public Collection<PropertyInstance> getAllPropInstByVClasses(List<VClass> vclasses) {

    List<PropertyInstance> propInsts = new ArrayList<PropertyInstance>();

    if (vclasses == null || vclasses.isEmpty()) {
      return propInsts;
    }

    Collections.sort(
        vclasses, new VClassHierarchyRanker(this.getWebappDaoFactory().getVClassDao()));

    OntModel ontModel = getOntModelSelector().getTBoxModel();

    try {

      ontModel.enterCriticalSection(Lock.READ);

      // map object property URI to an array of two resources:
      // the first is the "allValuesFrom" resource and the second is
      // "someValuesFrom"
      Map<String, Resource[]> applicableProperties = new HashMap<String, Resource[]>();

      try {
        for (VClass vclass : vclasses) {
          if (vclass.isAnonymous()) {
            continue;
          }
          String VClassURI = vclass.getURI();

          OntClass ontClass = getOntClass(ontModel, VClassURI);
          if (ontClass != null) {
            List<OntClass> relatedClasses = new ArrayList<OntClass>();
            relatedClasses.addAll(ontClass.listEquivalentClasses().toList());
            relatedClasses.addAll(ontClass.listSuperClasses().toList());
            for (OntClass relatedClass : relatedClasses) {
              // find properties in restrictions
              if (relatedClass.isRestriction()) {
                // TODO: check if restriction is something like
                // maxCardinality 0 or allValuesFrom owl:Nothing,
                // in which case the property is NOT applicable!
                Restriction rest = (Restriction) relatedClass.as(Restriction.class);
                OntProperty onProperty = rest.getOnProperty();
                if (onProperty != null && onProperty.canAs(ObjectProperty.class)) {
                  Resource[] ranges = new Resource[2];
                  if (rest.isAllValuesFromRestriction()) {
                    ranges[0] = (rest.asAllValuesFromRestriction()).getAllValuesFrom();
                  } else if (rest.isSomeValuesFromRestriction()) {
                    ranges[1] = (rest.asSomeValuesFromRestriction()).getSomeValuesFrom();
                  }
                  updatePropertyRangeMap(applicableProperties, onProperty.getURI(), ranges);
                }
              }
            }

            // find properties with class in domain
            ResIterator pit = ontModel.listSubjectsWithProperty(RDFS.domain, ontClass);
            while (pit.hasNext()) {
              Resource prop = pit.nextResource();
              if (prop.getNameSpace() != null
                  && !NONUSER_NAMESPACES.contains(prop.getNameSpace())) {
                StmtIterator rangeSit = prop.listProperties(RDFS.range);
                Resource rangeRes = null;
                while (rangeSit.hasNext()) {
                  Statement s = rangeSit.nextStatement();
                  if (s.getObject().isURIResource()) {
                    rangeRes = (Resource) s.getObject();
                  }
                }
                Resource[] ranges = new Resource[2];
                ranges[0] = rangeRes;
                updatePropertyRangeMap(applicableProperties, prop.getURI(), ranges);
              }
            }
          }
        }
      } catch (Exception e) {
        log.error(
            "Unable to get applicable properties "
                + "by examining property restrictions and domains",
            e);
      }

      // make the PropertyInstance objects
      for (String propertyURI : applicableProperties.keySet()) {
        ObjectProperty op = ontModel.getObjectProperty(propertyURI);
        if (op == null) {
          continue;
        }
        String domainURIStr = getURIStr(op.getDomain());
        Resource[] foundRanges = applicableProperties.get(propertyURI);
        Resource rangeRes =
            (foundRanges[0] != null)
                ? foundRanges[0]
                : (op.getRange() == null && foundRanges[1] != null)
                    ? foundRanges[1]
                    : op.getRange();
        PropertyInstance pi = new PropertyInstance();
        if (rangeRes != null) {
          String rangeClassURI;
          if (rangeRes.isAnon()) {
            rangeClassURI = PSEUDO_BNODE_NS + rangeRes.getId().toString();
          } else {
            rangeClassURI = (String) rangeRes.getURI();
          }
          pi.setRangeClassURI(rangeClassURI);
          try {
            pi.setRangeClassName(
                getWebappDaoFactory().getVClassDao().getVClassByURI(rangeClassURI).getName());
            // pi.setRangeClassName(getLabel(getOntModel().getOntResource(rangeClassURI)));
          } catch (NullPointerException e) {
            /* probably a union or intersection - need to handle this somehow */
          }
        } else {
          pi.setRangeClassURI(OWL.Thing.getURI()); // TODO see above
        }
        pi.setDomainClassURI(domainURIStr);
        try {
          pi.setDomainClassName(
              getWebappDaoFactory().getVClassDao().getVClassByURI(domainURIStr).getName());
          // pi.setDomainClassName(getLabel(getOntModel().getOntResource(op.getDomain().getURI())));
        } catch (NullPointerException e) {
          /* probably a union or intersection - need to handle this somehow */
        }
        pi.setSubjectSide(true);
        pi.setPropertyURI(op.getURI());
        pi.setPropertyName(getLabelOrId(op)); // TODO
        pi.setRangePublic(getLabelOrId(op));
        pi.setDomainPublic(getLabelOrId(op));
        propInsts.add(pi);
      }
    } finally {
      ontModel.leaveCriticalSection();
    }

