Hello everyone,
I am using the ExceptionSelector to do some custom error handling based on
the different Exceptions being thrown. It looks like the only Exceptions I
am able to do anything with are the java.lang.RuntimeException and the
org.apache.cocoon.ProcessingException. I set up a situation where a
SourceException is being thrown and here's the error message that gets sent:
Internal Server Error
Message: Failed to execute pipeline.
Description: org.apache.cocoon.ProcessingException: Failed to execute
pipeline.: java.lang.RuntimeException:
org.apache.cocoon.ProcessingException: Exception during source resolving.:
org.apache.excalibur.source.SourceException: Resource not found. There is no
resource with the requested path:
'global/www.msdclinicaltrials.com/facts/poll_default.xml' and promotion
status: uat
Sender: org.apache.cocoon.servlet.CocoonServlet
Source: Cocoon Servlet
Request URI
facts/index.html
Now, It looks like the heirarchy is as follows: ProcessingException -->
RuntimeException --> ProcessingException --> SourceException
Here's my ExceptionSelector defn:
<map:selector logger="sitemap.selector.exception"
name="exception" src="org.apache.cocoon.selection.ExceptionSelector">
<exception
class="org.apache.cocoon.ResourceNotFoundException" name="not-found"/>
<exception class="java.lang.RuntimeException"
name="run-time" unroll="true"/>
<exception class="org.apache.cocoon.ProcessingException"
name="internal-error" unroll="true"/>
<exception
class="org.apache.excalibur.source.SourceException" name="source"/>
<exception class="java.sql.SQLException" name="sql"/>
<exception class="java.lang.Throwable" unroll="true"/>
</map:selector>
And here's how I'm handling the errors:
<map:handle-errors>
<map:select type="exception">
<map:when
test="internal-error">
<map:generate
type="notifying"/>
<map:serialize
type="xml"/>
</map:when>
<map:when test="run-time">
<map:generate
type="notifying"/>
<map:serialize
type="xml"/>
</map:when>
<map:when test="not-found">
<map:generate
type="notifying"/>
<map:serialize
type="xml"/>
</map:when>
<map:when test="source"
<map:generate
type="notifying"/
<map:serialize
type="xml"/>
</map:when>
</map:select>
</map:handle-errors>
With this configuration, I get XML back from the NotifyGenerator, but it's
for the ProcessingException. For some reason it is not unrolling to reveal
the SourceException pipeline.
If I get rid of the test for run-time or internal-error, it goes right to
the default error page, that shows the stack trace.
I haven't seen much on this on the web and newsgroups. Am I missing
something?
-Paul
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