I have a web application that needs to allow the end user to kick off some integrations with third party APIs, such as REST and SOAP endpoints, along with db queries that take awhile to process. One of the intergrations usually takes 30mins to an hour to complete, while another can take hours to fully complete, due to an extremely slow REST webservice provided by a SaaS vender.

I am trying to figure out the best method to handle these requirements. So far I have reviewed using @Observer by raising asynch events, and @Asynchronous methods. I have also briefly looked at using JbossMQ or jBPM. At this point im testing kicking off the processes with asynch observer events. But I havent fully converted the core java app's to be used by the seam app, so I dont know if they wont time out or anything.