Examples with PostAggregator org.apache.druid.query.aggregation.PostAggregator used on opensource projects

Example 36 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class DoublesSketchToCDFPostAggregatorTest method emptySketch.

@Test
public void emptySketch() {
    final TestDoubleColumnSelectorImpl selector = new TestDoubleColumnSelectorImpl(null);
    final Aggregator agg = new DoublesSketchBuildAggregator(selector, 8);
    final Map<String, Object> fields = new HashMap<>();
    fields.put("sketch", agg.get());
    final PostAggregator postAgg = new DoublesSketchToCDFPostAggregator("cdf", new FieldAccessPostAggregator("field", "sketch"), new double[] { 4 });
    final double[] histogram = (double[]) postAgg.compute(fields);
    Assert.assertNotNull(histogram);
    Assert.assertEquals(2, histogram.length);
    Assert.assertTrue(Double.isNaN(histogram[0]));
    Assert.assertTrue(Double.isNaN(histogram[1]));
}

Example 37 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class DoublesSketchToQuantilePostAggregatorTest method testSerde.

@Test
public void testSerde() throws JsonProcessingException {
    final PostAggregator there = new DoublesSketchToQuantilePostAggregator("post", new FieldAccessPostAggregator("field1", "sketch"), 0.5);
    DefaultObjectMapper mapper = new DefaultObjectMapper();
    DoublesSketchToQuantilePostAggregator andBackAgain = mapper.readValue(mapper.writeValueAsString(there), DoublesSketchToQuantilePostAggregator.class);
    Assert.assertEquals(there, andBackAgain);
    Assert.assertArrayEquals(there.getCacheKey(), andBackAgain.getCacheKey());
}

Example 38 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class HllSketchToEstimatePostAggregatorTest method testToString.

@Test
public void testToString() {
    final PostAggregator postAgg = new HllSketchToEstimatePostAggregator("post", new FieldAccessPostAggregator("field1", "sketch"), true);
    Assert.assertEquals("HllSketchToEstimatePostAggregator{name='post', field=FieldAccessPostAggregator{name='field1', fieldName='sketch'}, round=true}", postAgg.toString());
}

Example 39 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class HllSketchToEstimatePostAggregatorTest method testSerde.

@Test
public void testSerde() throws JsonProcessingException {
    final PostAggregator there = new HllSketchToEstimatePostAggregator("post", new FieldAccessPostAggregator("field1", "sketch"), true);
    DefaultObjectMapper mapper = new DefaultObjectMapper();
    HllSketchToEstimatePostAggregator andBackAgain = mapper.readValue(mapper.writeValueAsString(there), HllSketchToEstimatePostAggregator.class);
    Assert.assertEquals(there, andBackAgain);
    Assert.assertArrayEquals(there.getCacheKey(), andBackAgain.getCacheKey());
}

Example 40 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class SketchSetPostAggregatorTest method testSerde.

@Test
public void testSerde() throws JsonProcessingException {
    List<PostAggregator> fields = Arrays.asList(new FieldAccessPostAggregator("field1", "sketch"), new FieldAccessPostAggregator("field2", "sketch"));
    final PostAggregator union = new SketchSetPostAggregator("summary", "UNION", null, fields);
    final PostAggregator intersect = new SketchSetPostAggregator("summary", "INTERSECT", null, fields);
    final PostAggregator not = new SketchSetPostAggregator("summary", "NOT", null, fields);
    List<PostAggregator> serdeTests = Arrays.asList(union, intersect, not);
    for (PostAggregator there : serdeTests) {
        DefaultObjectMapper mapper = new DefaultObjectMapper();
        SketchSetPostAggregator andBackAgain = mapper.readValue(mapper.writeValueAsString(there), SketchSetPostAggregator.class);
        Assert.assertEquals(there, andBackAgain);
        Assert.assertArrayEquals(there.getCacheKey(), andBackAgain.getCacheKey());
    }
}