org.elasticsearch.index.fielddata.plain.GeoPointLegacyDVAtomicFieldData Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
/*
* 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.BinaryDocValues;
import org.apache.lucene.util.Accountable;
import org.apache.lucene.util.ArrayUtil;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.RamUsageEstimator;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.common.util.ByteUtils;
import org.elasticsearch.index.fielddata.MultiGeoPointValues;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
final class GeoPointLegacyDVAtomicFieldData extends AbstractAtomicGeoPointFieldData {
private static final int COORDINATE_SIZE = 8; // number of bytes per coordinate
private static final int GEOPOINT_SIZE = COORDINATE_SIZE * 2; // lat + lon
private final BinaryDocValues values;
GeoPointLegacyDVAtomicFieldData(BinaryDocValues values) {
super();
this.values = values;
}
@Override
public long ramBytesUsed() {
return 0; // not exposed by Lucene
}
@Override
public Collection getChildResources() {
return Collections.emptyList();
}
@Override
public void close() {
// no-op
}
@Override
public MultiGeoPointValues getGeoPointValues() {
return new MultiGeoPointValues() {
int count;
GeoPoint[] points = new GeoPoint[0];
@Override
public void setDocument(int docId) {
final BytesRef bytes = values.get(docId);
assert bytes.length % GEOPOINT_SIZE == 0;
count = (bytes.length >>> 4);
if (count > points.length) {
final int previousLength = points.length;
points = Arrays.copyOf(points, ArrayUtil.oversize(count, RamUsageEstimator.NUM_BYTES_OBJECT_REF));
for (int i = previousLength; i < points.length; ++i) {
points[i] = new GeoPoint(Double.NaN, Double.NaN);
}
}
for (int i = 0; i < count; ++i) {
final double lat = ByteUtils.readDoubleLE(bytes.bytes, bytes.offset + i * GEOPOINT_SIZE);
final double lon = ByteUtils.readDoubleLE(bytes.bytes, bytes.offset + i * GEOPOINT_SIZE + COORDINATE_SIZE);
points[i].reset(lat, lon);
}
}
@Override
public int count() {
return count;
}
@Override
public GeoPoint valueAt(int index) {
return points[index];
}
};
}
}