Event driven job initiation

[vbap]

Hi,
I would like some advice on this -

We would like to start a job based on events received by it such as a web service call initiating a job/transformation. Right now, I can do this in a way such that the job runs in an interval and does some polling for a specific file/data to process. Is there a way we can do this in an existing plug-in, new plug-in or change in the Job->Start step that can be triggered through a web service or JMS event? What is the best way for PDI be run as a 'server' to accept incoming events from number of sources such as
-Web service
+like a HTTP Post done with some data will trigger a job to process that data contained in HTTP Post
+Soap web service calls
-JMS event
+we could write a JMS plug-in but not sure how we can keep the job continuously alive listening to JMS messages to be received
-Socket read
-custom event handler

I have looked at some other threads related to always running jobs and such but did not find a clear solution on what is the best way to proceed.

Appreciate any ideas on this.

Vid

[darrell.nelson]

Look here: http://wiki.pentaho.com/display/EAI/Carte+User+Documentation

or here: http://forums.pentaho.org/showthread.php?t=70368&highlight=carte

[vbap]

Thanks for the links. The discussion was very useful. I think the followup question I have is whether there is a way to pass "data" also which is a part of the event so the transformation can read the data also when it gets triggered. I know I might be asking too much here.

One thought was a HTTP POST with some <data rows> are sent remotely to a server, and a specific transformation is started and starts reading rows as input to specific step specified. So POST specifies
<KTR/KJB> in a xml zipped together like remote execution with flag checked does AND
<datarows> are also sent in POST that says use this data as input to this special step or standard step.

Thanks,
Vid