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();

    protected String getUserId() {
        final String username = systemHelper.getUsername();
        if (!Constants.GUEST_USER.equals(username)) {
            return username;
        }
        return userInfoHelper.getUserCode();
    }