public void Unsubscribe <T>(IHandle <T> handler) where T : Message
{
if (_handler == null || _idTracker == null)
{
return;
}
if (!ReferenceEquals(handler, (IHandle <T>)_handler))
{
throw new ArgumentException("Handler is not current registered handler");
}
_bus.Unsubscribe <Message>(_idTracker);
_handler = null;
_idTracker = null;
}
public IDisposable Subscribe <T>(IHandle <T> handler) where T : Message
{
if (_idTracker != null)
{
throw new ArgumentException("Cannot subscribe more than one tracked handler");
}
if (typeof(T) != typeof(Message))
{
throw new ArgumentException("Only Message type subscriptions supported");
}
_handler = handler;
_idTracker = new MessageIdTracker((IHandle <Message>)handler, (g) => _trackedMessages.Add(g));
_bus.Subscribe <Message>(_idTracker);
return(new SubscriptionDisposer(() => { this?.Unsubscribe(handler); return Unit.Default; }));
}
public BusAdapter(IGeneralBus bus)
{
_idTracker = null;
_bus = bus;
_trackedMessages = new HashSet <Guid>();
}
