Example #1
0
  public static Method create(QuerySolution qs) throws Exception {
    Resource id = (Resource) qs.get("x");
    Literal fullPath = (Literal) qs.get("fullPath");
    Literal name = (Literal) qs.get("name");
    Literal accessModifier = (Literal) qs.get("accessModifier");
    Literal lineStart = (Literal) qs.get("line_start");
    Literal lineEnd = (Literal) qs.get("line_end");
    Resource returnType = (Resource) qs.get("returnType");
    Resource hasParameter = (Resource) qs.get("hasParameter");
    Resource throwsException = (Resource) qs.get("throwsException");
    Resource belongsTo = (Resource) qs.get("belongsTo");

    Method meth = new Method(id.toString(), name.getValue().toString());
    meth.setAccessModifier(accessModifier.getValue().toString());
    meth.setFullPath(fullPath.getValue().toString());
    meth.setLineStart(lineStart.getInt());
    meth.setLineEnd(lineEnd.getInt());
    meth.setReturnType(returnType.toString());
    if (hasParameter != null) {
      meth.setHasParameter(hasParameter.toString());
    }
    if (throwsException != null) {
      meth.setThrowsException(throwsException.toString());
    }
    meth.setBelongsTo(belongsTo.toString());

    return meth;
  }
Example #2
0
  private static Set<Property> getPermissions(String userPrefix, String username, String uri) {
    Set<Property> permissions = new HashSet<Property>();
    Resource resource = configModel.createResource(uri);
    Resource user;
    if (username == null) user = PERM.Public;
    else user = configModel.createResource(userPrefix + username);

    StmtIterator stmts = configModel.listStatements(user, null, resource);
    while (stmts.hasNext()) permissions.add(stmts.next().getPredicate());

    String queryString = "";
    queryString += "PREFIX perm: <http://vocab.ox.ac.uk/perm#>\n";
    queryString += "SELECT ?perm ?regex WHERE {\n";
    queryString += "  <" + user.getURI() + "> ?perm ?rm .";
    queryString += "  ?rm a perm:ResourceMatch ;";
    queryString += "      perm:matchExpression ?regex }";

    com.hp.hpl.jena.query.Query query = QueryFactory.create(queryString);
    QueryExecution qexec = QueryExecutionFactory.create(query, configModel);
    ResultSet results = qexec.execSelect();
    while (results.hasNext()) {
      QuerySolution sol = results.next();
      if (uri.matches(((Literal) sol.get("regex")).getLexicalForm()))
        permissions.add(configModel.createProperty(((Resource) sol.get("perm")).getURI()));
    }

    if (username != null) permissions.addAll(getPermissions(userPrefix, null, uri));
    return permissions;
  }
Example #3
0
  @Override
  public List<String> executeSparqlSet(List<SparqlCandidate> sparqlCandidates)
      throws QueryParseException, QueryException {

    List<String> results = new ArrayList<String>();

    for (SparqlCandidate candidate : sparqlCandidates) {

      logger.info("Start: " + candidate.getSparqlQuery());

      ResultSet rs = endpointConnector.executeQuery(candidate.getSparqlQuery());

      logger.debug(candidate + " returns results:");

      while (rs.hasNext()) {
        QuerySolution qs = rs.next();
        if (qs.get("variable") != null) {
          String new_variable = qs.get("variable").toString();
          logger.debug(new_variable);
          if (!results.contains(new_variable)) results.add(new_variable);
        }
      }
    }

    return results;
  }
 public String sparql(String qry) {
   Model model = ModelFactory.createDefaultModel();
   try {
     model.read(new FileInputStream("D:/AI Project/harsh/myNew.owl"), null, "RDF");
   } catch (FileNotFoundException e) {
     e.printStackTrace();
   }
   String res = null;
   String res1 = null;
   Query query = QueryFactory.create(qry);
   QueryExecution exec = QueryExecutionFactory.create(query, model);
   try {
     ResultSet rs = exec.execSelect();
     while (rs.hasNext()) {
       QuerySolution soln = rs.nextSolution();
       // res = soln.get("dn").toString();
       res = soln.get("dn").toString();
       System.out.println(res);
       System.out.println("HAS");
       res1 = soln.get("rn").toString();
       System.out.println(res1);
     }
   } finally {
     exec.close();
   }
   return res;
 }
  private Map<String, Integer> getStats(String sparqlQuery, QueryExecutionFactory qef) {
    Map<String, Integer> stats = new HashMap<>();

