Ejemplo n.º 1
0
  protected int verifyQueryResult(
      CloseableIteration<? extends BindingSet, QueryEvaluationException> resultIter,
      int expectedBindingCount)
      throws QueryEvaluationException {
    int resultCount = 0;

    while (resultIter.hasNext()) {
      BindingSet resultBindings = resultIter.next();
      resultCount++;

      assertEquals(
          "Wrong number of binding names for binding set",
          expectedBindingCount,
          resultBindings.getBindingNames().size());

      int bindingCount = 0;
      Iterator<Binding> bindingIter = resultBindings.iterator();
      while (bindingIter.hasNext()) {
        bindingIter.next();
        bindingCount++;
      }

      assertEquals("Wrong number of bindings in binding set", expectedBindingCount, bindingCount);
    }

    return resultCount;
  }
Ejemplo n.º 2
0
  public Collection<String> getAllDisjointProperties(String startingProperty)
      throws RepositoryException, MalformedQueryException, QueryEvaluationException {
    Set<String> allDisjointProperties = new HashSet<>();
    RepositoryConnection con = this.repository.getConnection();
    try {
      TupleQuery allDisjointPropertiesQuery =
          con.prepareTupleQuery(
              QueryLanguage.SPARQL,
              "SELECT ?items  "
                  + "WHERE { ?y a owl:AllDisjointProperties ."
                  + "?y owl:members ?members ."
                  + "?members rdf:rest*/rdf:first <"
                  + startingProperty
                  + "> ."
                  + "?members rdf:rest*/rdf:first ?items ."
                  + "FILTER (?items != <"
                  + startingProperty
                  + ">) .}");

      TupleQueryResult allDisjointPropertiesResult = allDisjointPropertiesQuery.evaluate();
      try {
        while (allDisjointPropertiesResult.hasNext()) {
          BindingSet bindingSet = allDisjointPropertiesResult.next();
          Value name = bindingSet.getValue("items");
          allDisjointProperties.add(name.toString());
        }
      } finally {
        allDisjointPropertiesResult.close();
      }
    } finally {
      con.close();
    }
    return allDisjointProperties;
  }
Ejemplo n.º 3
0
  private void splitJourneyLocation(
      ConcurrentMap<String, IRI> variableTypes,
      List<LDObject> journeyLocation,
      List<LDObject> journeyDatas,
      BindingSet bindings) {
    LDObject locationsData = new LDObject();
    LDObject journeyData = new LDObject();

    bindings
        .getBindingNames()
        .stream()
        .forEach(
            bindingName -> {
              org.openrdf.model.Value value = bindings.getBinding(bindingName).getValue();
              QueryResultsParser.updateVariableTypes(variableTypes, bindingName, value);

              if (Arrays.asList("id", "creationDate", "name", "status").contains(bindingName)) {
                journeyData.addKeyValue(new KeyValue(bindingName, value.stringValue()));
              } else {
                locationsData.addKeyValue(new KeyValue(bindingName, value.stringValue()));
              }

              if ("locationId".equalsIgnoreCase(bindingName)) {
                journeyData.addKeyValue(new KeyValue(bindingName, value.stringValue()));
              }
            });

    journeyLocation.add(locationsData);
    journeyDatas.add(journeyData);
  }
Ejemplo n.º 4
0
  /**
   * Execute a SELECT SPARQL query against the graphs
   *
   * @param qs SELECT SPARQL query
   * @return list of solutions, each containing a hashmap of bindings
   */
  public List<HashMap<String, Value>> runSPARQL(String qs) {
    try {
      RepositoryConnection con = currentRepository.getConnection();
      try {
        TupleQuery query = con.prepareTupleQuery(org.openrdf.query.QueryLanguage.SPARQL, qs);
        TupleQueryResult qres = query.evaluate();
        ArrayList<HashMap<String, Value>> reslist = new ArrayList<HashMap<String, Value>>();
        while (qres.hasNext()) {
          BindingSet b = qres.next();

          Set<String> names = b.getBindingNames();
          HashMap<String, Value> hm = new HashMap<String, Value>();
          for (String n : names) {
            hm.put(n, b.getValue(n));
          }
          reslist.add(hm);
        }
        return reslist;
      } finally {
        con.close();
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
    return null;
  }
Ejemplo n.º 5
0
 public Collection<String> getIntersectionOf(String startingClass)
     throws RepositoryException, MalformedQueryException, QueryEvaluationException {
   Set<String> intersectionOfClasses = new HashSet<>();
   RepositoryConnection con = this.repository.getConnection();
   try {
     TupleQuery intersectionOfQuery =
         con.prepareTupleQuery(
             QueryLanguage.SPARQL,
             "SELECT ?c WHERE {  ?c owl:intersectionOf ?l .  "
                 + "?l rdf:rest*/rdf:first <"
                 + startingClass
                 + "> .}");
     TupleQueryResult intersectionOfResult = intersectionOfQuery.evaluate();
     try {
       while (intersectionOfResult.hasNext()) {
         BindingSet bindingSet = intersectionOfResult.next();
         Value name = bindingSet.getValue("c");
         intersectionOfClasses.add(name.toString());
         // System.out.println("intersections Ofs : " + name);
       }
     } finally {
       intersectionOfResult.close();
     }
   } finally {
     con.close();
   }
   return intersectionOfClasses;
 }
Ejemplo n.º 6
0
  public void tupleQuery()
      throws QueryEvaluationException, RepositoryException, MalformedQueryException {

    // /query repo
    // con.setNamespace("onto",
    // "<http://it.unibz.krdb/obda/ontologies/test/translation/onto2.owl#>");
    // System.out.println(con.getNamespaces().next().toString());
    String queryString =
        "PREFIX : \n<http://it.unibz.krdb/obda/ontologies/test/translation/onto2.owl#>\n "
            + "SELECT ?x ?y WHERE { ?x a :Person. ?x :age ?y } ";
    // String queryString =
    // "SELECT ?x ?y WHERE { ?x a onto:Person. ?x onto:age ?y } ";
    TupleQuery tupleQuery = (con).prepareTupleQuery(QueryLanguage.SPARQL, queryString);
    TupleQueryResult result = tupleQuery.evaluate();

