// http://docs.mongodb.org/manual/reference/operator/near/#op._S_near
@Override
public Filter createFilter(final List<String> path, DBObject refExpression) {
LOG.debug("path:{}, refExp:{}", path, refExpression);
Number maxDistance = typecast(MAX_DISTANCE, refExpression.get(MAX_DISTANCE), Number.class);
final List<LatLong> coordinates;
if (refExpression.get(command) instanceof BasicDBList) {
coordinates =
GeoUtil.latLon(
Collections.singletonList(command),
refExpression); // typecast(command, refExpression.get(command), List.class);
} else {
DBObject dbObject = typecast(command, refExpression.get(command), DBObject.class);
coordinates = GeoUtil.latLon(Arrays.asList("$geometry", "coordinates"), dbObject);
}
return createNearFilter(path, coordinates, maxDistance, spherical);
}
