I believe it is probably necessary for whatever the relationship is - to
accommodate the SCA composite as is. It should not be necessary to
modify anything in the SCA app to deploy against SM. Are you guys
thinking the same thing? Guillaume, is that what you are implying by
the "transform" idea?
Jean-Sebastien, yes this "upgrade" should happen. The existing test
cases fail because of the out-of-dateness.
From my user-centric perspective I think the value of the SCA-JBI
relationship here is just as Guillaume described it. SMX acts as the
integration platform for heterogeneous services (SCA, JBI or/and WS).
We'd like to be able to pull an SCA service/app out of the toolbox and
plug 'er into the bus right along side services from the JBI shelf.
Choreography over orchestration in this case - via the configuration of
the JBI container - and the xbean/servicemix configurations in the SUs.
Guillaume Nodet wrote:
Hi Jean-Sebastien !
The tuscany SE, as you said, is very old, and has never been finished
(that's why it is in the sandbox).
The idea was to be able to deploy SCA annotated POJOs onto it and leverage
Tuscany to host them.
I think there are some areas where I'd need a few explanations (see below).
We're investigating how SCA and JBI can be bridged. I'm thinking that one
way is to think about SCA as a
development designer and JBI as the runtime. So one goal is to investigate
how we could transform an SCA
assembly into a JBI Service Assembly: each java component would be deployed
onto the afore mentionned
Service Engine, a bpel implementation could be deployed onto the Ode
Service
Engine (etc...) while wires / bindings
would lead to several Service Units for Binding Components (HTTP, JMS,
etc...).
So I have a few questions that you may help answering:
* where does SDO comes in ? is it mandatory, optional, unspecified ?
* how is the mapping between the soap call and the java method
invocation specified ?
I know how JAX-WS can be used to specify the web methods, xml
mapping, but how can
you configure this in SCA ? This is also needed when you want to
translate a java call
to an xml invocation (when using client proxies / references to other
components).
On 6/25/07, Jean-Sebastien Delfino <[EMAIL PROTECTED]> wrote:
Guillaume Nodet wrote:
> Copying tuscany dev list ...
>
> On 6/22/07, Bruce Snyder <[EMAIL PROTECTED]> wrote:
>>
>> On 6/22/07, Guillaume Nodet <[EMAIL PROTECTED]> wrote:
>> > Thanks, great work !
>> >
>> > Sorry about these problems, but I guess this is a direct
>> consequence of
>> it
>> > being sandboxed :-(
>> > So you'll find that the SE is not complete, but the idea was to
>> implement a
>> > JBI binding for tuscany
>> > so that you can deploy SCA annotated POJOs on this SE. IIRC, the
>> provider
>> > part was working
>> > somewhat but I think the consumer part is missing (being able to
call
>> > external services through java
>> > proxies).
>> >
>> > I guess I stopped because I did not completely understood how the
xml
>> > mapping and java / wsdl
>> > mapping were to be written. While I see how JAX-WS works, there is
>> > something that have escaped
>> > me somehow with SCA (or maybe this isn't specified and that could
>> be the
>> > reason I did not found it).
>>
>> We should invite some Tuscany folks to discuss this topic so we can
>> work though it. Is anyone subscribed to the Tuscany dev list already
>> who can CC that list? I'm at a client site right now and don't have
>> the time to do it ATM.
>>
>> Bruce
>> --
>> perl -e 'print
>> unpack("u30","D0G)[EMAIL PROTECTED]&5R\"F)R=6-E+G-N>61E<D\!G;6%I;\"YC;VT*"
>> );'
>>
>> Apache Geronimo - http://geronimo.apache.org/
>> Apache ActiveMQ - http://activemq.org/
>> Apache ServiceMix - http://servicemix.org/
>> Castor - http://castor.org/
>>
Hi,
I work on Tuscany, I may be able to help with some of these questions :)
The servicemix-sca module under [1] seems to use an old level of SCA and
Tuscany. The SCA programming model and the Tuscany SCA SPIs have evolved
since then but they are pretty stable now so it might be the right time
to port servicemix-sca to SCA 1.0 and the Tuscany 0.90 release (or the
upcoming 0.91 release, which provides the same SPIs).
Do you have specific Tuscany or SCA questions that we can help with?
Could you describe the type of application and scenario supported by
servicemix-sca? Is there a sample showing how an application developer
will use Tuscany and ServiceMix together?
[1]
http://svn.apache.org/repos/asf/incubator/servicemix/trunk/sandbox/servicemix-sca/
--
Jean-Sebastien
