return username;
        }
        // For guest users, use cookie-based userCode for session identification
        return ComponentUtil.getUserInfoHelper().getUserCode();
    }

    /**
     * Returns the maximum message length for chat messages.
     *
     * @param fessConfig the Fess configuration
     * @return the maximum message length
     */

        final String[] roles = ComponentUtil.getRoleQueryHelper().build(params.getType()).stream().toArray(n -> new String[n]);
        final String userCode = fessConfig.isUserInfo() ? ComponentUtil.getUserInfoHelper().getUserCode() : null;
        final String userId = ComponentUtil.getRequestManager().findUserBean(FessUserBean.class).map(FessUserBean::getUserId).orElse(null);

     *
     * @return the user code string, or null if no valid session exists
     */
    public String getUserCode() {
        return LaRequestUtil.getOptionalRequest().map(request -> {
            String userCode = (String) request.getAttribute(Constants.USER_CODE);
            if (StringUtil.isNotBlank(userCode)) {

        MockletHttpServletRequest request = getMockRequest();

        request.setAttribute(Constants.USER_CODE, "testUserCode");
        assertEquals("testUserCode", userInfoHelper.getUserCode());
    }

    @Test
    public void test_getUserCode_withValidRequestParameter() {
        UserInfoHelper userInfoHelper = new UserInfoHelper();
        MockletHttpServletRequest request = getMockRequest();