OWL API를 사용하여 주석 내부에 rdf : description을 읽는 방법

Question

OWL API를 처음 사용합니다. 다음 OWL 파일에서 rdfs:label 안에있는 값을 얻으려면 어떻게해야합니까? oboInOwl:hasSynonym은 주석 속성입니다.

<oboInOwl:hasSynonym> 
    <rdf:Description> 
    <rdf:type rdf:resource="&oboInOwl;Synonym"/> 
    <rdfs:label xml:lang="en">Endocardiums</rdfs:label> 
    </rdf:Description> 
</oboInOwl:hasSynonym> 

나는 Owl API를 사용하고 있습니다. 나는 XML 파서를 사용하고 싶지 않다.

Answer 1

설명 된 구조 유형을 포함하는 온톨로지를 다시 작성하고 관심있는 특수 효과 속성 값을 검색하는 방법을 보여주는 코드입니다. getSampleOntology()은 온톨로지를 만들고 (인쇄하고) mainx에서 시작하여 hasSynonym 값을 찾은 다음 그 값 중 rdfs:label 초를 찾을 수있는 방법을 보여줍니다. 이는 설명서의 OWL API code examples을 기반으로합니다.

import org.semanticweb.owlapi.apibinding.OWLManager; 
import org.semanticweb.owlapi.io.OWLOntologyDocumentTarget; 
import org.semanticweb.owlapi.io.RDFXMLOntologyFormat; 
import org.semanticweb.owlapi.io.SystemOutDocumentTarget; 
import org.semanticweb.owlapi.model.IRI; 
import org.semanticweb.owlapi.model.OWLAnnotation; 
import org.semanticweb.owlapi.model.OWLAnnotationAssertionAxiom; 
import org.semanticweb.owlapi.model.OWLAnnotationProperty; 
import org.semanticweb.owlapi.model.OWLAnnotationSubject; 
import org.semanticweb.owlapi.model.OWLAnonymousIndividual; 
import org.semanticweb.owlapi.model.OWLAxiom; 
import org.semanticweb.owlapi.model.OWLDataFactory; 
import org.semanticweb.owlapi.model.OWLIndividual; 
import org.semanticweb.owlapi.model.OWLNamedIndividual; 
import org.semanticweb.owlapi.model.OWLObjectProperty; 
import org.semanticweb.owlapi.model.OWLObjectPropertyAssertionAxiom; 
import org.semanticweb.owlapi.model.OWLOntology; 
import org.semanticweb.owlapi.model.OWLOntologyCreationException; 
import org.semanticweb.owlapi.model.OWLOntologyFormat; 
import org.semanticweb.owlapi.model.OWLOntologyManager; 
import org.semanticweb.owlapi.model.OWLOntologyStorageException; 
import org.semanticweb.owlapi.vocab.OWLRDFVocabulary; 

public class OWLAPIAnnotations { 
    final static OWLOntologyManager manager = OWLManager.createOWLOntologyManager(); 
    final static OWLDataFactory factory = manager.getOWLDataFactory(); 
    final static String ns = "http://example.org/"; 
    final static OWLNamedIndividual x = factory.getOWLNamedIndividual(IRI.create(ns+"x")); 
    final static OWLAnonymousIndividual y = factory.getOWLAnonymousIndividual(); 
    final static OWLObjectProperty hasSynonym = factory.getOWLObjectProperty(IRI.create(ns + "hasSynonym")); 

    public static OWLOntology getSampleOntology() throws OWLOntologyCreationException, OWLOntologyStorageException { 
     OWLOntology ontology = manager.createOntology(); 
     manager.addAxiom(ontology, factory.getOWLClassAssertionAxiom(factory.getOWLClass(IRI.create(ns + "Synonym")), y)); 
     manager.addAxiom(ontology, factory.getOWLObjectPropertyAssertionAxiom(hasSynonym, x, y)); 
     OWLAnnotation ann = factory.getOWLAnnotation(factory.getOWLAnnotationProperty(OWLRDFVocabulary.RDFS_LABEL.getIRI()), factory.getOWLLiteral("Endocardium", "en")); 
     manager.addAxiom(ontology, factory.getOWLAnnotationAssertionAxiom(y, ann)); 
     manager.saveOntology(ontology, System.out); 
     return ontology; 
    } 

    public static void main(String[] args) throws OWLOntologyCreationException, OWLOntologyStorageException { 
     OWLOntology ontology = getSampleOntology(); 
     for(OWLIndividual object : x.getObjectPropertyValues(hasSynonym, ontology)) { 
      for (OWLAnnotationAssertionAxiom aAxiom : ontology.getAnnotationAssertionAxioms((OWLAnnotationSubject) object)) { 
       if (aAxiom.getProperty().equals(factory.getRDFSLabel())) { 
        System.out.println(aAxiom.getValue()); 
       } 
      } 
     } 
    } 
} 

(주석 값 것을 나타낸다) 단부에서의 출력은 :

"Endocardium"@en 

생성 된 온톨로지 (주석 공간을 제거하여)이다

<?xml version="1.0"?> 
<rdf:RDF xmlns="http://www.w3.org/2002/07/owl#" 
    xml:base="http://www.w3.org/2002/07/owl" 
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" 
    xmlns:owl="http://www.w3.org/2002/07/owl#" 
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" 
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
    xmlns:example="http://example.org/"> 
    <ObjectProperty rdf:about="http://example.org/hasSynonym"/> 
    <Class rdf:about="http://example.org/Synonym"/> 
    <NamedIndividual rdf:about="http://example.org/x"> 
     <example:hasSynonym> 
      <rdf:Description> 
       <rdf:type rdf:resource="http://example.org/Synonym"/> 
       <rdfs:label xml:lang="en">Endocardium</rdfs:label> 
      </rdf:Description> 
     </example:hasSynonym> 
    </NamedIndividual> 
</rdf:RDF>