/**
  * @param map : holds require attributes
  * @param request :for getting session
  * @return: to the specified path
  * @throws QuestionBankSystemException: handle all system related exceptions
  * @throws QuestionBankException: handle all runtime exceptions
  */
 @RequestMapping(value = "/logout")
 public String logoutUser(Map<String, Object> map, HttpServletRequest request)
     throws QuestionBankSystemException, QuestionBankException {
   userService.doSetupForPage(map, ""); // do setup for page
   map = userService.logoutUser(map, request); // for logging out user
   map = userService.getDummyData(map, 1, 5, null);
   return "home"; // redirecting to home page
 }