private void Retry(TransportOperationMachine startingPoint)
{
LogService.Log(LogType.System, LogMessageType.Debug, GetType().Name,
string.Format(CultureInfo.InvariantCulture, "Retrying Tray move at '{0}'.", startingPoint.Station.Name));
NumberOfRetries--;
// Dispose of the old machines.
DisposeSubmachines();
// Create new first machine to execute.
InitializeSubmachine(startingPoint.Operation);
// Restart execution of whichever machine died, but don't raise the Started event.
switch (startingPoint.Operation)
{
case TransportOperation.BeginPickup:
BeginPickupMachine.Execute();
break;
case TransportOperation.CompletePickup:
CompletePickupMachine.Execute();
break;
case TransportOperation.BeginDropoff:
BeginDropoffMachine.Execute();
break;
case TransportOperation.CompleteDropoff:
CompleteDropoffMachine.Execute();
break;
}
}
/// <summary>
/// Initialize one of the four transport operation machine types. Both Pick-up machines have
/// CanStop turned off because there are no circumstances where a Pick-up operation can be
/// stopped, even though the TrayMover as a whole can be stopped during pick-up. Both
/// Drop-off machines have CanStop turned on initially so that either drop-off operation can
/// be stopped. If this TrayMover has already been stopped, then this will also
/// stop a newly constructed CompleteDropoff machine before returning it.
/// </summary>
/// <param name="startingType"></param>
/// <returns>TransportOperationMachine</returns>
protected TransportOperationMachine InitializeSubmachine(TransportOperation startingType)
{
TransportOperationMachine initialized = null;
lock (_subMachineLock)
{
switch (startingType)
{
case TransportOperation.BeginPickup:
BeginPickupMachine = CreateSubmachine("BeginTrayPickup", BeginPickupBuilder, _beginPickupConfig);
initialized = BeginPickupMachine;
break;
case TransportOperation.CompletePickup:
CompletePickupMachine = CreateSubmachine("CompleteTrayPickup", CompletePickupBuilder, _completePickupConfig);
initialized = CompletePickupMachine;
break;
case TransportOperation.BeginDropoff:
BeginDropoffMachine = CreateSubmachine("BeginTrayDropoff", BeginDropoffBuilder, _beginDropoffConfig);
BeginDropoffMachine.CanStop = true;
initialized = BeginDropoffMachine;
break;
case TransportOperation.CompleteDropoff:
CompleteDropoffMachine = CreateSubmachine("CompleteTrayDropoff", CompleteDropoffBuilder, _completeDropoffConfig);
CompleteDropoffMachine.CanStop = true;
// CompleteDropoff needs to know if the mover was already stopped
if (IsStopped)
{
CompleteDropoffMachine.Stop();
}
initialized = CompleteDropoffMachine;
break;
}
}
return(initialized);
}