    System.out.println(result.getBindingNames());

    while (result.hasNext()) {
      BindingSet bindingSet = result.next();
      Value valueOfX = bindingSet.getValue("x");
      Literal valueOfY = (Literal) bindingSet.getValue("y");
      System.out.println(valueOfX.stringValue() + ", " + valueOfY.floatValue());
    }
    result.close();
  }
Ejemplo n.º 7
0
  private void calculateGraphsAndDataSets() {
    try {
      RepositoryConnection conn = repository.getConnection();
      TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SPARQL, SparqlUtils.PREFIXES + QUERY);
      TupleQueryResult results = q.evaluate();
      graphs = new LinkedList<DataCubeGraph>();
      datasets = new LinkedList<DataSet>();
      String lastG = null;
      String lastDSD = null;
      SparqlDCGraph dcGraph;
      SparqlStructure dcStructure = null;
      Collection<DataSet> graphDataSets = null;
      Collection<Structure> graphStructures = null;
      Collection<DataSet> structDataSets = null;
      while (results.hasNext()) {
        BindingSet set = results.next();
        String g = set.getValue("g").stringValue();
        String ds = set.getValue("ds").stringValue();
        String dsd = set.getValue("dsd").stringValue();

        if (!g.equals(lastG)) {
          // new Graph
          dcGraph = new SparqlDCGraph(repository, g);
          graphDataSets = new LinkedList<DataSet>();
          graphStructures = new LinkedList<Structure>();
          dcGraph.setDatasets(graphDataSets);
          dcGraph.setStructures(graphStructures);
          graphs.add(dcGraph);
          // new structure
          dcStructure = new SparqlStructure(repository, dsd, g);
          structDataSets = new LinkedList<DataSet>();
          dcStructure.setDatasets(structDataSets);
          graphStructures.add(dcStructure);
        } else if (!dsd.equals(lastDSD)) {
          // new structure
          dcStructure = new SparqlStructure(repository, dsd, g);
          structDataSets = new LinkedList<DataSet>();
          dcStructure.setDatasets(structDataSets);
          graphStructures.add(dcStructure);
        }

        SparqlDataSet dcDataSet = new SparqlDataSet(repository, ds, g);
        dcDataSet.setStructure(dcStructure);
        graphDataSets.add(dcDataSet);
        structDataSets.add(dcDataSet);
        datasets.add(dcDataSet);

        lastG = g;
        lastDSD = dsd;
      }
    } catch (RepositoryException ex) {
      Logger.getLogger(SparqlDCRepository.class.getName()).log(Level.SEVERE, null, ex);
    } catch (MalformedQueryException ex) {
      Logger.getLogger(SparqlDCRepository.class.getName()).log(Level.SEVERE, null, ex);
    } catch (QueryEvaluationException ex) {
      Logger.getLogger(SparqlDCRepository.class.getName()).log(Level.SEVERE, null, ex);
    }
  }
Ejemplo n.º 8
0
  @Override
  protected BindingSet getNextElement() throws QueryEvaluationException {
    if (hashTable == null) {
      setupHashTable();
    }

    while (currentScanElem == null) {
      if (scanList.size() > 0) {
        currentScanElem = scanList.remove(0);
      } else {
        if (restIter.hasNext()) {
          currentScanElem = restIter.next();
        } else {
          // no more elements available
          return null;
        }
      }

      if (currentScanElem instanceof EmptyBindingSet) {
        // the empty bindingset should be merged with all bindingset in
        // the hash table
        hashTableValues = new ArrayList<BindingSet>();
        for (BindingSet key : hashTable.keySet()) {
          hashTableValues.addAll(hashTable.get(key));
        }
      } else {
        BindingSet key = calcKey(currentScanElem, joinAttributes);

        if (hashTable.containsKey(key)) {
          hashTableValues = new ArrayList<BindingSet>(hashTable.get(key));
        } else {
          currentScanElem = null;
          hashTableValues = null;
        }
      }
    }

    BindingSet nextHashTableValue = hashTableValues.remove(0);

    QueryBindingSet result = new QueryBindingSet(currentScanElem);

    for (String name : nextHashTableValue.getBindingNames()) {
      Binding b = nextHashTableValue.getBinding(name);
      if (!result.hasBinding(name)) {
        result.addBinding(b);
      }
    }

    if (hashTableValues.size() == 0) {
      // we've exhausted the current scanlist entry
      currentScanElem = null;
      hashTableValues = null;
    }

    return result;
  }
Ejemplo n.º 9
0
    public static RootOAMOData parseOAMORootData(TupleQueryResult qres) {
      RootOAMOData rootOAMOData = new RootOAMOData();

      try {
        // while (qres.hasNext())
        // {
        BindingSet b = qres.next();
        Set names = b.getBindingNames();

        for (Object n : names) {
          if (((String) n).equalsIgnoreCase("oamoName")) {
            String str =
                (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
            rootOAMOData.setOamoName(str);
            System.out.print("oamoName: " + rootOAMOData.getOamoName());
          } else if (((String) n).equalsIgnoreCase("userID")) {
            String str =
                (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
            rootOAMOData.setUserID(str);
            System.out.print("userID: " + rootOAMOData.getUserID());
          }
          // else if(((String) n).equalsIgnoreCase("serviceID"))
          // {
          // String str = (b.getValue((String) n)==null) ? null :
          // b.getValue((String) n).stringValue();
          // rootOAMOData.setServiceID(str);
          // System.out.print("serviceID: "+rootOAMOData.getServiceID());
          // }
          else if (((String) n).equalsIgnoreCase("oamoDesc")) {
            String str =
                (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
            rootOAMOData.setOamoDesc(str);
            System.out.println("oamoDesc : " + rootOAMOData.getOamoDesc() + " ");
          } else if (((String) n).equalsIgnoreCase("oamoGraphMeta")) {
            String str =
                (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
            rootOAMOData.setOamoGraphMeta(str);
            System.out.println("oamoGraphMeta : " + rootOAMOData.getOamoGraphMeta() + " ");
          }
        }
        // }//while
        return rootOAMOData;
      } catch (QueryEvaluationException e) {
        e.printStackTrace();
        return null;
      } catch (Exception e) {
        e.printStackTrace();
        return null;
      }
    }
Ejemplo n.º 10
0
 /**
  * * Prints the query results of result.
  *
  * @param result
  * @throws QueryEvaluationException
  */
 public static void printTupleQueryResult(TupleQueryResult result)
     throws QueryEvaluationException {
   while (result.hasNext()) {
     /*
      * iterate over the result and print the
      * bindings.
      */
     BindingSet bindingSet = result.next();
     Value valueOfX = bindingSet.getValue("x");
     Value valueOfY = bindingSet.getValue("y");
     System.out.print("value of ?x " + valueOfX + " ++++++ ");
     System.out.println("value of ?y " + valueOfY);
   }
 }
Ejemplo n.º 11
0
  @Test
  public void testAddWhileQuerying() throws Exception {
    // Add some data to the repository
    con.begin();
    con.addStatement(painter, RDF.TYPE, RDFS.CLASS);
    con.addStatement(painting, RDF.TYPE, RDFS.CLASS);
    con.addStatement(picasso, RDF.TYPE, painter);
    con.addStatement(guernica, RDF.TYPE, painting);
    con.addStatement(picasso, paints, guernica);
    con.commit();

