code: @POST
      @Path("create")
      public Map<String, String> create(@FormParam("uri") String uri) 
              throws GuacamoleException {
  
          return Collections.singletonMap("identifier",
                  directory.create(QCParser.getConfiguration(uri)));
   
      }
docs: Parse the URI read from the POST input, add the connection
  to the directory, and return a Map containing a single key,
  identifier, and the identifier of the new connection.
  
  @param uri
  The URI to parse into a connection.
  
  @return
  A Map containing a single key, identifier, and the
  identifier of the new connection.
  
  @throws GuacamoleException
  If an error is encountered parsing the URI.