Package io.druid.query.aggregation

Examples of io.druid.query.aggregation.CountAggregator

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{
  @Test
  public void testCompute()
  {
    ArithmeticPostAggregator arithmeticPostAggregator;
    CountAggregator agg = new CountAggregator("rows");
    agg.aggregate();
    agg.aggregate();
    agg.aggregate();
    Map<String, Object> metricValues = new HashMap<String, Object>();
    metricValues.put(agg.getName(), agg.get());

    List<PostAggregator> postAggregatorList =
        Lists.newArrayList(
            new ConstantPostAggregator(
                "roku", 6, null
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  @Test
  public void testComparator()
  {
    ArithmeticPostAggregator arithmeticPostAggregator;
    CountAggregator agg = new CountAggregator("rows");
    Map<String, Object> metricValues = new HashMap<String, Object>();
    metricValues.put(agg.getName(), agg.get());

    List<PostAggregator> postAggregatorList =
        Lists.newArrayList(
            new ConstantPostAggregator(
                "roku", 6, null
            ),
            new FieldAccessPostAggregator(
                "rows", "rows"
            )
        );

    arithmeticPostAggregator = new ArithmeticPostAggregator("add", "+", postAggregatorList);
    Comparator comp = arithmeticPostAggregator.getComparator();
    Object before = arithmeticPostAggregator.compute(metricValues);
    agg.aggregate();
    agg.aggregate();
    agg.aggregate();
    metricValues.put(agg.getName(), agg.get());
    Object after = arithmeticPostAggregator.compute(metricValues);

    Assert.assertEquals(-1, comp.compare(before, after));
    Assert.assertEquals(0, comp.compare(before, before));
    Assert.assertEquals(0, comp.compare(after, after));
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  public void testCompute()
  {
    FieldAccessPostAggregator fieldAccessPostAggregator;

    fieldAccessPostAggregator = new FieldAccessPostAggregator("To be, or not to be, that is the question:", "rows");
    CountAggregator agg = new CountAggregator("rows");
    Map<String, Object> metricValues = new HashMap<String, Object>();
    metricValues.put(agg.getName(), agg.get());
    Assert.assertEquals(new Long(0L), fieldAccessPostAggregator.compute(metricValues));

    agg.aggregate();
    agg.aggregate();
    agg.aggregate();
    metricValues.put(agg.getName(), agg.get());
    Assert.assertEquals(new Long(3L), fieldAccessPostAggregator.compute(metricValues));
  }
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    );

    TimeseriesResultBuilder builder = new TimeseriesResultBuilder(
        new DateTime("2012-01-01T00:00:00Z")
    );
    CountAggregator rows = new CountAggregator("rows");
    rows.aggregate();
    builder.addMetric(rows);
    final Result<TimeseriesResultValue> value = builder.build();

    final SpecificSegmentQueryRunner queryRunner = new SpecificSegmentQueryRunner(
        new QueryRunner()
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Related Classes of io.druid.query.aggregation.CountAggregator

  • io.druid.query.aggregation.post.ArithmeticPostAggregatorTest
  • io.druid.query.aggregation.post.FieldAccessPostAggregatorTest
  • io.druid.query.spec.SpecificSegmentQueryRunnerTest
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