@Override
  protected void doRequest(VitroRequest vreq, HttpServletResponse resp)
      throws ServletException, IOException {
    DeveloperSettings settings = DeveloperSettings.getBean(vreq);

    /*
     * Are they allowed to control the panel?
     */
    if (isAuthorized(vreq)) {
      // Update the settings.
      settings.updateFromRequest(vreq.getParameterMap());
    } else {
      log.debug("Not authorized to update settings.");
    }

    /*
     * Build the response.
     */
    try {
      Map<String, Object> bodyMap = buildBodyMap(isAuthorized(vreq), settings);
      String rendered = renderTemplate(vreq, bodyMap);
      resp.getWriter().write(rendered);
    } catch (Exception e) {
      doError(resp, e.toString(), 500);
    }
  }