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Castle Windsor (or any IoC framework) and internal dependencies


Castle Windsor (or any IoC framework) and internal dependencies

By : Katy Landwier
Date : November 22 2020, 02:42 PM
Hope this helps
I believe it can't be internal, as you can't pass an internal type to a public constructor.
code :


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Internal logs for Castle Windsor

Internal logs for Castle Windsor


By : diana b
Date : March 29 2020, 07:55 AM
it fixes the issue Your call to WindsorContainer.Resolve<> will throw an exception if the resolution fails. You should log this exception in your "bootstrapping" code that is responsible for creating the container and resolving the needed component(s). The exception message typically tells you exactly what is wrong in excruciating detail.
To my knowledge, Windsor does not do any "internal" logging via log4net (perhaps one of the contributors can correct/affirm this). If you wish to log "internal" events, you can hook up to the event handlers on the kernel (accessible via WindsorContainer.Kernel). For example, there are ComponentRegistered and DependencyResolving events that allow you to take custom action on registrations and resolutions, respectively.
Injecting Dependencies using Castle Windsor

Injecting Dependencies using Castle Windsor


By : Thales Avila
Date : March 29 2020, 07:55 AM
With these it helps You can do this by using Castle Windsor collection/array/list resolvers.
Take a look: https://github.com/castleproject/Windsor/blob/master/docs/resolvers.md
code :
container.Kernel.Resolver.AddSubResolver(new CollectionResolver(container.Kernel));
container.Register(Component.For<IA>().ImplementedBy<CA>());
container.Register(Component.For<IA>().ImplementedBy<CB>());
class child
{
    child(IEnumerable<IA> objs)
    {}
}
Castle Windsor Inline dependencies

Castle Windsor Inline dependencies


By : frolin
Date : March 29 2020, 07:55 AM
it helps some times DependsOn works only one level down so You have to make Business depend on specific ILogger.
You can do a trick like this:
code :
    static void Main(string[] args)
    {

        var container = new Castle.Windsor.WindsorContainer();

        container.Register(
                Component.For<IHigherBusiness>()
                .ImplementedBy<HigherBusiness>()
                .DependsOn(Dependency.OnComponent(typeof(ISomeBusiness),
                            "BusinessWithExtendedLogger"))
            );
        container.Register(Component.For<ISomeBusiness>().ImplementedBy<Business>()
                .DependsOn(Dependency.OnComponent<ILogger, FullDetailLogger>())
                .Named("BusinessWithExtendedLogger")
            );
        container.Register(Component.For<ISomeBusiness>().ImplementedBy<Business>()
                .DependsOn(Dependency.OnComponent<ILogger, SimpleLogger>())
                .IsDefault()
            );
        container.Register(Component.For<ILogger>().ImplementedBy<FullDetailLogger>()
                .IsFallback()
            );
        container.Register(Component.For<ILogger>().ImplementedBy<SimpleLogger>());

        var business = container.Resolve<IHigherBusiness>();
        business.DoSomething();

        var normalBusiness = container.Resolve<ISomeBusiness>();
        normalBusiness.DoSomething();

        var logger = container.Resolve<ILogger>();
        logger.Log("Some Log... .");
        Console.ReadKey();

    }
Resolving dependencies with windsor castle

Resolving dependencies with windsor castle


By : TestEver
Date : March 29 2020, 07:55 AM
Does that help If you need a factory when using windsor the recommended approach would be to use the TypeFactoryFacility. You can find all about it in this link: http://docs.castleproject.org/Windsor.Typed-Factory-Facility-interface-based-factories.ashx
In general it is much easier then writing your own factories. Just create the interface and Windsor does the heavy lifting.
Castle Windsor - Dependencies on classes created outside of the castle

Castle Windsor - Dependencies on classes created outside of the castle


By : Satya
Date : March 29 2020, 07:55 AM
this one helps. In ASP.NET Core, the WebRequestLifestyle is called Scoped. You can retrieve it by 'cross-wiring' the dependency. I'm unsure whether cross-wiring is already built-in to Castle, but otherwise you can achieve this as follows:
code :
public void ConfigureServices(IServiceCollection services)
{
    // IHttpContextAccessor is required by the GetRequestService method.
    services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

    // Usual stuff here
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    // Cross-wire ASP.NET Core service that needs to be injected
    container.Register(Component.For<A>()
        .UsingFactoryMethod(_ => app.GetRequiredRequestService<A>()));

    // Usual stuff here
}
public static T GetRequiredRequestService<T>(this IApplicationBuilder builder)
    where T : class
{
    var accessor = builder.ApplicationServices.GetService<IHttpContextAccessor>();
    var context = accessor.HttpContext ?? throw new InvalidOperationException(
        "No HttpContext.");
    return context.RequestServices.GetRequiredService<T>();
}
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