[jira] [Resolved] (COMPRESS-159) ChangeSetPerformer not reliable for ZipArchiveInputStreams

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

     [ https://issues.apache.org/jira/browse/COMPRESS-159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Bodewig resolved COMPRESS-159.
-------------------------------------

       Resolution: Fixed
    Fix Version/s: 1.5

added a new perform overload with svn revision 1427509
                
> ChangeSetPerformer not reliable for ZipArchiveInputStreams
> ----------------------------------------------------------
>
>                 Key: COMPRESS-159
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-159
>             Project: Commons Compress
>          Issue Type: Bug
>          Components: Changesets
>    Affects Versions: 1.2
>         Environment: OpenJDK Runtime Environment (IcedTea6 1.8.7) (6b18-1.8.7-4)
> OpenJDK 64-Bit Server VM (build 16.0-b13, mixed mode)
> Linux 2.6.38-1-amd64 #1 SMP Wed Mar 16 17:38:02 UTC 2011 x86_64 GNU/Linux
>            Reporter: Jon Michaelchuck
>             Fix For: 1.5
>
>
> ChangeSetPerformer's perform function takes an ArchiveInputStream as an argument and thus frequently runs into issues described under heading 'ZipArchiveInputStream vs ZipFile' at http://commons.apache.org/compress/zip.html 
> Personally for a simple local solution I've added a slightly modified performZip function taking a ZipFile argument in place of the ArchiveInputStream argument:
> diff perform performZip
> 1c1
> <     public ChangeSetResults perform(ArchiveInputStream in, ArchiveOutputStream out)
> ---
> >     public ChangeSetResults performZip(ZipFile zf, ArchiveOutputStream out)
> 17,18c17,18
> <         ArchiveEntry entry = null;
> <         while ((entry = in.getNextEntry()) != null) {
> ---
> >         ArrayList<ZipArchiveEntry> entries = Collections.list(zf.getEntriesInPhysicalOrder());
> >         for (ZipArchiveEntry entry : entries) {
> 46c46
> <                 copyStream(in, out, entry);
> ---
> >                 copyStream(zf.getInputStream(entry), out, entry);
> A permanent fix may require some re-design, the perform(ArchiveInputStream in, ArchiveOutputStream out) abstraction may be overly general.

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