Some additional information, pasting snippet of jboss-esb.xml. smooks-res.xml contains the transformation rules.
<action class="org.jboss.soa.esb.smooks.SmooksAction" name="simple-transform">
<property name="smooksConfig" value="/smooks-res.xml"/>
<!-- property name="reportPath" value="/zap/smooks-report.html" / -->
</action>