    ParsedTupleQuery tupleQuery =
        QueryParserUtil.parseTupleQuery(QueryLanguage.SERQL, "SELECT C FROM {} rdf:type {C}", null);

    CloseableIteration<? extends BindingSet, QueryEvaluationException> iter;
    iter = con.evaluate(tupleQuery.getTupleExpr(), null, EmptyBindingSet.getInstance(), false);

    con.begin();

    while (iter.hasNext()) {
      BindingSet bindings = iter.next();
      Value c = bindings.getValue("C");
      if (c instanceof Resource) {
        con.addStatement((Resource) c, RDF.TYPE, RDFS.CLASS);
      }
    }

    con.commit();

    assertEquals(3, countElements(con.getStatements(null, RDF.TYPE, RDFS.CLASS, false)));

    // simulate auto-commit
    tupleQuery =
        QueryParserUtil.parseTupleQuery(QueryLanguage.SERQL, "SELECT P FROM {} P {}", null);
    iter = con.evaluate(tupleQuery.getTupleExpr(), null, EmptyBindingSet.getInstance(), false);

    while (iter.hasNext()) {
      BindingSet bindings = iter.next();
      Value p = bindings.getValue("P");
      if (p instanceof URI) {
        con.begin();
        con.addStatement((URI) p, RDF.TYPE, RDF.PROPERTY);
        con.commit();
      }
    }

    assertEquals(2, countElements(con.getStatements(null, RDF.TYPE, RDF.PROPERTY, false)));
  }
  @Override
  public CloseableIteration<BindingSet, QueryEvaluationException> evaluate(
      String sparqlQueryString,
      BindingSet bindings,
      String baseUri,
      QueryType type,
      Service service)
      throws QueryEvaluationException {
    RepositoryConnection conn = endpoint.getConn();
    try {
      TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, sparqlQueryString, baseUri);

      Iterator<Binding> bIter = bindings.iterator();
      while (bIter.hasNext()) {
        Binding b = bIter.next();
        if (service.getServiceVars().contains(b.getName()))
          query.setBinding(b.getName(), b.getValue());
      }

      TupleQueryResult qRes = query.evaluate();
      return new InsertBindingsIteration(qRes, bindings);
    } catch (OpenRDFException e) {
      throw new QueryEvaluationException(e);
    }
  }
Ejemplo n.º 13
0
 /**
  * * Prints a single given assignment.
  *
  * @param assignment
  */
 public static void printBindingSet(BindingSet assignment) {
   if (assignment == null) {
     System.out.println("null");
   } else {
     Value valueOfX = assignment.getValue("x");
     Value valueOfY = assignment.getValue("y");
     System.out.print("value of ?x " + valueOfX + " ++++++ ");
     System.out.println("value of ?y " + valueOfY);
   }
 }
Ejemplo n.º 14
0
 private BindingSet calcKey(BindingSet bindings, Set<String> commonVars) {
   QueryBindingSet q = new QueryBindingSet();
   for (String varName : commonVars) {
     Binding b = bindings.getBinding(varName);
     if (b != null) {
       q.addBinding(b);
     }
   }
   return q;
 }
Ejemplo n.º 15
0
  protected void testValueRoundTrip(Resource subj, URI pred, Value obj) throws Exception {
    con.begin();
    con.addStatement(subj, pred, obj);
    con.commit();

    CloseableIteration<? extends Statement, SailException> stIter =
        con.getStatements(null, null, null, false);

    try {
      assertTrue(stIter.hasNext());

      Statement st = stIter.next();
      assertEquals(subj, st.getSubject());
      assertEquals(pred, st.getPredicate());
      assertEquals(obj, st.getObject());
      assertTrue(!stIter.hasNext());
    } finally {
      stIter.close();
    }

    ParsedTupleQuery tupleQuery =
        QueryParserUtil.parseTupleQuery(
            QueryLanguage.SERQL,
            "SELECT S, P, O FROM {S} P {O} WHERE P = <" + pred.stringValue() + ">",
            null);

    CloseableIteration<? extends BindingSet, QueryEvaluationException> iter;
    iter = con.evaluate(tupleQuery.getTupleExpr(), null, EmptyBindingSet.getInstance(), false);

    try {
      assertTrue(iter.hasNext());

      BindingSet bindings = iter.next();
      assertEquals(subj, bindings.getValue("S"));
      assertEquals(pred, bindings.getValue("P"));
      assertEquals(obj, bindings.getValue("O"));
      assertTrue(!iter.hasNext());
    } finally {
      iter.close();
    }
  }
Ejemplo n.º 16
0
    public static ArrayList<QueryData> parseOSMOQueryData(TupleQueryResult qres) {
      ArrayList<QueryData> queryDataList = new ArrayList<QueryData>();

      try {
        while (qres.hasNext()) {
          BindingSet b = qres.next();
          Set names = b.getBindingNames();
          QueryData queryData = new QueryData();

          for (Object n : names) {
            if (((String) n).equalsIgnoreCase("queryID")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              queryData.setId(str);
              System.out.print("srvcStatus id: " + queryData.getId() + " ");
            } else if (((String) n).equalsIgnoreCase("queryString")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              queryData.setQueryString(str);
              System.out.print("srvcStatusTime : " + queryData.getQueryString() + " ");
            }
          }
          queryDataList.add(queryData);
        } // while
        return queryDataList;
      } catch (QueryEvaluationException e) {
        e.printStackTrace();
        return null;
      } catch (Exception e) {
        e.printStackTrace();
        return null;
      }
    }
Ejemplo n.º 17
0
  private RDFRectangle toRectangle(StatementPattern pattern, BindingSet bindings) {
    Value sVal = pattern.getSubjectVar().getValue();
    Value pVal = pattern.getPredicateVar().getValue();
    Value oVal = pattern.getObjectVar().getValue();

