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Posted to dev@jackrabbit.apache.org by "Felix Meschberger (JIRA)" <ji...@apache.org> on 2007/12/07 16:49:43 UTC
[jira] Updated: (JCR-1261) Replace Xerces/JAXP based
(un)marshalling by XPP3 based implementation
[ https://issues.apache.org/jira/browse/JCR-1261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Felix Meschberger updated JCR-1261:
-----------------------------------
Attachment: JCR-1261.patch
Patch implementing the required changes:
* Add three new classes implementing a serializer, and DocumentBuilder[Factory] based on MXP1
* Add MXP1 (xpp3) dependency
* Remove Xerces dependency
Note: The DocumentBuilder[Factory] stuff is only included to not have to change the complete library.
> Replace Xerces/JAXP based (un)marshalling by XPP3 based implementation
> ----------------------------------------------------------------------
>
> Key: JCR-1261
> URL: https://issues.apache.org/jira/browse/JCR-1261
> Project: Jackrabbit
> Issue Type: Improvement
> Components: jackrabbit-webdav
> Affects Versions: 1.3.3
> Reporter: Felix Meschberger
> Attachments: JCR-1261.patch
>
>
> Proposing to replace the current Xerces/JAXP based implementation of XML data unmarshalling and marshalling to be replaced by a MXP ([1]) based implementation. MXP is an implementation of the XML PullParser API [2] and provides a very mall footprint (120KB) and far better performance than Xerces (my tests showed around 50% performance increase over Xerces for both unmarshalling and marshalling, see also [3]).
> Why do I care ? I would like to include WebDAV functionality into Sling and bundle is with as little dependencies as possible ( the xpp3 lib might even be bundled into this project to minimize dependencies). In addition, I think XML (un)marshalling performance is crucial in any WebDAV solution. For this reason, this project can only win if we add a more performing library.
> [1] http://www.extreme.indiana.edu/xgws/xsoap/xpp/mxp1/
> [2] http://www.xmlpull.org
> [3] http://www.extreme.indiana.edu/~aslom/xpp_sax2bench/results.html
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