public bool CheckAuthentication(string login, string password)
        {
            var user = _users.GetUserOrNull(login);

            if (user != null)
            {
                if (user.Password == password)
                {
                    return(true);
                }
            }

            return(false);
        }
        public override string[] GetRolesForUser(string login)
        {
            _logger.Info($"PL.{nameof(Provider)}.{nameof(GetRolesForUser)}: Get Role for user \"{login}\"");

            return(new string[] { _userBll.GetUserOrNull(login).Role.Name });
        }