[jira] [Commented] (NUTCH-1321) IDNNormalizer

["Sebastian Nagel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-1321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13951585#comment-13951585 ] 

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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