Problem with initializing a type with WinsdorContainer

Question

    public ApplicationView(string[] args)
    {
        InitializeComponent();

        string configFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "log4net.config");
        FileInfo configFileInfo = new FileInfo(configFilePath);
        XmlConfigurator.ConfigureAndWatch(configFileInfo);

        IConfigurationSource configSource = ConfigurationManager.GetSection("ActiveRecord") as IConfigurationSource;
        Assembly assembly = Assembly.Load("Danel.Nursing.Model");
        ActiveRecordStarter.Initialize(assembly, configSource);         

        WindsorContainer windsorContainer = ApplicationUtils.GetWindsorContainer();
        windsorContainer.Kernel.AddComponentInstance<ApplicationView>(this);
        windsorContainer.Kernel.AddComponent(typeof(ApplicationController).Name, typeof(ApplicationController));
        controller = windsorContainer.Resolve<ApplicationController>(); // exception is thrown here

        OnApplicationLoad(args);
    }

The stack trace is this:

Castle.MicroKernel.ComponentActivator.ComponentActivatorException was unhandled
Message="ComponentActivator: could not instantiate Danel.Nursing.Scheduling.Actions.DataServices.NurseAbsenceDataService" Source="Castle.MicroKernel"
StackTrace: at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, Object[] arguments, Type[] signature) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context) at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context) at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context) at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.ResolveServiceDependency(CreationContext context, ComponentModel model, DependencyModel dependency) at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver parentResolver, ComponentModel model, DependencyModel dependency) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context, Type[]& signature) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context) at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context) at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context) at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.ResolveServiceDependency(CreationContext context, ComponentModel model, DependencyModel dependency) at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver parentResolver, ComponentModel model, DependencyModel dependency) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context, Type[]& signature) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context) at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context) at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context) at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.ResolveServiceDependency(CreationContext context, ComponentModel model, DependencyModel dependency) at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver parentResolver, ComponentModel model, DependencyModel dependency) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context, Type[]& signature) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context) at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context) at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context) at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context) at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments) at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service) at Castle.MicroKernel.DefaultKernel.get_Item(Type service) at Castle.Windsor.WindsorContainer.Resolve(Type service) at Castle.Windsor.WindsorContainer.ResolveT at Danel.Nursing.Scheduling.ApplicationView..ctor(String[] args) in E:\Agile\Scheduling\Danel.Nursing.Scheduling\ApplicationView.cs:line 65 at Danel.Nursing.Scheduling.Program.Main(String[] args) in E:\Agile\Scheduling\Danel.Nursing.Scheduling\Program.cs:line 24 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException: System.ArgumentNullException Message="Value cannot be null.\r\nParameter name: types" Source="mscorlib" ParamName="types" StackTrace: at System.Type.GetConstructor(BindingFlags bindingAttr, Binder binder, Type[] types, ParameterModifier[] modifiers) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.FastCreateInstance(Type implType, Object[] arguments, Type[] signature) at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, Object[] arguments, Type[] signature) InnerException:

It actually says that the type that I'm trying to initialize does not exist, I think. This is the concreate type that it complains about:

   namespace Danel.Nursing.Scheduling.Actions.DataServices
    {
        using System;
        using Helpers;
        using Rhino.Commons;
        using Danel.Nursing.Model;
        using NHibernate.Expressions;
        using System.Collections.Generic;
        using DateUtil = Danel.Nursing.Scheduling.Actions.Helpers.DateUtil;
        using Danel.Nursing.Scheduling.Actions.DataServices.Interfaces;

        public class NurseAbsenceDataService : AbstractDataService<NurseAbsence>, INurseAbsenceDataService
        {
            NurseAbsenceDataService(IRepository<NurseAbsence> repository)
                : base(repository)
            {
            }

            //...
        }
    }

The AbstractDataService only holds the IRepository for now. Anyone got an idea why the exception is thrown?

EDIT:
The problem lays here:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Danel.Nursing.Scheduling.Actions.Interfaces;
using Rhino.Commons;
using System.Reflection;
using Castle.Windsor;

namespace Danel.Nursing.Scheduling.Actions.Helpers
{
    public class DataServicesInitiator : IDataServicesInitiator
    {
        public void AddToIocContainer(ref WindsorContainer windsorContainer)
        {
            if (windsorContainer.Kernel.HasComponent(typeof(IRepository<>)) == false)
                windsorContainer.AddComponent(typeof(ARRepository<>).FullName, typeof(IRepository<>), typeof(ARRepository<>));
            foreach (Type type in Assembly.Load("Danel.Nursing.Scheduling.Actions").GetTypes())
            {
                if (type == null)
                    continue;

                if (type.Namespace != "Danel.Nursing.Scheduling.Actions.DataServices")
                    continue;

                if (type.IsAbstract || type.IsInterface)
                    continue;

                if (windsorContainer.Kernel.HasComponent(type.FullName))
                    continue;

                if (type.GetInterfaces().Length == 0)
                    windsorContainer.AddComponent(type.FullName, type);
                else
                    windsorContainer.AddComponent(type.FullName, type.GetInterfaces()[0], type);
            }
        }
    }
}

For some reason type is null although GetTypes return no null types.

Krzysztof Kozmic Krzysztof Kozmic · Accepted Answer · 2010-06-15T13:08:32

What does the inner exception say? It looks like the constructor for the type threw an exception or it was unable to properly call the constructor for some other reason...

Update

You can get everything - ActiveRecord, Windsor with MicroKernel, DynamicProxy and NHibernate by downloading ActiveRecord package. It's all there.

If you don't want to update you may take alternative approach - write a custom Activator for this component (inherit from the default one and override the method which exposes the bug.) This should be the safest workaround.

Problem with initializing a type with WinsdorContainer

1 Answers

Update