RE: Re: issue 6401 - an outline of a proposal

Doug: I have an EPR to a source and I want Baseball scores which is
given as a topic. What steps do I take?

1) First topic is not yet a standard part of WS-E and outside the scope
of 6401. To illustrate the steps though, let's assume we adopted SAWSDL
that tags a bunch of operations in the notification wsdl as related to
"baseball".


2) There are many ways the subscriber can get the event source WSDL, but
let us say we use mex because we only know the EPR.
 
Steps:
1) Use MEX to get the event source WSDL from the EPR;
2) Retrieve the notification WSDL by following the policy assertions;
3) Find all the events operations tagged as "baseball";
4) Find the bindings of those event operations in notification WSDL;
5) Find the ports in the event source WSDL associated with the bindings
using policy assertions;
6) Select the bindings (if more than one);
7) Prepare the sink that is compatible to (or just implement) the
selected binding.
8) Send subscribe messages to the ports;

Li

Received on Tuesday, 4 August 2009 22:04:43 UTC