Castle Windsor - Injecting IActionInvoker Implementation Issue
I am trying to use the approach from this article, but I am missing something - I am currently getting an error within WindsorControllerFactory.GetControllerInstance when it tries to resolve IActionInvoker since WindsorActionInvoker has a dependency on IWindsorContainer.
Given that WindsorControllerFactory already has a reference to IWindsorContainer, could I pass that reference in? If so - how? The only examples I have found are about passing value types as constructor parameters, not reference types.
I'm feeling I'm missing something obvious...
Current setup as follows: Within Global.asax Application_Start I call the following method:
protected virtual IWindsorContainer InitializeServiceLocator()
{
IWindsorContainer container = new WindsorContainer();
ControllerBuilder.Current.SetControllerFactory(new WindsorControllerFactory(container));
container.RegisterControllers(typeof(HomeController).Assembly);
ComponentRegistrar.AddComponentsTo(container);
return container;
}
ComponentRegistrar:
public static void AddComponentsTo(IWindsorContainer container)
{
//add other components.....
container.AddComponentLifeStyle<IActionInvoker, WindsorActionInvoker>(LifestyleType.PerWebRequest);
}
WindsorActionInvoker:
public class WindsorActionInvoker : ControllerActionInvoker, IActionInvoker
{
readonly IWindsorContainer container;
public WindsorActionInvoker(IWindsorContainer container)
{
this.container = container;
}
protected override ActionExecutedContext InvokeActionMethodWithFilters(
ControllerContext controllerContext,
IList<IActionFilter> filters,
ActionDescriptor actionDescriptor,
IDictionary<string, object> parameters)
{
foreach (IActionFilter actionFilter in filters)
{
container.Kernel.InjectProperties(actionFilter);
}
return base.InvokeActionMethodWithFilters(controllerCo开发者_Go百科ntext, filters, actionDescriptor, parameters);
}
}
WindsorControllerFactory:
public class WindsorControllerFactory : DefaultControllerFactory
{
private readonly IWindsorContainer container;
public WindsorControllerFactory(IWindsorContainer container)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
this.container = container;
}
public override void ReleaseController(IController controller)
{
var disposable = controller as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
this.container.Release(controller);
}
protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
{
if (controllerType == null)
{
return base.GetControllerInstance(requestContext, controllerType);
}
var controller = this.container.Resolve(controllerType) as Controller;
if (controller != null)
{
controller.ActionInvoker = this.container.Resolve<IActionInvoker>(this.container);
}
return controller;
}
}
Update
I missed a subtlety: I was trying to use this behaviour for the following:
public class CustomAuthorize : AuthorizeAttribute {...}
which doesn't implement IActionFilter
.
Added the following to WindsorActionInvoker:
protected override AuthorizationContext InvokeAuthorizationFilters(ControllerContext controllerContext, IList<IAuthorizationFilter> filters, ActionDescriptor actionDescriptor)
{
foreach (IAuthorizationFilter authorizeFilter in filters)
{
this.kernel.InjectProperties(authorizeFilter);
}
return base.InvokeAuthorizationFilters(controllerContext, filters, actionDescriptor);
}
This now works as required. Thanks to Cristiano since it was analysis of his kindly provided code which put me on the right path.
Global.asax
private static void bootstrapContainer()
{
container = new WindsorContainer()
.Install(FromAssembly.This());
var controllerFactory = new WindsorControllerFactory(container.Kernel);
ControllerBuilder.Current.SetControllerFactory(controllerFactory);
}
Installer / filling container
public class ControllersInstaller : IWindsorInstaller
{
#region IWindsorInstaller Members
public void Install(IWindsorContainer container, IConfigurationStore store)
{
container.Register(Component.For<WpRegistration.Web.Filters.AgencyAuthorize>().LifeStyle.Transient);
container.Register(Component.For<IActionInvoker>().ImplementedBy<WindsorExtensions.Mvc.WindsorActionInvoker>().LifeStyle.Transient);
container.Register(AllTypes.FromThisAssembly()
.BasedOn<IController>()
.If(Component.IsInSameNamespaceAs<HomeController>())
.If(t => t.Name.EndsWith("Controller"))
.Configure((c => c.LifeStyle.Transient)));
}
#endregion
}
WindsorControllerFactory
using System;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using Castle.MicroKernel;
public class WindsorControllerFactory : DefaultControllerFactory
{
private readonly IKernel kernel;
public WindsorControllerFactory(IKernel kernel)
{
this.kernel = kernel;
}
public override void ReleaseController(IController controller)
{
kernel.ReleaseComponent(controller);
}
protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
{
if (controllerType == null)
{
throw new HttpException(404, string.Format("The controller for path '{0}' could not be found.", requestContext.HttpContext.Request.Path));
}
IController iController = (IController)kernel.Resolve(controllerType);
// new code
if (iController is Controller)
{
((Controller)iController).ActionInvoker = kernel.Resolve<IActionInvoker>();
}
return iController;
}
}
WindsorActionInvoker
namespace WindsorExtensions.Mvc
{
public class WindsorActionInvoker : ControllerActionInvoker
{
readonly IKernel kernel;
public WindsorActionInvoker(IKernel kernel)
{
this.kernel = kernel;
}
protected override ActionExecutedContext InvokeActionMethodWithFilters(
ControllerContext controllerContext
, IList<IActionFilter> filters
, ActionDescriptor actionDescriptor
, IDictionary<string, object> parameters)
{
foreach (IActionFilter actionFilter in filters)
{
kernel.InjectProperties(actionFilter);
}
return base.InvokeActionMethodWithFilters(controllerContext, filters, actionDescriptor, parameters);
}
}
public static class WindsorExtension
{
public static void InjectProperties(this IKernel kernel, object target)
{
var type = target.GetType();
foreach (var property in type.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
if (property.CanWrite && kernel.HasComponent(property.PropertyType))
{
var value = kernel.Resolve(property.PropertyType);
try { property.SetValue(target, value, null); }
catch (Exception ex)
{
var message = string.Format("Error setting property {0} on type {1}, See inner exception for more information.", property.Name, type.FullName);
throw new ComponentActivatorException(message, ex);
}
}
}
}
}
}
AgencyAuthorizeAttribute
namespace WpRegistration.Web.Filters
{
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public sealed class AgencyAuthorize : ActionFilterAttribute
{
CurrentUserService _currentUserSvc;
public AgencyAuthorize() { }
public CurrentUserService Service
{
get { return _currentUserSvc; }
set
{
this._currentUserSvc=value;
}
}
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