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/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* 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
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.search.aggregations.metrics;
import org.HdrHistogram.DoubleHistogram;
import org.opensearch.search.DocValueFormat;
import org.opensearch.search.aggregations.Aggregator;
import org.opensearch.search.aggregations.InternalAggregation;
import org.opensearch.search.aggregations.support.ValuesSource;
import org.opensearch.search.internal.SearchContext;
import java.io.IOException;
import java.util.Map;
class HDRPercentileRanksAggregator extends AbstractHDRPercentilesAggregator {
HDRPercentileRanksAggregator(
String name,
ValuesSource valuesSource,
SearchContext 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));
}
}
}