Package org.apache.hadoop.io

Examples of org.apache.hadoop.io.IntWritable

51
52
53
54
55
56
57
58
59
60
61
    driver = MapReduceDriver.newMapReduceDriver(mapper, reducer);
    mapDriver = MapDriver.newMapDriver(mapper);
    reduceDriver = ReduceDriver.newReduceDriver(reducer);
   
    expectedOutput = new ArrayList<Pair<Text, IntWritable>>();
    expectedOutput.add(new Pair<Text, IntWritable>(new Text("Bye"), new IntWritable(ONE)));
    expectedOutput.add(new Pair<Text, IntWritable>(new Text("Goodbye"), new IntWritable(ONE)));
    expectedOutput.add(new Pair<Text, IntWritable>(new Text("Hadoop"), new IntWritable(TWO)));
    expectedOutput.add(new Pair<Text, IntWritable>(new Text("Hello"), new IntWritable(TWO)));
    expectedOutput.add(new Pair<Text, IntWritable>(new Text("World"), new IntWritable(TWO)));
  }
View Full Code Here
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
    final List<Pair<LongWritable, Text>> inputs = new ArrayList<Pair<LongWritable, Text>>();
    inputs.add(new Pair<LongWritable, Text>(new LongWritable(21), new Text(FILE01)));
    inputs.add(new Pair<LongWritable, Text>(new LongWritable(48), new Text(FILE02)));

    final List<Pair<Text, IntWritable>> outputs = new ArrayList<Pair<Text, IntWritable>>();
    outputs.add(new Pair<Text, IntWritable>(new Text("Hello"), new IntWritable(ONE)));
    outputs.add(new Pair<Text, IntWritable>(new Text("World"), new IntWritable(ONE)));
    outputs.add(new Pair<Text, IntWritable>(new Text("Bye"), new IntWritable(ONE)));
    outputs.add(new Pair<Text, IntWritable>(new Text("World"), new IntWritable(ONE)));
    outputs.add(new Pair<Text, IntWritable>(new Text("Hello"), new IntWritable(ONE)));
    outputs.add(new Pair<Text, IntWritable>(new Text("Hadoop"), new IntWritable(ONE)));
    outputs.add(new Pair<Text, IntWritable>(new Text("Goodbye"), new IntWritable(ONE)));
    outputs.add(new Pair<Text, IntWritable>(new Text("Hadoop"), new IntWritable(ONE)));

    mapDriver.withAll(inputs).withAllOutput(outputs).runTest(true);
  }
View Full Code Here
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
  }

  @Test
  public void TestReduceDriver() throws IOException {
    final List<IntWritable> input1 = new ArrayList<IntWritable>();
    input1.add(new IntWritable(ONE));
   
    final List<IntWritable> input2 = new ArrayList<IntWritable>();
    input2.add(new IntWritable(ONE));
    input2.add(new IntWritable(ONE));
   
    final List<Pair<Text, List<IntWritable>>> inputs = new ArrayList<Pair<Text, List<IntWritable>>>();
    inputs.add(new Pair<Text, List<IntWritable>>(new Text("Bye"), input1));
    inputs.add(new Pair<Text, List<IntWritable>>(new Text("Goodbye"), input1));
    inputs.add(new Pair<Text, List<IntWritable>>(new Text("Hadoop"), input2));
View Full Code Here
138
139
140
141
142
143
144
      for (IntWritable val : values) {
        sum += val.get();
      }

      context.write(key, new IntWritable(sum));
    }
View Full Code Here
53
54
55
56
57
58
59
   *          the Hadoop job Map context
   */
  @Override
  protected void cleanup(Context context) throws IOException,
      InterruptedException {
    context.write(KEY, new IntWritable(this.someState));
  }
View Full Code Here
466
467
468
469
470
471
472
473
474
        .newMapReduceDriver(new InverseMapper<IntWritable, Integer>(),
            new IntSumReducer<Integer>()).withConfiguration(conf);
    driver
        .setKeyGroupingComparator(org.apache.hadoop.mrunit.TestMapReduceDriver.INTEGER_COMPARATOR);
    driver.setKeyOrderComparator(new JavaSerializationComparator<Integer>());
    driver.withInput(new IntWritable(1), 2).withInput(new IntWritable(2), 3);
    driver.withOutput(2, new IntWritable(1)).withOutput(3, new IntWritable(2))
        .runTest();
  }
View Full Code Here
303
304
305
306
307
308
309
310
311
        new IdentityReducer<Integer, IntWritable>());
    driver.addMapReduce(new IdentityMapper<Integer, IntWritable>(),
        new IdentityReducer<Integer, IntWritable>());
    driver.withConfiguration(conf);

    driver.withInput(1, new IntWritable(2)).withInput(2, new IntWritable(3));
    driver.withOutput(1, new IntWritable(2)).withOutput(2, new IntWritable(3));
    driver.runTest();
  }
View Full Code Here
499
500
501
502
503
504
505
506
507
    conf.setStrings("io.serializations", conf.get("io.serializations"),
        "org.apache.hadoop.io.serializer.JavaSerialization");
    final MapDriver<Integer, IntWritable, Integer, IntWritable> driver = MapDriver
        .newMapDriver(new IdentityMapper<Integer, IntWritable>())
        .withConfiguration(conf);
    driver.setInput(1, new IntWritable(2));
    driver.addOutput(1, new IntWritable(2));
    driver.runTest();
  }
View Full Code Here
520
521
522
523
524
525
526
527
528
        .newMapReduceDriver(new IdentityMapper<Integer, IntWritable>(),
            new IdentityReducer<Integer, IntWritable>())
        .withConfiguration(conf);
    driver.withKeyOrderComparator(new JavaSerializationComparator<Integer>());
    driver.withKeyGroupingComparator(INTEGER_COMPARATOR);
    driver.withInput(1, new IntWritable(2)).withInput(2, new IntWritable(3));
    driver.withOutput(1, new IntWritable(2)).withOutput(2, new IntWritable(3));
    driver.runTest();
  }
View Full Code Here
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
    FileSystem fs = outputPath.getFileSystem(conf);
   
    Path[] outfiles = DFUtils.listOutputFiles(fs, outputPath);
   
    // import the InMemOutputs
    IntWritable key = new IntWritable();
    MapredOutput value = new MapredOutput();
   
    for (Path path : outfiles) {
      Reader reader = new Reader(fs, path, conf);
     
      try {
        while (reader.next(key, value)) {
          output.put(key.get(), value.clone());
        }
      } finally {
        reader.close();
      }
    }
View Full Code Here
TOP

Related Classes of org.apache.hadoop.io.IntWritable

  • bbejeck.mapred.aggregation.AverageTemperatureMapReduceTest
  • bbejeck.mapred.aggregation.TemperatureAveragingPair
  • bbejeck.mapred.coocurrance.PairsRelativeOccurrenceReducerTest
  • brickhouse.udf.collect.CollectMaxTest
  • co.nubetech.hiho.dedup.TestDedupJob
  • co.nubetech.hiho.merge.TestMergeJob
  • co.nubetech.hiho.similarity.ngram.TestScoreMapper
  • co.nubetech.hiho.similarity.ngram.TestScoreReducer
  • com.alimama.mdrill.index.IndexReducer
  • com.datasalt.pangool.utils.HadoopUtils
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.