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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.AtomicReader;
import org.apache.lucene.index.AtomicReaderContext;
import org.apache.lucene.index.Terms;
import org.apache.lucene.util.FixedBitSet;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.BigDoubleArrayList;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.fielddata.*;
import org.elasticsearch.index.fielddata.ordinals.Ordinals;
import org.elasticsearch.index.fielddata.ordinals.Ordinals.Docs;
import org.elasticsearch.index.fielddata.ordinals.OrdinalsBuilder;
import org.elasticsearch.index.mapper.FieldMapper;
import org.elasticsearch.index.settings.IndexSettings;
import org.elasticsearch.indices.fielddata.breaker.CircuitBreakerService;
/**
*/
public class GeoPointDoubleArrayIndexFieldData extends AbstractGeoPointIndexFieldData {
private final CircuitBreakerService breakerService;
public static class Builder implements IndexFieldData.Builder {
@Override
public IndexFieldData build(Index index, @IndexSettings Settings indexSettings, FieldMapper mapper, IndexFieldDataCache cache,
CircuitBreakerService breakerService) {
return new GeoPointDoubleArrayIndexFieldData(index, indexSettings, mapper.names(), mapper.fieldDataType(), cache, breakerService);
}
}
public GeoPointDoubleArrayIndexFieldData(Index index, @IndexSettings Settings indexSettings, FieldMapper.Names fieldNames,
FieldDataType fieldDataType, IndexFieldDataCache cache, CircuitBreakerService breakerService) {
super(index, indexSettings, fieldNames, fieldDataType, cache);
this.breakerService = breakerService;
}
@Override
public AtomicGeoPointFieldData loadDirect(AtomicReaderContext context) throws Exception {
AtomicReader reader = context.reader();
Terms terms = reader.terms(getFieldNames().indexName());
AtomicGeoPointFieldData data = null;
// TODO: Use an actual estimator to estimate before loading.
NonEstimatingEstimator estimator = new NonEstimatingEstimator(breakerService.getBreaker());
if (terms == null) {
data = new Empty(reader.maxDoc());
estimator.afterLoad(null, data.getMemorySizeInBytes());
return data;
}
final BigDoubleArrayList lat = new BigDoubleArrayList();
final BigDoubleArrayList lon = new BigDoubleArrayList();
lat.add(0); // first "t" indicates null value
lon.add(0); // first "t" indicates null value
final float acceptableTransientOverheadRatio = fieldDataType.getSettings().getAsFloat("acceptable_transient_overhead_ratio", OrdinalsBuilder.DEFAULT_ACCEPTABLE_OVERHEAD_RATIO);
OrdinalsBuilder builder = new OrdinalsBuilder(terms.size(), reader.maxDoc(), acceptableTransientOverheadRatio);
boolean success = false;
try {
final GeoPointEnum iter = new GeoPointEnum(builder.buildFromTerms(terms.iterator(null)));
GeoPoint point;
while ((point = iter.next()) != null) {
lat.add(point.getLat());
lon.add(point.getLon());
}
Ordinals build = builder.build(fieldDataType.getSettings());
if (!build.isMultiValued() && CommonSettings.removeOrdsOnSingleValue(fieldDataType)) {
Docs ordinals = build.ordinals();
int maxDoc = reader.maxDoc();
BigDoubleArrayList sLat = new BigDoubleArrayList(reader.maxDoc());
BigDoubleArrayList sLon = new BigDoubleArrayList(reader.maxDoc());
for (int i = 0; i < maxDoc; i++) {
long nativeOrdinal = ordinals.getOrd(i);
sLat.add(lat.get(nativeOrdinal));
sLon.add(lon.get(nativeOrdinal));
}
FixedBitSet set = builder.buildDocsWithValuesSet();
if (set == null) {
data = new GeoPointDoubleArrayAtomicFieldData.Single(sLon, sLat, reader.maxDoc(), ordinals.getNumOrds());
} else {
data = new GeoPointDoubleArrayAtomicFieldData.SingleFixedSet(sLon, sLat, reader.maxDoc(), set, ordinals.getNumOrds());
}
} else {
data = new GeoPointDoubleArrayAtomicFieldData.WithOrdinals(lon, lat, reader.maxDoc(), build);
}
success = true;
return data;
} finally {
if (success) {
estimator.afterLoad(null, data.getMemorySizeInBytes());
}
builder.close();
}
}
}