Java 类com.hp.hpl.jena.query.QueryFactory 实例源码

public static boolean checkContainment(CompanyModel c){
    String queryString = 
        "ASK" +
            // check whether any manager is an employee in any other department
            "{?dept1"        + " <" + c.MANAGER   + "> " + "?manager"         + ". " +
            " ?dept2"        + " <" + c.EMPLOYEES + "> " + "?employees1"      + ". " +
            " ?employees1"   + " <" + RDFS.member + "> " + "?employee1"       + ". " +
            " FILTER (?manager = ?employee1) " +

            // check whether any employee occurs more than once
            " ?dept3 "       + " <" + c.EMPLOYEES + "> " + "?employees2"      + ". " +
            " ?employees2"   + " <" + RDFS.member + "> " + "?employee2"       + ". " +
            " FILTER (?employee1 = ?employee2)" +

            // check whether any department occurs more than once
            " ?upperDept1"   + " <" + c.DEPTS     + "> " + "?dept4"           + ". " +
            " ?upperDept2"   + " <" + c.DEPTS     + "> " + "?dept5"           + ". " +
            " FILTER (?dept4 = ?dept5) " +
            "}";

    Query query = QueryFactory.create(queryString);
    QueryExecution qe = QueryExecutionFactory.create(query, c.getModel());
    boolean out = qe.execAsk();
    qe.close();
    return !out;
}

private List<Statement> expandSubClasses(Model model){
    List<Statement> stmts = new ArrayList<Statement>();


    String sparql = "PREFIX rdfs: <" + RDFS.getURI() + ">"
            + "SELECT DISTINCT ?class ?synonym "
            + "WHERE { "
            + "?class rdfs:subClassOf+ ?subClass . "
            + "?subClass <" + synonym + "> ?synonym"
            + "}";

    Query query = QueryFactory.create(sparql, Syntax.syntaxARQ);
    QueryExecution queryExecution = QueryExecutionFactory.create(query, model);
    ResultSet resultSet = queryExecution.execSelect();
    resultSet.forEachRemaining(querySolution -> {
        stmts.add(new StatementImpl(querySolution.getResource("class"), synonym, querySolution.getLiteral("synonym")));
    });
    return stmts;
}

private List<Statement> expandSubProperties(Model model){
    List<Statement> stmts = new ArrayList<Statement>();

    String sparql = "PREFIX rdfs: <" + RDFS.getURI() + ">"
            + "SELECT DISTINCT ?property ?synonym "
            + "WHERE { "
            + "?property rdfs:subPropertyOf+ ?subProperty . "
            + "?subProperty <" + synonym + "> ?synonym"
            + "}";

    Query query = QueryFactory.create(sparql, Syntax.syntaxARQ);
    QueryExecution queryExecution = QueryExecutionFactory.create(query, model);
    ResultSet resultSet = queryExecution.execSelect();
    resultSet.forEachRemaining(querySolution -> {
        stmts.add(new StatementImpl(querySolution.getResource("property"), synonym, querySolution.getLiteral("synonym")));
    });
    return stmts;
}

public static void main(String[] args) {
    ModelD2RQ m = new ModelD2RQ("file:doc/example/mapping-iswc.ttl");
    String sparql = 
        "PREFIX dc: <http://purl.org/dc/elements/1.1/>" +
        "PREFIX foaf: <http://xmlns.com/foaf/0.1/>" +
        "SELECT ?paperTitle ?authorName WHERE {" +
        "    ?paper dc:title ?paperTitle . " +
        "    ?paper dc:creator ?author ." +
        "    ?author foaf:name ?authorName ." +
        "}";
    Query q = QueryFactory.create(sparql); 
    ResultSet rs = QueryExecutionFactory.create(q, m).execSelect();
    while (rs.hasNext()) {
        QuerySolution row = rs.nextSolution();
        System.out.println("Title: " + row.getLiteral("paperTitle").getString());
        System.out.println("Author: " + row.getLiteral("authorName").getString());
    }
    m.close();
}

