CgwMonitorManage.Service.SessionManage.Instance C# (CSharp) Method

        public static SessionManage Instance()
        {
            if (instance == null)
            {
                lock (sessionLock)
                {
                    instance = new SessionManage();
                }
            }

            return instance;
        }

        /// <summary>
        /// 断开监控管理连接
        /// </summary>
        /// <returns></returns>
        public SmcErr Disconnect()
        {
            NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
            SmcErr          err   = new CgwError();

            if (OperationContext.Current != null)
            {
                //string strSessionId = OperationContext.Current.SessionId;
                string strSessionId = currentSessionID;
                if (!string.IsNullOrEmpty(strSessionId))
                {
                    err = SessionManage.Instance().RemoveSessionBySessionId(strSessionId);
                    logEx.Info("Client DisConnect MonitorManageService Successful,Current.Cgw IP is : {0}", CgwConst.ClientIp);
                }
                else
                {
                    err.SetErrorNo(CgwError.ERR_CGW_BUSINESS_CURRENTSESSION_NULL);
                    logEx.Warn("Current SessionId is null ! ");
                }
            }
            else
            {
                err.SetErrorNo(CgwError.ERR_CGW_BUSINESS_CURRENTSESSION_NULL);
                logEx.Warn("Current SessionId is null ! ");
            }

            return(err);
        }