Can anybody tell me which product in JEMS we can use to transform a message, for example from a csv format to xml or even from xml to xml, Because I cant find any such product. If it is really not there how can JEMS be a middleware suite because message transformation is a basic need for middleware architectures.
XSLT and HSQL DB (in its CSV read-mode) are useful for handling these and are provided with JBoss. You have to write this part yourself, it's quite easy.
The difficult part of handling messages (persistence, transactions, threading, etc.) is handled by JBoss.