///<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);
}
