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Posted to dev@tika.apache.org by "Niall Pemberton (JIRA)" <ji...@apache.org> on 2007/11/27 04:40:43 UTC
[jira] Updated: (TIKA-106) Remove dependency on Jakarta ORO - use
JDK 1.4 Regex
[ https://issues.apache.org/jira/browse/TIKA-106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Niall Pemberton updated TIKA-106:
---------------------------------
Attachment: TIKA-106-remove-ORO-dependency-v1.patch
Attaching a patch to remove Jakarta ORO dependency. Also changes the RegexUtils method from extract() --> extractLinks() which uses a pre-compiled regular expression Pattern (thread safe according to the Javadocs). I've added a test case - which is basically copied from Nutch's OutlinkExtractor test case[1]. Also this needs the "utils" directory adding to test source before the patch can be applied.
[1] http://svn.apache.org/repos/asf/lucene/nutch/trunk/src/test/org/apache/nutch/parse/TestOutlinkExtractor.java
> Remove dependency on Jakarta ORO - use JDK 1.4 Regex
> ----------------------------------------------------
>
> Key: TIKA-106
> URL: https://issues.apache.org/jira/browse/TIKA-106
> Project: Tika
> Issue Type: Task
> Components: general
> Reporter: Niall Pemberton
> Priority: Minor
> Attachments: TIKA-106-remove-ORO-dependency-v1.patch
>
>
> Jakarta ORO is only used in one place in Tika - the RegexUtils's extract() method (which is only called in one place in ParserPostProcessor). JDK 1.4 introduced built in regular expression support and changing the RegexUtils to use this would remove the need for Jakarta ORO as a dependency.
> From the comments in RegexUtils it apears that this code was copied from Nutch's OutlinkExtractor[1] - there seems to have been a similar move in Nutch back in March in r516754[2] - however it was reverted the next day in r517015[3] - I couldn't really see anything on the Nutch dev list to explain this, except possibly this post http://tinyurl.com/2s2y9r
> [1] http://svn.apache.org/repos/asf/lucene/nutch/trunk/src/java/org/apache/nutch/parse/OutlinkExtractor.java
> [2] http://svn.apache.org/viewvc?view=rev&revision=516754
> [3] http://svn.apache.org/viewvc?view=rev&revision=517015
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