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https://issues.apache.org/jira/browse/IO-129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jukka Zitting updated IO-129:
-----------------------------

    Attachment: commons-io-TeeInputStream-close.patch

Not closing the output stream is designed for constructs like new 
TeeInputStream(..., System.out). I agree that making the close behaviour 
configurable is a good feature.

Instead of the auto-close feature, I'd rather make the option to close the 
associated output stream work in the close() method of the proxy stream. See 
the attached patch commons-io-TeeInputStream-close.patch for a proposed 
implementation.

One could use the AutoCloseInputStream decorator to get auto-close 
functionality:

    new AutoCloseInputStream(new TeeInputStream(..., ..., true));

> Add TeeInputStream
> ------------------
>
>                 Key: IO-129
>                 URL: https://issues.apache.org/jira/browse/IO-129
>             Project: Commons IO
>          Issue Type: New Feature
>          Components: Streams/Writers
>            Reporter: Jukka Zitting
>            Priority: Minor
>             Fix For: 1.4
>
>         Attachments: commons-io-TeeInputStream-autoclose.patch, 
> commons-io-TeeInputStream-close.patch, IO-129.patch
>
>
> There should be a TeeInputStream class that transparently writes all bytes 
> read from an input stream to a given output stream. Such a class could be 
> used to easily record and log various inputs like incoming network streams, 
> etc. The class would also be nicely symmetric with the existing 
> TeeOutputStream class.

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