[ http://issues.apache.org/jira/browse
/NUTCH-255?page=comments#action_12412777 ]
Stefan Neufeind commented on NUTCH-255:
---------------------------------------
You might want to have a / right after the .com in the
example - but that's not too important here 
You can also omit the (.*) at beginning/end of expression as
it's not needed for this task
NUTCH-279 includes your patch modified in there.
PS: Thanks for the contribution.
> Regular Expression for RegexUrlNormalizer to remove
jsessionid
>
------------------------------------------------------------
--
>
> Key: NUTCH-255
> URL: http:/
/issues.apache.org/jira/browse/NUTCH-255
> Project: Nutch
> Type: Improvement
> Components: fetcher
> Versions: 0.8-dev
> Environment: Windows XP Media Center 2005, 2 Gigs RAM,
3.0 Ghz Pentium 4 Hyperthreaded, Eclipse 3.2.0
> Reporter: Dennis Kubes
> Priority: Trivial
> Attachments: urlnormalize_jessionid.patch
>
> Some URLs are filtered out by the crawl url filter for
special characters (by default). One of these is the
jsessionid urls such as:
> http://www.somesite.com;jsession
id=A8D7D812B5EFD3099F099A760F779E3B?query=string
> We want to get rid of the jessionid and keep everything
else so that it looks like this:
> http://www.somes
ite.com?query=string
> Below is a regular expression for the
regex-normalize.xml file used by the RegexUrlNormalizer that
sucessfully removes jsessionid strings while leaving the
hostname and querystring. I have also attached a patch for
the regex-normalize.xml.template file that adds the
following expression.
> <regex>
>
<pattern>(.*)(;jsessionid=[a-zA-Z0-9])(.*)</pat
tern>
> <substitution>$1$3</substitution>
> </regex>
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