What is the quickest way to integrate Cocoon with JMS?
Is there a JMS Generator available anywhere?
In my case, I have the possibility to interact with services via JMS topics on which I can receive and publish XML messages (not SOAP). I would like to use Cocoon as a framework to produce HTML/WML/SVG interfaces to the services.
I looking to find the easiest way to:
1) Connect to a number of JMS topics.
2) Receive XML in JMS text messages and generate SAX events for Cocoon.
3) Take SAX events generated by Cocoon and generate and publish JMS text messages to specified topics.
Any advice is appreciated.
Perhaps someone will have a different perspective, but...
Integrating JMS into Cocoon can be very trivial (I've done it before twice). But what you are wanting to do is not as trivial. What you are looking for amounts to creating a new request/response environment for Cocoon.
The good news is that Cocoon is built for this and there are already two "environments" built into the product: the servlet one that most are familiar with and the CLI (command line interface) which does not require any servlet environment to function. The bad news is that this may take a good understanding of more of the Cocoon internals than you're willing to aquire.
There may also be shortcuts (hacks) you could pursue if the full blown solution proves unworkable for you.
To start out, I'd look into the improved 2.1 CLI code, including especially the Cocoon "Bean". There are others on the list who may be able to help you with that end of things if you let them know you are looking to use the Cocoon Bean to create an alternative request/response environment. (the fact that JMS is involved is almost totally irrelevant)
As to hacks, you could create a totally separate JMS based program which would convert from message topics to existing request environments (cli or servlet) and invoke that from your code. There would be negative issues to deal with in this approach (like probably performance).
HTH, Geoff
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