    QueryExecution qe = null;
    try {
      qe = qef.createQueryExecution(sparqlQuery);
      ResultSet results = qe.execSelect();

      while (results.hasNext()) {
        QuerySolution qs = results.next();

        String s = qs.get("stats").toString();
        int c = 0;
        if (qs.contains("count")) {
          c = qs.get("count").asLiteral().getInt();
        }
        stats.put(s, c);
      }
    } finally {
      if (qe != null) {
        qe.close();
      }
    }

    return stats;
  }
  public static int getDataMatrix(Model model) {
    String sparqlQuery =
        String.format(
            "PREFIX ot:<%s>\n"
                + "PREFIX isa:<%s>\n"
                + "PREFIX dcterms:<http://purl.org/dc/terms/>\n"
                + "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n"
                + "PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n"
                + "SELECT ?node ?feature ?title ?value where {\n"
                + "	?node rdf:type isa:Data."
                + "	?feature ot:hasSource ?node."
                + "	?feature dcterms:title ?title."
                + "	?fv ot:feature ?feature."
                + "	?fv ot:value ?value."
                + "} ORDER by ?node ?sample \n",
            OT.NS, ISA.URI);

    // Hashtable<String,Hashtable<String,String>> lookup = new Hashtable<String,
    // Hashtable<String,String>>();

    Query query = QueryFactory.create(sparqlQuery);
    QueryExecution qe = QueryExecutionFactory.create(query, model);
    ResultSet rs = qe.execSelect();
    int row = 0;
    while (rs.hasNext()) {
      QuerySolution qs = rs.next();
      RDFNode node = qs.get("node");
      RDFNode feature = qs.get("feature");
      RDFNode title = qs.get("title");
      RDFNode value = qs.get("value");
      row++;
    }
    return row; // lookup;
  }
Example #7
0
  @Test
  public void testNextWithLiteral() throws Exception {
    when(mockValue.getString()).thenReturn("x");
    final QuerySolution solution = testObj.next();

    assertTrue(solution.contains("a"));
    assertEquals("x", solution.get("a").asLiteral().getLexicalForm());
    assertEquals(solution.get("a"), solution.getLiteral("a"));
  }
 private void processPoint(QuerySolution solution, StringBuilder builder) {
   double lat = solution.get("lat").asLiteral().getDouble();
   double longitude = solution.get("long").asLiteral().getDouble();
   builder.append(lat).append(" ").append(longitude).append(",");
   if (this.firstLat == null && this.firstLong == null) {
     this.firstLat = lat;
     this.firstLong = longitude;
   }
 }
 public static EConcept getEConcept(QuerySolution qs, Model model) {
   EConcept con = new EConcept();
   String uri = qs.get("?concept").toString().trim();
   String id = model.getResource(uri).getLocalName();
   String name = qs.get("?c_name").toString().trim();
   con.setCid(id);
   con.setName(StringExchanger.getCommonString(name));
   return con;
 }
Example #10
0
  @Test
  public void testNextWithLiteralDate() throws Exception {
    when(mockValue.getType()).thenReturn(PropertyType.DATE);
    final Calendar date = Calendar.getInstance();
    when(mockValue.getDate()).thenReturn(date);
    final QuerySolution solution = testObj.next();

    assertNotNull(solution.get("a").asLiteral());
    assertEquals(XSDDatatype.XSDdateTime.getURI(), solution.get("a").asLiteral().getDatatypeURI());
  }
Example #11
0
  @Test
  public void testNextWithResource() throws Exception {
    when(mockValue.getType()).thenReturn(PropertyType.PATH);
    when(mockValue.getString()).thenReturn("/x");
    when(mockGraphSubjects.getSubject("/x")).thenReturn(ResourceFactory.createResource("info:x"));
    final QuerySolution solution = testObj.next();

