org.elasticsearch.search.aggregations.metrics.ParsedGeoCentroid Maven / Gradle / Ivy
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* 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.search.aggregations.metrics;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.search.aggregations.ParsedAggregation;
import org.elasticsearch.search.aggregations.metrics.InternalGeoCentroid.Fields;
import java.io.IOException;
/**
* Serialization and merge logic for {@link GeoCentroidAggregator}.
*/
public class ParsedGeoCentroid extends ParsedAggregation implements GeoCentroid {
private GeoPoint centroid;
private long count;
@Override
public GeoPoint centroid() {
return centroid;
}
@Override
public long count() {
return count;
}
@Override
public String getType() {
return GeoCentroidAggregationBuilder.NAME;
}
@Override
public XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
if (centroid != null) {
builder.startObject(Fields.CENTROID.getPreferredName());
{
builder.field(Fields.CENTROID_LAT.getPreferredName(), centroid.lat());
builder.field(Fields.CENTROID_LON.getPreferredName(), centroid.lon());
}
builder.endObject();
}
builder.field(Fields.COUNT.getPreferredName(), count);
return builder;
}
private static final ObjectParser PARSER = new ObjectParser<>(ParsedGeoCentroid.class.getSimpleName(), true,
ParsedGeoCentroid::new);
private static final ObjectParser GEO_POINT_PARSER = new ObjectParser<>(
ParsedGeoCentroid.class.getSimpleName() + "_POINT", true, GeoPoint::new);
static {
declareAggregationFields(PARSER);
PARSER.declareObject((agg, centroid) -> agg.centroid = centroid, GEO_POINT_PARSER, Fields.CENTROID);
PARSER.declareLong((agg, count) -> agg.count = count, Fields.COUNT);
GEO_POINT_PARSER.declareDouble(GeoPoint::resetLat, Fields.CENTROID_LAT);
GEO_POINT_PARSER.declareDouble(GeoPoint::resetLon, Fields.CENTROID_LON);
}
public static ParsedGeoCentroid fromXContent(XContentParser parser, final String name) {
ParsedGeoCentroid geoCentroid = PARSER.apply(parser, null);
geoCentroid.setName(name);
return geoCentroid;
}
}