[Resteasy-developers] Connected resources

[Ian B. <ibu...@re...>]

One of the features of RESTful web services described in the ORA book  
"RESTful Web Services" is that of hypermedia connections in resource  
representations.   I can't find a way (although I'm very new to it) in  
JAX-RS or resteasy to put a link to another resource in my  
representation.  Is there a way to get the URL of another resource  
inside of resteasy?

Example:

I have a system that is a glorified keystore.  A user is referenced by  
GUID, the key part of the keystore has a name.  The value can be  
either a simple scalar type (int, long, string, etc) or an array of  
them.

My resources would look something like:

@Path("/attributes/{key}/{definition}")
public class KeyResource{}


@Path("/attributes/{userguid}/{key}")
public class UserKeyResource{}

@Provider
@ProduceMime("text/xml")
public class UserAttributeXmlSerializer implements MessageBodyReader,  
MessageBodyWriter {

public void writeTo(Object o, Class aClass, Type type, Annotation[]  
annotations, MediaType mediaType,
         MultivaluedMap multivaluedMap, OutputStream outputStream)
         throws IOException, WebApplicationException {

         // build representation of the 'values' part of the UserKey  
resource
...

       // now I want to add a link to the key resource.  This allows  
the client to find out what scalar type or array this value represents
       // there is where I'd really like to be able to get the actual  
URL for a given 'key' resource
...
     }

}

So the representation that I want to send to the client looks like this:

<keyvalue>
   <values>
     <value>123</value>
   </values>
   <key>http://somehost/somecontext/atributes/somekey</key>
</keyvalue>

Any ideas or answers greatly appreciated.

Thanks,

Ian.