Package org.openrdf.query

Examples of org.openrdf.query.TupleQuery

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  {
    List<String> labels = new ArrayList<String>();
    RepositoryConnection con = repository.getConnection();
    try {
      assertTrue(con.size() > 0);
      TupleQuery qry = con.prepareTupleQuery(SPARQL, query);
      TupleResult result = qry.evaluate();
      try {
        while (result.hasNext()) {
          Value value = result.next().getValue(name);
          if (value == null) {
            labels.add(null);
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    query.setIncludeInferred(includeInferred);

    query.setMaxQueryTime(maxQueryTime);

    if (query instanceof TupleQuery) {
      TupleQuery tuple = (TupleQuery)query;
      tuple.setLimit(getQueryResultLimit());
    }

    return query;
  }
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    query.append("                                               [qt:data {defaultGraph}] ");
    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#>");
    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..");
    TupleResult 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");

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

      // Query named graphs
      namedGraphsQuery.setBinding("action", action);
      TupleResult 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");
          dataset.addNamedGraph(namedGraphURI);
        }
      }

      // Check for lax-cardinality conditions
      boolean laxCardinality = false;
      laxCardinalityQuery.setBinding("testURI", testURI);
      TupleResult laxCardinalityResult = laxCardinalityQuery.evaluate();
      try {
        laxCardinality = laxCardinalityResult.hasNext();
      }
      finally {
        laxCardinalityResult.close();
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  protected static String getManifestName(Repository manifestRep, RepositoryConnection con,
      String manifestFileURL)
    throws EvaluationException, StoreException, MalformedQueryException
  {
    // Try to extract suite name from manifest file
    TupleQuery manifestNameQuery = con.prepareTupleQuery(QueryLanguage.SERQL,
        "SELECT ManifestName FROM {ManifestURL} rdfs:label {ManifestName}");
    manifestNameQuery.setBinding("ManifestURL", con.getValueFactory().createURI(manifestFileURL));
    TupleResult manifestNames = manifestNameQuery.evaluate();
    try {
      if (manifestNames.hasNext()) {
        return manifestNames.next().getValue("ManifestName").stringValue();
      }
    }
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    RepositoryConnection conn = repository.getConnection();
    try {
      String chordataQuery = "SELECT DISTINCT * WHERE {<" + RNA_CHORDATA + "> ?P ?Y . } ";

      // first test: evaluate the query anonymously
      TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, chordataQuery);

      TupleResult tr = query.evaluate();
      try {
        assertFalse(
            "query result should be empty: item is protected and current user has no viewing permission",
            tr.hasNext());
      }
      finally {
        tr.close();
      }

      // second test: evaluate the query as an unauthorized user
      Session session = SessionManager.getOrCreate();
      session.setUsername("no_access");
      tr = query.evaluate();
      try {
        assertFalse(
            "query result should be empty: item is protected and current user has no viewing permission",
            tr.hasNext());
      }
      finally {
        tr.close();
      }

      // third test: evaluate the query as an authorized user
      session.setUsername("trezorix");
      tr = query.evaluate();
      try {
        assertTrue(
            "query result should not be empty: current user has viewing permission by inheritance",
            tr.hasNext());
      }
      finally {
        tr.close();
      }

      // fourth test: evaluate the query after user has logged out
      SessionManager.remove();
      tr = query.evaluate();
      try {
        assertFalse(
            "query result should be empty: item is protected and current user has no viewing permission",
            tr.hasNext());
      }
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    try {
      Session session = SessionManager.getOrCreate();
      session.setUsername("trezorix");

      String conceptQuery = "SELECT DISTINCT ?X WHERE {?X a <" + SKOS_NS + "Concept" + "> ; ?P ?Y . } ";
      TupleQuery query = con.prepareTupleQuery(QueryLanguage.SPARQL, conceptQuery);

      TupleResult tr = query.evaluate();
      System.out.println(query.toString());

      try {
        List<String> headers = tr.getBindingNames();

        boolean nsrRetrieved = false;
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  private Repository repository;

  public void testValueExceptionLessThan()
    throws Exception
  {
    TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, queryStr1);
    TupleResult evaluate = query.evaluate();
    try {
      assertFalse(evaluate.hasNext());
    }
    finally {
      evaluate.close();
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  }

  public void testValueExceptionEqual()
    throws Exception
  {
    TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, queryStr2);
    TupleResult evaluate = query.evaluate();
    try {
      assertFalse(evaluate.hasNext());
    }
    finally {
      evaluate.close();
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  }

  private void assertResult(String queryStr, List<String> names)
    throws StoreException, MalformedQueryException, EvaluationException
  {
    TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, queryStr);
    TupleResult result = query.evaluate();
    for (String name : names) {
      Value value = result.next().getValue("name");
      assertEquals(name, ((Literal)value).getLabel());
    }
    assertFalse(result.hasNext());
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  }

  private boolean evaluateSparql(String qry)
    throws StoreException, MalformedQueryException, EvaluationException
  {
    TupleQuery query = con.prepareTupleQuery(QueryLanguage.SPARQL, qry);
    TupleResult evaluate = query.evaluate();
    try {
      return evaluate.hasNext();
    }
    finally {
      evaluate.close();
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