    RDFURIRange subjectRange;
    List<String> list = new ArrayList<String>();
    if (sVal == null) {
      if (bindings.hasBinding(pattern.getSubjectVar().getName()))
        list.add(bindings.getValue(pattern.getSubjectVar().getName()).stringValue());
    } else list.add(sVal.stringValue());

    if (!list.isEmpty()) subjectRange = new RDFURIRange(list);
    else subjectRange = new RDFURIRange();

    ExplicitSetRange<URI> predicateRange;
    Set<URI> set = new HashSet<URI>();
    if (pVal == null) {
      if (bindings.hasBinding(pattern.getPredicateVar().getName()))
        set.add((URI) bindings.getValue(pattern.getPredicateVar().getName()));
    } else set.add((URI) pVal);

    if (!set.isEmpty()) predicateRange = new ExplicitSetRange<URI>(set);
    else predicateRange = new ExplicitSetRange<>();

    RDFValueRange objectRange = new RDFValueRange();
    if (oVal == null) {
      if (bindings.hasBinding(pattern.getObjectVar().getName()))
        objectRange = fillObjectRange(bindings.getValue(pattern.getObjectVar().getName()));
    } else objectRange = fillObjectRange(oVal);

    return new RDFRectangle(subjectRange, predicateRange, objectRange);
  }
  public TestSuite createTestSuite() throws Exception {
    // Create test suite
    TestSuite suite = new TestSuite(N3ParserTestCase.class.getName());

    // Add the manifest to a repository and query it
    Repository repository = new SailRepository(new MemoryStore());
    repository.initialize();
    RepositoryConnection con = repository.getConnection();

    URL url = url(MANIFEST_URL);
    con.add(url, base(MANIFEST_URL), RDFFormat.TURTLE);

    // Add all positive parser tests to the test suite
    String query =
        "SELECT testURI, inputURL, outputURL "
            + "FROM {testURI} rdf:type {n3test:PositiveParserTest}; "
            + "               n3test:inputDocument {inputURL}; "
            + "               n3test:outputDocument {outputURL} "
            + "USING NAMESPACE n3test = <http://www.w3.org/2004/11/n3test#>";

    TupleQueryResult queryResult = con.prepareTupleQuery(QueryLanguage.SERQL, query).evaluate();
    while (queryResult.hasNext()) {
      BindingSet bindingSet = queryResult.next();
      String testURI = bindingSet.getValue("testURI").toString();
      String inputURL = bindingSet.getValue("inputURL").toString();
      String outputURL = bindingSet.getValue("outputURL").toString();

      suite.addTest(new PositiveParserTest(testURI, inputURL, outputURL));
    }

    queryResult.close();

    // Add all negative parser tests to the test suite
    query =
        "SELECT testURI, inputURL "
            + "FROM {testURI} rdf:type {n3test:NegativeParserTest}; "
            + "               n3test:inputDocument {inputURL} "
            + "USING NAMESPACE n3test = <http://www.w3.org/2004/11/n3test#>";

    queryResult = con.prepareTupleQuery(QueryLanguage.SERQL, query).evaluate();

    while (queryResult.hasNext()) {
      BindingSet bindingSet = queryResult.next();
      String testURI = bindingSet.getValue("testURI").toString();
      String inputURL = bindingSet.getValue("inputURL").toString();

      suite.addTest(new NegativeParserTest(testURI, inputURL));
    }
    queryResult.close();
    con.close();
    repository.shutDown();

    return suite;
  }
Ejemplo n.º 19
0
  public static BindingSet project(
      ProjectionElemList projElemList, BindingSet sourceBindings, BindingSet parentBindings) {
    QueryBindingSet resultBindings = new QueryBindingSet(parentBindings);

    for (ProjectionElem pe : projElemList.getElements()) {
      Value targetValue = sourceBindings.getValue(pe.getSourceName());
      if (targetValue != null) {
        // Potentially overwrites bindings from super
        resultBindings.setBinding(pe.getTargetName(), targetValue);
      }
    }

    return resultBindings;
  }
 @Override
 protected BindingSet convert(BindingSet bIn) throws QueryEvaluationException {
   QueryBindingSet res = new QueryBindingSet();
   int bIndex = -1;
   Iterator<Binding> bIter = bIn.iterator();
   while (bIter.hasNext()) {
     Binding b = bIter.next();
     String name = b.getName();
     bIndex = Integer.parseInt(name.substring(name.lastIndexOf("_") + 1));
     res.addBinding(name.substring(0, name.lastIndexOf("_")), b.getValue());
   }
   if (bIndex > -1) res.addAll(bindings.get(bIndex));
   return res;
 }
    private void evaluateIntoStatements(ParsedGraphQuery query, Collection<Statement> statements)
        throws SailException, RDFHandlerException, QueryEvaluationException {
      CloseableIteration<? extends BindingSet, QueryEvaluationException> bindingsIter =
          getWrappedConnection()
              .evaluate(query.getTupleExpr(), null, EmptyBindingSet.getInstance(), true);

      try {
        ValueFactory vf = getValueFactory();

        while (bindingsIter.hasNext()) {
          BindingSet bindings = bindingsIter.next();

          Value subj = bindings.getValue("subject");
          Value pred = bindings.getValue("predicate");
          Value obj = bindings.getValue("object");

          if (subj instanceof Resource && pred instanceof IRI && obj != null) {
            statements.add(vf.createStatement((Resource) subj, (IRI) pred, obj));
          }
        }
      } finally {
        bindingsIter.close();
      }
    }
Ejemplo n.º 22
0
    public static ArrayList<RootOsmoData> parseOSMOListOfOAMO(TupleQueryResult qres) {
      ArrayList<RootOsmoData> osmoDataList = new ArrayList<RootOsmoData>();

      try {
        while (qres.hasNext()) {
          BindingSet b = qres.next();
          Set names = b.getBindingNames();

