Example of what I'm trying to achieve in Simple.Web using behaviors.

Simple.Web.Behaviors.Example.cs

namespace MyCompany.Product
{
	// I tend to utilize immutable value objects in my domain and am
	// attempting to, basically, inject them into my handlers via
	// a behavior--tying into the Simple.Web pipeline.
	public class Foo
	{
		private readonly string _value;
		public string Value { get { return _value; } }
		
		public Foo(string value)
		{
			_value = value;
		}
	}
	
	[RequestBehavior(typeof(SetFoo))]
	public interface IRequireFoo
	{
		Foo MyFoo { set; }
	}
	
	public static SetFoo
	{
		public void Impl(IRequireFoo handler, IContext context)
		{
			// Given a handler, I would like to extract out the values
			// that were pulled out of the UriTemplate
			
			var uriValues = // somehow get the key-value pairs extracted from the URL
					// that match the "matched" UriTempalate.
					
			// And I'm looking to do something like:
			handler.FooId = new Foo(uriValues["fooId"]);
		}
	}
	
	// Given the UriTemplate on this class and a request to
	// /foos/12345/bar/54321, I am looking to extract
	// something like:
	// UriKVPs = {
	//   { "fooId", "12345" },
	//   { "barValue", "54321" }
	// }
	[UriTemplate("/foos/{fooId}/bar/{barValue}")]
	public class FooHandler : IGet, IRequireFoo, IOutput<string>
	{
		public Foo FooId { get; set; }
		public string Output { get; set; }
		public string BarValue { get; set; }
		
		public Status Get()
		{
			Output = FoodId.Value;
			return 200;
		}
	}
	
	// I am trying to avoid something like:
	public interface IRequireFoo2
	{
		string FooValue { set; }  // Simple.Web will bind to this
		Foo FooId { set; }  // And then I can use the string to create the Foo
	}
}