/**
* Reads an element as a gml node. Returns a geometry element or {@code null} if the element does
* not match one of the specified types.
*
* @param node xml node containing gml object(s)
* @param names allowed geometry types
* @return geometry, or {@code null}
* @throws QueryException query exception
*/
private static Geometry geo(final ANode node, final QNm... names) throws QueryException {
if (node.type != NodeType.ELM) throw EXPTYPE_X_X_X.get(null, NodeType.ELM, node.type, node);
final QNm qname = node.qname();
for (final QNm geo : names) {
if (!qname.eq(geo)) continue;
// type found... create reader and geometry element
try {
final String input = node.serialize().toString();
final GMLReader gmlReader = new GMLReader();
final GeometryFactory geoFactory = new GeometryFactory();
return gmlReader.read(input, geoFactory);
} catch (final Throwable ex) {
throw GeoErrors.gmlReaderErr(ex);
}
}
return null;
}