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From "Torsten Curdt (JIRA)" <>
Subject [jira] Commented: (COMPRESS-54) Add 7zip or RAR archive support
Date Thu, 26 Mar 2009 13:06:54 GMT


Torsten Curdt commented on COMPRESS-54:

I've only gathered libraries for implementing this.

For RAR I found sources for
o rarlib (GPL)
o unrar (sort of free but cpp)

For 7zip I found
o p7zip (LGPL + restriction, written in C)
o j7zip (LGPL)

And there are other algorithms (and libraries) to implement as well: ARJ, CAB, ...

But I fear some of those implementations need to be hosted somewhere else (due to the licensing).
I'd suggest to create a github project for it.

> Add 7zip or RAR archive support
> -------------------------------
>                 Key: COMPRESS-54
>                 URL:
>             Project: Commons Compress
>          Issue Type: New Feature
>         Environment: N/A
>            Reporter: Tim Pinet
>            Priority: Minor
>   Original Estimate: 30h
>  Remaining Estimate: 30h
> Has anyone looked into adding support for 7zip and RAR file types? Using the j7zip and
junrar libraries I was able to get a rough protoype working with commons-compress but only
with extract support for RAR (due to licencing issues). Also, my prototype performance is
poor so I definately need to improve it.

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