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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.xcontent.XContentBuilder;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.BucketOrder;
import org.elasticsearch.search.aggregations.InternalAggregation;
import org.elasticsearch.search.aggregations.InternalAggregations;
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 {@link TermsAggregator} when the field is unmapped.
*/
public class UnmappedTerms extends InternalTerms {
public static final String NAME = "umterms";
/**
* Concrete type that can't be built because Java needs a concrete type so {@link InternalTerms.Bucket} can have a self type but
* {@linkplain UnmappedTerms} doesn't ever need to build it because it never returns any buckets.
*/
protected abstract static class Bucket extends InternalTerms.Bucket {
private Bucket(long docCount, InternalAggregations aggregations, boolean showDocCountError, long docCountError,
DocValueFormat formatter) {
super(docCount, aggregations, showDocCountError, docCountError, formatter);
}
}
public UnmappedTerms(String name, BucketOrder order, int requiredSize, long minDocCount, Map metadata) {
super(name, order, order, requiredSize, minDocCount, metadata);
}
/**
* Read from a stream.
*/
public UnmappedTerms(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 UnmappedTerms create(List buckets) {
return new UnmappedTerms(name, order, requiredSize, minDocCount, metadata);
}
@Override
public Bucket createBucket(InternalAggregations aggregations, Bucket prototype) {
throw new UnsupportedOperationException("not supported for UnmappedTerms");
}
@Override
Bucket createBucket(long docCount, InternalAggregations aggs, long docCountError, Bucket prototype) {
throw new UnsupportedOperationException("not supported for UnmappedTerms");
}
@Override
protected UnmappedTerms create(String name, List buckets, BucketOrder reduceOrder, long docCountError, long otherDocCount) {
throw new UnsupportedOperationException("not supported for UnmappedTerms");
}
@Override
public InternalAggregation reduce(List aggregations, ReduceContext reduceContext) {
return new UnmappedTerms(name, order, requiredSize, minDocCount, metadata);
}
@Override
public boolean isMapped() {
return false;
}
@Override
public final XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
return doXContentCommon(builder, params, 0, 0, Collections.emptyList());
}
@Override
protected void setDocCountError(long docCountError) {
}
@Override
protected int getShardSize() {
return 0;
}
@Override
public long getDocCountError() {
return 0;
}
@Override
public long getSumOfOtherDocCounts() {
return 0;
}
@Override
public List getBuckets() {
return emptyList();
}
@Override
public Bucket getBucketByKey(String term) {
return null;
}
@Override
protected Bucket[] createBucketsArray(int size) {
return new Bucket[size];
}
}