private Task InvokeHandlersInternal(IEnumerable <object> handlers, object message)
{
if (handlers == null)
{
throw new ArgumentNullException("message");
}
var tasks = new List <Task>();
var asList = handlers.ToList();
asList.Aggregate(tasks, (c, handler) =>
{
var del = HandlerDelegateFactory.GetdMessageHandlerDelegate(handler.GetType(), message.GetType());
var delTask = del(handler, new[] { message });
tasks.Add(delTask);
return(c);
});
var whenAllTask = Task.WhenAll(tasks)
.ContinueWith(t =>
{
foreach (var h in asList)
{
var disposable = h as IDisposable;
disposable?.Dispose();
}
if (t.Exception != null)
{
throw t.Exception;
}
});
return(whenAllTask);
}
public static Func <object, object[], Task> GetdMessageHandlerDelegate(Type handlerType, Type commandType)
{
return(HandlerDelegateFactory.MessageHandlerDelegatesCache.GetOrAdd(new Tuple <Type, Type>(handlerType, commandType), t => HandlerDelegateFactory.BuildMessageHandlerDelegateInternal(handlerType, commandType)));
}