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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.terms;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.util.SetBackedScalingCuckooFilter;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.AggregationReduceContext;
import org.elasticsearch.search.aggregations.InternalAggregation;
import org.elasticsearch.search.aggregations.InternalAggregations;
import org.elasticsearch.search.aggregations.support.SamplingContext;
import org.elasticsearch.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import static java.util.Collections.emptyList;
/**
* Result of the RareTerms aggregation when the field is unmapped.
*/
public class UnmappedRareTerms extends InternalRareTerms {
public static final String NAME = "umrareterms";
protected abstract static class Bucket extends InternalRareTerms.Bucket {
private Bucket(long docCount, InternalAggregations aggregations, DocValueFormat formatter) {
super(docCount, aggregations, formatter);
}
}
UnmappedRareTerms(String name, Map metadata) {
super(name, LongRareTermsAggregator.ORDER, 0, metadata);
}
/**
* Read from a stream.
*/
public UnmappedRareTerms(StreamInput in) throws IOException {
super(in);
}
@Override
protected void writeTermTypeInfoTo(StreamOutput out) throws IOException {
// Nothing to write
}
@Override
public String getWriteableName() {
return NAME;
}
@Override
public String getType() {
return StringTerms.NAME;
}
@Override
public UnmappedRareTerms create(List buckets) {
return new UnmappedRareTerms(name, metadata);
}
@Override
public UnmappedRareTerms.Bucket createBucket(InternalAggregations aggregations, UnmappedRareTerms.Bucket prototype) {
throw new UnsupportedOperationException("not supported for UnmappedRareTerms");
}
@Override
UnmappedRareTerms.Bucket createBucket(long docCount, InternalAggregations aggs, Bucket prototype) {
throw new UnsupportedOperationException("not supported for UnmappedRareTerms");
}
@Override
protected UnmappedRareTerms createWithFilter(String name, List buckets, SetBackedScalingCuckooFilter filter) {
throw new UnsupportedOperationException("not supported for UnmappedRareTerms");
}
@Override
public InternalAggregation reduce(List aggregations, AggregationReduceContext reduceContext) {
return new UnmappedRareTerms(name, metadata);
}
@Override
public InternalAggregation finalizeSampling(SamplingContext samplingContext) {
return new UnmappedRareTerms(name, metadata);
}
@Override
public boolean isMapped() {
return false;
}
@Override
public final XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
return doXContentCommon(builder, params, Collections.emptyList());
}
@Override
public List getBuckets() {
return emptyList();
}
@Override
public UnmappedRareTerms.Bucket getBucketByKey(String term) {
return null;
}
@Override
protected UnmappedRareTerms.Bucket[] createBucketsArray(int size) {
return new UnmappedRareTerms.Bucket[size];
}
}