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Posted to issues@commons.apache.org by "Simone Tripodi (JIRA)" <ji...@apache.org> on 2012/09/10 21:00:08 UTC
[jira] [Commented] (DIGESTER-171) Add DefaultThrowingErrorHandler
to Digester API.
[ https://issues.apache.org/jira/browse/DIGESTER-171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13452317#comment-13452317 ]
Simone Tripodi commented on DIGESTER-171:
-----------------------------------------
Nice thought, Nick!
patches (with testcases ;)) are more welcome, if you could provide one I would be more than happy to review and check it in.
Many thanks in advance!
-Simo
> Add DefaultThrowingErrorHandler to Digester API.
> ------------------------------------------------
>
> Key: DIGESTER-171
> URL: https://issues.apache.org/jira/browse/DIGESTER-171
> Project: Commons Digester
> Issue Type: Improvement
> Affects Versions: 3.2
> Reporter: Nick Williams
> Priority: Minor
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> The current default error handling behavior is for the SAX parses to NOT throw exceptions when they occur, but instead to log them to stderr. This is fine and I am not suggesting that be changed. However, there is a wiki article (http://wiki.apache.org/commons/Digester/FAQ) that describes the common task of implementing an error handler that throws encountered errors.
> If this is so common, it would seem that including such an error handler in the API would be a very convenient thing to do.
> I propose that the following class be added to the digester to make it convenient for anyone to turn on this behavior:
> {code}package org.apache.commons.digester3;
> import org.xml.sax.ErrorHandler;
> import org.xml.sax.SAXException;
> import org.xml.sax.SAXParseException;
> public class DefaultThrowingErrorHandler implements ErrorHandler
> {
> @Override
> public void warning(SAXParseException e) throws SAXException
> {
> throw e;
> }
> @Override
> public void error(SAXParseException e) throws SAXException
> {
> throw e;
> }
> @Override
> public void fatalError(SAXParseException e) throws SAXException
> {
> throw e;
> }
> }{code}
> Furthermore, I propose that the DigesterLoader and Digester classes have setThrowEncounteredSAXErrors(boolean) methods that set the error handler to the DefaultThrowingErrorHandler..
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