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

Example 61 with Aggregator

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

the class DoubleAnyAggregationTest method testDoubleAnyCombiningAggregator.

@Test
public void testDoubleAnyCombiningAggregator() {
    Aggregator agg = combiningAggFactory.factorize(colSelectorFactory);
    aggregate(agg);
    aggregate(agg);
    aggregate(agg);
    aggregate(agg);
    Double result = (Double) agg.get();
    Assert.assertEquals(objects[0], result, 0.0001);
    Assert.assertEquals(objects[0].longValue(), agg.getLong());
    Assert.assertEquals(objects[0], agg.getDouble(), 0.0001);
}

Example 62 with Aggregator

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

the class DoubleAnyAggregationTest method testDoubleAnyAggregator.

@Test
public void testDoubleAnyAggregator() {
    Aggregator agg = doubleAnyAggFactory.factorize(colSelectorFactory);
    aggregate(agg);
    aggregate(agg);
    aggregate(agg);
    aggregate(agg);
    Double result = (Double) agg.get();
    Assert.assertEquals((Double) doubles[0], result);
    Assert.assertEquals((long) doubles[0], agg.getLong());
    Assert.assertEquals(doubles[0], agg.getDouble(), 0.0001);
}

Example 63 with Aggregator

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

the class BaseFilterTest method selectCountUsingFilteredAggregator.

private long selectCountUsingFilteredAggregator(final DimFilter filter) {
    final Sequence<Cursor> cursors = makeCursorSequence(null);
    Sequence<Aggregator> aggSeq = Sequences.map(cursors, cursor -> {
        Aggregator agg = new FilteredAggregatorFactory(new CountAggregatorFactory("count"), maybeOptimize(filter)).factorize(cursor.getColumnSelectorFactory());
        for (; !cursor.isDone(); cursor.advance()) {
            agg.aggregate();
        }
        return agg;
    });
    return aggSeq.toList().get(0).getLong();
}