Package org.apache.hadoop.mapreduce

Examples of org.apache.hadoop.mapreduce.JobContext

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    }

    @Override
    public JobContext createJobContext(Configuration conf,
                                       JobID jobId) {
      return new JobContext(conf, jobId);
    }
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  @SuppressWarnings({ "rawtypes", "unchecked" })
  public void testLastInputSplitSingleSplit() throws Exception {
    FileInputFormat fif = new FileInputFormatForTest(100l * 1024 * 1024,
        128l * 1024 * 1024);
    Configuration conf = new Configuration();
    JobContext jobContext = mock(JobContext.class);
    when(jobContext.getConfiguration()).thenReturn(conf);
    List<InputSplit> splits = fif.getSplits(jobContext);
    assertEquals(1, splits.size());
    for (int i = 0; i < splits.size(); i++) {
      InputSplit split = splits.get(i);
      assertEquals(("host" + i), split.getLocations()[0]);
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          InetAddress ip = InetAddress.getLocalHost();
          if (ip != null) {
            job.setJobSubmitHostAddress(ip.getHostAddress());
            job.setJobSubmitHostName(ip.getHostName());
          }
          JobContext context = new JobContext(jobCopy, jobId);

          jobCopy = (JobConf)context.getConfiguration();

          // Check the output specification
          if (reduces == 0 ? jobCopy.getUseNewMapper() :
            jobCopy.getUseNewReducer()) {
            org.apache.hadoop.mapreduce.OutputFormat<?,?> output =
              ReflectionUtils.newInstance(context.getOutputFormatClass(),
                  jobCopy);
            output.checkOutputSpecs(context);
          } else {
            jobCopy.getOutputFormat().checkOutputSpecs(fs, jobCopy);
          }
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   * @throws IOException
   *           Signals that an I/O exception has occurred.
   */
  @Test
  public void testMaxVersions() throws IOException {
    JobContext job = new JobContext(new Configuration(), new JobID());
    AccumuloInputFormat.setMaxVersions(job.getConfiguration(), 1);
    int version = AccumuloInputFormat.getMaxVersions(job.getConfiguration());
    assertEquals(1, version);
  }
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   * @throws IOException
   *           Signals that an I/O exception has occurred.
   */
  @Test(expected = IOException.class)
  public void testMaxVersionsLessThan1() throws IOException {
    JobContext job = new JobContext(new Configuration(), new JobID());
    AccumuloInputFormat.setMaxVersions(job.getConfiguration(), 0);
  }
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  /**
   * Test no max version configured.
   */
  @Test
  public void testNoMaxVersion() {
    JobContext job = new JobContext(new Configuration(), new JobID());
    assertEquals(-1, AccumuloInputFormat.getMaxVersions(job.getConfiguration()));
  }
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   * Check that the iterator configuration is getting stored in the Job conf correctly.
   */
  @SuppressWarnings("deprecation")
  @Test
  public void testSetIterator() {
    JobContext job = new JobContext(new Configuration(), new JobID());
   
    AccumuloInputFormat.setIterator(job, 1, "org.apache.accumulo.core.iterators.WholeRowIterator", "WholeRow");
    Configuration conf = job.getConfiguration();
    String iterators = conf.get("AccumuloInputFormat.iterators");
    assertEquals("1:org.apache.accumulo.core.iterators.WholeRowIterator:WholeRow", iterators);
  }
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    assertEquals("1:org.apache.accumulo.core.iterators.WholeRowIterator:WholeRow", iterators);
  }
 
  @Test
  public void testAddIterator() {
    JobContext job = new JobContext(new Configuration(), new JobID());
   
    AccumuloInputFormat.addIterator(job.getConfiguration(), new IteratorSetting(1, "WholeRow", WholeRowIterator.class));
    AccumuloInputFormat.addIterator(job.getConfiguration(), new IteratorSetting(2, "Versions", "org.apache.accumulo.core.iterators.VersioningIterator"));
    IteratorSetting iter = new IteratorSetting(3, "Count", "org.apache.accumulo.core.iterators.CountingIterator");
    iter.addOption("v1", "1");
    iter.addOption("junk", "\0omg:!\\xyzzy");
    AccumuloInputFormat.addIterator(job.getConfiguration(), iter);
   
    List<AccumuloIterator> list = AccumuloInputFormat.getIterators(job.getConfiguration());
   
    // Check the list size
    assertTrue(list.size() == 3);
   
    // Walk the list and make sure our settings are correct
    AccumuloIterator setting = list.get(0);
    assertEquals(1, setting.getPriority());
    assertEquals("org.apache.accumulo.core.iterators.user.WholeRowIterator", setting.getIteratorClass());
    assertEquals("WholeRow", setting.getIteratorName());
   
    setting = list.get(1);
    assertEquals(2, setting.getPriority());
    assertEquals("org.apache.accumulo.core.iterators.VersioningIterator", setting.getIteratorClass());
    assertEquals("Versions", setting.getIteratorName());
   
    setting = list.get(2);
    assertEquals(3, setting.getPriority());
    assertEquals("org.apache.accumulo.core.iterators.CountingIterator", setting.getIteratorClass());
    assertEquals("Count", setting.getIteratorName());
   
    List<AccumuloIteratorOption> iteratorOptions = AccumuloInputFormat.getIteratorOptions(job.getConfiguration());
    assertEquals(2, iteratorOptions.size());
    assertEquals("Count", iteratorOptions.get(0).getIteratorName());
    assertEquals("Count", iteratorOptions.get(1).getIteratorName());
    assertEquals("v1", iteratorOptions.get(0).getKey());
    assertEquals("1", iteratorOptions.get(0).getValue());
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   * Test getting iterator settings for multiple iterators set
   */
  @SuppressWarnings("deprecation")
  @Test
  public void testGetIteratorSettings() {
    JobContext job = new JobContext(new Configuration(), new JobID());
   
    AccumuloInputFormat.setIterator(job, 1, "org.apache.accumulo.core.iterators.WholeRowIterator", "WholeRow");
    AccumuloInputFormat.setIterator(job, 2, "org.apache.accumulo.core.iterators.VersioningIterator", "Versions");
    AccumuloInputFormat.setIterator(job, 3, "org.apache.accumulo.core.iterators.CountingIterator", "Count");
   
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   * Check that the iterator options are getting stored in the Job conf correctly.
   */
  @SuppressWarnings("deprecation")
  @Test
  public void testSetIteratorOption() {
    JobContext job = new JobContext(new Configuration(), new JobID());
    AccumuloInputFormat.setIteratorOption(job, "someIterator", "aKey", "aValue");
   
    Configuration conf = job.getConfiguration();
    String options = conf.get("AccumuloInputFormat.iterators.options");
    assertEquals(new String("someIterator:aKey:aValue"), options);
  }
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