public IDispatchQueueHandler GetDispatchQueue(IMessageHandler handler)
{
if (_dispatchQueue == null)
{
if (handler == null)
{
throw new InvalidOperationException("Please provide a call back function");
}
if (_sharedQueue.RegisterHandler(Descriptor.Id, handler))
{
_dispatchQueue = new DispatchQueueHandler(_sharedQueue, Descriptor.Id);
}
else
{
// failed to register messageHandler, fall back to in memory implementation
_dispatchQueue = new InMemoryDispatchQueueHandler(handler);
}
}
else if (handler != null)
{
throw new InvalidOperationException("Cannot register more than one handler with a single function");
}
return(_dispatchQueue);
}
public Listener(ListenerFactoryContext context)
{
_dispatchQueue = context.GetDispatchQueue(new SimpleHandler(context.Executor));
}