    assertTrue(solution.contains("a"));
    assertEquals("info:x", solution.get("a").asResource().getURI());
    assertEquals(solution.get("a"), solution.getResource("a"));
  }
Example #12
0
  public Item(String uri, ResultSet set, String s, String p, String o) {
    this.uri = uri;
    values = new ArrayList<Prop>();

    while (set.hasNext()) {
      QuerySolution result = set.nextSolution();
      String relation = result.get(p).toString();
      String value = result.get(o).toString();
      values.add(new Prop(relation, value, result.get(o).isLiteral(), false));
    }
  }
  @Override
  public Iterator<Quad> find(Node graph, Node subject, Node predicate, Node object) {
    if (!isVar(subject) && !isVar(predicate) && !isVar(object) && !isVar(graph)) {
      if (contains(subject, predicate, object, graph)) {
        return new SingletonIterator(new Triple(subject, predicate, object));
      } else {
        return WrappedIterator.create(Collections.EMPTY_LIST.iterator());
      }
    }
    StringBuffer findQuery = new StringBuffer("SELECT * WHERE { \n");
    String graphURI = !isVar(graph) ? graph.getURI() : null;
    findQuery.append("  GRAPH ");
    if (graphURI != null) {
      findQuery.append("  <" + graphURI + ">");
    } else {
      findQuery.append("?g");
    }
    findQuery.append(" { ");
    findQuery
        .append(SparqlGraph.sparqlNode(subject, "?s"))
        .append(" ")
        .append(SparqlGraph.sparqlNode(predicate, "?p"))
        .append(" ")
        .append(SparqlGraph.sparqlNode(object, "?o"));
    findQuery.append("  } ");
    findQuery.append("\n}");

    // log.info(findQuery.toString());

    ResultSet rs = null;

    try {
      rs =
          JSONInput.fromJSON(
              rdfService.sparqlSelectQuery(findQuery.toString(), RDFService.ResultFormat.JSON));
    } catch (RDFServiceException rdfse) {
      throw new RuntimeException(rdfse);
    }

    List<Quad> quadlist = new ArrayList<Quad>();
    while (rs.hasNext()) {
      QuerySolution soln = rs.nextSolution();
      Quad q =
          new Quad(
              isVar(graph) ? soln.get("?g").asNode() : graph,
              isVar(subject) ? soln.get("?s").asNode() : subject,
              isVar(predicate) ? soln.get("?p").asNode() : predicate,
              isVar(object) ? soln.get("?o").asNode() : object);
      // log.info(t);
      quadlist.add(q);
    }
    // log.info(triplist.size() + " results");
    return WrappedIterator.create(quadlist.iterator());
  }
Example #14
0
  @Override
  public List<String> executeSparql(String query) throws QueryParseException, QueryException {

    ResultSet rs = endpointConnector.executeQuery(query);
    List<String> results = new ArrayList<String>();

    while (rs.hasNext()) {
      QuerySolution qs = rs.next();
      if (qs.get("variable") != null) results.add(qs.get("variable").toString());
    }

    return results;
  }
 public static ISCB_Resource getEResource(QuerySolution qs, Model model) {
   ISCB_Resource res = new ISCB_Resource();
   String uri = qs.get("?resource").toString().trim();
   String id = model.getResource(uri).getLocalName();
   String name = qs.get("?r_name").toString().trim();
   String difficulty = qs.get("?r_difficulty").toString().trim();
   String fileLocation = qs.get("?r_fileLocation").toString().trim();
   res.setRid(id);
   res.setName(StringExchanger.getCommonString(name));
   res.setDifficulty(StringExchanger.getCommonString(difficulty));
   res.setFileLocation(StringExchanger.getCommonString(fileLocation));
   return res;
 }
  public void deleteProperty(String yourInstance, String yourProperty) {

