/*
* 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.query;
import com.google.common.collect.Lists;
import org.elasticsearch.common.geo.GeoHashUtils;
import org.elasticsearch.common.geo.GeoPoint;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.List;
/**
*
*/
public class GeoPolygonFilterBuilder extends BaseFilterBuilder {
public static final String POINTS = GeoPolygonFilterParser.POINTS;
private final String name;
private final List<GeoPoint> shell = Lists.newArrayList();
private Boolean cache;
private String cacheKey;
private String filterName;
public GeoPolygonFilterBuilder(String name) {
this.name = name;
}
/**
* Adds a point with lat and lon
*
* @param lat The latitude
* @param lon The longitude
* @return
*/
public GeoPolygonFilterBuilder addPoint(double lat, double lon) {
return addPoint(new GeoPoint(lat, lon));
}
public GeoPolygonFilterBuilder addPoint(String geohash) {
return addPoint(GeoHashUtils.decode(geohash));
}
public GeoPolygonFilterBuilder addPoint(GeoPoint point) {
shell.add(point);
return this;
}
/**
* Sets the filter name for the filter that can be used when searching for matched_filters per hit.
*/
public GeoPolygonFilterBuilder filterName(String filterName) {
this.filterName = filterName;
return this;
}
/**
* Should the filter be cached or not. Defaults to <tt>false</tt>.
*/
public GeoPolygonFilterBuilder cache(boolean cache) {
this.cache = cache;
return this;
}
public GeoPolygonFilterBuilder cacheKey(String cacheKey) {
this.cacheKey = cacheKey;
return this;
}
@Override
protected void doXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(GeoPolygonFilterParser.NAME);
builder.startObject(name);
builder.startArray(POINTS);
for (GeoPoint point : shell) {
builder.startArray().value(point.lon()).value(point.lat()).endArray();
}
builder.endArray();
builder.endObject();
if (filterName != null) {
builder.field("_name", filterName);
}
if (cache != null) {
builder.field("_cache", cache);
}
if (cacheKey != null) {
builder.field("_cache_key", cacheKey);
}
builder.endObject();
}
}