Exemplo n.º 1
0
 private boolean isAbstract(OntProperty p) {
   List<RDFNode> list = p.listPropertyValues(RDF.type).toList();
   for (RDFNode node : list) {
     if (node.canAs(Resource.class)) {
       Resource r = node.asResource();
       if (BindVocabulary.AbstractProperty.getURI().equals(r.getURI())) return true;
     }
   }
   return false;
 }
Exemplo n.º 2
0
  private void handleSubpropertyOf(OntProperty p, OntProperty ancestor) {

    List<RDFNode> list = ancestor.listPropertyValues(RDFS.subPropertyOf).toList();
    for (RDFNode node : list) {
      if (!node.canAs(OntProperty.class)) continue;

      OntProperty superProperty = node.as(OntProperty.class);
      if (superProperty.equals(ancestor)) continue;
      addFields(p, superProperty);
      handleSubpropertyOf(p, superProperty);
    }
  }
Exemplo n.º 3
0
 /**
  * Attempts to find the most plausible RDF type for a given property.
  *
  * @param property the property to get the type of
  * @return either owl:DatatypeProperty or owl:ObjectProperty
  */
 private Resource getPropertyType(Resource property) {
   StmtIterator it = model.listStatements(property, RDFS.range, (RDFNode) null);
   if (it.hasNext()) {
     while (it.hasNext()) {
       Statement s = it.nextStatement();
       RDFNode n = s.getObject();
       if (n.canAs(Resource.class)
           && model.contains((Resource) n.as(Resource.class), RDF.type, OWL.Class)) {
         return OWL.ObjectProperty;
       }
     }
   }
   return OWL.DatatypeProperty;
 }
Exemplo n.º 4
0
  private Field createListField(Frame frame, OntProperty p, OntResource range) {

    Resource intersection = range.getPropertyResourceValue(OWL.intersectionOf);
    if (intersection == null) return null;

    if (intersection.canAs(RDFList.class)) {
      List<RDFNode> intersectionList = intersection.as(RDFList.class).asJavaList();
      for (RDFNode node : intersectionList) {
        if (node.canAs(OntClass.class)) {
          OntClass intersectionMember = node.as(OntClass.class);

          if (RDF.first.equals(intersectionMember.getPropertyResourceValue(OWL.onProperty))) {
            // The intersectionMember has an owl:onProperty property whose value is rdf:first

            Resource elementRdfType =
                intersectionMember.getPropertyResourceValue(OWL.allValuesFrom);

            if (elementRdfType != null) {

              String elementTypeURI = elementRdfType.getURI();
              if (elementTypeURI != null) {
                RdfType elementType = manager.getTypeByURI(elementTypeURI);
                if (elementType != null) {

                  ListType listType = manager.getListTypeByElementUri(elementTypeURI);
                  if (listType == null) {
                    listType = new ListType(manager, intersectionMember, elementType);
                    manager.add(listType);
                  }

                  return new Field(frame, p, listType);
                }
              }
            }
          }
        }
      }
    }

    return null;
  }
Exemplo n.º 5
0
 private void unifyRDFSVersion(String ns) {
   for (Iterator it = Jena.cloneIt(model.listStatements()); it.hasNext(); ) {
     Statement s = (Statement) it.next();
     Resource newSubject = s.getSubject();
     Property newPredicate = s.getPredicate();
     RDFNode newObject = s.getObject();
     boolean changed = false;
     if (ns.equals(newSubject.getNameSpace())) {
       changed = true;
       newSubject = model.getResource(RDFS.getURI() + newSubject.getLocalName());
     }
     if (ns.equals(newPredicate.getNameSpace())) {
       changed = true;
       newPredicate = model.getProperty(RDFS.getURI() + newPredicate.getLocalName());
     }
     if (newObject.canAs(Resource.class)) {
       Resource oldResource = (Resource) newObject.as(Resource.class);
       if (ns.equals(oldResource.getNameSpace())) {
         changed = true;
         newObject = model.getResource(RDFS.getURI() + oldResource.getLocalName());
       }
     }
     if (changed) {
       model.add(newSubject, newPredicate, newObject);
       if (log.isLoggable(Level.FINE)) {
         log.fine(
             "Replaced deprecated triple "
                 + s
                 + " with "
                 + newSubject
                 + ", "
                 + newPredicate
                 + ", "
                 + newObject);
       }
       it.remove();
     }
   }
 }
Exemplo n.º 6
0
  private void handlePropertySubclassOf(OntProperty p) {

