private void replaceStaffIdWithStaffName( final String staffIdStr, final String staffNameParamName, Map<String, Object> commandAsJsonMap) { Long staffId = null; if (StringUtils.isNotBlank(staffIdStr)) { staffId = Long.valueOf(staffIdStr); final StaffData officer = this.staffReadPlatformService.retrieveStaff(staffId); commandAsJsonMap.put(staffNameParamName, officer.getDisplayName()); } else { commandAsJsonMap.put(staffNameParamName, ""); } }