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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.dfs;
import com.carrotsearch.hppc.ObjectObjectOpenHashMap;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.CollectionStatistics;
import org.apache.lucene.search.TermStatistics;
import org.elasticsearch.common.collect.HppcMaps;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Streamable;
import java.io.IOException;
public class AggregatedDfs implements Streamable {
private ObjectObjectOpenHashMap<Term, TermStatistics> termStatistics;
private ObjectObjectOpenHashMap<String, CollectionStatistics> fieldStatistics;
private long maxDoc;
private AggregatedDfs() {
}
public AggregatedDfs(ObjectObjectOpenHashMap<Term, TermStatistics> termStatistics, ObjectObjectOpenHashMap<String, CollectionStatistics> fieldStatistics, long maxDoc) {
this.termStatistics = termStatistics;
this.fieldStatistics = fieldStatistics;
this.maxDoc = maxDoc;
}
public ObjectObjectOpenHashMap<Term, TermStatistics> termStatistics() {
return termStatistics;
}
public ObjectObjectOpenHashMap<String, CollectionStatistics> fieldStatistics() {
return fieldStatistics;
}
public long maxDoc() {
return maxDoc;
}
public static AggregatedDfs readAggregatedDfs(StreamInput in) throws IOException {
AggregatedDfs result = new AggregatedDfs();
result.readFrom(in);
return result;
}
@Override
public void readFrom(StreamInput in) throws IOException {
int size = in.readVInt();
termStatistics = HppcMaps.newMap(size);
for (int i = 0; i < size; i++) {
Term term = new Term(in.readString(), in.readBytesRef());
TermStatistics stats = new TermStatistics(in.readBytesRef(),
in.readVLong(),
DfsSearchResult.subOne(in.readVLong()));
termStatistics.put(term, stats);
}
fieldStatistics = DfsSearchResult.readFieldStats(in);
maxDoc = in.readVLong();
}
@Override
public void writeTo(final StreamOutput out) throws IOException {
out.writeVInt(termStatistics.size());
final boolean[] states = termStatistics.allocated;
final Object[] keys = termStatistics.keys;
final Object[] values = termStatistics.values;
for (int i = 0; i < states.length; i++) {
if (states[i]) {
Term term = (Term) keys[i];
out.writeString(term.field());
out.writeBytesRef(term.bytes());
TermStatistics stats = (TermStatistics) values[i];
out.writeBytesRef(stats.term());
out.writeVLong(stats.docFreq());
out.writeVLong(DfsSearchResult.addOne(stats.totalTermFreq()));
}
}
DfsSearchResult.writeFieldStats(out, fieldStatistics);
out.writeVLong(maxDoc);
}
}