How to use

DMNElement$ExtensionElements

in

org.kie.dmn.model.api

@Override
public List<DecisionService> getDecisionService() {
  if ( decisionService == null ) {
    decisionService = new ArrayList<>();
    // as DMN1.1 xsd is broken to allow proper persistence of DecisionService, do fetch them from extensions.
    if ( getExtensionElements() != null ) {
      List<DecisionService> collectDS = getExtensionElements().getAny().stream()
                                .filter(DecisionServices.class::isInstance).map(DecisionServices.class::cast)
                                .flatMap(dss -> dss.getDecisionService().stream())
                                .collect(Collectors.toList());
      decisionService.addAll(collectDS);
    }
  }
  return this.decisionService;
}

final DMNElement.ExtensionElements id1elements = inputData1.getExtensionElements();
assertNotNull(id1elements);
assertEquals(1, id1elements.getAny().size());
final FirstNameDescription firstNameDescription = (FirstNameDescription) id1elements.getAny().get(0);
assertEquals("First name in latin characters", firstNameDescription.getContent());
final DMNElement.ExtensionElements id2elements = inputData2.getExtensionElements();
assertNotNull(id2elements);
assertEquals(1, id2elements.getAny().size());
final LastNameDescription lastNameDescription = (LastNameDescription) id2elements.getAny().get(0);
assertEquals("Last name in latin characters", lastNameDescription.getContent());

  final DMNElement.ExtensionElements id1elements = inputData1.getExtensionElements();
  assertNotNull(id1elements);
  assertEquals(1, id1elements.getAny().size());
  final FirstNameDescription firstNameDescription = (FirstNameDescription) id1elements.getAny().get(0);
  assertEquals("First name in latin characters", firstNameDescription.getContent());
  final DMNElement.ExtensionElements id2elements = inputData2.getExtensionElements();
  assertNotNull(id2elements);
  assertEquals(1, id2elements.getAny().size());
  final LastNameDescription lastNameDescription = (LastNameDescription) id2elements.getAny().get(0);
  assertEquals("Last name in latin characters", lastNameDescription.getContent());
} catch (final Exception e) {

final DMNElement.ExtensionElements id1elements = inputData1.getExtensionElements();
assertNotNull(id1elements);
assertEquals(0, id1elements.getAny().size());
final DMNElement.ExtensionElements id2elements = inputData2.getExtensionElements();
assertNotNull(id2elements);
assertEquals(0, id2elements.getAny().size());