Examples with CountAggregator io.druid.query.aggregation.CountAggregator used on opensource projects

Example 11 with CountAggregator

use of io.druid.query.aggregation.CountAggregator in project druid by druid-io.

the class DoubleLeastPostAggregatorTest method testCompute.

@Test
public void testCompute() {
    final String aggName = "rows";
    DoubleLeastPostAggregator leastPostAggregator;
    CountAggregator agg = new CountAggregator();
    agg.aggregate();
    agg.aggregate();
    agg.aggregate();
    Map<String, Object> metricValues = new HashMap<String, Object>();
    metricValues.put(aggName, agg.get());
    List<PostAggregator> postAggregatorList = Lists.newArrayList(new ConstantPostAggregator("roku", 6D), new FieldAccessPostAggregator("rows", aggName));
    leastPostAggregator = new DoubleLeastPostAggregator("least", postAggregatorList);
    Assert.assertEquals(3.0, leastPostAggregator.compute(metricValues));
}

Example 12 with CountAggregator

use of io.druid.query.aggregation.CountAggregator in project druid by druid-io.

the class FieldAccessPostAggregatorTest method testCompute.

@Test
public void testCompute() {
    final String aggName = "rows";
    FieldAccessPostAggregator fieldAccessPostAggregator;
    fieldAccessPostAggregator = new FieldAccessPostAggregator("To be, or not to be, that is the question:", "rows");
    CountAggregator agg = new CountAggregator();
    Map<String, Object> metricValues = new HashMap<String, Object>();
    metricValues.put(aggName, agg.get());
    Assert.assertEquals(new Long(0L), fieldAccessPostAggregator.compute(metricValues));
    agg.aggregate();
    agg.aggregate();
    agg.aggregate();
    metricValues.put(aggName, agg.get());
    Assert.assertEquals(new Long(3L), fieldAccessPostAggregator.compute(metricValues));
}

Example 13 with CountAggregator

use of io.druid.query.aggregation.CountAggregator in project druid by druid-io.

the class ArithmeticPostAggregatorTest method testCompute.

@Test
public void testCompute() {
    final String aggName = "rows";
    ArithmeticPostAggregator arithmeticPostAggregator;
    ExpressionPostAggregator expressionPostAggregator;
    CountAggregator agg = new CountAggregator();
    agg.aggregate();
    agg.aggregate();
    agg.aggregate();
    Map<String, Object> metricValues = new HashMap<String, Object>();
    metricValues.put(aggName, agg.get());
    List<PostAggregator> postAggregatorList = Lists.newArrayList(new ConstantPostAggregator("roku", 6D), new FieldAccessPostAggregator("rows", "rows"));
    for (PostAggregator postAggregator : postAggregatorList) {
        metricValues.put(postAggregator.getName(), postAggregator.compute(metricValues));
    }
    arithmeticPostAggregator = new ArithmeticPostAggregator("add", "+", postAggregatorList);
    expressionPostAggregator = new ExpressionPostAggregator("add", "roku + rows");
    Assert.assertEquals(9.0, arithmeticPostAggregator.compute(metricValues));
    Assert.assertEquals(9.0, expressionPostAggregator.compute(metricValues));
    arithmeticPostAggregator = new ArithmeticPostAggregator("subtract", "-", postAggregatorList);
    expressionPostAggregator = new ExpressionPostAggregator("add", "roku - rows");
    Assert.assertEquals(3.0, arithmeticPostAggregator.compute(metricValues));
    Assert.assertEquals(3.0, expressionPostAggregator.compute(metricValues));
    arithmeticPostAggregator = new ArithmeticPostAggregator("multiply", "*", postAggregatorList);
    expressionPostAggregator = new ExpressionPostAggregator("add", "roku * rows");
    Assert.assertEquals(18.0, arithmeticPostAggregator.compute(metricValues));
    Assert.assertEquals(18.0, expressionPostAggregator.compute(metricValues));
    arithmeticPostAggregator = new ArithmeticPostAggregator("divide", "/", postAggregatorList);
    expressionPostAggregator = new ExpressionPostAggregator("add", "roku / rows");
    Assert.assertEquals(2.0, arithmeticPostAggregator.compute(metricValues));
    Assert.assertEquals(2.0, expressionPostAggregator.compute(metricValues));
}