Hi Marco,
I tried putting try / catch blocks round all of the code in the methods I have overridden but no exceptions were caught.
Do you suggest any other ways to debug a transformer?
If your Transformer extends AbstractLoggable (cocoon 2.0.4) or AbstractLogEnabled (2.1-dev) as the AbstractTransformers in the transformation package do, you can use the statement:
getLogger().debug("here is a debugging message");
in your transformer and the message will appear in the logs. ie you should extend AbstractSAXTransformer, AbstractDOMTransformer or AbstractTransformer. You can define what log the messages go in using the logger attribute in the <map:transformer> element in the sitemap. Something like logger="sitemap.transformer.betwixt" will put it into the sitemap.log. Then you can 'grep sitemap.transformer.betwixt sitemap.log' and see all your debugging messages.
Charles
Keith.
-----Original Message----- *From:* Marco Rolappe [mailto:[EMAIL PROTECTED] *Sent:* 12 March 2003 14:43 *To:* [EMAIL PROTECTED] *Subject:* AW: Problem writing a BetwixtTransformer
hi keith,
I didn't analyze the code and can't tell you directly where the
bug is but...
I also got a similar exception which seemed to be an XSLT/xalan
exception but actually was an exception thrown from within a
custom transformer. somehow the stack trace seems to have been lost.
you might want to debug your trasformer to find the actual bug.
-----Ursprüngliche Nachricht----- *Von:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Auftrag von *Lyall, Keith *Gesendet:* Mittwoch, 12. März 2003 14:16 *An:* '[EMAIL PROTECTED]' *Betreff:* Problem writing a BetwixtTransformer
Hi,
I am trying to write a BetwixtTransformer based on CastorTransformer but have run into a problem.
Everything appears to be working Ok according to my logging messages until the XML is serialized when I get this error:
java.lang.RuntimeException: java.lang.NullPointerException at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3231)
at java.lang.Thread.run(Thread.java:536)
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