Castle Dictionary Adapter Example

CastleDictionaryAdapterExample.cs

using System;
using System.Configuration;
using Castle.Components.DictionaryAdapter;
using Castle.MicroKernel.Registration;
using Castle.Windsor;
using Rhino.Mocks;

namespace CastleDictionaryAdapterExample
{
    class Program
    {
        static void Main()
        {
            new DictionaryAdapterFactory().GetAdapter<IApplicationConfiguration>(ConfigurationManager.AppSettings);

            WindsorContainer container = new WindsorContainer();
            container.AddFacility<Castle.Facilities.FactorySupport.FactorySupportFacility>();

            container.Register(
                Component.For<IApplicationConfiguration>().UsingFactoryMethod(
                    () => new DictionaryAdapterFactory().GetAdapter<IApplicationConfiguration>(ConfigurationManager.AppSettings)));

            var configuration = container.Resolve<IApplicationConfiguration>();
            Console.WriteLine(configuration.EnableNewsletterSignup);


            var stubConfig = MockRepository.GenerateStub<IApplicationConfiguration>();
            stubConfig.EnableNewsletterSignup = true;

            Console.WriteLine(stubConfig.EnableNewsletterSignup);

            Console.ReadLine();
        }
    }

    class NewsletterSignupService
    {
        public bool Signup(string email)
        {
            if (!Boolean.Parse(ConfigurationManager.AppSettings["EnableNewsletterSignup"]))
                return false;

            return true; // technically this would go off to an external web service
        }
    }

    class NewsletterSignupServiceWithoutAppConfigDependency
    {
        private readonly IApplicationConfiguration _configuration;

        public NewsletterSignupServiceWithoutAppConfigDependency(IApplicationConfiguration configuration)
        {
            _configuration = configuration;
        }

        public bool Signup(string email)
        {
            if (!_configuration.EnableNewsletterSignup)
                return false;

            return true; // technically this would go off to an external web service
        }
    }

    public interface IApplicationConfiguration
    {
        bool EnableNewsletterSignup { get; set; }
    }
}

Thanks for the blog post and the gist. I have posted an expanded/updated version of it.