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/*
* 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.global;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.search.aggregations.AbstractAggregationBuilder;
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.AggregationContext;
import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.XContentParser;
import java.io.IOException;
import java.util.Map;
public class GlobalAggregationBuilder extends AbstractAggregationBuilder {
public static GlobalAggregationBuilder parse(XContentParser parser, String aggregationName) throws IOException {
parser.nextToken();
return new GlobalAggregationBuilder(aggregationName);
}
public static final String NAME = "global";
public GlobalAggregationBuilder(String name) {
super(name);
}
protected GlobalAggregationBuilder(GlobalAggregationBuilder clone, Builder factoriesBuilder, Map metadata) {
super(clone, factoriesBuilder, metadata);
}
@Override
protected AggregationBuilder shallowCopy(Builder factoriesBuilder, Map metadata) {
return new GlobalAggregationBuilder(this, factoriesBuilder, metadata);
}
/**
* Read from a stream.
*/
public GlobalAggregationBuilder(StreamInput in) throws IOException {
super(in);
}
@Override
protected void doWriteTo(StreamOutput out) throws IOException {
// Nothing to write
}
@Override
public BucketCardinality bucketCardinality() {
return BucketCardinality.ONE;
}
@Override
protected AggregatorFactory doBuild(AggregationContext context, AggregatorFactory parent, Builder subFactoriesBuilder)
throws IOException {
return new GlobalAggregatorFactory(name, context, parent, subFactoriesBuilder, metadata);
}
@Override
protected XContentBuilder internalXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.endObject();
return builder;
}
@Override
public String getType() {
return NAME;
}
}