    // 查找属性URI
    String sparqlProperty =
        "SELECT ?property WHERE{?property <http://www.w3.org/2000/01/rdf-schema#label> '"
            + yourProperty
            + "'@zh.}";
    ResultSet resultsProperty = Result(sparqlProperty);
    QuerySolution solutionProperty = null;
    while (resultsProperty.hasNext()) solutionProperty = resultsProperty.next();
    // System.out.println(sparqlProperty);
    // System.out.println(solutionProperty.get("?property"));

    // 查找属性值
    String sparqlPropertyValue =
        "SELECT ?propertyValue WHERE{<http://www.semanticweb.org/administrator/ontologies/2015/6/untitled-ontology-31#'"
            + yourInstance
            + "'@zh> <"
            + solutionProperty.get("?property")
            + "> "
            + "?propertyValue}";
    ResultSet resultsPropertyValue = Result(sparqlPropertyValue);
    QuerySolution solutionPropertyValue = null;
    while (resultsPropertyValue.hasNext()) solutionPropertyValue = resultsPropertyValue.next();
    // System.out.println(sparqlPropertyValue);
    // System.out.println(solutionPropertyValue.get("?propertyValue"));

    String string1 = solutionPropertyValue.toString();
    int i = string1.length();
    i = i - 2;
    String string2 = (String) string1.subSequence(19, i);
    System.out.println(string2);

    // 删除实例属性
    String sparqlDeleteProperty =
        "delete data{<http://www.semanticweb.org/administrator/ontologies/2015/6/untitled-ontology-31#'"
            + yourInstance
            + "'@zh> <"
            + solutionProperty.get("?property")
            + "> "
            + string2
            + "}";
    // System.out.println(sparqlDeleteProperty);

    UpdateRequest updateProperty = UpdateFactory.create(sparqlDeleteProperty);
    UpdateProcessor qexecProperty =
        UpdateExecutionFactory.createRemote(updateProperty, UPDATE_SERVER);
    qexecProperty.execute();
  }
 public static ELearner getELearner(QuerySolution qs, Model model) {
   ELearner el = new ELearner();
   String uri = qs.get("?elearner").toString().trim();
   String id = model.getResource(uri).getLocalName();
   String name = qs.get("?el_name").toString().trim();
   String grade = qs.get("?el_grade").toString().trim();
   String email = qs.get("?el_email").toString().trim();
   String address = qs.get("?el_address").toString().trim();
   el.setId(id);
   el.setName(StringExchanger.getCommonString(name));
   el.setGrade(StringExchanger.getCommonString(grade));
   el.setEmail(StringExchanger.getCommonString(email));
   el.setAddress(StringExchanger.getCommonString(address));
   return el;
 }
Example #18
0
  /**
   * Selects a triple by providing an RDFStatement object collection
   *
   * @param stmts
   * @return Query result
   */
  public List<RDFStatement> selectTriples(Collection<? extends RDFStatement> stmts) {

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

    RDFStatement rdfs = stmts.stream().findFirst().get();
    String si = rdfs.getSubject(),
        pi = rdfs.getPredicate(),
        oi = rdfs.getObject(); // doesnt get value

    StringBuilder sb = new StringBuilder();
    stmts
        .stream()
        .forEach(
            s -> {
              s.setObject(RDFUtils.escapeString(s.getObject()));
              sb.append(s.getSubject())
                  .append(" ")
                  .append(s.getPredicate())
                  .append(" ")
                  .append(s.getObject())
                  .append(" .\n");
            });
    String query =
        String.format(
            this.defaultPrefices + "SELECT * FROM <%s> WHERE { %s }",
            this.graphName,
            sb.toString());
    Query sparqlQuery = QueryFactory.create(query);
    VirtuosoQueryExecution vqe = VirtuosoQueryExecutionFactory.create(sparqlQuery, this.graph);
    List<RDFStatement> stmtsList = new ArrayList<>();
    ResultSet rs = vqe.execSelect();
    while (rs.hasNext()) {
      QuerySolution qs = rs.nextSolution();
      RDFNode s = qs.get(si);
      RDFNode p = qs.get(pi);
      RDFNode o = qs.get(oi);
      RDFStatement stmt =
          new RDFStatement(
              s != null ? s.toString() : "null",
              p != null ? p.toString() : "null",
              o != null ? RDFUtils.escapeString(o.toString()) : "null");
      stmtsList.add(stmt);
      logger.info("fetched: {}", stmt.toString());
    }
    return stmtsList;
  }
  private int getMaxRank(String objectUri, String subjectUri, VitroRequest vreq) {

