/*
* 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.index.fielddata.plain;
import org.apache.lucene.util.Accountable;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.DocValues;
import org.apache.lucene.index.RandomAccessOrds;
import org.elasticsearch.ElasticsearchIllegalStateException;
import org.elasticsearch.index.fielddata.AtomicFieldData;
import org.elasticsearch.index.fielddata.FieldData;
import java.io.IOException;
import java.util.Collections;
/**
* An {@link AtomicFieldData} implementation that uses Lucene {@link org.apache.lucene.index.SortedSetDocValues}.
*/
public final class SortedSetDVBytesAtomicFieldData extends AbstractAtomicOrdinalsFieldData {
private final LeafReader reader;
private final String field;
SortedSetDVBytesAtomicFieldData(LeafReader reader, String field) {
this.reader = reader;
this.field = field;
}
@Override
public RandomAccessOrds getOrdinalsValues() {
try {
return FieldData.maybeSlowRandomAccessOrds(DocValues.getSortedSet(reader, field));
} catch (IOException e) {
throw new ElasticsearchIllegalStateException("cannot load docvalues", e);
}
}
@Override
public void close() {
}
@Override
public long ramBytesUsed() {
return 0; // unknown
}
@Override
public Iterable<? extends Accountable> getChildResources() {
return Collections.emptyList();
}
}