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https://issues.apache.org/jira/browse/JAMES-3705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17478513#comment-17478513
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Benoit Tellier commented on JAMES-3705:
---------------------------------------

Why not allowing some/all of the statistics you mention, which sounds generic 
enough, to make it in James codebase if applicable (eg use of MetricsFactory) 
rather than keeping a lonely protected method? 

> Extensible POP3 handlers
> ------------------------
>
>                 Key: JAMES-3705
>                 URL: https://issues.apache.org/jira/browse/JAMES-3705
>             Project: James Server
>          Issue Type: Improvement
>          Components: POP3Server
>    Affects Versions: master
>            Reporter: Karsten Otto
>            Priority: Minor
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> I propose a minor refactoring of the POP3 {{{}RetrCmdHandler{}}}, retrieving 
> the message content in a separate protected method:
>  
> {code:java}
> protected InputStream getMessageContent(POP3Session session, MessageMetaData 
> data){code}
> With this developers can more easily create custom variants of this command, 
> to  access the session and message metadata, wrap the message stream to e.g. 
> gather transfer statistics and monitor ultimate success/failure.
> Since the {{TopCmdHandler}} extends {{{}RetrCmdHandler{}}}, it can trivially 
> use this method as well for the same benefit.
>  



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