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From Simon Nash <n...@apache.org>
Subject Re: [jira] Commented: (TUSCANY-2445) [Proposal] Support of conversational web service
Date Tue, 01 Jul 2008 21:28:27 GMT
Sun Yang wrote:
> Hi,
> 
> Thanks for your comment and considering applying my patch. I am thinking 
> to do a refactoring after this discussion. So please give me a little 
> time before I make it better. Currently, I want to get the answers for 
> the following questions based on our discussion in this thread before I 
> start the refactoring.
> 
> 1. what action we should do when client use endSequence command to end 
> the conversation from the line protocol level? Do we need to manually 
> recycle the conversation variables or just wait for its timeout?
> 2. how to switch between WS-Addressing/WS-RM conversation 
> implementation? Is a preference OK for this situation.
 >
I think the right approach would be to use a policy intent/policySet
so that the selection could be configured in SCDL on a per-wire
or per-binding basis.  The SCA 1.0 Web Service binding spec defines a
policySet that can be used for exactly this purpose.  Here's the
definition (see section 2.2.3):

<policySet name="WSRM-Sequence-based-conversation"
         provides="sca:conversation"
         appliesTo="sca:binding.ws">
     <wsp:Policy>
     <wsrmp:RMAssertion
             xmlns:wsrmp="http://docs.oasis-open.org/ws-rx/wsrmp/200608"/>
     </wsp:Policy>
</policySet>

If this policySet is specified, WS-RM conversation should be used.  If not,
the current WS-Addressing conversation implementation should be used.

   Simon

> 3. how to solve the conversation state confliction between the service / 
> reference side (maybe it is out of the scope of this improvement)?
> 
> I will provide a new patch bundled with tests after the refactoring.
> 
> Regards,
> Yang Sun
> 

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