Esempio n. 1
0
  /**
   * Perform the {@link QueryExecution} once.
   *
   * @param action
   * @param queryExecution
   * @param query
   * @param queryStringLog Informational string created from the initial query.
   * @return
   */
  protected SPARQLResult executeQuery(
      HttpAction action, QueryExecution queryExecution, Query query, String queryStringLog) {
    setAnyTimeouts(queryExecution, action);

    if (query.isSelectType()) {
      ResultSet rs = queryExecution.execSelect();

      // Force some query execution now.
      // If the timeout-first-row goes off, the output stream has not
      // been started so the HTTP error code is sent.

      rs.hasNext();

      // If we wanted perfect query time cancellation, we could consume
      // the result now to see if the timeout-end-of-query goes off.
      // rs = ResultSetFactory.copyResults(rs) ;

      // action.log.info(format("[%d] exec/select", action.id)) ;
      return new SPARQLResult(rs);
    }

    if (query.isConstructType()) {
      Dataset dataset = queryExecution.execConstructDataset();
      // action.log.info(format("[%d] exec/construct", action.id));
      return new SPARQLResult(dataset);
    }

    if (query.isDescribeType()) {
      Model model = queryExecution.execDescribe();
      // action.log.info(format("[%d] exec/describe", action.id)) ;
      return new SPARQLResult(model);
    }

    if (query.isAskType()) {
      boolean b = queryExecution.execAsk();
      // action.log.info(format("[%d] exec/ask", action.id)) ;
      return new SPARQLResult(b);
    }

    ServletOps.errorBadRequest("Unknown query type - " + queryStringLog);
    return null;
  }
Esempio n. 2
0
  void runTestAsk(Query query, QueryExecution qe) throws Exception {
    boolean result = qe.execAsk();
    if (results != null) {
      if (results.isBoolean()) {
        boolean b = results.getBooleanResult();
        assertEquals("ASK test results do not match", b, result);
      } else {
        Model resultsAsModel = results.getModel();
        StmtIterator sIter =
            results.getModel().listStatements(null, RDF.type, ResultSetGraphVocab.ResultSet);
        if (!sIter.hasNext()) throw new QueryTestException("Can't find the ASK result");
        Statement s = sIter.nextStatement();
        if (sIter.hasNext()) throw new QueryTestException("Too many result sets in ASK result");
        Resource r = s.getSubject();
        Property p = resultsAsModel.createProperty(ResultSetGraphVocab.getURI() + "boolean");

        boolean x = r.getRequiredProperty(p).getBoolean();
        if (x != result) assertEquals("ASK test results do not match", x, result);
      }
    }
    return;
  }