    int maxRank = 0; // default value
    if (objectUri == null) { // adding new webpage
      String queryStr = QueryUtils.subUriForQueryVar(MAX_RANK_QUERY, "subject", subjectUri);
      log.debug("Query string is: " + queryStr);
      try {
        ResultSet results = QueryUtils.getQueryResults(queryStr, vreq);
        if (results != null && results.hasNext()) { // there is at most one result
          QuerySolution soln = results.next();
          RDFNode node = soln.get("rank");
          if (node != null && node.isLiteral()) {
            // node.asLiteral().getInt() won't return an xsd:string that
            // can be parsed as an int.
            int rank = Integer.parseInt(node.asLiteral().getLexicalForm());
            if (rank > maxRank) {
              log.debug("setting maxRank to " + rank);
              maxRank = rank;
            }
          }
        }
      } catch (NumberFormatException e) {
        log.error("Invalid rank returned from query: not an integer value.");
      } catch (Exception e) {
        log.error(e, e);
      }
    }
    return maxRank;
  }
  /**
   * Query SPARQL endpoint with a SELECT query
   *
   * @param qExec QueryExecution encapsulating the query
   * @return model retrieved by querying the endpoint
   */
  private Model getSelectModel(QueryExecution qExec) {
    Model model = ModelFactory.createDefaultModel();
    Graph graph = model.getGraph();
    ResultSet results = qExec.execSelect();

    while (results.hasNext()) {
      QuerySolution sol = results.next();
      String subject;
      String predicate;
      RDFNode object;

      try {
        subject = sol.getResource("s").toString();
        predicate = sol.getResource("p").toString();
        object = sol.get("o");
      } catch (NoSuchElementException e) {
        logger.error("SELECT query does not return a (?s ?p ?o) Triple");
        continue;
      }

      Node objNode;
      if (object.isLiteral()) {
        Literal obj = object.asLiteral();
        objNode = NodeFactory.createLiteral(obj.getString(), obj.getDatatype());
      } else {
        objNode = NodeFactory.createLiteral(object.toString());
      }

      graph.add(
          new Triple(NodeFactory.createURI(subject), NodeFactory.createURI(predicate), objNode));
    }

    return model;
  }
  @Override
  public List<Literal> getDataPropertyValuesForIndividualByProperty(
      String subjectUri, String propertyUri) {
    log.debug("Data property value query string:\n" + DATA_PROPERTY_VALUE_QUERY_STRING);
    log.debug("Data property value:\n" + dataPropertyValueQuery);

    QuerySolutionMap initialBindings = new QuerySolutionMap();
    initialBindings.add("subject", ResourceFactory.createResource(subjectUri));
    initialBindings.add("property", ResourceFactory.createResource(propertyUri));

    // Run the SPARQL query to get the properties
    List<Literal> values = new ArrayList<Literal>();
    DatasetWrapper w = dwf.getDatasetWrapper();
    Dataset dataset = w.getDataset();
    dataset.getLock().enterCriticalSection(Lock.READ);
    try {
      QueryExecution qexec =
          QueryExecutionFactory.create(dataPropertyValueQuery, dataset, initialBindings);
      ResultSet results = qexec.execSelect();

      while (results.hasNext()) {
        QuerySolution soln = results.next();
        RDFNode node = soln.get("value");
        if (!node.isLiteral()) {
          continue;
        }
        Literal value = soln.getLiteral("value");
        values.add(value);
      }
    } finally {
      dataset.getLock().leaveCriticalSection();
      w.close();
    }
    return values;
  }
  public Map<String, List<RDFNode>> queryModel(
      String queryString, List<String> queryVariables, VirtDataset virtDataset) {
    Map<String, List<RDFNode>> solution = new HashMap<String, List<RDFNode>>();
    QueryExecution qexec = null;
    try {
      qexec = QueryExecutionFactory.create(queryString, virtDataset);
      // ResultSet rs = executeQuery(sb.toString(), virtDataset);
    } catch (com.hp.hpl.jena.query.QueryParseException e) {
      System.err.println(ExceptionUtils.getStackTrace(e) + "\n Will return an empty map...");
      return Collections.EMPTY_MAP;
    }