    List<RDFNode> list = p.listPropertyValues(RDFS.subClassOf).toList();
    for (RDFNode node : list) {
      if (!node.canAs(Resource.class)) continue;
      Resource resource = node.asResource();
      Resource onPropertyValue = resource.getPropertyResourceValue(OWL.onProperty);
      if (!RDFS.domain.equals(onPropertyValue)) continue;
      Resource someValuesFrom = resource.getPropertyResourceValue(OWL.someValuesFrom);
      if (someValuesFrom == null) continue;
      String uri = someValuesFrom.getURI();
      if (uri != null) {
        OntResource type = someValuesFrom.as(OntResource.class);
        addField(type, p, null);
      } else {
        Resource unionList = someValuesFrom.getPropertyResourceValue(OWL.unionOf);
        while (unionList != null) {
          Resource first = unionList.getPropertyResourceValue(RDF.first);
          if (first != null) {
            String typeURI = first.getURI();
            if (typeURI == null) {
              logger.warn(
                  "Cannot handle union that contains an anonymous class in the domain of "
                      + p.getURI());
            } else {
              OntResource type = first.as(OntResource.class);
              addField(type, p, null);
            }
          }
          unionList = unionList.getPropertyResourceValue(RDF.rest);
          if (RDF.nil.equals(unionList)) {
            break;
          }
        }
      }
    }
  }
Exemplo n.º 7
0
 /**
  * If _n_ is a ReifiedStatement, create a local copy of it, which will force the underlying
  * reifier to take note of the mapping.
  */
 private void noteIfReified(RDFNode n) {
   if (n.canAs(ReifiedStatement.class)) {
     ReifiedStatement rs = n.as(ReifiedStatement.class);
     createReifiedStatement(rs.getURI(), rs.getStatement());
   }
 }
Exemplo n.º 8
0
 /* (non-Javadoc)
  * @see com.hp.hpl.jena.rdf.model.RDFNode#canAs(java.lang.Class)
  */
 @Override
 public <T extends RDFNode> boolean canAs(Class<T> view) {
   return rdfNode.canAs(view);
 }
  // renames percentage properties and classes
  // activeProperties -> if true, then rename properties
  // activeClasses -> if true, then rename classes
  public OntModel renameResource(
      boolean activeProperties,
      boolean activeClasses,
      float percentage,
      boolean activeRandomString,
      boolean activeTranslateString,
      boolean activeSynonym,
      int activeStringOperation) {
    List<Statement> statements = null; // the list of all statements
    HashMap<String, String> propertiesIdentifiers =
        null; // the HashMap of the properties identifiers
    HashMap<String, String> classesIdentifiers = null; // the HashMap of the classes identifiers

    OntModel newModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM); // create new Model
    // get properties and classes identifiers
    if (activeProperties)
      propertiesIdentifiers =
          getPropertiesIdentifiers(
              percentage,
              activeRandomString,
              activeTranslateString,
              activeSynonym,
              activeStringOperation);
    if (activeClasses)
      classesIdentifiers =
          getClassesIdentifiers(
              percentage,
              activeRandomString,
              activeTranslateString,
              activeSynonym,
              activeStringOperation);

    // iterate and modify the identifiers
    for (Statement stm : modifiedModel.listStatements().toList()) {

      Resource subject = stm.getSubject(); // the subject
      Property predicate = stm.getPredicate(); // the predicate
      RDFNode object = stm.getObject(); // the object

      boolean isPred, isSubj, isObj;
      isPred = isSubj = isObj = false;

