Translate odata uri to expression

Question

I'd like to use an action filter to translate an Odata uri to a Linq expression. I'm doing this because i'm using the resulting expression to query nonSQL line of business systems. In the WCF web api this was trivial because the translated query was appended as a property of the the request object, as such:

var query = (EnumerableQuery)request.Properties["queryToCompose"];

That seems to have disappeared. Are there any public api's i can use to accomplish this?