使用带有SignalR简单的喷油器 [英] Using Simple Injector with SignalR

问题描述

我想用我自己的IoC是pretty向前伸直与SignalR，也许它;最有可能的，我做错了什么。这里是我的code我到目前为止有：

I thought using my own IoC would be pretty straight forward with SignalR and maybe it is; most likely I'm doing something wrong. Here's my code I have so far:

private static void InitializeContainer(Container container)
{

   container.Register<IMongoHelper<UserDocument>, MongoHelper<UserDocument>>();
   // ... registrations like about and then:
   var resolver = new SimpleInjectorResolver(container);
   GlobalHost.DependencyResolver = resolver;
}

然后我的类：

public class SimpleInjectorResolver : DefaultDependencyResolver
{
    private Container _container;
    public SimpleInjectorResolver(Container container)
    {
        _container = container;
    }

    public override object GetService(Type serviceType)
    {
        return _container.GetInstance(serviceType) ?? base.GetService(serviceType);
    }

    public override IEnumerable<object> GetServices(Type serviceType)
    {
        return _container.GetAllInstances(serviceType) ?? base.GetServices(serviceType);
    }
}

什么结束了发生的事情是，我得到一个错误，IJavaScriptProxyGenerator解决不了的，所以我觉得，嗯，我会添加注册：

What ends up happening is I get an error that IJavaScriptProxyGenerator can't be resolved, so I think, well I'll add the registration:

container.Register<IJavaScriptProxyGenerator, DefaultJavaScriptProxyGenerator>(
    ConstructorSelector.MostParameters);

但后来有一堆别人的！我到：

but then there are a bunch of others! I get to:

container.Register<IDependencyResolver, SimpleInjectorResolver>();
container.Register<IJavaScriptMinifier, NullJavaScriptMinifier>();
container.Register<IJavaScriptProxyGenerator, DefaultJavaScriptProxyGenerator>(
    ConstructorSelector.MostParameters);
container.Register<IHubManager, DefaultHubManager>();
container.Register<IHubActivator, DefaultHubActivator>();
container.Register<IParameterResolver, DefaultParameterResolver>();
container.Register<IMessageBus, InProcessMessageBus>(ConstructorSelector.MostParameters);

这仍然给我的类型没有注册 ITraceManager 可以找到。 ......但现在我想知道如果我在做这一切的权利，因为我不希望我需要重新线一切SignalR是做......吧？希望？如果不是我会继续吃力地往前走，但我是一个SignalR和简单的注射器福利局所以想我会先问。 ：）

Which still gives me "No registration for type ITraceManager could be found." ... but now I'm wondering if I'm doing this right at all as I hoping I wouldn't need to re-wire everything SignalR is doing...right? Hopefully? If not I'll keep trudging along but I'm a SignalR and Simple Injector newb so thought I'd ask first. :)

其他： https://cuttingedge.it/blogs/steven/枢轴/ entry.php？ID = 88 因为SignalR有多个构造函数。

Additional: https://cuttingedge.it/blogs/steven/pivot/entry.php?id=88 since SignalR had multiple constructors.

推荐答案

好吧，我昨天试了，我已经找到了解决办法。
据我，在这里我想在SignalR依赖注入的唯一时刻是我集线器：我不关心SignalR是如何工作的里面！
因此，而不是替换DependencyResolver，我创建了自己的实现IHubActivator的：

Well, I tried yesterday and I've found a solution. According to me, the only moment where I want dependency injection in SignalR is for my hubs: I don't care about how SignalR is working inside ! So instead of replacing the DependencyResolver, I created my own implementation of IHubActivator :

public class SimpleInjectorHubActivator : IHubActivator
{
    private readonly Container _container;

    public SimpleInjectorHubActivator(Container container)
    {
        _container = container;
    }

    public IHub Create(HubDescriptor descriptor)
    {
        return (IHub)_container.GetInstance(descriptor.HubType);
    }
}

这是我可以这样注册（在的Application_Start）：

That I can register like this (in Application_Start) :

var activator = new SimpleInjectorHubActivator(container);
GlobalHost.DependencyResolver.Register(typeof(IHubActivator), () => activator);
RouteTable.Routes.MapHubs();

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