Get controller name

Question

In WebApiConfig.cs i have the following

public static void Register(HttpConfiguration config)

{



   config.MapHttpAttributeRoutes(); 



   config.Services.Replace(typeof(IHttpControllerSelector),

               new MyApiControllerSelector(config));



   //code omitted for brevity

}

then in the MyApiControllerSelector.cs i want to get the controller

public override HttpControllerDescriptor SelectController(HttpRequestMessage request)

        {           

            var routeData = request.GetRouteData();           



            var controllerName = (string)routeData.Values["controller"];



            //code omitted for brevity

        }

Pretty simple and it worked great but now using attribute routing i think it needs a different approach? - as i can't seem to find a simple way

I've tried

var controllerName = request.GetActionDescriptor().ControllerDescriptor.ControllerName;

which doesn't work.

Then reading the source with debugging lead me to

request.GetRouteData().Values["MS_SubRoutes"]

So now I have

string subRoutesKey = "MS_SubRoutes";



var attributedRoutesData = routeData.Values[subRoutesKey] as IEnumerable<IHttpRouteData>; 

var subRouteData = attributedRoutesData.FirstOrDefault();



var actions = (ReflectedHttpActionDescriptor[])subRouteData.Route.DataTokens["actions"];

var controllerName = actions[0].ControllerDescriptor.ControllerName;

which works but it has to be a simpler way?

UPDATE

@KiranChalla asked what's my use case so i'm posting the remaining code.
Basically i'm parsing version media type

Accept: application/vnd.app.{resource}.v{version}+json

from request and returning a HttpControllerDescriptor depending on the version.

            HttpControllerDescriptor oldControllerDescriptor;

            if (controllers.TryGetValue(controllerName, out oldControllerDescriptor))

            {

                var apiVersion = GetVersionFromMediaType(request);



                var newControllerName = String.Concat(controllerName, "V", apiVersion);



                HttpControllerDescriptor newControllerDescriptor;

                if (controllers.TryGetValue(newControllerName, out newControllerDescriptor))

                {                    

                    return newControllerDescriptor;

                }               

                return oldControllerDescriptor;

            }

            return null;

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Answer 1

As confirmed by @KiranChalla there is no simpler way then the one I've already implemented, except the minor suggestion to use GetSubRoutes()

var attributedRoutesData = request.GetRouteData().GetSubRoutes();
var subRouteData = attributedRoutesData.FirstOrDefault();

var actions = (ReflectedHttpActionDescriptor[])subRouteData.Route.DataTokens["actions"];
var controllerName = actions[0].ControllerDescriptor.ControllerName;

Get controller name

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