W3C home > Mailing lists > Public > public-ws-resource-access@w3.org > April 2009

Re: issue 6432 - yet another proposal

From: David Snelling <David.Snelling@UK.Fujitsu.com>
Date: Thu, 9 Apr 2009 16:09:54 +0100
Cc: Yves Lafon <ylafon@w3.org>, Asir Vedamuthu <asirveda@microsoft.com>, Doug Davis <dug@us.ibm.com>, "public-ws-resource-access@w3.org" <public-ws-resource-access@w3.org>
Message-Id: <87FD994F-DC17-48C3-A3AF-EA0B6A5C844D@UK.Fujitsu.com>
To: Gilbert Pilz <gilbert.pilz@oracle.com>

I will try this with colour:
<s:Envelope . . .>

Red: General SOAP layer.
Green: WSE Application Layer.
Blue: WS-Addressing infrastructure.

OK the important point is that no matter what delivery model I want to  
use, I only change blue and red text. The beauty of Eventing is that  
the green XML stays the same across all the use cases we have discussed.

For wse:Push: In the blue NotifyTo EPR include a sensible address.

For wsman:PushWithAck: In the blue NotifyTo EPR include an address and  
possibly policy indicating reliable delivery required. This will means  
some more stuff will show up in red and possibly orange (for the  
reliable messaging) on the delivered messages.

For wsman:Pull: In blue include either an MC special URI or the actual  
address of a WS-Notification Pull point.

For wsman:Events: This is the same as wsman:PushWithAck which affects  
only the blue, red, and orange XML, but using a format provided by WS- 
Management V2.0 in some pink XML.

Notice: No Green XML changes!!!

In fact existing implementations have to change NOTHING in their  
semantics. They will need to understand the new namespace and learn  
not to look for the Mode attribute. The semantics of Eventing do not  

On 08 Apr 2009, at 20:08, Gilbert Pilz wrote:

> I think that, in this context, the term "opaque" might be a red- 
> herring. The point is that a URI like "http://docs.oasis-open.org/ws-rx/wsmc/200702/anonymous?id=1447d9c0-246a-11de-8c30-0800200c9a66 
> " requires neither more nor less understanding at the application  
> layer (in this case the component that processes wse:Subscribe  
> requests) than a URI like "http://www.w3.org/2005/08/addressing/anonymous 
> " or "http://webservice.bea.com/ohai/lolcatz".
> I think part of the problem might be that we are all assuming  
> different processing models. Look at the following request and tell  
> me how you think it should be handled. If you could be somewhat  
> specific about which layer (ws-addr layer, general SOAP layer,  
> wse:Subscribe logic, etc.) does/checks what, that would be helpful:
>  <s:Envelope . . .>
>   <s:Header>
>     <wsa:Action>http://www.w3.org/2009/02/ws-evt/Subscribe<wsa:Action>
>     <wsa:MessageID>uuid:d7c5726b-de29-4313-b4d4-b3425b200839</ 
> wsa:MessageID>
>     <wsa:ReplyTo>
>       <wsa:Address>http://www.w3.org/2005/08/addressing/anonymous</ 
> wsa:Address>
>     </wsa:ReplyTo>
>     <wsa:To>http://www.example.org/oceanwatch/EventSource</wsa:To>
>   </s:Header>
>   <s:Body>
>     <wse:Subscribe>
>       <wse:Delivery>
>         <wse:NotifyTo>
>           <wsa:Address>http://www.w3.org/2005/08/addressing/ 
> anonymous</wsa:Address>
>         </wse:NotifyTo>
>       </wse:Delivery>
>     </wse:Subscribe>
>   </s:Body>
> </s:Envelope>
> - gp
> Yves Lafon wrote:
>> On Tue, 7 Apr 2009, Gilbert Pilz wrote:
>>> WS-Addressing 1.0 - Core defines two "special" URIs;
>>> "http://www.w3.org/2005/08/addressing/anonymous" and
>>> "http://www.w3.org/2005/08/addressing/none". Messages targeted to  
>>> either
>>> of these URIs are processed differently from messages targeted to
>>> "normal" URIs such as "http://webserivce.bea.com/. . .".
>> Well, they are different, but unless you know WS-Addressing, or  
>> unless you resolve http://www.w3.org/2005/08/addressing/anonymous  
>> and find out the relationship between this URI and the WS- 
>> Addressing spec.
>> If you resolve http://webservice.bea.com/... you will probably have  
>> information about the endpoint, or you may know it in advance from  
>> another document. So both URIs are opaque, unless you know their  
>> semantic.

Take care:

     Dr. David Snelling < David . Snelling . UK . Fujitsu . com >
     Fujitsu Laboratories of Europe Limited
     Hayes Park Central
     Hayes End Road
     Hayes, Middlesex  UB4 8FE
     Reg. No. 4153469

     +44-7590-293439 (Mobile)

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Received on Thursday, 9 April 2009 15:20:50 UTC

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