final Consumer<String[]> lazyLoading) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final Set<String> roleSet = new HashSet<>();

        if (fessConfig.isLdapRoleSearchUserEnabled()) {
            roleSet.add(normalizePermissionName(systemHelper.getSearchRoleByUser(ldapUser.getName())));
        }

        // LDAP: cn=%s
        // AD: (&(objectClass=user)(sAMAccountName=%s))