コード例 #1
0
  @Override
  protected Actions requiredActions(VitroRequest vreq) {

    /*
     * Based on the query parameters passed via URI get the appropriate visualization
     * request handler.
     * */
    VisualizationRequestHandler visRequestHandler = getVisualizationRequestHandler(vreq);

    if (visRequestHandler != null) {

      Actions requiredPrivileges = visRequestHandler.getRequiredPrivileges();
      if (requiredPrivileges != null) {
        return requiredPrivileges;
      }
    }

    return super.requiredActions(vreq);
  }
コード例 #2
0
  private Object renderVisualization(
      VitroRequest vitroRequest, VisualizationRequestHandler visRequestHandler) {

    Model model = vitroRequest.getJenaOntModel(); // getModel()
    if (model == null) {

      String errorMessage =
          "This service is not supporeted by the current "
              + "webapp configuration. A jena model is required in the "
              + "servlet context.";

      log.error(errorMessage);

      return UtilityFunctions.handleMalformedParameters(
          "Visualization Query Error", errorMessage, vitroRequest);
    }

    Dataset dataset = setupJENADataSource(vitroRequest);

    if (dataset != null && visRequestHandler != null) {

      try {
        return visRequestHandler.generateAjaxVisualization(vitroRequest, log, dataset);
      } catch (MalformedQueryParametersException e) {
        return UtilityFunctions.handleMalformedParameters(
            "Ajax Visualization Query Error - Individual Publication Count",
            e.getMessage(),
            vitroRequest);
      }

    } else {

      String errorMessage =
          "Data Model Empty &/or Inappropriate " + "query parameters were submitted. ";

      log.error(errorMessage);

      return UtilityFunctions.handleMalformedParameters(
          "Visualization Query Error", errorMessage, vitroRequest);
    }
  }