///<summary>Sets IsProcessed to true on all eService signals of the passed in severity.</summary>
        public static void ProcessSignalsForSeverity(eServiceSignalSeverity severity)
        {
            if (RemotingClient.RemotingRole == RemotingRole.ClientWeb)
            {
                Meth.GetVoid(MethodBase.GetCurrentMethod(), severity);
                return;
            }
            string command = "UPDATE eservicesignal SET IsProcessed=1 WHERE Severity=" + POut.Int((int)severity);

            Db.NonQ(command);
            if (severity == eServiceSignalSeverity.Error)            //Delete corresponding alert.
            {
                AlertItems.DeleteFor(AlertType.EConnectorError);
            }
        }
        ///<summary>Inserts a healthy heartbeat.</summary>
        public static void InsertHeartbeatForService(eServiceCode serviceCode)
        {
            if (RemotingClient.RemotingRole == RemotingRole.ClientWeb)
            {
                Meth.GetVoid(MethodBase.GetCurrentMethod(), serviceCode);
                return;
            }
            AlertItems.DeleteFor(AlertType.EConnectorDown);
            string command = "SELECT * FROM eservicesignal WHERE ServiceCode=" + POut.Int((int)serviceCode)
                             + " AND Severity IN ("
                             + POut.Int((int)eServiceSignalSeverity.NotEnabled) + ","
                             + POut.Int((int)eServiceSignalSeverity.Working) + ","
                             + POut.Int((int)eServiceSignalSeverity.Critical)
                             + ") ORDER BY SigDateTime DESC " + DbHelper.LimitWhere(1);//only select not enabled, working, and critical statuses.
            EServiceSignal eServiceSignalLast = Crud.EServiceSignalCrud.SelectOne(command);
            DateTime       dtNow = MiscData.GetNowDateTime();

            //If initializing or changing state to working from not working, insert two signals; An anchor and a rolling timestamp.
            if (eServiceSignalLast == null || eServiceSignalLast.Severity != eServiceSignalSeverity.Working)          //First ever heartbeat or critical which was not previously critical.
            {
                if (eServiceSignalLast != null && eServiceSignalLast.Severity == eServiceSignalSeverity.Critical
                    //Do not create a signal if the eConnector was stopped because of an update
                    && (eServiceSignalLast.SigDateTime > UpdateHistories.GetLastUpdateHistory().DateTimeUpdated ||
                        UpdateHistories.GetLastUpdateHistory().DateTimeUpdated.AddMinutes(10) < dtNow))
                {
                    //Changing from critical to working so alert user that this change took place and tell them how long we were in critical state.
                    //Insert() will also insert Alert.
                    Insert(new EServiceSignal()
                    {
                        ServiceCode = (int)serviceCode, Severity = eServiceSignalSeverity.Error, SigDateTime = dtNow, IsProcessed = false, Description = "Listener was critical for " + DateTime.Now.Subtract(eServiceSignalLast.SigDateTime).ToStringHmm()
                    });
                }
                Insert(new EServiceSignal()
                {
                    ServiceCode = (int)serviceCode, Severity = eServiceSignalSeverity.Working, SigDateTime = dtNow, IsProcessed = true, Description = "Heartbeat Anchor"
                });                                                                                                                                                                                     //anchor heartbeat
                Insert(new EServiceSignal()
                {
                    ServiceCode = (int)serviceCode, Severity = eServiceSignalSeverity.Working, SigDateTime = dtNow.AddSeconds(1), IsProcessed = true, Description = "Heartbeat"
                });                                                                                                                                                                                            //rolling heartbeat
                return;
            }
            eServiceSignalLast.SigDateTime = dtNow;
            Update(eServiceSignalLast);
        }