/**
* Create a new geohash filter for a given set of geohashes. In general this method returns a
* boolean filter combining the geohashes OR-wise.
*
* @param context Context of the filter
* @param fieldType field mapper for geopoints
* @param geohash mandatory geohash
* @param geohashes optional array of additional geohashes
* @return a new GeoBoundinboxfilter
*/
public static Query create(
QueryShardContext context,
BaseGeoPointFieldMapper.GeoPointFieldType fieldType,
String geohash,
@Nullable List<CharSequence> geohashes) {
MappedFieldType geoHashMapper = fieldType.geoHashFieldType();
if (geoHashMapper == null) {
throw new IllegalArgumentException("geohash filter needs geohash_prefix to be enabled");
}
if (geohashes == null || geohashes.size() == 0) {
return geoHashMapper.termQuery(geohash, context);
} else {
geohashes.add(geohash);
return geoHashMapper.termsQuery(geohashes, context);
}
}
