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https://issues.apache.org/jira/browse/NUTCH-444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12472907
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Nick Lothian commented on NUTCH-444:
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I'm a developer on the ROME project and I done some patches to FeedParser. I've
also been a long-time lurker on the Nutch lists.
To clear up a couple of misconceptions:
The current version of FeedParser is Kevin Burton's one available from
http://tailrank.com/code.php. It does have Atom 1.0 support.
ROME only has a single dependency: JDom.
Both FeedParser & ROME load the feed into a DOM before working on it.
FeedParser exposes a SAX-like API, while ROME exposes objects. My tests (a
while ago now, but probably still reasonable) showed little performance
difference between the two libraries (See
http://www.mackmo.com/syndbench/feedparserresults.html and
http://www.mackmo.com/syndbench/romeresults.html).
I don't understand nutch.newbie's comments about different Atom & RSS mappings.
I'm not aware of any issues with the mapping of Author. There are some docs on
mappings at http://rollerweblogger.org/roller/entry/rome_0_9_beta_is,
http://wiki.java.net/bin/view/Javawsxml/Rome05DateMapping and
http://wiki.java.net/bin/view/Javawsxml/Rome05URIMapping.
I'd HIGHLY recommend not writing your own custom feed parser. It's a much
bigger job than you'd expect. In particular the difficulties of dealing with
the bizzare things seen in real-world feeds should not be underestimated.
Apache Abdera (http://incubator.apache.org/abdera/) is another option if
anyone is just interested in Atom parsing.
> Possibly use a different library to parse RSS feed for improved performance
> and compatibility
> ---------------------------------------------------------------------------------------------
>
> Key: NUTCH-444
> URL: https://issues.apache.org/jira/browse/NUTCH-444
> Project: Nutch
> Issue Type: Improvement
> Components: fetcher
> Affects Versions: 0.9.0
> Reporter: Renaud Richardet
> Assigned To: Chris A. Mattmann
> Priority: Minor
> Fix For: 0.9.0
>
> Attachments: parse-feed-v2.tar.bz2, parse-feed.tar.bz2
>
>
> As discussed by Nutch Newbie, Gal, and Chris on NUTCH-443, the current
> library (feedparser) has the following issues:
> - OutOfMemory when parsing > 100k feeds, since it has to convert the feed to
> jdom first
> - no support for Atom 1.0
> - there has been no development in the last year
> Alternatives are:
> - Rome
> - Informa
> - custom implementation based on Stax
> - ??
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