Injecting NLog with Autofac's RegisterGeneric

Question

Note: Updated with suggested improvements, closer but still not quite there!

Similar to this question - Passing in the type of the declaring class for NLog using Aut

Answer 1

For those using ILogger from Microsoft.Extensions.Logging namespace together with NLog.Extensions.Logging Nuget package.

public class NLoggerModule : Module
{
    private readonly NLogLoggerProvider _provider;

    public NLoggerModule()
    {
        _provider = new NLogLoggerProvider();
    }

    protected override void Load(ContainerBuilder builder)
    {
        builder.Register(CreateLogger).AsImplementedInterfaces();
    }

    private ILogger CreateLogger(IComponentContext c, IEnumerable p)
    {
        var logger = _provider.CreateLogger(p.TypedAs().FullName);
        return logger;
    }

    protected override void AttachToComponentRegistration(IComponentRegistry componentRegistry, IComponentRegistration registration)
    {
        registration.Preparing += Registration_Preparing;
    }

    private void Registration_Preparing(object sender, PreparingEventArgs args)
    {
        var forType = args.Component.Activator.LimitType;

        var logParameter = new ResolvedParameter(
            (p, c) => p.ParameterType == typeof(ILogger),
            (p, c) => c.Resolve(TypedParameter.From(forType)));

        args.Parameters = args.Parameters.Union(new[] { logParameter });
    }
}