SOLVED (Re: How to set request attribute from the sitemap?)

[Mark Lundquist <ml...@wrinkledog.com>]

Well, mystery solved.

Turns out I was setting up the PropagatorAction correctly — it was just 
that the default configuration of RequestAttributeOutputModule wasn't 
doing what I expected.  With sitemap log level set to DEBUG, I could 
see that the propagator was working right.  I added some scaffolding in 
my flowscript to print out all the request attributes, and that led me 
to track down the <key-prefix> thing which has a crazy default of 
OutputModule.ROLE.  Adding an empty <key-prefix/> solved my problem.

—ml—

On Sep 24, 2005, at 9:42 AM, Mark Lundquist wrote:

>
> Hi everyone,
>
> Here's the sitch (w/ Cocoon 2.1.7, standard sitemap components)...
>
> I need to set a request attribute in one pipeline, so that a later 
> (after internal forwarding) pipeline can use it (access it using the 
> input module).
>
> I have a continuation-based "wizard" flow that needs this request 
> attribute set in each pipeline that it forwards to.  I was setting the 
> request attribute in flowscript at the beginning of the flow.  That 
> worked great for the first continuation.  The continuation handler 
> resumes the flow context, but since it's a new request I lose the old 
> request attributes.  Note, there is no way to kludge around this in 
> flow without modifying the flowscript Form object, since once we go 
> into the form validation loop, we may span several continuations 
> before getting back out again.
>
> I tried using the PropagatorAction, trying to figure out from the 
> javadoc how to set it up.  Here's what I tried:
>
>     <map:action
>         name="request-attr-propagator"
>         src="org.apache.cocoon.acting.PropagatorAction"
>         logger="sitemap.action.request-attr-propagator"
>       >
>       <output-module name="request-attr"/>
>     </map:action>
>
> and in the pipeline:
>
>         <map:act type="request-attr-propagator">
>           <map:parameter name="ui-mode" value="{1}"/>
>         </map:act>
>
> ...but it doesn't seem to be working (no errors, the request attribute 
> just isn't getting set).  Am I doing it wrong?
>
> The other confusing thing is that there is also a 
> SessionPropagatorAction... but the example configuration given in the 
> PropagatorAction javadoc is for a "session-propagator".
>
> As always, any help will be gratefully appreciated :-)
> —ml—
>
>
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