public static void main(String[] args) {
    ModelD2RQ m = new ModelD2RQ("file:doc/example/mapping-iswc.ttl");
    String sparql = 
        "PREFIX dc: <http://purl.org/dc/elements/1.1/>" +
        "PREFIX foaf: <http://xmlns.com/foaf/0.1/>" +
        "SELECT ?paperTitle ?authorName WHERE {" +
        "    ?paper dc:title ?paperTitle . " +
        "    ?paper dc:creator ?author ." +
        "    ?author foaf:name ?authorName ." +
        "}";
    Query q = QueryFactory.create(sparql); 
    ResultSet rs = QueryExecutionFactory.create(q, m).execSelect();
    while (rs.hasNext()) {
        QuerySolution row = rs.nextSolution();
        System.out.println("Title: " + row.getLiteral("paperTitle").getString());
        System.out.println("Author: " + row.getLiteral("authorName").getString());
    }
    m.close();
}

private Set<String> getTypesFromSPARQL(String sparqlQueryString) {

        Query query = QueryFactory.create(sparqlQueryString);
        QueryExecution qexec = QueryExecutionFactory.sparqlService(this.endpoint, query);
        Set<String> types = new HashSet<>();

        ResultSet results = qexec.execSelect();
        while(results.hasNext()) {
            QuerySolution qs = results.next();
            Resource type = qs.getResource("?type");
            types.add(type.getURI());
        }

        qexec.close();
        return types;
    }

private void runQueryButtonActionPerformed(java.awt.event.ActionEvent evt) {// GEN-FIRST:event_runQueryButtonActionPerformed
    List<String> lines = null;
    try {
        lines = Files.readAllLines(queryPath);
    } catch (IOException ex) {
        Logger.getLogger(Ontogui.class.getName()).log(Level.SEVERE, null,
                ex);
    }
    String queryString = "";
    for (String line : lines) {
        queryString += line + System.lineSeparator();
    }
    Query query = QueryFactory.create(queryString, Syntax.syntaxARQ);
    queryResultArea.setText("Starting query: "
            + queryPath.toFile().getName() + "\n");
    Thread t = new Thread(new QueryProcessor(query, new QueryAreaStream(
            queryResultArea), dataset, checkbox1.getState()));
    t.start();
}

private void runSmellAnalysisButtonActionPerformed(
        java.awt.event.ActionEvent evt) {// GEN-FIRST:event_runSmellAnalysisButtonActionPerformed
    String filename = smellName;
    File smellFile = new File(System.getProperty("user.dir")
            + "/sparql/smells/" + filename.replaceAll(" ", "") + ".sparql");

    List<String> lines = null;

    try {
        lines = Files.readAllLines(smellFile.toPath());
    } catch (IOException ex) {
        Logger.getLogger(Ontogui.class.getName()).log(Level.SEVERE, null,
                ex);
    }
    String queryString = "";
    for (String line : lines) {
        queryString += line + System.lineSeparator();
    }
    Query query = QueryFactory.create(queryString, Syntax.syntaxARQ);
    queryResultArea.setText("Starting analysis: " + smellName + "\n");
    Thread t = new Thread(new QueryProcessor(query, new QueryAreaStream(
            queryResultArea), dataset, checkbox1.getState()));
    t.start();
}

private void runMetricsButtonActionPerformed(java.awt.event.ActionEvent evt) {// GEN-FIRST:event_runMetricsButtonActionPerformed
    String folder = metricName.split(":")[0].toLowerCase();
    String filename = metricName.split(":")[1];
    File metricFile = new File(System.getProperty("user.dir")
            + "/sparql/metrics/" + folder + "/" + filename + ".sparql");

    List<String> lines = null;

    try {
        lines = Files.readAllLines(metricFile.toPath());
    } catch (IOException ex) {
        Logger.getLogger(Ontogui.class.getName()).log(Level.SEVERE, null,
                ex);
    }
    String queryString = "";
    for (String line : lines) {
        queryString += line + System.lineSeparator();
    }
    Query query = QueryFactory.create(queryString, Syntax.syntaxARQ);
    queryResultArea.setText("Starting analysis:" + metricName + "\n");
    System.err.println(checkbox1.isEnabled());
    Thread t = new Thread(new QueryProcessor(query, new QueryAreaStream(
            queryResultArea), dataset, checkbox1.getState()));
    t.start();
}

@Test
public void testMetric_TotalBuilds() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_builds.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, buildsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long buildId = solution.getLiteral("total_builds").getLong();
            System.out.printf("Total builds: %d%n",buildId);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

@Test
public void testMetric_TotalExecutions_Global() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_executions_global.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, executionsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long total_executions = solution.getLiteral("total_executions").getLong();
            System.out.printf("Total executions: %d%n",total_executions);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

