Resolve a URI to an EndpointAddress - wcf

Question

I currently have a WCF client that is able to do ad-hoc service discovery to find (unknown) services running on the local subnet. I would like to implement a way for the user to specify a service endpoint to use by entering a URI into a text box, and for the client to resolve this URI to an EndpointAddress, and in the process gather additional metadata about the service. Namely, I need to gather the EndpointIdentity and additional data exposed in the Extensions property of the EndpointDiscoveryBehavior.
I am trying to achieve this by using DiscoveryClient.Resolve(), but I am only receiving null for the ResolveResponse.EndpointDiscoveryMetadata property.
String Address = "net.tcp://machine-name:12345/MyService"
DiscoveryClient discoveryClient = new DiscoveryClient(new UdpDiscoveryEndpoint());
var criteria = new ResolveCriteria()
{
Address = new EndpointAddress(Address)
};
var result = discoveryClient.Resolve(criteria);
//scv is null here.....
var svc = result.EndpointDiscoveryMetadata;
I've found a lot of information out there regarding DiscoveryClient.Find(), but not so much about DiscoveryClient.Resolve().
So my questions are:
Is this the intended use of DiscoveryClient.Resolve()?
Is MetadataResolver more appropriate here?
How does one resolve an URI to a EndpointAddress and obtain other metadata?

Answer 1

I think you are trying to replicate functionality of svcutil.exe. In that case you may have to resolve the mex endpoint first and query service metadata from that endpoint (IMetaDataExchange). The SPN identity should be in the metadata.
Also see reference http://msdn.microsoft.com/en-us/library/ms733130.aspx

Answer 2

I achieved what I wanted to do like so:
String Address = "net.tcp://machine-name:12345/MyService"
DiscoveryClient discoveryClient = new DiscoveryClient(new UdpDiscoveryEndpoint());
var endpoint = new EndpointAddress(new Uri(Address));
var criteria = new ResolveCriteria()
{
Address = endpoint
};
var result = discoveryClient.Resolve(criteria);
var mexClient = new MetadataExchangeClient(MetadataExchangeBindings.CreateMexTcpBinding());
var contracts = new List<ContractDescription>() { ContractDescription.GetContract(typeof(RuntimeService.Services.IWorkflowService)) };
var metaResult = MetadataResolver.Resolve(contracts, endpoint, mexClient);
var svc = metaResult.First();
I am able to get to the extension data through result and svc provides me with the correct EndpointAddress complete with the correct identity.
Thanks to #YK1 for pushing me in the right direction.