org.elasticsearch.search.aggregations.bucket.range.GeoDistanceRangeAggregatorFactory Maven / Gradle / Ivy
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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.search.aggregations.bucket.range;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.SortedNumericDocValues;
import org.elasticsearch.common.geo.GeoDistance;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.common.geo.GeoUtils;
import org.elasticsearch.common.unit.DistanceUnit;
import org.elasticsearch.index.fielddata.MultiGeoPointValues;
import org.elasticsearch.index.fielddata.SortedBinaryDocValues;
import org.elasticsearch.index.fielddata.SortedNumericDoubleValues;
import org.elasticsearch.search.aggregations.Aggregator;
import org.elasticsearch.search.aggregations.AggregatorFactories;
import org.elasticsearch.search.aggregations.AggregatorFactory;
import org.elasticsearch.search.aggregations.CardinalityUpperBound;
import org.elasticsearch.search.aggregations.bucket.range.GeoDistanceAggregationBuilder.Range;
import org.elasticsearch.search.aggregations.support.AggregationContext;
import org.elasticsearch.search.aggregations.support.CoreValuesSourceType;
import org.elasticsearch.search.aggregations.support.ValuesSource;
import org.elasticsearch.search.aggregations.support.ValuesSourceAggregatorFactory;
import org.elasticsearch.search.aggregations.support.ValuesSourceConfig;
import org.elasticsearch.search.aggregations.support.ValuesSourceRegistry;
import java.io.IOException;
import java.util.Map;
public class GeoDistanceRangeAggregatorFactory extends ValuesSourceAggregatorFactory {
public static void registerAggregators(ValuesSourceRegistry.Builder builder) {
builder.register(
GeoDistanceAggregationBuilder.REGISTRY_KEY,
CoreValuesSourceType.GEOPOINT,
(
name,
factories,
distanceType,
origin,
units,
valuesSource,
format,
rangeFactory,
ranges,
keyed,
context,
parent,
cardinality,
metadata) -> {
DistanceSource distanceSource = new DistanceSource((ValuesSource.GeoPoint) valuesSource, distanceType, origin, units);
double averageDocsPerRange = ((double) context.searcher().getIndexReader().maxDoc()) / ranges.length;
return RangeAggregator.buildWithoutAttemptedToAdaptToFilters(
name,
factories,
distanceSource,
format,
rangeFactory,
ranges,
averageDocsPerRange,
keyed,
context,
parent,
cardinality,
metadata
);
},
true
);
}
private final GeoDistanceAggregatorSupplier aggregatorSupplier;
private final InternalRange.Factory rangeFactory = InternalGeoDistance.FACTORY;
private final GeoPoint origin;
private final Range[] ranges;
private final DistanceUnit unit;
private final GeoDistance distanceType;
private final boolean keyed;
public GeoDistanceRangeAggregatorFactory(
String name,
ValuesSourceConfig config,
GeoPoint origin,
Range[] ranges,
DistanceUnit unit,
GeoDistance distanceType,
boolean keyed,
AggregationContext context,
AggregatorFactory parent,
AggregatorFactories.Builder subFactoriesBuilder,
Map metadata,
GeoDistanceAggregatorSupplier aggregatorSupplier
) throws IOException {
super(name, config, context, parent, subFactoriesBuilder, metadata);
this.aggregatorSupplier = aggregatorSupplier;
this.origin = origin;
this.ranges = ranges;
this.unit = unit;
this.distanceType = distanceType;
this.keyed = keyed;
}
@Override
protected Aggregator createUnmapped(Aggregator parent, Map metadata) throws IOException {
return new RangeAggregator.Unmapped<>(name, factories, ranges, keyed, config.format(), context, parent, rangeFactory, metadata);
}
@Override
protected Aggregator doCreateInternal(Aggregator parent, CardinalityUpperBound cardinality, Map metadata)
throws IOException {
return aggregatorSupplier.build(
name,
factories,
distanceType,
origin,
unit,
config.getValuesSource(),
config.format(),
rangeFactory,
ranges,
keyed,
context,
parent,
cardinality,
metadata
);
}
private static class DistanceSource extends ValuesSource.Numeric {
private final ValuesSource.GeoPoint source;
private final GeoDistance distanceType;
private final DistanceUnit units;
private final org.elasticsearch.common.geo.GeoPoint origin;
DistanceSource(
ValuesSource.GeoPoint source,
GeoDistance distanceType,
org.elasticsearch.common.geo.GeoPoint origin,
DistanceUnit units
) {
this.source = source;
// even if the geo points are unique, there's no guarantee the
// distances are
this.distanceType = distanceType;
this.units = units;
this.origin = origin;
}
@Override
public boolean isFloatingPoint() {
return true;
}
@Override
public SortedNumericDocValues longValues(LeafReaderContext ctx) {
throw new UnsupportedOperationException();
}
@Override
public SortedNumericDoubleValues doubleValues(LeafReaderContext ctx) {
final MultiGeoPointValues geoValues = source.geoPointValues(ctx);
return GeoUtils.distanceValues(distanceType, units, geoValues, origin);
}
@Override
public SortedBinaryDocValues bytesValues(LeafReaderContext ctx) {
throw new UnsupportedOperationException();
}
}
}