Here's the configuration in the sitemap:

<map:match pattern="*.post">

   <!-- generate XML from the form data -->
   <map:generate type="serverpages" src="form-result.xsp"/>

   <!-- Process the form into a app-specific format -->
   <map:transform src="{1}.post2xml.xsl"/>

   <!-- Handle any web service specifics -->
   <map:transform src="{1}.pre-service.xsl"/>

   <!-- Talk to the web service.  This is a custom CDE component that was
        built to allow Cocoon to serialize the content in the pipeline to
        a web service connection and the parse the response. -->
   <map:transform type="webservice">
       <map:parameter name="url" value="http://localhost:8080/webservice/event.service"/>
   </map:transform>

   <!-- Here we have the response from the web service in the pipeline. -->

   <!-- Decode the response -->
   <map:transform src="{1}.post-service.xsl"/>

   <!-- Format the result for the browser -->
   <map:transform src="{1}.final.xsl"/>

   <!-- Serialize to the waiting browser connection.-->
   <map:serialize type="xhtml"/>

</map:match>