/**
  * getAllEmployeeReportForMonthByMonth(-) method takes month as a inputs and displays all
  * employees working details during given period of time.
  *
  * @throws Exception
  */
 @RequestMapping(
     value = "/getMonthlyProductivityOfAllEmployeeByMonth",
     method = RequestMethod.POST)
 public @ResponseBody String getMonthlyProductivityOfAllEmployeeByMonth(
     HttpServletRequest request, @RequestParam("month") String month) {
   logger.info("inside ReportGenerationController getMonthlyProductivityOfAllEmployeeByMonth()");
   logger.info("Month in getMonthlyProductivityOfAllEmployeeByMonth : " + month);
   if (HttpSessionUtility.verifySession(request, "adminId"))
     return reportGenerationService.getMonthlyProductivityOfAllEmployeeByMonth(month);
   else return JsonUtility.convertToJson("-1");
 }