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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.index.fielddata.plain;
import org.apache.lucene.index.*;
import org.apache.lucene.util.Accountable;
import org.apache.lucene.util.Bits;
import org.elasticsearch.ElasticsearchIllegalStateException;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.fielddata.FieldDataType;
import org.elasticsearch.index.fielddata.IndexFieldData.XFieldComparatorSource.Nested;
import org.elasticsearch.index.fielddata.IndexNumericFieldData;
import org.elasticsearch.index.fielddata.fieldcomparator.LongValuesComparatorSource;
import org.elasticsearch.index.mapper.FieldMapper.Names;
import org.elasticsearch.search.MultiValueMode;
import java.io.IOException;
import java.util.Collections;
public class NumericDVIndexFieldData extends DocValuesIndexFieldData implements IndexNumericFieldData {
public NumericDVIndexFieldData(Index index, Names fieldNames, FieldDataType fieldDataType) {
super(index, fieldNames, fieldDataType);
}
@Override
public AtomicLongFieldData load(LeafReaderContext context) {
final LeafReader reader = context.reader();
final String field = fieldNames.indexName();
return new AtomicLongFieldData(0) {
@Override
public SortedNumericDocValues getLongValues() {
try {
final NumericDocValues values = DocValues.getNumeric(reader, field);
final Bits docsWithField = DocValues.getDocsWithField(reader, field);
return DocValues.singleton(values, docsWithField);
} catch (IOException e) {
throw new ElasticsearchIllegalStateException("Cannot load doc values", e);
}
}
@Override
public Iterable<? extends Accountable> getChildResources() {
return Collections.emptyList();
}
};
}
@Override
public AtomicLongFieldData loadDirect(LeafReaderContext context) throws Exception {
return load(context);
}
@Override
public org.elasticsearch.index.fielddata.IndexFieldData.XFieldComparatorSource comparatorSource(Object missingValue, MultiValueMode sortMode, Nested nested) {
return new LongValuesComparatorSource(this, missingValue, sortMode, nested);
}
@Override
public org.elasticsearch.index.fielddata.IndexNumericFieldData.NumericType getNumericType() {
return NumericType.LONG;
}
}