assertEquals("testUserCode", userInfoHelper.getUserCode());
    }

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

        request.setParameter("userCode", "12345abcde12345ABCDE");
        assertEquals("12345abcde12345ABCDE", userInfoHelper.getUserCode());
    }

            return redirect(ErrorAction.class);
        }

        if (fessConfig.isSearchLog()) {
            final String userSessionId = userInfoHelper.getUserCode();
            if (userSessionId != null) {
                final SearchLogHelper searchLogHelper = ComponentUtil.getSearchLogHelper();
                final ClickLog clickLog = new ClickLog();

                    .ifPresent(doc -> {
                        final String favoriteUrl = DocumentUtil.getValue(doc, fessConfig.getIndexFieldUrl(), String.class);
                        final String userCode = userInfoHelper.getUserCode();

                        if (StringUtil.isBlank(userCode)) {
                            throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "No user session.");
                        }

     *
     * @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)) {

        final SearchLog searchLog = new SearchLog();

        if (fessConfig.isUserInfo()) {
            final String userCode = userInfoHelper.getUserCode();
            if (userCode != null) {
                searchLog.setUserSessionId(userCode);
                searchLog.setUserInfo(getUserInfo(userCode));
            }
        }