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Re: [bpel-dev] Re: question about deployment to Apache ODE
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Hi Sam,
the standard BPEL way is that you create two variables: v1in and v1out,
both typed to the messages that ws1 expects ( given that ws1 is a
request-response operation). Then v2in and v2out, typed to the messages
that ws2 expects. Now the messages behind the variables all have the
correct namespaces etc.
After invoking ws1 you add an assign that copies the contents of v1out to
v2in, and then use v2in to call ws2.
There are simplifications to that method (eg. using the fromPart / toPart
notation), but these are not yet supported im M3 (planning to support
fromPart/toPart in M4). Any other solution to that problem is proprietary
and does not conform to the BPEL specification.
HTH
Simon
Simon Moser, M.Eng.
Websphere Integration Mail: IBM Deutschland Entwicklung
Developer Development smoser@xxxxxx. GmbH
Team Lead BPEL Editor com Vorsitzender des
Dept. 4722, Bldg. Phone: Aufsichtsrats: Martin Jetter
71032-01, Room 086 +49-7031-16-43 Geschäftsführung: Herbert
Websphere Solutions and 04 Kircher
Services Fax: Sitz der Gesellschaft:
IBM Deutschland +49-7031-16-48 Böblingen
Entwicklung GmbH 90 Registergericht: Amtsgericht
Schönaicherstr. 220, D – Stuttgart, HRB 243294
71032 Boeblingen
sam wang
<samwzm@xxxxxxxxx
> To
Sent by: Michal Chmielewski
bpel-dev-bounces@ <michal.chmielewski@xxxxxxxxxx>
eclipse.org cc
Jonathan Coogan
<Jonathan.Coogan@xxxxxxxxxxxxxx>,
24.10.2007 03:39 "BPEL Designer project developer
discussions."
<bpel-dev@xxxxxxxxxxx>
Please respond to Subject
"BPEL Designer [bpel-dev] Re: question about
project developer deployment to Apache ODE
discussions."
<bpel-dev@eclipse
.org>
thanks for the quick reply and help, Michal!
As for the namespace problem, I think it is a big and common problem. For
example, we want to make
a simple BPEL, there are two web services--ws1 and ws2. ws1 is invoked
first and then ws2 is
invoked. In order to make this simple BPEL work, ws1's output must be
compatible with ws2's input.
However, usually ws1's namespace is different with ws2's, there is no way
to feed ws1's output
directly into ws2's input. As I know, it's a really painful process to
configure namespace when I
try to use ActiveBPEL designer. Taverna(http://taverna.sourceforge.net/)
seems solve this problem
very well. However, it's not a BPEL designer. It uses XScufl workflow
language. So I guess
namespace is a common problem for BPEL process, and I don't know how to
solve this problem. Does
there anyone know how Eclipse BPEL designer handles this problem?
Thanks!
Sammy
--- Michal Chmielewski <michal.chmielewski@xxxxxxxxxx> wrote:
> sam wang wrote:
> > Hi, Jonathan and Michal,
> >
> > Sorry to interrupt you. I got a problem about deployment Eclipe BPEL
process to Apache ODE.
> >
> > I use Eclipse BPEL designer to create a simple bpel process which only
invokes one remote
> > Bioinformatics web service(wublast). Its receive and reply activities
are placed in the
> process
> > body. The caller will resume execution as soon as the receive activity
is performed by the
> BPEL
> > process. In another word, it's a synchronized process.
> >
> > I tried to deploy this simple bpel process to Apache ODE. However, I
got confused when I try
> to
> > write the deployment descriptor (attached).
> >
> I have not looked at how the Apache ODE deployment descriptor is to be
> written.
> > Firstly, how to handle namespace? There will be multiple namespaces in
a BPEL process. For
> > example, the process itself will have its own namespace, each web
service has its own
> namespace.
> > In order to feed webservice1's output to webservice2's input, the
namespace should be handled
> > with. However, I am not sure how to deal with it. Any idea or
suggestion will be greatly
> > appreciated!
> >
> How about [in BPEL] a couple of variables, one that is of type
> message-1-from-service-1 the other that is of type
> message-2-from-service-2 and an assign somewhere between the receive and
> invoke ?
>
> Or am I missing something here .... ?
>
> >
> > Secondly, how to handle the client interface automatically generated by
Eclipse BPEL? For the
> > client interface, do I have to write <provide>|<invoke> for it? If so,
can I skip the <service
> > name> for it, since the client interface is not a real web service, and
I don't know what to
> put
> > as the service. I wonder if there is any chance that Jonathan can help
me write a deployment
> file
> > of Apache ODE based on the process files attached with this email.
> >
> I'll let Jonathan handle this one for now if he may.
> > Michal, could you please let me know the current status? For example,
when M4 will be
> available? I
> > expect that M4 release will offer help about deployment, right?
> >
> I think the only I can say with confidence about M4 is that it is being
> worked on. Not sure about dates at this point. Simon and Co. could
> provide some more feedback regarding the text editor integration into
> the BPEL designer.
>
>
> > Thank you very much!
> > Sammy
> >
> >
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam? Yahoo! Mail has the best spam protection around
> > http://mail.yahoo.com
>
>
> --
> Michal Chmielewski, CMTS, Oracle Corp,
> W:650-506-5952 / M:408-209-9321
>
> "Manuals ?! What manuals ? Son, it's Unix, you just gotta know."
>
>
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