public override Task <QbservableMessage> ReceivingAsync(QbservableMessage message, CancellationToken cancel)
{
DuplexQbservableMessage duplexMessage;
if (DuplexQbservableMessage.TryParse(message, protocol, out duplexMessage))
{
message = duplexMessage;
switch (duplexMessage.Kind)
{
case QbservableProtocolMessageKind.DuplexResponse:
HandleResponse(duplexMessage.Id, duplexMessage.Value);
break;
case QbservableProtocolMessageKind.DuplexErrorResponse:
HandleErrorResponse(duplexMessage.Id, duplexMessage.Error);
break;
case QbservableProtocolMessageKind.DuplexSubscribeResponse:
HandleSubscribeResponse(duplexMessage.Id, (int)duplexMessage.Value);
break;
case QbservableProtocolMessageKind.DuplexGetEnumeratorResponse:
HandleGetEnumeratorResponse(duplexMessage.Id, (int)duplexMessage.Value);
break;
case QbservableProtocolMessageKind.DuplexGetEnumeratorErrorResponse:
HandleGetEnumeratorErrorResponse(duplexMessage.Id, duplexMessage.Error);
break;
case QbservableProtocolMessageKind.DuplexEnumeratorResponse:
HandleEnumeratorResponse(duplexMessage.Id, (Tuple <bool, object>)duplexMessage.Value);
break;
case QbservableProtocolMessageKind.DuplexEnumeratorErrorResponse:
HandleEnumeratorErrorResponse(duplexMessage.Id, duplexMessage.Error);
break;
case QbservableProtocolMessageKind.DuplexOnNext:
HandleOnNext(duplexMessage.Id, duplexMessage.Value);
break;
case QbservableProtocolMessageKind.DuplexOnCompleted:
HandleOnCompleted(duplexMessage.Id);
break;
case QbservableProtocolMessageKind.DuplexOnError:
HandleOnError(duplexMessage.Id, duplexMessage.Error);
break;
default:
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, Errors.ProtocolUnknownMessageKindFormat, duplexMessage.Kind));
}
duplexMessage.Handled = true;
}
return(Task.FromResult(message));
}
internal async void SendDuplexMessageAsync(DuplexQbservableMessage message)
{
try
{
await SendMessageAsync(message).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
}
catch (Exception ex)
{
CancelAllCommunication(ex);
}
}
public override Task <QbservableMessage> ReceivingAsync(QbservableMessage message, CancellationToken cancel)
{
DuplexQbservableMessage duplexMessage;
if (DuplexQbservableMessage.TryParse(message, protocol, out duplexMessage))
{
message = duplexMessage;
switch (duplexMessage.Kind)
{
case QbservableProtocolMessageKind.DuplexInvoke:
Invoke(duplexMessage.Id, (object[])duplexMessage.Value);
break;
case QbservableProtocolMessageKind.DuplexSubscribe:
Subscribe(duplexMessage.Id);
break;
case QbservableProtocolMessageKind.DuplexDisposeSubscription:
DisposeSubscription(duplexMessage.Id.ClientId);
break;
case QbservableProtocolMessageKind.DuplexGetEnumerator:
GetEnumerator(duplexMessage.Id);
break;
case QbservableProtocolMessageKind.DuplexMoveNext:
MoveNext(duplexMessage.Id);
break;
case QbservableProtocolMessageKind.DuplexResetEnumerator:
ResetEnumerator(duplexMessage.Id);
break;
case QbservableProtocolMessageKind.DuplexDisposeEnumerator:
DisposeEnumerator(duplexMessage.Id.ClientId);
break;
default:
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, Errors.ProtocolUnknownMessageKindFormat, duplexMessage.Kind));
}
duplexMessage.Handled = true;
}
return(Task.FromResult(message));
}
public static bool TryParse(QbservableMessage message, QbservableProtocol protocol, out DuplexQbservableMessage duplexMessage)
{
switch (message.Kind)
{
case QbservableProtocolMessageKind.DuplexInvoke:
case QbservableProtocolMessageKind.DuplexResponse:
case QbservableProtocolMessageKind.DuplexSubscribeResponse:
case QbservableProtocolMessageKind.DuplexGetEnumeratorResponse:
case QbservableProtocolMessageKind.DuplexEnumeratorResponse:
case QbservableProtocolMessageKind.DuplexOnNext:
// The following cases are handled the same as the above cases to ensure that extra data is read, though it's unexpected.