          RootOsmoData osmoData = new RootOsmoData();

          for (Object n : names) {
            if (((String) n).equalsIgnoreCase("serviceID")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              osmoData.setId(str);
              System.out.print("serviceID: " + osmoData.getId() + " ");
            } else if (((String) n).equalsIgnoreCase("srvcName")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              osmoData.setName(str);
              System.out.print("srvcName : " + osmoData.getName() + " ");
            } else if (((String) n).equalsIgnoreCase("srvcDesc")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              osmoData.setDesc(str);
              System.out.print("srvcDesc : " + osmoData.getDesc() + " ");
            }
          }
          osmoDataList.add(osmoData);
        } // while
        return osmoDataList;
      } catch (QueryEvaluationException e) {
        e.printStackTrace();
        return null;
      } catch (Exception e) {
        e.printStackTrace();
        return null;
      }
    }
Ejemplo n.º 23
0
    public static ArrayList<WidgetPresentationData> parseWidgetPreListByService(
        TupleQueryResult qres) {
      ArrayList<WidgetPresentationData> widgetPresentationDataList =
          new ArrayList<WidgetPresentationData>();
      try {
        while (qres.hasNext()) {
          BindingSet b = qres.next();
          Set names = b.getBindingNames();
          WidgetPresentationData widgetPreData = new WidgetPresentationData();

          for (Object n : names) {
            if (((String) n).equalsIgnoreCase("widgetPreID")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              widgetPreData.setId(str);
              System.out.print("widgetPreID: " + widgetPreData.getId() + " ");
            } else if (((String) n).equalsIgnoreCase("widgetID")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              widgetPreData.setWidgetID(str);
              System.out.print("widgetID: " + widgetPreData.getWidgetID() + " ");
            } else if (((String) n).equalsIgnoreCase("widgetAttrID")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              widgetPreData.setWidgetAttrID(str);
              System.out.print("widgetAttr: " + widgetPreData.getWidgetAttrID() + " ");
            }
          }
          widgetPresentationDataList.add(widgetPreData);
        } // while
        return widgetPresentationDataList;
      } catch (QueryEvaluationException e) {
        e.printStackTrace();
        return null;
      } catch (Exception e) {
        e.printStackTrace();
        return null;
      }
    }
Ejemplo n.º 24
0
    public static ArrayList<WidgetAttr> parseWidgetAttributes(TupleQueryResult qres) {
      ArrayList<WidgetAttr> widgetAttrList = new ArrayList<WidgetAttr>();
      try {
        while (qres.hasNext()) {
          BindingSet b = qres.next();
          Set names = b.getBindingNames();
          WidgetAttr widgetAttr = new WidgetAttr();

          for (Object n : names) {
            if (((String) n).equalsIgnoreCase("widgetAttrID")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              widgetAttr.setId(str);
              System.out.print("widgetattr id: " + widgetAttr.getId() + " ");
            } else if (((String) n).equalsIgnoreCase("widgetAttrName")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              widgetAttr.setName(str);
              System.out.print("widgetAttrName: " + widgetAttr.getName() + " ");
            } else if (((String) n).equalsIgnoreCase("widgetAttrDesc")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              widgetAttr.setValue(str);
              System.out.print("widgetAttrDesc: " + widgetAttr.getValue() + " ");
            }
          }
          widgetAttrList.add(widgetAttr);
        } // while
        return widgetAttrList;
      } catch (QueryEvaluationException e) {
        e.printStackTrace();
        return null;
      } catch (Exception e) {
        e.printStackTrace();
        return null;
      }
    }
Ejemplo n.º 25
0
    public static ArrayList<ServiceStatusData> parseServiceStatusOfOSMO(TupleQueryResult qres) {
      ArrayList<ServiceStatusData> serviceStatusDataList = new ArrayList<ServiceStatusData>();
      try {
        while (qres.hasNext()) {
          BindingSet b = qres.next();
          Set names = b.getBindingNames();
          ServiceStatusData srvcStatusData = new ServiceStatusData();

          for (Object n : names) {
            if (((String) n).equalsIgnoreCase("srvcStatusID")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              srvcStatusData.setSrvcStatusID(str);
              System.out.print("srvcStatus id: " + srvcStatusData.getSrvcStatusID() + " ");
            } else if (((String) n).equalsIgnoreCase("srvcStatusTime")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              srvcStatusData.setSrvcStatusTime(str);
              System.out.print("srvcStatusTime : " + srvcStatusData.getSrvcStatusTime() + " ");
            } else if (((String) n).equalsIgnoreCase("srvcStatus")) {
              String str =
                  (b.getValue((String) n) == null) ? null : b.getValue((String) n).stringValue();
              srvcStatusData.setSrvcStatus(str);
              System.out.print("srvcStatusStatus : " + srvcStatusData.getSrvcStatus() + " ");
            }
          }
          serviceStatusDataList.add(srvcStatusData);
        } // while
        return serviceStatusDataList;
      } catch (QueryEvaluationException e) {
        e.printStackTrace();
        return null;
      } catch (Exception e) {
        e.printStackTrace();
        return null;
      }
    }
Ejemplo n.º 26
0
  private void compareTupleQueryResults(
      TupleQueryResult queryResult, TupleQueryResult expectedResult) throws Exception {
    // Create MutableTupleQueryResult to be able to re-iterate over the
    // results
    MutableTupleQueryResult queryResultTable = new MutableTupleQueryResult(queryResult);
    MutableTupleQueryResult expectedResultTable = new MutableTupleQueryResult(expectedResult);

    boolean resultsEqual;
    if (laxCardinality) {
      resultsEqual = QueryResultUtil.isSubset(queryResultTable, expectedResultTable);
    } else {
      resultsEqual = QueryResultUtil.equals(queryResultTable, expectedResultTable);

      if (checkOrder) {
        // also check the order in which solutions occur.
        queryResultTable.beforeFirst();
        expectedResultTable.beforeFirst();

        while (queryResultTable.hasNext()) {
          BindingSet bs = queryResultTable.next();
          BindingSet expectedBs = expectedResultTable.next();

          if (!bs.equals(expectedBs)) {
            resultsEqual = false;
            break;
          }
        }
      }
    }

    if (!resultsEqual) {
      queryResultTable.beforeFirst();
      expectedResultTable.beforeFirst();

      /*
       * StringBuilder message = new StringBuilder(128);
       * message.append("\n============ "); message.append(getName());
       * message.append(" =======================\n");
       * message.append("Expected result: \n"); while
       * (expectedResultTable.hasNext()) {
       * message.append(expectedResultTable.next()); message.append("\n");
       * } message.append("============="); StringUtil.appendN('=',
       * getName().length(), message);
       * message.append("========================\n");
       * message.append("Query result: \n"); while
       * (queryResultTable.hasNext()) {
       * message.append(queryResultTable.next()); message.append("\n"); }
       * message.append("============="); StringUtil.appendN('=',
       * getName().length(), message);
       * message.append("========================\n");
       */