    Collections.sort(propInsts, new PropInstSorter());
    return propInsts;
  }
Exemplo n.º 2
0
  private void addFieldFromRestriction(
      Map<String, Field> fieldMap, Frame frame, OntClass restriction) {
    int minCardinality = 0;
    int maxCardinality = -1;
    OntResource range = null;

    Resource resource = restriction.getPropertyResourceValue(OWL2.onProperty);
    String uri = resource.getURI();
    Field priorField = fieldMap.get(uri);

    if (priorField != null) {
      maxCardinality = priorField.getMaxCardinality();
    }

    OntProperty property = null;

    if (restriction.getPropertyResourceValue(OWL2.onProperty).canAs(OntProperty.class)) {
      property = resource.as(OntProperty.class);
    } else {
      property = model.createOntProperty(resource.getURI());
    }

    if (property != null && property.canAs(FunctionalProperty.class)) {
      maxCardinality = 1;
    }

    if (restriction.hasProperty(OWL.minCardinality)) {
      minCardinality = restriction.getProperty(OWL.minCardinality).getInt();
    }
    if (restriction.hasProperty(OWL.maxCardinality)) {
      maxCardinality = restriction.getProperty(OWL.maxCardinality).getInt();
    }
    Resource valueType = restriction.getPropertyResourceValue(OWL.allValuesFrom);
    if (valueType != null) {
      range = valueType.as(OntResource.class);
    }

    Resource hasValue = restriction.getPropertyResourceValue(OWL.hasValue);
    NamedIndividual individualValue = null;
    if (hasValue != null && hasValue.getURI() != null) {
      String individualURI = hasValue.getURI();
      individualValue = new NamedIndividual(hasValue.as(OntResource.class));
    }

    //      Resource onClass = restriction.getPropertyResourceValue(OWL2.onClass);
    //      if (onClass != null) {
    //        range = onClass.as(OntResource.class);
    //        if (restriction.hasProperty(OWL2.minQualifiedCardinality)) {
    //          minCardinality = restriction.getProperty(OWL2.minQualifiedCardinality).getInt();
    //        }
    //        if (restriction.hasProperty(OWL2.maxQualifiedCardinality)) {
    //          maxCardinality = restriction.getProperty(OWL2.maxQualifiedCardinality).getInt();
    //        }
    //
    //      } else {
    //        if (restriction.hasProperty(OWL.minCardinality)) {
    //          minCardinality = restriction.getProperty(OWL.minCardinality).getInt();
    //        }
    //        if (restriction.hasProperty(OWL.maxCardinality)) {
    //          maxCardinality = restriction.getProperty(OWL.maxCardinality).getInt();
    //        }
    //      }

    if (range == null) {
      Resource value = property.getPropertyResourceValue(RDFS.range);
      if (value == null) {
        logger.warn(
            "Ignoring field "
                + resource.getLocalName()
                + " on class "
                + frame.getLocalName()
                + ": the range is not defined.");
        return;
      }
      range = property.getPropertyResourceValue(RDFS.range).as(OntResource.class);
    }

    String comment = restriction.getComment(null);
    if (priorField != null && priorField.getDeclaringFrame() == frame) {

      priorField.setComment(comment);
      priorField.setMinCardinality(minCardinality);
      priorField.setMaxCardinality(maxCardinality);
      priorField.setValueRestriction(individualValue);
      return;
    }
    Field field = new Field(frame, property, range, minCardinality, maxCardinality);
    field.setComment(comment);
    field.setValueRestriction(individualValue);
    fieldMap.put(uri, field);

    frame.getDeclaredFields().add(field);
  }