Can't get Ninject.Extensions.Interception working

Question

I've been trying for ages to figure this our. when i try to bind my class with an interceptor i'm getting the following exception on the line

Kernel.Bind<MyClass>().ToSelf().Intercept().With<ILoggerAspect>();

Error loading Ninject component IAdviceFactory. No such component has been registered in the kernel's component container

I've tried with and without LoadExtensions, With about with using a Module to set up my bindings and my last attempt looks like this

internal class AppConfiguration 
{

    internal AppConfiguration( )
    {
        var settings = new NinjectSettings() { LoadExtensions = false };
        Kernel = new StandardKernel(settings);
        Load();
    }

    internal StandardKernel Kernel { get; set; }

    public static AppConfiguration Instance
    {
        get { return _instance ?? (_instance = new AppConfiguration()); }
    }

    private static AppConfiguration _instance;

    private void Load()
    {
        Kernel.Bind<ILoggerAspect>().To<Log4NetAspect>().InSingletonScope();
        Kernel.Bind<MyClass>().ToSelf().Intercept().With<ILoggerAspect>();
    }

    internal static StandardKernel Resolver()
    {
        return Instance.Kernel;
    }
}

My Logger Attribute looks like this

public class LogAttribute : InterceptAttribute
{
    public override IInterceptor CreateInterceptor(IProxyRequest request)
    {
        return request.Context.Kernel.Get<ILoggerAspect>();
    }
}

And my interceptor like this

 public class Log4NetAspect : SimpleInterceptor, ILoggerAspect
{
    protected override void BeforeInvoke(IInvocation invocation)
    {
        Debug.WriteLine("Running " + invocation.ReturnValue);
        base.BeforeInvoke(invocation);
    }

    public new void Intercept(IInvocation invocation)
    {
        try
        {
            base.Intercept(invocation);
        }
        catch (Exception e)
        {
            Debug.WriteLine("Exception: " + e.Message);
        }
    }

    protected override void AfterInvoke(IInvocation invocation)
    {
        Debug.WriteLine("After Method");
        base.AfterInvoke(invocation);
    }
}

score 30 · Accepted Answer · edited Apr 03 '12 at 20:15

30

Most likely you didn't deploy Ninject.Extensions.Interception.DynamicProxy or Ninject.Extensions.Interception.Linfu alongside your application [and Ninject.Extensions.Interception]. You have to pick exactly one of them.

With the code as you have it right now (LoadExtensions=false) it will fail to pick up the specific interception library - you should remove that and the normal extensions loading should wire the extension into the Kernel on creation for the interception bits to pick it up.

edited Apr 03 '12 at 20:15

Ruben Bartelink

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answered Apr 03 '12 at 07:02

Remo Gloor

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I tried grabbing them with Nuget, do you need both or just one? – Ryan Burnham Apr 03 '12 at 07:53
2

Thanks that was it. Why doesn't the nuget package just add one of these as a Default? from the developer using it it makes no difference what it uses. – Ryan Burnham Apr 04 '12 at 00:05
Useful to know, I was trying to get it to work using LoadExtensions=false and couldn't get an instance of anything from the kernel – user1039513 Aug 29 '12 at 08:06
Do you need the Kernel.Bind().ToSelf().Intercept().With(); as well as the LoggerAttribute ?? I can't get this working either, but I was under the impression that you only need the attribute OR the bind and not both? – Robert Noack Nov 21 '14 at 17:06
To add to my comment above I can confirm you don't need both. If you add the Kernel.Bind *and* the attribute, your interceptor will fire twice. – Robert Noack Nov 21 '14 at 18:19

score 3 · Answer 2 · edited May 23 '17 at 11:58

In addition to Remo Gloor's answer which pointed me toward adding the nuget package for Ninject.Extensions.Interception.DynamicProxy, I kept getting the same exception as the OP, until I manually loaded a DynamicProxyModule - the FuncModule is manually loaded as well, to work around a similar error involving the factory extension:

_kernel = new StandardKernel(
    new NinjectSettings{LoadExtensions = true}, 
    new FuncModule(), 
    new DynamicProxyModule()); // <~ this is what fixed it

Can't get Ninject.Extensions.Interception working

2 Answers2

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