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From "Andrzej Jan Taramina" <>
Subject Re: Tranformation of a session´s parameter
Date Tue, 07 Oct 2003 19:13:42 GMT

>   I have installed Cocoon 2.2.1 and tomcat 4.1.27 running under jdk1.4.
> I´ve got a question about what should i do to transform a XML parameter
> that I´ve obtained from an action and that I´m trying to tranform.
>   <map:match pattern="acceso">
>    <map:act type="session" /> 
>    <map:act type="login">
>       <map:generate type="session-attr" src="XMLActionResult"/>
>    </map:act>
>   <map:transform src="sesion/doLogin.xsl">
>       <map:parameter name="contextPath" value="{request:contextPath}" /> 
>   </map:transform>
>   <map:serialize type="html"/> 
>   </map:match>
> I´m obtaining the next error message:
>  org.apache.cocoon.ProcessingException: Failed to execute pipeline.:
> java.lang.RuntimeException

I'll be that is a result of the bug I just posted to the list, regarding how 
SessionAttributeGenerator adds duplicate startDocument/endDocument SAX events 
to the pipeline if the object that is processes is a full DOM Document.  See 
my message about same....

> The session-attr generator is the SessionAttributeGenerator. I suppose the
> problem is that the generator produces DOM and the transformer needs SAX...

Nope....pipeline processing is smart enough to take a DOM and stream it out 
as SAX events.  More likely the problem is the one I encountered.  Check the 
code fix I posted and try rebuilding Cocoon with the fix in place and see if 
that resolves your problem.

Andrzej Jan Taramina
Chaeron Corporation: Enterprise System Solutions

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