StructureMap can not find a default instance for HttpServerUtility

Question

I have a class that relies on HttpServerUtilityBase my plan was to get structure map to use HttpServerUtilityWrapper as the default instance. Nothing odd there. However, once I've added the declarations to my registry, structuremap is unable to resolve the instance and I get a 202 error.

This is my registry:

public class ApplicationRegistry : Registry
{
    public ApplicationRegistry()
    {
        Scan(scanThe =>
        {
            scanThe.AssembliesFromApplicationBaseDirectory();
            scanThe.WithDefaultConventions();
        });

        Scan(scanThe =>
        {
            scanThe.AssemblyContainingType<HttpServerUtilityBase>();
        });

        SetAllProperties(x =>
        {
            x.WithAnyTypeFromNamespaceContainingType<IFinancialYearRepository>();
            x.WithAnyTypeFromNamespaceContainingType<IUserManagementFacade>();
            x.WithAnyTypeFromNamespaceContainingType<IBulkTypeImporter>();
            x.OfType<ILog>();
            x.OfType<ISessionManager>();
        });

        For<IUnitOfWork>()
            .HttpContextScoped()
            .Use(() => new EFUnitOfWork(
                    ConfigurationManager.ConnectionStrings["PublishedEFSqlServer"].ConnectionString
                    )).Named("publishedUnitOfWork");

        For<IUnitOfWork>()
            .HttpContextScoped()
            .Use(() => new EFUnitOfWork(
                ConfigurationManager.ConnectionStrings["UnpublishedEFSqlServer"].ConnectionString
                )).Named("unpublishedUnitOfWork");

        For<ILog>()
            .AlwaysUnique()
            .Use(s =>
            {
                ILog loggger;
                if (s.ParentType == null)
                {
                    loggger = LogManager.GetLogger(s.BuildStack.Current.ConcreteType);
                }
                else
                {
                    loggger = LogManager.GetLogger(s.ParentType);
                }

                if (HttpContext.Current.User != null && HttpContext.Current.User.Identity.IsAuthenticated)
                {
                    ThreadContext.Properties["user"] = HttpContext.Current.User.Identity.Name;
                }
                return loggger;
            });

        For<ISessionManager>().Singleton();

        For<HttpServerUtilityBase>()
            .Singleton()
            .Use<HttpServerUtilityWrapper>();
    }
}

It all looks fine to me, but clearly I'm missing something. Also the line from the generated by calling WhatDoIHave() that refers to HttpServerUtilityBase seems to have a reference to HttpServerUtilityWrapper so I guess it should just work.

HttpServerUtilityBase (System.Web.HttpServerUtilityBase) 3bf840df-e159-4dcf-93ef-211bb7484698 Configured Instance of System.Web.HttpServerUtilityWrapper, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
Scoped as: Singleton

What am I missing?

FYI - you do not need to scan the assembly containing HttpServerUtilityBase. Scanning is only used to register types by convention. In this case, you are explicitly registering the HttpServerUtiltityBase type, so the convention scanning doesn't buy you anything. — Joshua Flanagan
– Joshua Flanagan, Commented Sep 7, 2010 at 16:47

ilivewithian · Accepted Answer · 2010-09-07 09:28:02Z

1

It turns out the fix is simple. I need to specify the constructor argument for the HttpServerUtilityWrapper

For<HttpServerUtilityBase>()
    .Singleton()
    .Use<HttpServerUtilityWrapper>()
    .Ctor<HttpServerUtility>().Is(HttpContext.Current.Server);

answered Sep 7, 2010 at 9:28

ilivewithian

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1 Comment

George R Over a year ago

For the ninjecteers: kernel.Bind<HttpServerUtility>().ToConstant(HttpContext.Current.Server); kernel.Bind<HttpServerUtilityBase>().To<HttpServerUtilityWrapper>().InSingletonScope();

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