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http://issues.apache.org/jira/browse/NUTCH-309?page=comments#action_12418404 ] 

Jerome Charron commented on NUTCH-309:
--------------------------------------

Dawid, you know, sed, awk and regex are my friends, so it was not so painful    
;-)
As I mentionned in a previous mail, it was just a crude pass on logging : A 
finest one is planned to review log levels and code guards.
AspectJ => +1 for using it for logging, but I don't what are the preformance 
impacts...

> Uses commons logging Code Guards
> --------------------------------
>
>          Key: NUTCH-309
>          URL: http://issues.apache.org/jira/browse/NUTCH-309
>      Project: Nutch
>         Type: Improvement

>     Versions: 0.8-dev
>     Reporter: Jerome Charron
>     Assignee: Jerome Charron
>     Priority: Minor
>      Fix For: 0.8-dev

>
> "Code guards are typically used to guard code that only needs to execute in 
> support of logging, that otherwise introduces undesirable runtime overhead in 
> the general case (logging disabled). Examples are multiple parameters, or 
> expressions (e.g. string + " more") for parameters. Use the guard methods of 
> the form log.is<Priority>() to verify that logging should be performed, 
> before incurring the overhead of the logging method call. Yes, the logging 
> methods will perform the same check, but only after resolving parameters."
> (description extracted from 
> http://jakarta.apache.org/commons/logging/guide.html#Code_Guards)

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