/// <summary>
/// Start new sequence in other async thread.
/// </summary>
/// <param name="NextSequence">New Sequence.</param>
/// <returns>Task newly run.</returns>
public Task StartSequence(ComPortAccessSequence NextSequence)
{
if (null == NextSequence)
{
return(null);
}
Task <object> task = Task <object> .Run(() =>
{
this.OnSequenceStartingEvent(
new ConnectStateChangedEventArgs(
new ConnectState(NextSequence.StartingConnectionState)));
if (null != this.CurSequence)
{
this.CurSequence.StopSequence();
this.ReleaseEventHandler(this.CurSequence);
this.CurSequence = null;
}
this.CurSequence = NextSequence;
this.SetupEventHandler(this.CurSequence);
Task MainTask = this.CurSequence.StartSequence(this.ComPortAcc);
this.OnSequenceStartedEvent(
new ConnectStateChangedEventArgs(
new ConnectState(this.CurSequence.StartedConnectionState)));
return((object)MainTask);
});
return((Task)(task.Result));
}
/// <summary>
/// A factory method to create concrete ComPortAccessSequence object.
/// </summary>
/// <param name="SeqName">
/// Identifier used int creating ComPortAccessSequence concrete object.
/// </param>
/// <returns>Concrete ComPortAccessSequence object.</returns>
public static ComPortAccessSequence SequenceFactory(SequenceName SeqName)
{
ComPortAccessSequence AccessSequence = null;
switch (SeqName)
{
case SequenceName.SEQUENCE_NAME_CONNECT:
AccessSequence = new ComPortConnectSequence();
break;
case SequenceName.SEQUENCE_NAME_DISCONNECT:
AccessSequence = new ComPortDisconnectSequence();
break;
case SequenceName.SEQUENCE_NAME_SEND_AND_RECV:
AccessSequence = new EchoBackComPortSendRecvSequence();
break;
default:
AccessSequence = null;
break;
}
return(AccessSequence);
}
/// <summary>
/// Release event handler from sequence passed by arguemnt.
/// </summary>
/// <param name="Sequence"></param>
public void ReleaseEventHandler(ComPortAccessSequence Sequence)
{
Sequence.TaskFinishedEvent -= this.SequenceFinisedEventCallback;
Sequence.NotifySendReceiveDataEvent -= this.NotifySendReceiveDataEventCallback;
Sequence.NotifyRecvExceptionEvent -= this.NotifyRecvExceptionEventCallback;
}
