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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.bucket.composite;
import org.elasticsearch.common.Rounding;
import org.elasticsearch.common.util.BigArrays;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.bucket.histogram.SizedBucketAggregator;
/**
* A {@link SingleDimensionValuesSource} for date histogram values.
*/
public class DateHistogramValuesSource extends LongValuesSource implements SizedBucketAggregator {
private final RoundingValuesSource preparedRounding;
DateHistogramValuesSource(
BigArrays bigArrays,
MappedFieldType fieldType,
RoundingValuesSource roundingValuesSource,
DocValueFormat format,
boolean missingBucket,
MissingOrder missingOrder,
int size,
int reverseMul
) {
super(
bigArrays,
fieldType,
roundingValuesSource::longValues,
roundingValuesSource::round,
format,
missingBucket,
missingOrder,
size,
reverseMul
);
this.preparedRounding = roundingValuesSource;
}
@Override
public double bucketSize(long bucket, Rounding.DateTimeUnit unitSize) {
if (unitSize != null) {
Long value = toComparable((int) bucket);
assert value != null : "unexpected null value in composite agg bucket [" + (int) bucket + "]";
return preparedRounding.roundingSize(value, unitSize);
} else {
return 1.0;
}
}
@Override
public double bucketSize(Rounding.DateTimeUnit unitSize) {
if (unitSize != null) {
return preparedRounding.roundingSize(unitSize);
} else {
return 1.0;
}
}
}