@Test
public void testMetric_TotalExecutions_PerBuild() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_executions_per_build.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, executionsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long total_executions = solution.getLiteral("total_executions").getLong();
            String buildId = shorten(solution.getResource("build").getURI());
            System.out.printf("Total executions of build %s: %d%n",buildId,total_executions);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

@Test
public void testMetric_TotalSuccesfulExecutions_Global() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_succesful_executions_global.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, executionsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long total_executions = solution.getLiteral("total_executions").getLong();
            System.out.printf("Total succesful executions: %d%n",total_executions);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

@Test
public void testMetric_TotalSuccesfulExecutions_Global_Period() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_succesful_executions_global_period.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, executionsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long total_executions = solution.getLiteral("total_executions").getLong();
            String day = solution.getLiteral("day").getString();
            System.out.printf("Total succesful executions [%s]: %d%n",day,total_executions);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

@Test
public void testMetric_TotalSuccesfulExecutions_PerBuild() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_succesful_executions_per_build.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, executionsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long total_executions = solution.getLiteral("total_executions").getLong();
            String buildId = shorten(solution.getResource("build").getURI());
            System.out.printf("Total succesful executions of build %s: %d%n",buildId,total_executions);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

@Test
public void testMetric_TotalBrokenExecutions_Global() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_broken_executions_global.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, executionsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long total_executions = solution.getLiteral("total_executions").getLong();
            System.out.printf("Total broken executions: %d%n",total_executions);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

@Test
public void testMetric_TotalBrokenExecutions_PerBuild() {
    Query query =
        QueryFactory.
            create(
                loadResource("/metrics/total_broken_executions_per_build.sparql"));
    QueryExecution queryExecution = null;
    try {
        queryExecution = QueryExecutionFactory.create(query, executionsDataSet());
        ResultSet results = queryExecution.execSelect();
        for(; results.hasNext();) {
            QuerySolution solution = results.nextSolution();
            long total_executions = solution.getLiteral("total_executions").getLong();
            String buildId = shorten(solution.getResource("build").getURI());
            System.out.printf("Total broken executions of build %s: %d%n",buildId,total_executions);
        }
    } finally {
        if (queryExecution != null) {
            queryExecution.close();
        }
    }
}

public String executeQuery() {

        Query query = QueryFactory.create(this.getQuery(), Syntax.syntaxARQ);

        Op op = Algebra.compile(query);

        try {

            if(new String("internal").equals(this.service)) {
                this.results = jenaService.runLocalOp(op);
            } else if (new String("external").equals(this.service)) {
                this.results = jenaService.runExternalOp(op);
            }

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
        }
        return ("success");
    }

/**
 * Run SPARQL query 
 * @param     uri  uri resource
 * @param     p  property
 * @return    results map: uri-s (if uri is a subject), uri-o (if uri is an object)
 */
private TObjectCharHashMap<String> runQuery(String uri, String p){

    TObjectCharHashMap<String> results = new TObjectCharHashMap<String>();

    Query query;
    String q;

    q = "SELECT * WHERE {{?s " + p + " <" + uri + ">. FILTER isIRI(?s). } UNION " +
                        "{<" + uri + "> " + p + " ?o ." + " FILTER isIRI(?o). }} ";

    logger.debug(q);

    try 
    {   
        query = QueryFactory.create(q);
        results = executeQuery(query, p);
    } 
    catch (Exception e) 
    {
        e.printStackTrace();
    }

    return results;
}

/**
 * Run SPARQL query 
 * @param     uri  resource uri
 * @param     p  property
 * @return    results map: uri-s (if uri is a subject), uri-o (if uri is an object)
 */
private TObjectByteHashMap<String> runQuery(String uri, String p){

    TObjectByteHashMap<String> results = new TObjectByteHashMap<String>();

