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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.search.aggregations.metrics;
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.support.AggregationContext;
import org.elasticsearch.search.aggregations.support.ValuesSource;
import java.io.IOException;
import java.util.Map;
class HDRPercentileRanksAggregator extends AbstractHDRPercentilesAggregator {
HDRPercentileRanksAggregator(
String name,
ValuesSource valuesSource,
AggregationContext context,
Aggregator parent,
double[] percents,
int numberOfSignificantValueDigits,
boolean keyed,
DocValueFormat format,
Map metadata
) throws IOException {
super(name, valuesSource, context, parent, percents, numberOfSignificantValueDigits, keyed, format, metadata);
}
@Override
public InternalAggregation buildAggregation(long owningBucketOrdinal) {
DoubleHistogram state = getState(owningBucketOrdinal);
if (state == null) {
return buildEmptyAggregation();
} else {
return new InternalHDRPercentileRanks(name, keys, state, keyed, format, metadata());
}
}
@Override
public InternalAggregation buildEmptyAggregation() {
DoubleHistogram state;
state = new DoubleHistogram(numberOfSignificantValueDigits);
state.setAutoResize(true);
return new InternalHDRPercentileRanks(name, keys, state, keyed, format, metadata());
}
@Override
public double metric(String name, long bucketOrd) {
DoubleHistogram state = getState(bucketOrd);
if (state == null) {
return Double.NaN;
} else {
return InternalHDRPercentileRanks.percentileRank(state, Double.valueOf(name));
}
}
}