semantic-web - 使用OWL API，给定OWLClass，如何获取 of it?

Question

使用OWL API 3.4.9。

给定一个OWLClass和本体，如何在该本体中获取该<rdfs:label>的OWLClass？

我希望以String的类型获取标签。

Answer 1

受guide to the OWL-API的启发，以下代码应该可以正常工作(未经测试):

//Initialise
OWLOntologyManager m = create();
OWLOntology o = m.loadOntologyFromOntologyDocument(pizza_iri);
OWLDataFactory df = OWLManager.getOWLDataFactory();

//Get your class of interest
OWLClass cls = df.getOWLClass(IRI.create(pizza_iri + "#foo"));

// Get the annotations on the class that use the label property (rdfs:label)
for (OWLAnnotation annotation : cls.getAnnotations(o, df.getRDFSLabel())) {
  if (annotation.getValue() instanceof OWLLiteral) {
    OWLLiteral val = (OWLLiteral) annotation.getValue();
    // look for portuguese labels - can be skipped
      if (val.hasLang("pt")) {
        //Get your String here
        System.out.println(cls + " labelled " + val.getLiteral());
      }
   }
}