      List<BindingSet> queryBindings = Iterations.asList(queryResultTable);

      List<BindingSet> expectedBindings = Iterations.asList(expectedResultTable);

      List<BindingSet> missingBindings = new ArrayList<BindingSet>(expectedBindings);
      missingBindings.removeAll(queryBindings);

      List<BindingSet> unexpectedBindings = new ArrayList<BindingSet>(queryBindings);
      unexpectedBindings.removeAll(expectedBindings);

      StringBuilder message = new StringBuilder(128);
      message.append("\n============ ");
      message.append(getName());
      message.append(" =======================\n");

      if (!missingBindings.isEmpty()) {

        message.append("Missing bindings: \n");
        for (BindingSet bs : missingBindings) {
          message.append(bs);
          message.append("\n");
        }

        message.append("=============");
        StringUtil.appendN('=', getName().length(), message);
        message.append("========================\n");
      }

      if (!unexpectedBindings.isEmpty()) {
        message.append("Unexpected bindings: \n");
        for (BindingSet bs : unexpectedBindings) {
          message.append(bs);
          message.append("\n");
        }

        message.append("=============");
        StringUtil.appendN('=', getName().length(), message);
        message.append("========================\n");
      }

      if (checkOrder && missingBindings.isEmpty() && unexpectedBindings.isEmpty()) {
        message.append("Results are not in expected order.\n");
        message.append(" =======================\n");
        message.append("query result: \n");
        for (BindingSet bs : queryBindings) {
          message.append(bs);
          message.append("\n");
        }
        message.append(" =======================\n");
        message.append("expected result: \n");
        for (BindingSet bs : expectedBindings) {
          message.append(bs);
          message.append("\n");
        }
        message.append(" =======================\n");

        System.out.print(message.toString());
      }

      logger.error(message.toString());
      fail(message.toString());
    }
    /*
     * debugging only: print out result when test succeeds else {
     * queryResultTable.beforeFirst();
     *
     * List<BindingSet> queryBindings = Iterations.asList(queryResultTable);
     * StringBuilder message = new StringBuilder(128);
     *
     * message.append("\n============ "); message.append(getName());
     * message.append(" =======================\n");
     *
     * message.append(" =======================\n");
     * message.append("query result: \n"); for (BindingSet bs:
     * queryBindings) { message.append(bs); message.append("\n"); }
     *
     * System.out.print(message.toString()); }
     */
  }
Ejemplo n.º 27
0
  public static TestSuite suite(String manifestFileURL, Factory factory, boolean approvedOnly)
      throws Exception {
    logger.info("Building test suite for {}", manifestFileURL);

    TestSuite suite = new TestSuite(factory.getClass().getName());

    // Read manifest and create declared test cases
    Repository manifestRep = new SailRepository(new MemoryStore());
    manifestRep.initialize();
    RepositoryConnection con = manifestRep.getConnection();

    ManifestTest.addTurtle(con, new URL(manifestFileURL), manifestFileURL);

    suite.setName(getManifestName(manifestRep, con, manifestFileURL));

    // Extract test case information from the manifest file. Note that we
    // only
    // select those test cases that are mentioned in the list.
    StringBuilder query = new StringBuilder(512);
    query.append(
        " SELECT DISTINCT testURI, testName, resultFile, action, queryFile, defaultGraph, ordered ");
    query.append(" FROM {} rdf:first {testURI} ");
    if (approvedOnly) {
      query.append("                          dawgt:approval {dawgt:Approved}; ");
    }
    query.append("                             mf:name {testName}; ");
    query.append("                             mf:result {resultFile}; ");
    query.append("                             [ mf:checkOrder {ordered} ]; ");
    query.append("                             [ mf:requires {Requirement} ];");
    query.append("                             mf:action {action} qt:query {queryFile}; ");
    query.append("                                               [qt:data {defaultGraph}]; ");
    query.append("                                               [sd:entailmentRegime {Regime} ]");

    // skip tests involving CSV result files, these are not query tests
    query.append(" WHERE NOT resultFile LIKE \"*.csv\" ");
    // skip tests involving JSON, sesame currently does not have a
    // SPARQL/JSON
    // parser.
    query.append(" AND NOT resultFile LIKE \"*.srj\" ");
    // skip tests involving entailment regimes
    query.append(" AND NOT BOUND(Regime) ");
    // skip test involving basic federation, these are tested separately.
    query.append(" AND (NOT BOUND(Requirement) OR (Requirement != mf:BasicFederation)) ");
    query.append(" USING NAMESPACE ");
    query.append("  mf = <http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#>, ");
    query.append("  dawgt = <http://www.w3.org/2001/sw/DataAccess/tests/test-dawg#>, ");
    query.append("  qt = <http://www.w3.org/2001/sw/DataAccess/tests/test-query#>, ");
    query.append("  sd = <http://www.w3.org/ns/sparql-service-description#>, ");
    query.append("  ent = <http://www.w3.org/ns/entailment/> ");
    TupleQuery testCaseQuery = con.prepareTupleQuery(QueryLanguage.SERQL, query.toString());

    query.setLength(0);
    query.append(" SELECT graph ");
    query.append(" FROM {action} qt:graphData {graph} ");
    query.append(" USING NAMESPACE ");
    query.append(" qt = <http://www.w3.org/2001/sw/DataAccess/tests/test-query#>");
    TupleQuery namedGraphsQuery = con.prepareTupleQuery(QueryLanguage.SERQL, query.toString());

    query.setLength(0);
    query.append("SELECT 1 ");
    query.append(" FROM {testURI} mf:resultCardinality {mf:LaxCardinality}");
    query.append(
        " USING NAMESPACE mf = <http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#>");
    TupleQuery laxCardinalityQuery = con.prepareTupleQuery(QueryLanguage.SERQL, query.toString());

    logger.debug("evaluating query..");
    TupleQueryResult testCases = testCaseQuery.evaluate();
    while (testCases.hasNext()) {
      BindingSet bindingSet = testCases.next();

