org.elasticsearch.index.fielddata.plain.LatLonPointDVAtomicFieldData Maven / Gradle / Ivy
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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.geo.GeoEncodingUtils;
import org.apache.lucene.index.DocValues;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.SortedNumericDocValues;
import org.apache.lucene.util.Accountable;
import org.apache.lucene.util.ArrayUtil;
import org.apache.lucene.util.RamUsageEstimator;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.index.fielddata.MultiGeoPointValues;
import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
final class LatLonPointDVAtomicFieldData extends AbstractAtomicGeoPointFieldData {
private final LeafReader reader;
private final String fieldName;
LatLonPointDVAtomicFieldData(LeafReader reader, String fieldName) {
super();
this.reader = reader;
this.fieldName = fieldName;
}
@Override
public long ramBytesUsed() {
return 0; // not exposed by lucene
}
@Override
public Collection getChildResources() {
return Collections.emptyList();
}
@Override
public void close() {
// noop
}
@Override
public MultiGeoPointValues getGeoPointValues() {
try {
final SortedNumericDocValues numericValues = DocValues.getSortedNumeric(reader, fieldName);
return new MultiGeoPointValues() {
final GeoPoint point = new GeoPoint();
@Override
public boolean advanceExact(int doc) throws IOException {
return numericValues.advanceExact(doc);
}
@Override
public int docValueCount() {
return numericValues.docValueCount();
}
@Override
public GeoPoint nextValue() throws IOException {
final long encoded = numericValues.nextValue();
point.reset(GeoEncodingUtils.decodeLatitude((int) (encoded >>> 32)),
GeoEncodingUtils.decodeLongitude((int) encoded));
return point;
}
};
} catch (IOException e) {
throw new IllegalStateException("Cannot load doc values", e);
}
}
}