    Query query;
    String q;

    q = "SELECT * WHERE {{?s " + p + " <" + uri + ">. FILTER isIRI(?s). } UNION " +
                        "{<" + uri + "> " + p + " ?o ." + " FILTER isIRI(?o). }} ";

    logger.debug(q);

    try {   
        query = QueryFactory.create(q);
        results = executeQuery(query, p);
    } 
    catch (Exception e) {
        e.printStackTrace();
    }

    return results;
}

public String getRedirect(final String entityUri) {
    final String query = "SELECT ?types WHERE{ <" + entityUri
            + "> <http://dbpedia.org/ontology/wikiPageRedirects> ?types. }";
    ResultSet results = null;
    QueryExecution qexec = null;
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        qexec = QueryExecutionFactory.create(cquery, redirects);
        results = qexec.execSelect();
    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    } finally {
        if (results != null) {
            while (results.hasNext()) {
                final QuerySolution sol = results.nextSolution();
                final String type = sol.getResource("types").toString();
                return type;
            }
        }
    }
    return null;
}

private String checkAvailability(String resource) {
    try {
        Query query = QueryFactory
                .create("SELECT ?label WHERE{ <"
                        + resource
                        + "> <http://www.w3.org/2000/01/rdf-schema#label> ?label. }");
        QueryExecution qe = QueryExecutionFactory.create(query, this.m_l);
        ResultSet results = qe.execSelect();
        if (results.hasNext()) {
            return resource;
        }
    } catch (Exception e) {
        return "";
    }
    return "";
}

private String checkRedirects(String resource) {
    String result = resource;
    try {

        Query query = QueryFactory
                .create("SELECT ?redirect WHERE{ <"
                        + resource
                        + "> <http://dbpedia.org/ontology/wikiPageRedirects> ?redirect. }");
        QueryExecution qe = QueryExecutionFactory.create(query, this.m);
        ResultSet results = qe.execSelect();
        while (results.hasNext()) {
            QuerySolution sol = results.nextSolution();
            result = sol.getResource("redirect").getURI();
        }
    } catch (Exception e) {
        return resource;
    }
    return result;
}

private String checkAvailability(String resource) {
    try {
        Query query = QueryFactory
                .create("SELECT ?label WHERE{ <"
                        + resource
                        + "> <http://www.w3.org/2000/01/rdf-schema#label> ?label. }");
        QueryExecution qe = QueryExecutionFactory.create(query, this.m_l);
        ResultSet results = qe.execSelect();
        if (results.hasNext()) {
            return resource;
        }
    } catch (Exception e) {
        return "";
    }
    return "";
}

private String checkRedirects(String resource) {
    String result = resource;
    try {

        Query query = QueryFactory
                .create("SELECT ?redirect WHERE{ <"
                        + resource
                        + "> <http://dbpedia.org/ontology/wikiPageRedirects> ?redirect. }");
        QueryExecution qe = QueryExecutionFactory.create(query, this.m);
        ResultSet results = qe.execSelect();
        while (results.hasNext()) {
            QuerySolution sol = results.nextSolution();
            result = sol.getResource("redirect").getURI();
        }
    } catch (Exception e) {
        return resource;
    }
    return result;
}

private Set<String> queryEntitiesFromCategory(final String catUri) {
    Set<String> set = new HashSet<String>();
    final String query = "SELECT ?entities WHERE{ ?entities <http://purl.org/dc/terms/subject> <"
            + catUri + ">. }";
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        final QueryExecution qexec = QueryExecutionFactory
                .create(cquery, m);
        final ResultSet results = qexec.execSelect();
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            set.add(sol.getResource("entities").getURI()
                    .replaceAll("http://dbpedia.org/resource/", ""));
        }

    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return set;
}

private String queryEntitiesFromCategory(final String catUri) {
    String res = null;

    final String query = "SELECT ?entities WHERE{ ?entities <http://purl.org/dc/terms/subject> <"
            + catUri + ">. }";
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        final QueryExecution qexec = QueryExecutionFactory
                .create(cquery, m);
        final ResultSet results = qexec.execSelect();
        List<String> entities = new LinkedList<String>();
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            entities.add(sol.getResource("entities").getURI());
        }
        if (entities.size() != 0) {
            int randomNr = this.random.nextInt(entities.size());
            return entities.get(randomNr);
        }

    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return res;
}

private boolean hasSubCategory(String uri) {
    final String query = "SELECT ?entities WHERE{ ?types <http://www.w3.org/2004/02/skos/core#broader> <"
            + uri + ">. }";
    boolean hasSubtype = false;
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        final QueryExecution qexec = QueryExecutionFactory
                .create(cquery, skosModel);
        final ResultSet results = qexec.execSelect();
        while (results.hasNext()) {
            hasSubtype = true;
            break;
        }

