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

Example 36 with BufferAggregator

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

the class DoubleAnyAggregationTest method testDoubleAnyCombiningBufferAggregator.

@Test
public void testDoubleAnyCombiningBufferAggregator() {
    BufferAggregator agg = combiningAggFactory.factorizeBuffered(colSelectorFactory);
    ByteBuffer buffer = ByteBuffer.wrap(new byte[doubleAnyAggFactory.getMaxIntermediateSizeWithNulls()]);
    agg.init(buffer, 0);
    aggregate(agg, buffer, 0);
    aggregate(agg, buffer, 0);
    aggregate(agg, buffer, 0);
    aggregate(agg, buffer, 0);
    Double result = (Double) agg.get(buffer, 0);
    Assert.assertEquals(objects[0], result, 0.0001);
    Assert.assertEquals(objects[0].longValue(), agg.getLong(buffer, 0));
    Assert.assertEquals(objects[0], agg.getDouble(buffer, 0), 0.0001);
}