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/*
* 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.
*/
package org.elasticsearch.search.aggregations.metrics.stats.extended;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.query.QueryParseContext;
import org.elasticsearch.search.aggregations.AggregationBuilder;
import org.elasticsearch.search.aggregations.AggregatorFactories.Builder;
import org.elasticsearch.search.aggregations.AggregatorFactory;
import org.elasticsearch.search.aggregations.support.ValueType;
import org.elasticsearch.search.aggregations.support.ValuesSource;
import org.elasticsearch.search.aggregations.support.ValuesSource.Numeric;
import org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder;
import org.elasticsearch.search.aggregations.support.ValuesSourceConfig;
import org.elasticsearch.search.aggregations.support.ValuesSourceParserHelper;
import org.elasticsearch.search.aggregations.support.ValuesSourceType;
import org.elasticsearch.search.internal.SearchContext;
import java.io.IOException;
import java.util.Objects;
public class ExtendedStatsAggregationBuilder
extends ValuesSourceAggregationBuilder.LeafOnly<ValuesSource.Numeric, ExtendedStatsAggregationBuilder> {
public static final String NAME = "extended_stats";
private static final ObjectParser<ExtendedStatsAggregationBuilder, QueryParseContext> PARSER;
static {
PARSER = new ObjectParser<>(ExtendedStatsAggregationBuilder.NAME);
ValuesSourceParserHelper.declareNumericFields(PARSER, true, true, false);
PARSER.declareDouble(ExtendedStatsAggregationBuilder::sigma, ExtendedStatsAggregator.SIGMA_FIELD);
}
public static AggregationBuilder parse(String aggregationName, QueryParseContext context) throws IOException {
return PARSER.parse(context.parser(), new ExtendedStatsAggregationBuilder(aggregationName), context);
}
private double sigma = 2.0;
public ExtendedStatsAggregationBuilder(String name) {
super(name, ValuesSourceType.NUMERIC, ValueType.NUMERIC);
}
/**
* Read from a stream.
*/
public ExtendedStatsAggregationBuilder(StreamInput in) throws IOException {
super(in, ValuesSourceType.NUMERIC, ValueType.NUMERIC);
sigma = in.readDouble();
}
@Override
protected void innerWriteTo(StreamOutput out) throws IOException {
out.writeDouble(sigma);
}
public ExtendedStatsAggregationBuilder sigma(double sigma) {
if (sigma < 0.0) {
throw new IllegalArgumentException("[sigma] must be greater than or equal to 0. Found [" + sigma + "] in [" + name + "]");
}
this.sigma = sigma;
return this;
}
public double sigma() {
return sigma;
}
@Override
protected ExtendedStatsAggregatorFactory innerBuild(SearchContext context, ValuesSourceConfig<Numeric> config,
AggregatorFactory<?> parent, Builder subFactoriesBuilder) throws IOException {
return new ExtendedStatsAggregatorFactory(name, config, sigma, context, parent, subFactoriesBuilder, metaData);
}
@Override
public XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
builder.field(ExtendedStatsAggregator.SIGMA_FIELD.getPreferredName(), sigma);
return builder;
}
@Override
protected int innerHashCode() {
return Objects.hash(sigma);
}
@Override
protected boolean innerEquals(Object obj) {
ExtendedStatsAggregationBuilder other = (ExtendedStatsAggregationBuilder) obj;
return Objects.equals(sigma, other.sigma);
}
@Override
public String getType() {
return NAME;
}
}
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