}
List<SKOSType> types = new LinkedList<SKOSType>();
if (typeString != null) {
for (String s : typeString.split(" ")) {
try {
SKOSType st = SKOSType.valueOf(s.toUpperCase());
if (st != null) {
types.add(st);
}
} catch (IllegalArgumentException e) {
throw new ElasticsearchIllegalArgumentException("The property 'skosType' must be one of PREF, ALT, HIDDEN, BROADER, NARROWER, BROADERTRANSITIVE, NARROWERTRANSITIVE, RELATED");