      URI testURI = (URI) bindingSet.getValue("testURI");
      String testName = bindingSet.getValue("testName").toString();
      String resultFile = bindingSet.getValue("resultFile").toString();
      String queryFile = bindingSet.getValue("queryFile").toString();
      URI defaultGraphURI = (URI) bindingSet.getValue("defaultGraph");
      Value action = bindingSet.getValue("action");
      Value ordered = bindingSet.getValue("ordered");

      logger.debug("found test case : {}", testName);

      // Query named graphs
      namedGraphsQuery.setBinding("action", action);
      TupleQueryResult namedGraphs = namedGraphsQuery.evaluate();

      DatasetImpl dataset = null;

      if (defaultGraphURI != null || namedGraphs.hasNext()) {
        dataset = new DatasetImpl();

        if (defaultGraphURI != null) {
          dataset.addDefaultGraph(defaultGraphURI);
        }

        while (namedGraphs.hasNext()) {
          BindingSet graphBindings = namedGraphs.next();
          URI namedGraphURI = (URI) graphBindings.getValue("graph");
          logger.debug(" adding named graph : {}", namedGraphURI);
          dataset.addNamedGraph(namedGraphURI);
        }
      }

      // Check for lax-cardinality conditions
      boolean laxCardinality = false;
      laxCardinalityQuery.setBinding("testURI", testURI);
      TupleQueryResult laxCardinalityResult = laxCardinalityQuery.evaluate();
      try {
        laxCardinality = laxCardinalityResult.hasNext();
      } finally {
        laxCardinalityResult.close();
      }

      // if this is enabled, Sesame passes all tests, showing that the
      // only
      // difference is the semantics of arbitrary-length
      // paths
      /*
       * if (!laxCardinality) { // property-path tests always with lax
       * cardinality because Sesame filters out duplicates by design if
       * (testURI.stringValue().contains("property-path")) {
       * laxCardinality = true; } }
       */

      // check if we should test for query result ordering
      boolean checkOrder = false;
      if (ordered != null) {
        checkOrder = Boolean.parseBoolean(ordered.stringValue());
      }

      SPARQLQueryTest test =
          factory.createSPARQLQueryTest(
              testURI.toString(),
              testName,
              queryFile,
              resultFile,
              dataset,
              laxCardinality,
              checkOrder);
      if (test != null) {
        suite.addTest(test);
      }
    }

    testCases.close();
    con.close();

    manifestRep.shutDown();
    logger.info("Created test suite with " + suite.countTestCases() + " test cases.");
    return suite;
  }
Ejemplo n.º 28
0
  public void test_query() throws Exception {

    final BigdataSail sail = getSail();

    try {

      sail.initialize();

      if (!((BigdataSail) sail).database.getStatementIdentifiers()) {

        log.warn("Statement identifiers are not enabled");

        return;
      }

      /*
       * Load data into the sail.
       */
      {
        final DataLoader dataLoader = sail.database.getDataLoader();

        dataLoader.loadData(
            "/com/bigdata/rdf/sail/provenance01.ttlx",
            "" /*baseURL*/,
            ServiceProviderHook.TURTLE_RDR);
      }

      /*
       * Serialize as RDF/XML.
       *
       * Note: This is just for debugging.
       */
      if (log.isInfoEnabled()) {

        final BigdataStatementIterator itr = sail.database.getStatements(null, null, null);
        final String rdfXml;
        try {

          final Writer w = new StringWriter();

          //                final RDFXMLWriter rdfWriter = new RDFXMLWriter(w);
          final RDFWriterFactory writerFactory =
              RDFWriterRegistry.getInstance().get(RDFFormat.RDFXML);

          assertNotNull(writerFactory);

          final RDFWriter rdfWriter = writerFactory.getWriter(w);

          rdfWriter.startRDF();

          while (itr.hasNext()) {

            final BigdataStatementImpl stmt = (BigdataStatementImpl) itr.next();

            // only write the explicit statements.
            if (!stmt.isExplicit()) continue;

            rdfWriter.handleStatement(stmt);
          }

          rdfWriter.endRDF();

          rdfXml = w.toString();

        } finally {

          itr.close();
        }

        // write the rdf/xml
        log.info(rdfXml);
      }

      final SailConnection conn = sail.getConnection();

      try {

        final URI y = new URIImpl("http://www.foo.org/y");

        final URI B = new URIImpl("http://www.foo.org/B");

        final URI dcCreator = new URIImpl("http://purl.org/dc/terms/creator");

        final Literal bryan = new LiteralImpl("bryan");

        final Literal mike = new LiteralImpl("mike");

        /*
         * This is a hand-coded query.
         *
         * Note: When statement identifiers are enabled, the only way to
         * bind the context position is to already have a statement on hand -
         * there is no index which can be used to look up a statement by its
         * context and the context is always a blank node.
         */

        //            final TupleExpr tupleExpr =
        //                new Projection(
        //                new Join(//
        //                    new StatementPattern(//
        //                            new Var("X", y),//
        //                            new Var("1", RDF.TYPE),//
        //                            new Var("2", B),//
        //                            new Var("SID")),// unbound.
        //                    new StatementPattern(//
        //                            new Var("SID"),//
        //                            new Var("3", dcCreator),//
        //                            new Var("Y"))),
        //                new ProjectionElemList(new ProjectionElem[] { new ProjectionElem( "Y"
        // )}));

        //            final String q = "select ?Y where { ?SID <"+dcCreator+"> ?Y . graph ?SID {
        // <"+y+"> <"+RDF.TYPE+"> <"+B+"> . } }";
        final String q =
            "select ?Y where { <<<"
                + y
                + "> <"
                + RDF.TYPE
                + "> <"
                + B
                + ">>> <"
                + dcCreator
                + "> ?Y . }";

        /*
         * Create a data set consisting of the contexts to be queried.
         *
         * Note: a [null] DataSet will cause context to be ignored when the
         * query is processed.
         */
        //            final DatasetImpl dataSet = null; //new DatasetImpl();
        //
        //            final BindingSet bindingSet = new QueryBindingSet();
        //
        //            final CloseableIteration<? extends BindingSet, QueryEvaluationException> itr =
        // conn
        //                    .evaluate(tupleExpr, dataSet, bindingSet, true/* includeInferred */);

        final TupleQuery tq =
            new BigdataSailRepository(sail)
                .getReadOnlyConnection()
                .prepareTupleQuery(QueryLanguage.SPARQL, q);

        final TupleQueryResult itr = tq.evaluate();

        if (log.isInfoEnabled()) log.info("Verifying query.");

