handle-errors and the SitemapSource

[Steve Krulewitz <sh...@mm.st>]

Hey all --

I am working on a project that does a lot of aggregation using the 
CIncludeTransformer and the SitemapSource (cocoon://).  When one of 
these aggregated sources throws an exception, I would like to return 
different xml rather than having the exception bubble up to the root 
sitemap's handle-errors.  However, a pipeline's handle-errors does not 
get called when the pipeline is invoked using the SitemapSource.  This 
has come up before and there was a proposed solution [1] but I can't 
tell if anything has come of it.

Has anyone made any progress on this?

cheers,
-steve

[1] http://marc.theaimsgroup.com/?m=107876029119774

Re: handle-errors and the SitemapSource - workaround

[Steve Krulewitz <sh...@mm.st>]

Looking at the source, I can't see any obvious way for the SitemapSource 
to get access to the pipeline's error handler.  So taking the cowards 
way out, I created a new SitemapSource called 
ErrorHandlingSitemapSource.  I added some code to use the SourceUtil to 
call another pipeline (provided as a parameter) if the original pipeline 
source fails.

Does this sound ok?  I am concerned about what would happen if the 
original pipeline threw an exception after producing some sax events -- 
this might lead to some strange combination of the original pipeline and 
the alternate pipeline.  Or does the pipeline only start producing 
events after the pipeline is processed?

cheers,
-steve


Steve Krulewitz wrote:
> Hey all --
> 
> I am working on a project that does a lot of aggregation using the 
> CIncludeTransformer and the SitemapSource (cocoon://).  When one of 
> these aggregated sources throws an exception, I would like to return 
> different xml rather than having the exception bubble up to the root 
> sitemap's handle-errors.  However, a pipeline's handle-errors does not 
> get called when the pipeline is invoked using the SitemapSource.  This 
> has come up before and there was a proposed solution [1] but I can't 
> tell if anything has come of it.
> 
> Has anyone made any progress on this?
> 
> cheers,
> -steve
> 
> [1] http://marc.theaimsgroup.com/?m=107876029119774