    ResultSet results = qexec.execSelect();
    while (results.hasNext()) {
      QuerySolution sol = results.next();
      for (String variable : queryVariables) {

        RDFNode nodeVar = sol.get(variable);
        if (nodeVar != null) {
          if (solution.get(variable) == null) {
            solution.put(variable, new ArrayList<RDFNode>());
          }
          solution.get(variable).add(nodeVar);
        }
      }
    }

    return solution;
  }
  // This is the inference method for getting data from OWL file
  public String sparqlInferenceMethod(String qry) {

    OntModel ont = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM_MICRO_RULE_INF, null);
    try {
      ont.read(
          new FileInputStream(
              //	"D:/AI Project/harsh/myNew.owl"),
              "SmartHospital.owl"),
          null,
          "RDF");
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    }

    Reasoner reasoner = ReasonerRegistry.getOWLMicroReasoner();
    reasoner = reasoner.bindSchema(ont);

    Dataset dataset = TDBFactory.createDataset();
    Model model = dataset.getDefaultModel();

    InfModel infModel = ModelFactory.createInfModel(reasoner, model);
    String disease = null;
    String hospital = null;
    String hospitalCode = null;
    StringBuilder res = new StringBuilder();
    Query query = QueryFactory.create(qry);
    QueryExecution exec = QueryExecutionFactory.create(query, infModel);
    try {
      System.out.println("here");
      ResultSet rs = exec.execSelect();
      while (rs.hasNext()) {
        QuerySolution soln = rs.nextSolution();
        disease = soln.get("dn").toString();
        hospital = soln.get("hn").toString();
        hospitalCode = soln.get("hc").toString();
      }
    } finally {
      exec.close();
    }

    res.append(disease);
    res.append("::");
    res.append(hospital);
    res.append("::");
    res.append(hospitalCode);
    return res.toString();
  }
Example #24
0
  @SuppressWarnings("unchecked")
  private static List<RDFNode> getURIObjects() {
    List<RDFNode> objectsURIs = new ArrayList<RDFNode>();
    if (demo) { // Deserialize the results if exists (For Demo purpose)
      if (useCache) {
        try {
          List<String> ser = new ArrayList<String>();
          File file = new File("URIObjects.ser");
          if (file.exists()) {
            ObjectInputStream in;
            in = new ObjectInputStream(new FileInputStream(file));
            ser = (List<String>) in.readObject();
            in.close();
            // convert every object back from string
            for (String n : ser) {
              objectsURIs.add(ResourceFactory.createResource(n));
            }
            return objectsURIs;
          }
        } catch (Exception e) {
          e.printStackTrace();
        }
      }
    }

    // create a query to retrieve URIs objects
    String queryString =
        "SELECT * "
            + "WHERE { ?s ?p ?o . FILTER (isURI(?o)) . "
            + "FILTER (STRSTARTS(STR(?o), \""
            + resourcePrefix
            + "\"))}";

