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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.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.Collections;
final class GeoPointBinaryDVAtomicFieldData 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;
GeoPointBinaryDVAtomicFieldData(BinaryDocValues values) {
super();
this.values = values;
}
@Override
public long ramBytesUsed() {
return 0; // not exposed by Lucene
}
@Override
public Iterable<? extends Accountable> 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();
}
}
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];
}
};
}
}