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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.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.aggregations.AggregationStreams;
import org.elasticsearch.search.aggregations.InternalAggregation;
import org.elasticsearch.search.aggregations.InternalAggregations;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
*
*/
public class UnmappedTerms extends InternalTerms<UnmappedTerms, InternalTerms.Bucket> {
public static final Type TYPE = new Type("terms", "umterms");
private static final List<Bucket> BUCKETS = Collections.emptyList();
private static final Map<String, Bucket> BUCKETS_MAP = Collections.emptyMap();
public static final AggregationStreams.Stream STREAM = new AggregationStreams.Stream() {
@Override
public UnmappedTerms readResult(StreamInput in) throws IOException {
UnmappedTerms buckets = new UnmappedTerms();
buckets.readFrom(in);
return buckets;
}
};
public static void registerStreams() {
AggregationStreams.registerStream(STREAM, TYPE.stream());
}
UnmappedTerms() {} // for serialization
public UnmappedTerms(String name, Terms.Order order, int requiredSize, int shardSize, long minDocCount, List<PipelineAggregator> pipelineAggregators,
Map<String, Object> metaData) {
super(name, order, requiredSize, shardSize, minDocCount, BUCKETS, false, 0, 0, pipelineAggregators, metaData);
}
@Override
public Type type() {
return TYPE;
}
@Override
public UnmappedTerms create(List<InternalTerms.Bucket> buckets) {
return new UnmappedTerms(this.name, this.order, this.requiredSize, this.shardSize, this.minDocCount, this.pipelineAggregators(), this.metaData);
}
@Override
public InternalTerms.Bucket createBucket(InternalAggregations aggregations, InternalTerms.Bucket prototype) {
throw new UnsupportedOperationException("not supported for UnmappedTerms");
}
@Override
protected UnmappedTerms create(String name, List<Bucket> buckets, long docCountError, long otherDocCount, InternalTerms prototype) {
throw new UnsupportedOperationException("not supported for UnmappedTerms");
}
@Override
protected void doReadFrom(StreamInput in) throws IOException {
this.docCountError = 0;
this.order = InternalOrder.Streams.readOrder(in);
this.requiredSize = readSize(in);
this.minDocCount = in.readVLong();
this.buckets = BUCKETS;
this.bucketMap = BUCKETS_MAP;
}
@Override
protected void doWriteTo(StreamOutput out) throws IOException {
InternalOrder.Streams.writeOrder(order, out);
writeSize(requiredSize, out);
out.writeVLong(minDocCount);
}
@Override
public InternalAggregation doReduce(List<InternalAggregation> aggregations, ReduceContext reduceContext) {
for (InternalAggregation agg : aggregations) {
if (!(agg instanceof UnmappedTerms)) {
return agg.reduce(aggregations, reduceContext);
}
}
return this;
}
@Override
public XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
builder.field(InternalTerms.DOC_COUNT_ERROR_UPPER_BOUND_FIELD_NAME, docCountError);
builder.field(SUM_OF_OTHER_DOC_COUNTS, 0);
builder.startArray(CommonFields.BUCKETS).endArray();
return builder;
}
}