Autofac - 注册按类型的插件 [英] Autofac - Register plugins by type

问题描述

我正在写一个插件系统：每一个插件是在自己组装必须由autofac被加载，并通过与设置插件的类型参数的属性签署。我能在我的asp.net MVC应用程序插件按类型来解决，我该怎么办呢？每个插件由一个抽象类，覆盖predefinited方法inhrerit。

I'm writing a plugin system: every plugin is in his own assembly that must be loaded by autofac and is signed by an attribute with a parameter that set the type of plugin. I would be able to resolve in my asp.net mvc app the plugins by type, how can I do this? Every plugin inhrerit by an abstract class and override predefinited methods.

推荐答案

RegisterAssemblyTypes（）可能是起点，你后：

Assembly[] assembliesWithPlugins = // find these somehow
var builder = new ContainerBuilder();
builder.RegisterAssemblyTypes(assembliesWithPlugins)
    .AssignableTo<MyAbstractPluginType>()
    .WithMetadata(t => GetPluinTypeFromMyAttribute(t));

一旦你注册您的插件这种方式，Autofac的元数据支持将允许您使用它们（的 HTTP：//$c$c.google.com/p/autofac/wiki/Metadata ）。我presume从你的一些问题以后，你已经走向了这条路。

Once you've registered your plug-ins this way, Autofac's Metadata support will allow you to consume them (http://code.google.com/p/autofac/wiki/Metadata). I presume from some of your later questions that you're already heading down this path.

祝你好运吧。
尼克

Good luck with it. Nick

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