Question

我试图在Ninject上重现以下温莎配置。我知道ninject有一个工厂扩展，但它远离windsor的字典适配器。

WindsorContainer container = new WindsorContainer();
container.AddFacility<Castle.Facilities.FactorySupport.FactorySupportFacility>();

container.Register(
Component.For<IApplicationSettings>().UsingFactoryMethod(
    () => new DictionaryAdapterFactory()
         .GetAdapter<IApplicationSettings>(ConfigurationManager.AppSettings)));

有没有人知道ninject的工厂扩展可以进行字典改编？

Answer 1

工厂扩展程序允许您提供自己的IInstanceProvider。您可以使用它来从配置中返回值：

class Program
{
    static void Main(string[] args)
    {
        var kernel = new StandardKernel();
        kernel.Bind<IApplicationSettings>().ToFactory(() => new AppSettingProvider());

        var settings = kernel.Get<IApplicationSettings>();
        Console.WriteLine("One: " + settings.One);
    }
}

public interface IApplicationSettings
{
    string One { get; }
    int Two { get; }
    bool Three { get; }
}

public class AppSettingProvider : Ninject.Extensions.Factory.IInstanceProvider
{
    public object GetInstance(IInstanceResolver instanceResolver, MethodInfo methodInfo, object[] arguments)
    {
        string key = methodInfo.Name;
        if (key.StartsWith("get_"))
            key = key.Substring(4);

        string value = ConfigurationManager.AppSettings[key];
        return Convert.ChangeType(value, methodInfo.ReturnType);
    }
}

什么是Ninject中Windsor的DictionaryAdapterFactory的等价物？

1 个答案: