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https://issues.apache.org/jira/browse/NUTCH-1321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13951585#comment-13951585
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Sebastian Nagel commented on NUTCH-1321:
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In BasicURLNormalizer URLs are already split into parts (protocol, host, etc.):
we could call directly {{IDN.toASCII(host)}} which would be more efficient than
using {{URLUtil.toASCII(url)}} and doing split and concatenation twice.
Maybe we should move the decoding of the punycoded URLs from IndexUtil to
index-basic / BasicIndexingFilter: field "url" is filled here. In case of
redirects it's filled with reprUrl which should be decoded as well.
Regarding a port to 1.x: trunk does currently not differentiate between 'id'
and 'url'. IDN-decoding the URL in NutchDocument may cause that documents are
not properly deleted, cf. NUTCH-1708 for a similar problem and discussions.
> IDNNormalizer
> -------------
>
> Key: NUTCH-1321
> URL: https://issues.apache.org/jira/browse/NUTCH-1321
> Project: Nutch
> Issue Type: New Feature
> Reporter: Markus Jelsma
> Assignee: Markus Jelsma
> Fix For: 1.9
>
> Attachments: idnNormalizer.patch
>
>
> Right now, IDN's are indexed as ASCII. An IDNNormalizer is to be used with an
> indexer so it will encode ASCII URL's to their proper unicode equivalant.
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