gistfile1.txt

using System;
using System.Net.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Dispatcher;
using Ninject;

namespace xxxx.Web.Application.Umbraco
{
    public class UmbracoWebApiHttpControllerActivator : IHttpControllerActivator
    {
        private readonly DefaultHttpControllerActivator _defaultHttpControllerActivator;
        private readonly IKernel _kernel;

        public UmbracoWebApiHttpControllerActivator(IKernel kernel)
        {
            _kernel = kernel;
            this._defaultHttpControllerActivator = new DefaultHttpControllerActivator();
        }

        public IHttpController Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType)
        {
            if(this.IsUmbracoController(controllerType))
            {
                return this._defaultHttpControllerActivator.Create(request, controllerDescriptor, controllerType);
            }
            
            var controller = (IHttpController)_kernel.Get(controllerType);
            request.RegisterForDispose(new Release(() => _kernel.Release(controller)));
            return controller;                     
        }
        
        private bool IsUmbracoController(Type controllerType)
        {
            return controllerType.Namespace != null
                && controllerType.Namespace.StartsWith("umbraco", StringComparison.InvariantCultureIgnoreCase);
        }
    }

    internal class Release : IDisposable
    {
        private readonly Action _release;

        public Release(Action release)
        {
            _release = release;
        }

        public void Dispose()
        {
            _release();
        }
    }
}