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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (NUTCH-443) allow parsers to return multiple Parse object, this will speed up the rss parser
Date Tue, 13 Feb 2007 18:40:06 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12472821
] 

Doug Cutting commented on NUTCH-443:
------------------------------------

> this patch in some places removes the log guards

Most of the log guards are misguided.  Log guards should only be used on DEBUG level messages
in performance-critical inner loops.  Since INFO is the expected log level, a guard on INFO
& WARN level messages does not improve performance, since these will be shown.  And most
DEBUG-level messages are not in performance critical code and hence do not need guards.  The
guards only make the code bigger and thus harder to read and maintain.

> allow parsers to return multiple Parse object, this will speed up the rss parser
> --------------------------------------------------------------------------------
>
>                 Key: NUTCH-443
>                 URL: https://issues.apache.org/jira/browse/NUTCH-443
>             Project: Nutch
>          Issue Type: New Feature
>          Components: fetcher
>    Affects Versions: 0.9.0
>            Reporter: Renaud Richardet
>         Assigned To: Chris A. Mattmann
>            Priority: Minor
>             Fix For: 0.9.0
>
>         Attachments: NUTCH-443-draft-v1.patch, NUTCH-443-draft-v2.patch, NUTCH-443-draft-v3.patch,
NUTCH-443-draft-v4.patch, NUTCH-443-draft-v5.patch, NUTCH-443-draft-v6.patch, parse-map-core-draft-v1.patch,
parse-map-core-untested.patch, parsers.diff
>
>
> allow Parser#parse to return a Map<String,Parse>. This way, the RSS parser can
return multiple parse objects, that will all be indexed separately. Advantage: no need to
fetch all feed-items separately.
> see the discussion at http://www.nabble.com/RSS-fecter-and-index-individul-how-can-i-realize-this-function-tf3146271.html

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