case QbservableProtocolMessageKind.DuplexOnCompleted:
case QbservableProtocolMessageKind.DuplexSubscribe:
case QbservableProtocolMessageKind.DuplexDisposeSubscription:
case QbservableProtocolMessageKind.DuplexGetEnumerator:
case QbservableProtocolMessageKind.DuplexMoveNext:
case QbservableProtocolMessageKind.DuplexResetEnumerator:
case QbservableProtocolMessageKind.DuplexDisposeEnumerator:
duplexMessage = new DuplexQbservableMessage(
message.Kind,
BitConverter.ToInt64(message.Data, 0),
protocol.Deserialize <object>(message.Data, offset: DuplexCallbackId.Size),
message.Data,
message.Length);
return(true);
case QbservableProtocolMessageKind.DuplexErrorResponse:
case QbservableProtocolMessageKind.DuplexGetEnumeratorErrorResponse:
case QbservableProtocolMessageKind.DuplexEnumeratorErrorResponse:
case QbservableProtocolMessageKind.DuplexOnError:
duplexMessage = new DuplexQbservableMessage(
message.Kind,
BitConverter.ToInt64(message.Data, 0),
protocol.Deserialize <Exception>(message.Data, offset: DuplexCallbackId.Size),
message.Data,
message.Length);
return(true);
default:
duplexMessage = null;
return(false);
}
}
internal IDisposable ServerSendSubscribeDuplexMessage(
int clientId,
Action <object> onNext,
Action <Exception> onError,
Action onCompleted)
{
var duplexSink = FindSink <IServerDuplexQbservableProtocolSink>();
var registration = duplexSink.RegisterObservableCallbacks(
clientId,
onNext,
onError,
onCompleted,
subscriptionId => SendDuplexMessageAsync(DuplexQbservableMessage.CreateDisposeSubscription(subscriptionId, this)));
var id = registration.Item1;
var subscription = registration.Item2;
var message = DuplexQbservableMessage.CreateSubscribe(id, this);
SendDuplexMessage(message);
return(subscription);
}
protected override void SendError(DuplexCallbackId id, Exception error)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateErrorResponse(id, error, protocol));
}
public override void DisposeEnumerator(int enumeratorId)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateDisposeEnumerator(enumeratorId, protocol));
}
public override void ResetEnumerator(int enumeratorId)
{
protocol.ServerSendEnumeratorDuplexMessage(enumeratorId, id => DuplexQbservableMessage.CreateResetEnumerator(id, protocol));
}
public override Tuple <bool, object> MoveNext(int enumeratorId)
{
return((Tuple <bool, object>)protocol.ServerSendEnumeratorDuplexMessage(enumeratorId, id => DuplexQbservableMessage.CreateMoveNext(id, protocol)));
}
public override int GetEnumerator(int clientId)
{
return((int)protocol.ServerSendDuplexMessage(clientId, id => DuplexQbservableMessage.CreateGetEnumerator(id, protocol)));
}
public override void SendOnError(DuplexCallbackId id, Exception error)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateOnError(id, error, protocol));
}
public override void SendOnNext(DuplexCallbackId id, object value)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateOnNext(id, value, protocol));
}
public override object Invoke(int clientId, object[] arguments)
{
return(protocol.ServerSendDuplexMessage(clientId, id => DuplexQbservableMessage.CreateInvoke(id, arguments, protocol)));
}
protected override void SendResponse(DuplexCallbackId id, object result)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateResponse(id, result, protocol));
}
public override void SendOnCompleted(DuplexCallbackId id)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateOnCompleted(id, protocol));
}
protected override void SendEnumeratorResponse(DuplexCallbackId id, bool result, object current)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateEnumeratorResponse(id, result, current, protocol));
}
protected override void SendGetEnumeratorError(DuplexCallbackId id, Exception error)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateGetEnumeratorError(id, error, protocol));
}
protected override void SendGetEnumeratorResponse(DuplexCallbackId id, int clientEnumeratorId)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateGetEnumeratorResponse(id, clientEnumeratorId, protocol));
}
protected override void SendSubscribeResponse(DuplexCallbackId id, int clientSubscriptionId)
{
protocol.SendDuplexMessageAsync(DuplexQbservableMessage.CreateSubscribeResponse(id, clientSubscriptionId, protocol));
}
private void SendDuplexMessage(DuplexQbservableMessage message)
{
SendMessageAsync(message).Wait(Cancel);
}