}

            userCode = getUserCodeFromRequest(request);
            if (StringUtil.isNotBlank(userCode)) {
                return userCode;
            }

            if (!request.isRequestedSessionIdValid()) {
                return null;
            }

            userCode = getUserCodeFromCookie(request);
            if (StringUtil.isBlank(userCode)) {
                userCode = getUserCodeFromUserBean(request);