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* the Apache License, Version 2.0 (the "License"); you may
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* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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package org.elasticsearch.search.aggregations.metrics.percentiles.hdr;
import org.HdrHistogram.DoubleHistogram;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.Aggregator;
import org.elasticsearch.search.aggregations.InternalAggregation;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import org.elasticsearch.search.aggregations.support.ValuesSource.Numeric;
import org.elasticsearch.search.internal.SearchContext;
import java.io.IOException;
import java.util.List;
import java.util.Map;
public class HDRPercentilesAggregator extends AbstractHDRPercentilesAggregator {
public HDRPercentilesAggregator(String name, Numeric valuesSource, SearchContext context, Aggregator parent, double[] percents,
int numberOfSignificantValueDigits, boolean keyed, DocValueFormat formatter,
List<PipelineAggregator> pipelineAggregators, Map<String, Object> metaData) throws IOException {
super(name, valuesSource, context, parent, percents, numberOfSignificantValueDigits, keyed, formatter,
pipelineAggregators, metaData);
}
@Override
public InternalAggregation buildAggregation(long owningBucketOrdinal) {
DoubleHistogram state = getState(owningBucketOrdinal);
if (state == null) {
return buildEmptyAggregation();
} else {
return new InternalHDRPercentiles(name, keys, state, keyed, format, pipelineAggregators(), metaData());
}
}
@Override
public double metric(String name, long bucketOrd) {
DoubleHistogram state = getState(bucketOrd);
if (state == null) {
return Double.NaN;
} else {
return state.getValueAtPercentile(Double.parseDouble(name));
}
}
@Override
public InternalAggregation buildEmptyAggregation() {
DoubleHistogram state;
state = new DoubleHistogram(numberOfSignificantValueDigits);
state.setAutoResize(true);
return new InternalHDRPercentiles(name, keys, state,
keyed,
format, pipelineAggregators(), metaData());
}
}