Re: Trigger Cocoon http response code from within XSL code

Daniel Schmidt wrote:
> Hi David,
> 
> > Just in case you have not seen it, and to add more connections info to the mail archives:
> > http://wiki.apache.org/cocoon/ErrorHandling
> > Some of that is old, but there is a good thread linked in the section about Cocoon 2.1 that is relevant:
> > Subject: Generators now allowed in <map:handle-errors>
> > http://marc.info/?l=xml-cocoon-dev&m=104923290631009
> 
> Thank you very much for the links provided.
> 
> I was able to make it work.

Great. And thanks for sharing your solution.
I now have my project working nicely too,
and also enhanced Apache Forrest to enable per-project
configuration of Cocoon error handling:
http://forrest.apache.org/faq.html#handle-errors

thanks
-David

> Here is the code for throwing individual exceptions from within XSLT to the cocoon sitemap:
> 
> ...
> <map:selectors>
>   <map:selector name="exception" src="org.apache.cocoon.selection.XPathExceptionSelector">
>     <exception name="FileNotFound" class="org.apache.cocoon.ResourceNotFoundException"/>
>     <exception name="Transform" class="javax.xml.transform.TransformerException" unroll="true">
>       <xpath name="ContentNotAvailableInCountry" test="message='ContentNotAvailableInCountry'"/>
>     </exception>
>     <exception class="java.lang.Throwable" unroll="true"/>
>   </map:selector>
> </map:selectors>
> ...
> <map:handle-errors>
>   <map:select type="exception">
>     <map:when test="ContentNotAvailableInCountry">
>       <!-- defined <xsl:message terminate="yes">ContentNotAvailableInCountry</xsl:message> error -->
>     </map:when>
>     <map:when test="Transform">
>       <!-- generic <xsl:message terminate="yes"/> error -->
>     </map:when>
>     <map:when test="FileNotFound">
>       <!-- file not found error -->
>     </map:when>
>     <map:otherwise>
>       <!-- something else -->
>     </map:otherwise>
>   </map:select>
> </map:handle-errors>
> ...
> 
> This works for me. The key is to have the unroll="true" in it + the order of the <exceptions/>.
> 
> I will do further testing.
> 
> Cheers,
> Daniel