org.elasticsearch.search.aggregations.metrics.ParsedWeightedAvg Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
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.metrics;
import org.elasticsearch.xcontent.ObjectParser;
import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.XContentParser;
import java.io.IOException;
public class ParsedWeightedAvg extends ParsedSingleValueNumericMetricsAggregation implements WeightedAvg {
@Override
public double getValue() {
return value();
}
@Override
public String getType() {
return WeightedAvgAggregationBuilder.NAME;
}
@Override
protected XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
// InternalWeightedAvg renders value only if the avg normalizer (count) is not 0.
// We parse back `null` as Double.POSITIVE_INFINITY so we check for that value here to get the same xContent output
boolean hasValue = value != Double.POSITIVE_INFINITY;
builder.field(CommonFields.VALUE.getPreferredName(), hasValue ? value : null);
if (hasValue && valueAsString != null) {
builder.field(CommonFields.VALUE_AS_STRING.getPreferredName(), valueAsString);
}
return builder;
}
private static final ObjectParser PARSER = new ObjectParser<>(
ParsedWeightedAvg.class.getSimpleName(),
true,
ParsedWeightedAvg::new
);
static {
declareSingleValueFields(PARSER, Double.POSITIVE_INFINITY);
}
public static ParsedWeightedAvg fromXContent(XContentParser parser, final String name) {
ParsedWeightedAvg avg = PARSER.apply(parser, null);
avg.setName(name);
return avg;
}
}