RE: [ws-rx] issue 115: clarifying question

From
Gilbert Pilz <>
Date
2006-04-25T02:55:40+00:00
ID
Thread
RE: [ws-rx] issue 115: clarifying question
So you are saying 
that the definition of qname of the 
header is the reference to the extension? This means that, for every 
extension for which I want mU semantics, I need to define a unique header? Why is this preferable to defining a single new 
attribute?

 

What if I extend something like the 
SequenceAcknowledgement header? Suppose an RMD is returning a message into 
which it inserts two 
separate SequenceAcknowledgement's, one of which has a mustUnderstand extension and the 
other which does not. It seems 
that, using your mechanism, an 
RMS that did not understand the extension would not be able to 
process either of the acknowledgments despite the fact that one of them is 
not extended in any way. What if there were three SequenceAcknowledgement 
headers in the same message; one that carries a mustUnderstand extension, 
another that carries a mayIgnore extension, and a third that isn't extended at 
all?

 

- 
gp

  

  
  From: Christopher B Ferris 
  [mailto:] 
Sent: Monday, April 24, 2006 6:07 
  PM
To: Gilbert Pilz
Cc: wsrx
Subject: Re: 
  [ws-rx] issue 115: clarifying question

  

Gil, 

Actually, I had something more like this in 
  mind: 

<?xml version="1.0" 
  encoding="UTF-8"?>
<S:Envelope xmlns:S="http://www.w3.org/2003/05/soap-envelope"
xmlns:wsrm="http://docs.oasis-open.org/ws-rx/wsrm/200604" 
xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" 
  
xmlns:foo="http://example.org/foo"
xmlns:wsa="http://www.w3.org/2005/08/addressing">
<S:Header>
 <foo:SecureRM 
  S:mustUnderstand="1"/>
 <wsa:MessageID>
  
  http://Business456.com/guid/0baaf88d-483b-4ecf-a6d8-a7c2eb546817
 </wsa:MessageID>
 <wsa:To>http://example.com/serviceB/123</wsa:To>
  
   <wsa:Action>http://docs.oasis-open.org/ws-rx/wsrm/200604/CreateSequence</wsa:Action>
 <wsa:ReplyTo>
  
  <wsa:Address>http://Business456.com/serviceA/789</wsa:Address>
 </wsa:ReplyTo>
</S:Header>
<S:Body>
 <wsrm:CreateSequence>
  
   <wsrm:AcksTo>
     <wsa:Address>http://Business456.com/serviceA/789</wsa:Address>
  
   </wsrm:AcksTo>
  
   <wsse:SecurityTokenReference>
     ...
  
   </wsse:SecurityTokenReference>
 </wsrm:CreateSequence>
</S:Body>
</S:Envelope>

Cheers, 

Christopher Ferris
STSM, Software Group Standards 
  Strategy
email: 
blog: 
  http://www.ibm.com/developerworks/blogs/dw_blog.jspa?blog=440
phone: +1 508 
  377 9295 

"Gilbert Pilz" 
  <> wrote on 04/24/2006 05:41:23 PM:

> 
  During the conference call of 4/20/2006 Chris asserted that you can 
> 
  use a SOAP header with a mustUnderstand attribute to flag the fact 
> 
  that some element in either another header or in the message body is
> 
  an extension that must be understood by the receiver. I'm not sure I
> 
  understood exactly what Chris thought this should look like. For 
> 
  example, imagine the following CreateSequence message. The extension
> 
  elements have been marked in bold. What is supposed to go in the 
> 
  <wsrm:Extension> header?
> 
> <?xml version="1.0" 
  encoding="UTF-8"?>
> <S:Envelope 
  xmlns:S="http://www.w3.org/2003/05/soap-envelope"
> 
  xmlns:wsrm="http://docs.oasis-open.org/ws-rx/wsrm/200604"
> 
  xmlns:wsa="http://www.w3.org/2005/08/addressing">
> 
   <S:Header>
>   <wsrm:Extension 
  S:mustUnderstand="1">
>     ????
>   
  </wsrm:Extension>
>   <wsa:MessageID>
>   
   http://Business456.com/guid/0baaf88d-483b-4ecf-a6d8-a7c2eb546817
> 
    </wsa:MessageID>
>   
  <wsa:To>http://example.com/serviceB/123</wsa:To>
>   
    
  <wsa:Action>http://docs.oasis-open.org/ws-rx/wsrm/200604/CreateSequence
> 
  </wsa:Action>
>   <wsa:ReplyTo>
>   
   <wsa:Address>http://Business456.com/serviceA/789</wsa:Address>
> 
    </wsa:ReplyTo>
>  </S:Header>
> 
   <S:Body>
>   <wsrm:CreateSequence>
>   
    <wsrm:AcksTo>
>       
  <wsa:Address>http://Business456.com/serviceA/789</wsa:Address>
> 
      </wsrm:AcksTo>
>     
  <wsrm:SecurityComposition>
>       
  <wsrm:Identifier>
>         
  http://docs.oasis-open.org/ws-
> 
  rx/wsrmsp/200604/profile/http_auth/samenode
>       
  </wsrm:Identifier>
>     
  </wsrm:SecurityComposition>
>   
  </wsrm:CreateSequence>
>  </S:Body>
> 
  </S:Envelope>
> 
> I'm sure that most of us could all come 
  up with a reasonable design 
> to do what you suggest, but for the 
  purposes of further discussion 
> I'd like to know what design Chris had 
  in mind?
> 
> - gp