org.elasticsearch.search.aggregations.pipeline.AvgBucketPipelineAggregator Maven / Gradle / Ivy
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Elasticsearch subproject :server
/*
* 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.pipeline;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.InternalAggregation;
import org.elasticsearch.search.aggregations.pipeline.BucketHelpers.GapPolicy;
import java.util.Map;
public class AvgBucketPipelineAggregator extends BucketMetricsPipelineAggregator {
private int count = 0;
private double sum = 0;
AvgBucketPipelineAggregator(
String name,
String[] bucketsPaths,
GapPolicy gapPolicy,
DocValueFormat format,
Map metadata
) {
super(name, bucketsPaths, gapPolicy, format, metadata);
}
@Override
protected void preCollection() {
count = 0;
sum = 0;
}
@Override
protected void collectBucketValue(String bucketKey, Double bucketValue) {
count++;
sum += bucketValue;
}
@Override
protected InternalAggregation buildAggregation(Map metadata) {
double avgValue = count == 0 ? Double.NaN : (sum / count);
return new InternalSimpleValue(name(), avgValue, format, metadata);
}
}