        /*
         * These are the expected results for the query (the bindings for Y).
         */

        final Set<Value> expected = new HashSet<Value>();

        expected.add(bryan);

        expected.add(mike);

        /*
         * Verify that the query results is the correct solutions.
         */

        final int nresults = expected.size();

        try {

          int i = 0;

          while (itr.hasNext()) {

            final BindingSet solution = itr.next();

            if (log.isInfoEnabled()) log.info("solution[" + i + "] : " + solution);

            final Value actual = solution.getValue("Y");

            assertTrue("Not expecting Y=" + actual, expected.remove(actual));

            i++;
          }

          assertEquals("#results", nresults, i);

        } finally {

          itr.close();
        }

      } finally {

        conn.close();
      }

    } finally {

      sail.__tearDownUnitTest();
    }
  }
  protected void getTerms(
      Repository repos,
      String name,
      String uri,
      List<RDFSClass> classes,
      List<RDFSProperty> properties)
      throws VocabularyImportException {
    try {
      RepositoryConnection con = repos.getConnection();
      try {

        TupleQuery query =
            con.prepareTupleQuery(QueryLanguage.SPARQL, CLASSES_QUERY_P1 + uri + CLASSES_QUERY_P2);
        TupleQueryResult res = query.evaluate();

        Set<String> seen = new HashSet<String>();
        while (res.hasNext()) {
          BindingSet solution = res.next();
          String clazzURI = solution.getValue("resource").stringValue();
          if (seen.contains(clazzURI)) {
            continue;
          }
          seen.add(clazzURI);
          String label =
              getFirstNotNull(
                  new Value[] {solution.getValue("en_label"), solution.getValue("label")});
          String description =
              getFirstNotNull(
                  new Value[] {
                    solution.getValue("en_definition"),
                    solution.getValue("definition"),
                    solution.getValue("en_description"),
                    solution.getValue("description")
                  });
          RDFSClass clazz = new RDFSClass(clazzURI, label, description, name, uri);
          classes.add(clazz);
        }

        query =
            con.prepareTupleQuery(
                QueryLanguage.SPARQL, PROPERTIES_QUERY_P1 + uri + PROPERTIES_QUERY_P2);
        res = query.evaluate();
        seen = new HashSet<String>();
        while (res.hasNext()) {
          BindingSet solution = res.next();
          String propertyUri = solution.getValue("resource").stringValue();
          if (seen.contains(propertyUri)) {
            continue;
          }
          seen.add(propertyUri);
          String label =
              getFirstNotNull(
                  new Value[] {solution.getValue("en_label"), solution.getValue("label")});
          String description =
              getFirstNotNull(
                  new Value[] {
                    solution.getValue("en_definition"),
                    solution.getValue("definition"),
                    solution.getValue("en_description"),
                    solution.getValue("description")
                  });
          RDFSProperty prop = new RDFSProperty(propertyUri, label, description, name, uri);
          properties.add(prop);
        }

      } catch (Exception ex) {
        throw new VocabularyImportException(
            "Error while processing vocabulary retrieved from " + uri, ex);
      } finally {
        con.close();
      }
    } catch (RepositoryException ex) {
      throw new VocabularyImportException(
          "Error while processing vocabulary retrieved from " + uri, ex);
    }
  }
Ejemplo n.º 30
0
  /** Copied from org.openrdf.query.QueryResultUtil */
  private static boolean bindingSetsMatch(final BindingSet bs1, final BindingSet bs2) {

    if (bs1.size() != bs2.size()) {
      return false;
    }

    for (Binding binding1 : bs1) {
      Value value1 = binding1.getValue();
      Value value2 = bs2.getValue(binding1.getName());

      if ((value1 instanceof BNode) && (value2 instanceof BNode)) {
        // BNode mappedBNode = bNodeMapping.get(value1);
        //
        // if (mappedBNode != null) {
        // // bNode 'value1' was already mapped to some other bNode
        // if (!value2.equals(mappedBNode)) {
        // // 'value1' and 'value2' do not match
        // return false;
        // }
        // } else {
        // // 'value1' was not yet mapped, we need to check if 'value2'
        // // is a
        // // possible mapping candidate
        // if (bNodeMapping.containsValue(value2)) {
        // // 'value2' is already mapped to some other value.
        // return false;
        // }
        // }

        return value1.equals(value2);
      } else {
        // values are not (both) bNodes
        if ((value1 instanceof Literal) && (value2 instanceof Literal)) {
          // do literal value-based comparison for supported datatypes
          Literal leftLit = (Literal) value1;
          Literal rightLit = (Literal) value2;

          URI dt1 = leftLit.getDatatype();
          URI dt2 = rightLit.getDatatype();

          if ((dt1 != null)
              && (dt2 != null)
              && dt1.equals(dt2)
              && XMLDatatypeUtil.isValidValue(leftLit.getLabel(), dt1)
              && XMLDatatypeUtil.isValidValue(rightLit.getLabel(), dt2)) {
            Integer compareResult = null;
            if (dt1.equals(XMLSchema.DOUBLE)) {
              compareResult = Double.compare(leftLit.doubleValue(), rightLit.doubleValue());
            } else if (dt1.equals(XMLSchema.FLOAT)) {
              compareResult = Float.compare(leftLit.floatValue(), rightLit.floatValue());
            } else if (dt1.equals(XMLSchema.DECIMAL)) {
              compareResult = leftLit.decimalValue().compareTo(rightLit.decimalValue());
            } else if (XMLDatatypeUtil.isIntegerDatatype(dt1)) {
              compareResult = leftLit.integerValue().compareTo(rightLit.integerValue());
            } else if (dt1.equals(XMLSchema.BOOLEAN)) {
              Boolean leftBool = Boolean.valueOf(leftLit.booleanValue());
              Boolean rightBool = Boolean.valueOf(rightLit.booleanValue());
              compareResult = leftBool.compareTo(rightBool);
            } else if (XMLDatatypeUtil.isCalendarDatatype(dt1)) {
              XMLGregorianCalendar left = leftLit.calendarValue();
              XMLGregorianCalendar right = rightLit.calendarValue();

              compareResult = left.compare(right);
            }

            if (compareResult != null) {
              if (compareResult.intValue() != 0) {
                return false;
              }
            } else if (!value1.equals(value2)) {
              return false;
            }
          } else if (!value1.equals(value2)) {
            return false;
          }
        } else if (!value1.equals(value2)) {
          return false;
        }
      }
    }

    return true;
  }