/// <summary>
        /// Client 로 전문 보내기
        /// </summary>
        /// <param name="sendEventArgs">보낼 SAEA 객체</param>
        /// <param name="packetName">옵션 : 특정전문 지정</param>
        /// <param name="userId">옵션 : 사용자 ID</param>
        /// <param name="message">옵션 : 메세지</param>
        internal void SendMessageToClient(SocketAsyncEventArgs sendEventArgs, MessagePacketNameEnum packetName = MessagePacketNameEnum.EMPTY, string userId = "")
        {
            DataHoldingUserToken sendToken = (DataHoldingUserToken)sendEventArgs.UserToken;
            MessageStream        response  = null;

            /// 전문 생성
            response = messageParsing.GetResponse(sendEventArgs, packetName, userId);
            if (response == null)
            {
                return;
            }

            /// 버퍼로 복사
            int readByteAll = response.ReadAll(ref sendToken.dataToSend, this.socketListenerSettings.BufferSize);

            this.SendMessage(sendEventArgs);
        }