[jira] [Updated] (COMPRESS-428) Adding option to auto-select final method(DEFLATED or STORED) for ZipArchiveOutputStream

["Stefan Bodewig (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COMPRESS-428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Bodewig updated COMPRESS-428:
------------------------------------
    Fix Version/s:     (was: 1.16)

> Adding option to auto-select final method(DEFLATED or STORED) for ZipArchiveOutputStream
> ----------------------------------------------------------------------------------------
>
>                 Key: COMPRESS-428
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-428
>             Project: Commons Compress
>          Issue Type: Improvement
>          Components: Compressors
>    Affects Versions: 1.13
>         Environment: commons-compress 1.13
>            Reporter: Fuwei Chin
>            Priority: Minor
>              Labels: compress, deflated, stored
>
> Before writing "deflated" data to output stream, check if the compressed size of a zip archive entry is bigger than or equal to its original size, if so then use method "stored" instead, just like what 7-Zip does when creating a  zip file.
> The optimization above can be done by 
>   1. adding a new option "DEFLATED_IF_NECESSARY" for ZipArchiveOutputStream#method.
>   2. auto-selecting final method(DEFLATED or STORED) if DEFLATED_IF_NECESSARY specified.



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