public void HandleLinkFrame(AmqpFrame frame, ByteBuffer buffer = null)
{
lock (stateSyncRoot)
{
try
{
if (frame is Attach)
HandleAttachFrame(frame as Attach);
else if (frame is Flow)
HandleFlowFrame(frame as Flow);
else if (frame is Transfer)
HandleTransferFrame(frame as Transfer, buffer);
else if (frame is Detach)
HandleDetachFrame(frame as Detach);
else
throw new AmqpException(ErrorCode.IllegalState, $"Received frame {frame.Descriptor.ToString()} but link state is {State.ToString()}.");
}
catch (AmqpException amqpException)
{
trace.Error(amqpException);
DetachLink(amqpException.Error, destoryLink: true);
}
catch (Exception fatalException)
{
trace.Fatal(fatalException, "Ending Session due to fatal exception.");
var error = new Error()
{
Condition = ErrorCode.InternalError,
Description = "Ending Session due to fatal exception: " + fatalException.Message,
};
DetachLink(error, destoryLink: true);
}
}
}
internal void HandleSessionFrame(AmqpFrame frame, ByteBuffer buffer = null)
{
lock (stateSyncRoot)
{
try
{
if (frame is Begin)
HandleBeginFrame(frame as Begin);
else if (frame is Attach)
InterceptAttachFrame(frame as Attach);
else if (frame is Flow)
InterceptFlowFrame(frame as Flow);
else if (frame is Transfer)
InterceptTransferFrame(frame as Transfer, buffer);
else if (frame is Disposition)
InterceptDispositionFrame(frame as Disposition);
else if (frame is Detach)
InterceptDetachFrame(frame as Detach);
else if (frame is End)
HandleEndFrame(frame as End);
else
throw new AmqpException(ErrorCode.IllegalState, $"Received frame {frame.Descriptor.ToString()} but session state is {State.ToString()}.");
}
catch (AmqpException amqpException)
{
trace.Error(amqpException);
EndSession(amqpException.Error);
}
catch (Exception fatalException)
{
trace.Fatal(fatalException, "Ending Session due to fatal exception.");
var error = new Error()
{
Condition = ErrorCode.InternalError,
Description = "Ending Session due to fatal exception: " + fatalException.Message,
};
EndSession(error);
}
}
}
protected void EncodeAndSend(AmqpFrame frame, ushort channelNumber = 0)
{
var buffer = new ByteBuffer(512, true);
AmqpCodec.EncodeFrame(buffer, frame, channelNumber);
connection.HandleFrame(buffer);
}
public void SendFrame(AmqpFrame frame)
{
if (!State.CanSendFrames())
{
throw new AmqpException(ErrorCode.IllegalState, $"Cannot send frame when session state is {State.ToString()}.");
}
Connection.SendFrame(frame, ChannelNumber);
}
