.class, inputs.get(new Path("/foo")).getClass()); |
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63 | assertEquals(KeyValueTextInputFormat.class, inputs.get(new Path("/bar")) |
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64 | .getClass()); |
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65 | assertEquals(MapClass.class, maps.get(new Path("/foo"))); |
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66 | assertEquals(MapClass2.class, maps.get(new Path("/bar"))); |
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67 | } |
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68 | |
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69 | static class MapClass implements Mapper<String, String, String, String> { |
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70 | |
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71 | public void map(String key, String value, |
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72 | OutputCollector<String, String> output, Reporter reporter) |
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73 | throws IOException { |
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74 | } |
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75 | |
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76 | public void configure(JobConf job) { |
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77 | } |
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78 | |
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79 | public void close() throws IOException { |
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80 | } |
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81 | } |
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82 | |
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83 | static class MapClass2 extends MapClass { |
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84 | } |
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85 | } |
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