RE: [Bug 6401] Draft proposal of issue 6401

Wu,
  you seem to have said two different things:
1 -  We think such info should be gathered through some other metadata...
2 - event source MUST advertise the events by specifying the raw event 
messages in WSDL...

unless "other metadata" means WSDL, these seem to be in conflict.
Can you please show me what the WSDL would look like for a source that 
only supports wrapped?  Would it include both the raw and wrapped 
messages?

thanks
-Doug
______________________________________________________
STSM |  Standards Architect  |  IBM Software Group
(919) 254-6905  |  IBM 444-6905  |  dug@us.ibm.com
The more I'm around some people, the more I like my dog.



"Chou, Wu (Wu)" <wuchou@avaya.com> 
05/14/2009 04:18 PM

To
Doug Davis/Raleigh/IBM@IBMUS
cc
<public-ws-resource-access@w3.org>, "Li, Li (Li)" <lli5@avaya.com>
Subject
RE: [Bug 6401] Draft proposal of issue 6401






Doug,
This is a very good question. We think such info should be gathered 
through some other metadata, which is in agreement with your view 
expressed in 
http://lists.w3.org/Archives/Public/public-ws-resource-access/2009May/0086.html 
. 
Namely, the event source MUST advertise the events by specifying the raw 
event messages in WSDL and MAY specify additional delivery formats, e.g. 
wrapped interface, for the raw events. The wired forms of event messages 
are derived from the raw event messages, the format metadata (WSDL) and 
some other rules. 
Currently, we have two formats: unwrap (raw events) and wrap (defined in 
proposal 6429). We assume both raw events and the wrap interface have 
doc/lit bindings using either SOAP 1.1 or 1.2. 
When event message, possibly with multiple parts, is delivered using the 
"Wrap" format, the event message will be encapsulated inside the wrapper 
<wse:Notify> element underneath the SOAP Body. Logically, the <wse:Notify> 
element can be regarded as <xs:Choice> of <xs:sequence> of message parts 
(xs:element). 
For example, the following WSDL fragments specify a raw event 
"PurchaseEvent":
<message name="PurchaseEvent">
<part name="header" element="tns:PO"/>
<part name="body" element="tns:Invoice"/> </message>
<portType name="NotificationPortType">
<operation name="NotifyPurchaseEvent">
<input message="tns:PurchaseEvent"/>
</operation>
</portType>
<binding name="NotificationPortTypeSoap" type="tns:NotificationPortType">
<soap:binding style="document" transport="
http://schemas.xmlsoap.org/soap/http"/>
<operation name="NotifyPurchaseEvent">
<input message="tns:PurchaseEvent">
<soap:body parts="body" use="literal"/>
<soap:header message="tns:PurchaseEvent" part="header" use="literal"/>
</input>
</operation>
</binding>
The following WSDL fragments specify the binding for the wrap interface:
<binding name="GenericSinkPortTypeSoap" type="tns:GenericSinkPortType">
<soap:binding style="document" transport="
http://schemas.xmlsoap.org/soap/http"/>
<operation name="NotifyEvent">
<input message="tns:notifyEvent">
<soap:body parts="parameter" use="literal"/>
</input>
</operation>
</binding>
Using the wrap format, the "PurchaseEvent" event will be delivered in SOAP 
as follows:
<Envelope>
<Header>
<wsam:Action>
http://schemas.xmlsoap.org/ws/2004/08/eventing/wrap/GenericSinkPortType/NotifyEvent
</wsam:Action>
</Header>
<Body>
<wse:Notify actionURI="
http://www.example.com/NotificationPortType/NotifyPurchaseEvent">
<tns:PO>...</tns:PO>
<tns:Invoice>...</tns:Invoice>
</wse:Notify>
</Body>
</Envelope>
 
Thanks,
 
- Wu Chou

From: Doug Davis [mailto:dug@us.ibm.com] 
Sent: Wednesday, May 13, 2009 7:17 PM
To: Chou, Wu (Wu)
Cc: public-ws-resource-access@w3.org
Subject: Re: [Bug 6401] Draft proposal of issue 6401


Hi Wu, 
  could you help me understand how you see wrapped events working? Let's 
say a source only supports wrapped format.  If wsdl then shows just the 
wrapped element, with an xs:any as a child, then how does the sink know 
what events it'll get?  From a pure tooling (e.g. wsdl2java) perspective 
the wsdl is "good enough" - but from an event processing perspective, the 
wsdl didn't provide me any useful info - like what the xsd of the events 
are.  Likewise, how does the source know the format of the events to know 
how to formulate the filter expressions?  Are you assuming that this info 
would be gathered through some other metadata? 

thanks
-Doug
______________________________________________________
STSM |  Standards Architect  |  IBM Software Group
(919) 254-6905  |  IBM 444-6905  |  dug@us.ibm.com
The more I'm around some people, the more I like my dog. 


"Chou, Wu (Wu)" <wuchou@avaya.com> 
Sent by: public-ws-resource-access-request@w3.org 
05/05/2009 05:30 PM 


To
<public-ws-resource-access@w3.org>, <member-ws-resource-access@w3.org> 
cc
"Gilbert Pilz" <gilbert.pilz@oracle.com>, "Geoff Bullen" 
<Geoff.Bullen@microsoft.com>, "Li, Li (Li)" <lli5@avaya.com> 
Subject
Re: [Bug 6401] Draft proposal of issue 6401








Here is our concrete proposal of issue 6401 that was submitted to 6401 
Task team on 05/04/09. 
  
It is based on Gil's original proposal with amendments. An overview page 
is provided to illustrate the approach. 
  
This proposal should be treated as work in progress. 
Comments/suggestions/contributions are welcome and appreciated. 
  
Regards, 
  
- Wu Chou/Li Li 
  
Avaya Labs Research   [attachment "6401_proposal_v0.5.pdf" deleted by Doug 
Davis/Raleigh/IBM]

Received on Thursday, 14 May 2009 20:27:56 UTC