    Query query = QueryFactory.create(queryString);
    QueryExecution exec = QueryExecutionFactory.create(query, localModel);
    ResultSet rs = exec.execSelect();
    while (rs.hasNext()) {
      QuerySolution sol = rs.next();
      RDFNode object = sol.get("?o");
      objectsURIs.add(object);
    }
    if (demo) { // serialize the output (for Demo purpose)
      try {
        FileOutputStream fileOut = new FileOutputStream("URIObjects.ser");
        ObjectOutputStream out = new ObjectOutputStream(fileOut);
        // convert to Serializabe Strings
        List<String> l = new ArrayList<String>();
        for (RDFNode n : objectsURIs) {
          l.add(n.toString());
        }
        out.writeObject(l);
        out.close();
      } catch (Exception e2) {
        e2.printStackTrace();
      }
    }

    return objectsURIs;
  }
Example #25
0
 public static Map<String, RDFNode> solutionMap(QuerySolution qs, List<String> vars) {
   Map<String, RDFNode> result = new HashMap<String, RDFNode>();
   for (String var : vars) {
     RDFNode val = qs.get(var);
     result.put(var, val.isAnon() ? DUMMY_FOR_BNODE : val);
   }
   return result;
 }
Example #26
0
 public static JSONObject buildAnswerBoxFeatures(String uri) {
   JSONObject document = new JSONObject();
   document.put("URI", new JsonString(uri));
   Set<RDFNode> set = Sets.newHashSet();
   try {
     String query =
         "select ?thumbnail ?abstract ?comment ?label"
             + "where {"
             + "<"
             + uri
             + "> <http://dbpedia.org/ontology/thumbnail> ?thumbnail;"
             + "<http://dbpedia.org/ontology/abstract> ?abstract;"
             + "<http://www.w3.org/2000/01/rdf-schema#label> ?label;"
             + "<http://www.w3.org/2000/01/rdf-schema#comment> ?comment."
             + "FILTER(langMatches(lang(?abstract), \"EN\") &&"
             + "          langMatches(lang(?label), \"EN\") &&"
             + "          langMatches(lang(?comment), \"EN\"))"
             + "}";
     QueryExecution qe = qef.createQueryExecution(query);
     if (qe != null && query.toString() != null) {
       ResultSet results = qe.execSelect();
       while (results.hasNext()) {
         QuerySolution next = results.next();
         RDFNode thumbnail = next.get("thumbnail");
         RDFNode abstractLiteral = next.get("abstract");
         RDFNode commentLiteral = next.get("comment");
         RDFNode labelLiteral = next.get("label");
         if (thumbnail != null) {
           document.put("thumbnail", new JsonString(thumbnail.asResource().getURI()));
         }
         if (abstractLiteral != null) {
           document.put("abstract", new JsonString(abstractLiteral.asLiteral().getString()));
         }
         if (commentLiteral != null) {
           document.put("comment", new JsonString(commentLiteral.asLiteral().getString()));
         }
         if (labelLiteral != null) {
           document.put("label", new JsonString(labelLiteral.asLiteral().getString()));
         }
       }
     }
   } catch (Exception e) {
     log.error("Cannot ask DBpedia for verbose description of " + uri, e);
   }
   return document;
 }
Example #27
0
  @Test
  public void testNextWithURI() throws Exception {
    when(mockValue.getType()).thenReturn(PropertyType.URI);
    when(mockValue.getString()).thenReturn("info:xyz");
    final QuerySolution solution = testObj.next();

    assertEquals("info:xyz", solution.get("a").asResource().getURI());
  }
Example #28
0
  @Test
  public void testNextWithLiteralLong() throws Exception {
    when(mockValue.getType()).thenReturn(PropertyType.LONG);
    when(mockValue.getLong()).thenReturn(1L);
    final QuerySolution solution = testObj.next();

    assertEquals(1L, solution.get("a").asLiteral().getLong());
  }
Example #29
0
  @Test
  public void testNextWithLiteralDouble() throws Exception {
    when(mockValue.getType()).thenReturn(PropertyType.DOUBLE);
    when(mockValue.getDouble()).thenReturn(1.0);
    final QuerySolution solution = testObj.next();

    assertEquals(1.0, solution.get("a").asLiteral().getDouble(), 0.1);
  }
Example #30
0
  @Test
  public void testNextWithLiteralBoolean() throws Exception {
    when(mockValue.getType()).thenReturn(PropertyType.BOOLEAN);
    when(mockValue.getString()).thenReturn("true");
    final QuerySolution solution = testObj.next();

    assertEquals("true", solution.get("a").asLiteral().getLexicalForm());
  }