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https://issues.apache.org/jira/browse/NUTCH-1993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arkadi Kosmynin updated NUTCH-1993:
-----------------------------------
Attachment: NUTCH-1193.patch
> Nutch does not use backup parsers
> ---------------------------------
>
> Key: NUTCH-1993
> URL: https://issues.apache.org/jira/browse/NUTCH-1993
> Project: Nutch
> Issue Type: Bug
> Components: parser
> Reporter: Arkadi Kosmynin
> Attachments: NUTCH-1193.patch
>
>
> From reading the code it is clear that it is designed to allow using several
> parsers to parse a document in a sequence, until it is successfully parsed.
> In practice, this does not work because these lines
> if (parseResult != null && !parseResult.isEmpty())
> return parseResult;
> break the loop even if the parsing has failed because parseResult is not
> empty anyway, it contains a ParseData with ParseStatus.FAILED.
> A fix:
> if ( parseResult.isAnySuccess() )
> return parseResult;
> Where parseResult.isAnySuccess() returns true if any of the parsing attempts
> were successful.
> This fix is important because it allows use of backup parsers as originally
> designed and thus increase index completeness.
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