[jira] Commented: (IO-211) Pre- and post-processing support for proxied streams

["Jukka Zitting (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IO-211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12856981#action_12856981 ] 

Jukka Zitting commented on IO-211:
----------------------------------

As Niall noted in IO-242, there's a corner case where the added code can throw a NullPointerException. I fixed this in revision 934041.

> Pre- and post-processing support for proxied streams
> ----------------------------------------------------
>
>                 Key: IO-211
>                 URL: https://issues.apache.org/jira/browse/IO-211
>             Project: Commons IO
>          Issue Type: New Feature
>          Components: Streams/Writers
>            Reporter: Jukka Zitting
>            Assignee: Jukka Zitting
>            Priority: Minor
>             Fix For: 2.0
>
>         Attachments: IO-211.patch
>
>
> In many cases a stream decorator needs to add custom pre- or post-processing functionality to all the read and write methods in decorated input and output streams. For example the CountingInputStream needs to override all three read() methods with similar code.
> It would be nice if the proxy stream classes provided simple hooks for adding such functionality.

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