O.K. great. In the meantime, do you want to work on moving the
databinding framework pieces into core assuming no one objects?
Jim
On Sep 20, 2006, at 11:30 AM, Raymond Feng wrote:
Hi, Jim.
Thanks for the prompt response. I'll be waiting for the fix to
complete the databinding integration story. If I can help here,
please let me know.
What I meant "CompositeContext.locateService
(<compositeReferenceName>) " is to get a proxy against the
composite reference directly and invoke it instead of
going through a component reference (which is wired to the
composite reference). Basically, it is the case b) in the orginal
note.
Thanks,
Raymond
----- Original Message ----- From: "Jim Marino"
<[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, September 20, 2006 12:03 AM
Subject: Re: How can we insert a DataBindingInterceptor for the
outbound wire of a composite-level reference?
On Sep 19, 2006, at 11:45 PM, Raymond Feng wrote:
Hi,
I raised a similar issue on this list before but I didn't get any
responses. When I debugged a test case from Rick today, I found
it was due to same problem.
Let's assume we have composite level reference with Axis2 web
service binding.
<reference name="RemoteInteropDocService">
<!-- interface.wsdl interface="http://soapinterop.org/
#wsdl.interface(DocTestPortType)"/ -->
<interface.java interface="org.soapinterop.DocTestPortType"/>
<binding.ws endpoint="http://soapinterop.org/#wsdl.endpoint
(interopDocSvc/interopDocPort)" location="wsdl/interopdoc.wsdl"/>
</reference>
Physically, there are two service contracts involved for this
reference.
1) The interface declared in <interface.xxx>. I assume it's for
the inbound wiring. For example, you can have a reference at a
component being wired to this reference (
component.reference --> composite.reference).
2) The WSDL portType used by the <binding.ws>. It really defines
the contract for the outgoing request. With Axis2, AXIOM is the
databinding. If a portType is not declared for binding.ws, we
should derive it from the interface.xxx (Java2WSDL could be used
for interface.java).
We may have two cases (SC: ServiceContract):
a) component.reference (SC1) --> composite.reference (SC2) -->
Axis2 web service (SC3)
b) composite.reference (SC2) --> Axis2 web service (SC3)
(CompositeContext.locateService(<compositeReferenceName>) is
used to make the invocation)
In case a), the DataBindingInterceptor will be added to the wire
(to be precise, SC1.outbound wire) if SC1 and SC2 require some
mappings.
But we don't have a way to add a DataBindingInterceptor between
SC2 and SC3. As a result, case b) is failing (Rick's test case).
I have tried to do this in the BindingBuilder but it doesn't
seem to be very straightforward with the following observations.
1) Wires are created for Reference by the WireService after the
Reference instance is created by a builder.
2) No outbound wire is created for Reference.
3) WirePostProcessor is not triggered for case b).
One thing I can think of is to allow the builder to set an
optional outbound service contract for the Reference and the
WireService will create the outbound wire for Reference in this
case. And the TargetInvoker should be added to the outbound wire
instead of inbound wire. During connecting, the Connector will
trigger the WirePostProcessor to mediate the inbound wire and
outbound wire. Then we have a chance to add a
DataBindingInterceptor to mediate SC2 and SC3.
On the issue of the outbound wire added to a composite reference
you are right, there should be one. I spoke to Ignacio about this
since it touches on some of the callback and composite reference
work but since I've been out, he should have the latest on if
this was added in (I'm guessing not). If not, I'm sure either he
or I can look into doing that over the next day or so. In any
event, the only case I can think of where we need a mediation
"inside" a reference is when the interface is not compatible with
the binding WSDL.
One further question: what d you mean by
"CompositeContext.locateService(<compositeReferenceName>) is used
to make the invocation"?
Jim
Any thoughts?
Thanks,
Raymond
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