    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return hasSubtype;
}

private Set<String> queryEntitiesFromCategory(final String catUri) {
    Set<String> set = new HashSet<String>();
    final String query = "SELECT ?entities WHERE{ ?entities <http://purl.org/dc/terms/subject> <"
            + catUri + ">. }";
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        final QueryExecution qexec = QueryExecutionFactory
                .create(cquery, m);
        final ResultSet results = qexec.execSelect();
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            set.add(sol.getResource("entities").getURI()
                    .replaceAll("http://dbpedia.org/resource/", ""));
        }

    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return set;
}

private String queryEntitiesFromCategory(final String catUri) {
    String res = null;

    final String query = "SELECT ?entities WHERE{ ?entities <http://purl.org/dc/terms/subject> <"
            + catUri + ">. }";
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        final QueryExecution qexec = QueryExecutionFactory
                .create(cquery, m);
        final ResultSet results = qexec.execSelect();
        List<String> entities = new LinkedList<String>();
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            entities.add(sol.getResource("entities").getURI());
        }
        if (entities.size() != 0) {
            int randomNr = this.random.nextInt(entities.size());
            return entities.get(randomNr);
        }

    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return res;
}

private String getRedirect(String uri) {
    final Model model = DisambiguationMainService.getInstance().getDBpediaRedirects();
    final String query = "SELECT ?label WHERE{ <" + uri
            + "> <http://dbpedia.org/ontology/wikiPageRedirects> ?label. }";
    ResultSet results = null;
    QueryExecution qexec = null;
    String redirect = null;
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory.create(query);
        qexec = QueryExecutionFactory.create(cquery, model);
        results = qexec.execSelect();
    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    } finally {
        if (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            redirect = sol.getResource("label").getURI();
        }
    }
    return redirect;
}

public static Set<Type> getRDFTypesFromEntity(final String entityUri) {
    Set<Type> set = new HashSet<Type>();
    final Model model = DisambiguationMainService.getInstance().getDBPediaInstanceTypes();
    final String query = "SELECT ?types WHERE{ <" + entityUri
            + "> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ?types. }";
    ResultSet results = null;
    QueryExecution qexec = null;
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        qexec = QueryExecutionFactory.create(cquery, model);
        results = qexec.execSelect();
    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    } finally {
        if (results != null) {
            while (results.hasNext()) {
                final QuerySolution sol = results.nextSolution();
                final String type = sol.getResource("types").toString();
                set.add(new Type("", type, true, 0));
            }
        }
    }
    return set;
}

public static String getDbPediaDescription(final String uri)
        throws QueryException {
    String res = null;
    final Model model = DisambiguationMainService.getInstance()
            .getDBPediaDescription();
    final String query = "SELECT ?description WHERE{ <" + uri
            + "> <http://dbpedia.org/ontology/abstract> ?description. }";
    ResultSet results = null; // NOPMD by quh on 14.02.14 10:04
    QueryExecution qexec = null;
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        qexec = QueryExecutionFactory.create(cquery, model);
        results = qexec.execSelect();
    } finally {
        if ((results != null) && results.hasNext()) {
            res = results.nextSolution().getLiteral("description")
                    .getString();
        }
        if (qexec != null) {
            qexec.close();
        }
    }
    return res;
}

public static List<String> getDbPediaLabel(final String uri)
        throws QueryException {
    final List<String> labellist = new LinkedList<String>();

    final Model model = DisambiguationMainService.getInstance()
            .getDBPediaLabels();
    final String query = "SELECT ?label WHERE{ <" + uri
            + "> <http://www.w3.org/2000/01/rdf-schema#label> ?label. }";
    ResultSet results = null; // NOPMD by quh on 14.02.14 10:04
    QueryExecution qexec = null;

    final com.hp.hpl.jena.query.Query cquery = QueryFactory.create(query);
    qexec = QueryExecutionFactory.create(cquery, model);
    results = qexec.execSelect();

    if (results != null) {
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            final String label = sol.getLiteral("label").getLexicalForm();
            labellist.add(label);
        }
        qexec.close();
    }
    return labellist;
}

public static List<String> getDbPediaLabel_GER(final String uri)
        throws QueryException {
    final List<String> labellist = new LinkedList<String>();

    final Model model = DisambiguationMainService.getInstance()
            .getDBPediaLabels_GER();
    final String query = "SELECT ?label WHERE{ <" + uri
            + "> <http://www.w3.org/2000/01/rdf-schema#label> ?label. }";
    ResultSet results = null; // NOPMD by quh on 14.02.14 10:04
    QueryExecution qexec = null;

