On Mar 10, 2008, at 10:35 AM, Alex Boisvert wrote:
On 3/10/08, Fakhri Alam Khan <[EMAIL PROTECTED]> wrote:
Can you please answer my query about ODE engine,
"Does ODE support to invoke WSRF services ?"
I'm looking for it but didn't find anything about it .
As far as I know, the answer is no. It's never been discussed on the
mailing lists and there's no explicit support in the code.
I can affirm Alex's answer of "no", although it's not impossible.
The most difficult part of integrating WSRF resources into a BPEL
process is dealing with the security and delegation requirements that
WSRF resources have (in the general case), and that's work that needs
to be done in the protocol layer (i.e., in AXIS2 or in ServiceMix) as
opposed to in ODE. AFAIK, the only release-worthy work that was done
in this area was done to get an AXIS1 layer (that's part of some other
BPEL engine whose name I've forgotten) working with WS-GRAM for the
CaBIG project.
One "feature" would be the ability to bpel:invoke WSRF resources
through WS-GRAM, and I spent some time looking at how to go about that
once upon a time. Other than doing direct implementation of the WS-
GRAM protocols in the integration layer, one approach would be to
implement portions of the WS-GRAM protocol as a BPEL process and then
use that process as a proxy to the WS-GRAM endpoints. (The BPEL
process would handle the notifications, security negotiation, etc.)
It would be a great thing since orchestration (e.g., BPEL) fills an
important role in building software for the grid and ODE is the only
liberally-licensed (and also the best, IMHO) runtime out there.
I'm sure that there are folks out there working on and thinking about
this right now, so they may chime in, too.
Best.
Paul Brown
[EMAIL PROTECTED]
[EMAIL PROTECTED]
