One clarification :

 I don't think there's a way to detect whether or not MTOM should be
used on the client side of things.

Given the assertion below (which is advertised by a service in its WSDL) the WS-Policy aware client can inspect the service's policy assertions and find out that it may use MTOM if it wishes to...Furthermore, the policy-aware client (NET is most likely able to do it) can decide through the intersection if it wants to talk to this service depending on whether it supports MTOM or not

Cheers, Sergey

----- Original Message ----- From: "Sergey Beryozkin" <[EMAIL PROTECTED]>
To: <cxf-user@incubator.apache.org>
Sent: Wednesday, April 18, 2007 4:33 PM
Subject: Re: MTOM "By Request"


Hi

This is exactly what an MTOM policy assertion is for, please see Optional 
assertions in the policy primer at

http://www.w3.org/TR/2007/WD-ws-policy-primer-20070330/
and the MTOM assertion spec :
http://schemas.xmlsoap.org/ws/2004/09/policy/optimizedmimeserialization/

The service which wishes to support both MTOM-aware and MTOM-unaware clients 
will just do :
in <wsdl:service> or wsdl:service/wsdl:port :

<Policy>
  <mtom:optimizedMimeSerialization optional="true"/>
</Policy>

The server then determines whether to use the MIME processing or not depending 
on the presence of the a related mime header
Cheers, Sergey

----- Original Message ----- From: "Dan Diephouse" <[EMAIL PROTECTED]>
To: <cxf-user@incubator.apache.org>
Sent: Wednesday, April 18, 2007 4:21 PM
Subject: Re: MTOM "By Request"


How would this work from the Client side? Would it just be always or never
then? I don't think there's a way to detect whether or not MTOM should be
used on the client side of things.

BTW - I fixed your bugs in SVN. We haven't published a new snapshot quite
yet though. That should happen later today I would think.

- Dan

On 4/18/07, Christopher Moesel <[EMAIL PROTECTED]> wrote:

According to the link below, the .NET 2.0 w/ WSE 3.0 server supports a
feature like this:

<quote from link>
Note: There are three server MTOM modes: "optional", "always", and
"never".

Always means that the service "always" requires MTOM messages from the
client and will "always" return response messages using MTOM.

Never means that MTOM will never be used-and the service will reject
MTOM requests.

Optional (the default) means the service will respond in kind to the
type of message sent by the client. So if the client sends an MTOM
request, it will respond with an MTOM response.
</quote from link>

http://www.agilefactor.com/agiledamon/2006/01/mtom-and-microsoft-web-ser
vice.html

-Chris

-----Original Message-----
From: Christopher Moesel [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 18, 2007 10:35 AM
To: cxf-user@incubator.apache.org
Subject: MTOM "By Request"

I don't know if this goes against any specs or is too difficult to
implement, but it seems to me that this would be a neat feature:

MTOM By Request:
- If a request comes in using MTOM, then respond using MTOM.
- If a request comes in using text/xml, then respond with test/xml.

This way, a single deployed service can support both MTOM-enabled and
non-MTOM-enabled clients.

Any thoughts?

-Chris




--
Dan Diephouse
Envoi Solutions
http://envoisolutions.com | http://netzooid.com/blog


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