    final com.hp.hpl.jena.query.Query cquery = QueryFactory.create(query);
    qexec = QueryExecutionFactory.create(cquery, model);
    results = qexec.execSelect();

    if (results != null) {
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            final String label = sol.getLiteral("label").getLexicalForm();
            labellist.add(label);
        }
        qexec.close();
    }
    return labellist;
}

private static String queryDbPediaCategoryLabel(final String catUri) {
    String res = null;
    final Model model = DisambiguationMainService.getInstance()
            .getDBPediaCategoryLabels();

    final String query = "SELECT ?label WHERE{ <" + catUri
            + "> <http://www.w3.org/2000/01/rdf-schema#label> ?label. }";
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        final QueryExecution qexec = QueryExecutionFactory.create(cquery,
                model);
        final ResultSet results = qexec.execSelect(); // NOPMD by quh on
                                                        // 18.02.14 15:05
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            final String name = sol.getLiteral("label").getLexicalForm();
            res = name;
        }
    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return res;
}

private static String queryDbPediaCategoryLabel_GER(final String catUri) {
    String res = null;
    final Model model = DisambiguationMainService.getInstance()
            .getDBPediaCategoryLabels_GER();

    final String query = "SELECT ?label WHERE{ <" + catUri
            + "> <http://www.w3.org/2000/01/rdf-schema#label> ?label. }";
    try {
        final com.hp.hpl.jena.query.Query cquery = QueryFactory
                .create(query);
        final QueryExecution qexec = QueryExecutionFactory.create(cquery,
                model);
        final ResultSet results = qexec.execSelect(); // NOPMD by quh on
                                                        // 18.02.14 15:05
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            final String name = sol.getLiteral("label").getLexicalForm();
            // RDFHack ToDo: Inform how to resolve the dbpedia tql files correctly

            res = name;
        }
    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return res;
}

public static List<Type> queryYagoCategories(final String uri) {
    final Model model = DisambiguationMainService.getInstance()
            .getYagoTransitiveTypes();

    final List<Type> types = new LinkedList<Type>();
    final String query = "SELECT ?type WHERE{ <"
            + uri
            + "> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ?type. }";
    try {
        final com.hp.hpl.jena.query.Query que = QueryFactory.create(query);
        final QueryExecution qexec = QueryExecutionFactory.create(que,
                model);
        final ResultSet results = qexec.execSelect(); // NOPMD by quh on
                                                        // 18.02.14 15:05
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            final String name = sol.getResource("type").toString();
            types.add(new Type("", name, true, 0));
        }
    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return types;
}

private static String queryYagoCategoryLabel(final String catUri) {
    String res = null;
    final Model model = DisambiguationMainService.getInstance()
            .getYagoCategoryLabels();

    final String query = "SELECT ?label WHERE{ <" + catUri
            + "> <http://www.w3.org/2004/02/skos/core#> ?label. }";
    try {
        final com.hp.hpl.jena.query.Query que = QueryFactory.create(query);
        final QueryExecution qexec = QueryExecutionFactory.create(que,
                model);
        final ResultSet results = qexec.execSelect(); // NOPMD by quh on
                                                        // 18.02.14 15:05
        while (results.hasNext()) {
            final QuerySolution sol = results.nextSolution();
            final String name = sol.getLiteral("label").getLexicalForm();
            res = name;
        }
    } catch (final QueryException e) {
        Logger.getRootLogger().error(e.getStackTrace());
    }
    return res;
}

public List<String> getDbPediaLabel(final String uri) throws QueryException, QueryParseException {
    final List<String> labellist = new LinkedList<String>();
    try {
        final String query = "SELECT ?label WHERE{ <" + uri
                + "> <http://www.w3.org/2000/01/rdf-schema#label> ?label. }";
        ResultSet results = null;
        QueryExecution qexec = null;

        final com.hp.hpl.jena.query.Query cquery = QueryFactory.create(query);
        qexec = QueryExecutionFactory.create(cquery, this.labelmodel);
        results = qexec.execSelect();

        if (results != null) {
            while (results.hasNext()) {
                final QuerySolution sol = results.nextSolution();
                final String label = sol.getLiteral("label").getLexicalForm();
                labellist.add(label);
            }
            qexec.close();
        }
    } catch (QueryParseException e) {
        Logger.getRootLogger().info("Query parse Exception");
    }
    return labellist;
}