Question

SimpleInjectorContainerAdapter是否支持通过SimpleInjector容器注册的Sagas，使用以下代码我总是得到异常;

键入RebusPlaypen.MyMessageA，无法将RebusPlaypen调度到任何handl ERS

以下代码演示了此问题。这可能是我正在实施Saga注册错误，还是SimpleInjectorContainerAdapter不支持这种类型的注册？

digits <- function(x){as.integer(substring(x, seq(nchar(x)), seq(nchar(x))))}
generated <- function(x){ x + sum(digits(x))} 
digitadition <- function(x,N) { c(x, replicate(N-1, x <<- generated(x))) } 
res <- NULL
for(i in 0:50){
for(j in 2:50){
tmp <-  digitadition(i,j)
IND <- 50*(i-1) + (j-1) - (i-1) #to index results
res[IND] <- tmp[length(tmp)]
}
} 

df <- data.frame(number = unlist(res), generator=rep(1:50, each=49), N=2:50)

total <- table(df$number)[as.numeric(names(table(df$number)))<=50]

setdiff(1:50,  as.numeric(names(total)))

sum(total)

Answer 1

为完整起见，以下更改允许原始问题中的代码与Simple Injector容器一起正常工作;

 public static class RebusSimpleInjectorSagaDemo
 {
      public static void Run()
      {
            var container = new Container();
            container.Register<IMyDependency, MyDependency>();

            // The missing registration
            container.RegisterCollection(typeof(IHandleMessages<>), new [] {Assembly.GetExecutingAssembly()});**

            var network = new InMemNetwork(true);
            var adapter = new SimpleInjectorContainerAdapter(container);

            var _bus = Configure
                 .With(adapter)
                 .Logging(l => l.ColoredConsole(Rebus.Logging.LogLevel.Error))
                 .Transport(t => t.UseInMemoryTransport(network,"my_nice_queue"))
                 .Routing(r => r.TypeBased().MapAssemblyOf<MyMessageA>("my_nice_queue"))
                 .Options(o =>
                 {
                      o.SetNumberOfWorkers(1);
                      o.SetMaxParallelism(1);
                      o.SimpleRetryStrategy(maxDeliveryAttempts: 1);
                 })

                 .Start();

            container.Verify();
            _bus.Send(new MyMessageA { CollationId = Guid.NewGuid(), FaveIceCreamFlavour = "Strawberry" }).Wait();

            Console.WriteLine("Running");
            Console.ReadLine();
      }
 }

Answer 2

无论您使用哪个IoC容器，都必须确保处理程序通过它们提供的IHandleMessages<TMessage>实现来解决。

如果您尝试

 container.GetAllInstances<IHandleMessages<MyMessageA>>();

或

 container.GetAllInstances<IHandleMessages<MyMessageB>>();

您将看到没有返回处理程序。这就是为什么Rebus找不到任何处理程序来发送你的消息的原因：）

SimpleInjectorContainerAdapter，注册Sagas

2 个答案: