code: @Override
      public final Map<String, Object> getParameters(
              HttpServletRequest request, HttpServletResponse response) {
          final PreferencesScope stylesheetPreferencesScope =
                  this.getStylesheetPreferencesScope(request);
  
          final LinkedHashMap<String, Object> stylesheetParameters =
                  new LinkedHashMap<String, Object>();
  
          this.stylesheetUserPreferencesService.populateStylesheetParameters(
                  request,
                  stylesheetPreferencesScope,
                  new MapPopulator<String, String>(stylesheetParameters));
  
          return stylesheetParameters;
      }
docs: /* (non-Javadoc)
  @see org.apereo.portal.rendering.xslt.TransformerConfigurationSource#getTransformerParameters(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)