      String subjuri = subject.getURI();
      String subjectLocalName = getLocalName(subjuri);
      Resource subj = null;
      // if it is the subject of the statement
      if (subjectLocalName != null) {
        String subjectNameSpace = getNameSpace(subjuri);
        if (activeProperties) {
          if (propertiesIdentifiers.containsKey(subjectLocalName)) {
            // if the namespace of the subject is the same as the namespace of the property
            // identifier
            if (subjectNameSpace.equals(modifiedOntologyNS)) { // that we want to remove
              isSubj = true;
              subj =
                  newModel.createResource(
                      subjectNameSpace + propertiesIdentifiers.get(subjectLocalName));
            }
          }
        }

        if (activeClasses) {
          if (classesIdentifiers.containsKey(subjectLocalName)) {
            // if the namespace of the subject is the same as the namespace of the property
            // identifier
            // that we want to remove
            if (subjectNameSpace.equals(modifiedOntologyNS)) {
              isSubj = true;
              subj =
                  newModel.createResource(
                      subjectNameSpace + classesIdentifiers.get(subjectLocalName));
            }
          }
        }
      }

      // if it is the predicate of the statement
      String preduri = predicate.getURI();
      String predicateLocalName = getLocalName(preduri);
      String predicateNameSpace = getNameSpace(preduri);
      Property pred = null;
      if (activeProperties) {
        if (propertiesIdentifiers.containsKey(predicateLocalName)) {
          // if the namespace of the predicate is the same as the namespace of the property
          // identifier
          // that we want to remove
          if (predicateNameSpace.equals(modifiedOntologyNS)) {
            isPred = true;
            pred =
                newModel.createProperty(
                    predicateNameSpace, propertiesIdentifiers.get(predicateLocalName));
          }
        }
      }

      if (activeClasses) {
        if (classesIdentifiers.containsKey(predicateLocalName)) {
          // if the namespace of the predicate is the same as the namespace of the property
          // identifier
          // that we want to remove
          if (predicateNameSpace.equals(modifiedOntologyNS)) {
            isPred = true;
            pred =
                newModel.createProperty(
                    predicateNameSpace, classesIdentifiers.get(predicateLocalName));
          }
        }
      }

      Resource obj = null;
      // if it is the object of the statement
      if (object.canAs(Resource.class))
        if (object.isURIResource()) {
          String uri = object.asResource().getURI();
          String objectLocalName = getLocalName(uri);
          String objectNameSpace = getNameSpace(uri);
          if (activeProperties) {
            if (propertiesIdentifiers.containsKey(objectLocalName)) {
              // if the namespace of the object is the same as the namespace of the property
              // identifier
              // that we want to remove
              if (objectNameSpace.equals(modifiedOntologyNS)) {
                isObj = true;
                obj =
                    newModel.createResource(
                        objectNameSpace + propertiesIdentifiers.get(objectLocalName));
              }
            }
          }

          if (activeClasses) {
            if (classesIdentifiers.containsKey(objectLocalName)) {
              // if the namespace of the object is the same as the namespace of the property
              // identifier that we want to remove
              if (objectNameSpace.equals(modifiedOntologyNS)) {
                isObj = true;
                obj =
                    newModel.createResource(
                        objectNameSpace + classesIdentifiers.get(objectLocalName));
              }
            }
          }
        }

      if (isSubj) {
        if (isPred) {
          if (isObj) newModel.add(subj, pred, obj);
          else newModel.add(subj, pred, object);
        } else {
          if (isObj) newModel.add(subj, predicate, obj);
          else newModel.add(subj, predicate, object);
        }
      } else {
        if (isPred) {
          if (isObj) newModel.add(subject, pred, obj);
          else newModel.add(subject, pred, object);
        } else {
          if (isObj) newModel.add(subject, predicate, obj);
          else newModel.add(subject, predicate, object);
        }
      }
    }
    if (activeClasses) {
      buildClassHierarchy();
      // we update the class hierarchy according to the new modifications
      classHierarchy.updateClassHierarchy(alignment);
      // classHierarchy.printClassHierarchy();
    }
    return newModel;
  }