Creation of Archive file with .tar format

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1

Hi to all
Is there anybody that knows how to generate an archive file with .tar format ?
I have tried using a java service based upon com.ice.tar package, and then common-compress package, but I don’t succeed to produce my archive file…
If someone would have to realized this task before…I’d be glad to have some piece of information on that.

Thanks for your help !

Xavier

2

Apache Ant has some classes that allow you to create TAR files. You could download Ant and extract the classes you need into a separate JAR file. The classes are under the package org.apache.tools.tar ([url]http://www.jajakarta.org/ant/ant-1.6.1/docs/en/manual/api/org/apache/tools/tar/package-summary.html[/url])

Alternatively, if you’re not absolutely tied down to TAR, you could create JAR or ZIP files instead (via java.util.jar or java.util.zip), which in many cases, serves the exact same purpose.

Percio

3

You could use the apache commons compress library for creating tar files, there are very good examples of how to do it on the internet.

I got to admit though, this com.ice.tar has some really nice methods(like setKeepOldFiles,setTarProgressDisplay,setVerboseLogging etc) in it which are missing in the apache commons. Having said that, if i were you, i would stick to Apache commons libraries.

Go to [URL]http://commons.apache.org/compress/examples.html[/URL] for how to implement creating a tar file under the tar section.

Adding an entry to a tar archive:

[COLOR=#000000][FONT=Verdana]
[COLOR=#660066]TarArchiveEntry[/color] entry [COLOR=#666600]=[/color] [COLOR=#000088]new[/color] [COLOR=#660066]TarArchiveEntry[/color][COLOR=#666600]([/color]name[COLOR=#666600]);[/color]
entry[COLOR=#666600].[/color]setSize[COLOR=#666600]([/color]size[COLOR=#666600]);[/color]
tarOutput[COLOR=#666600].[/color]putArchiveEntry[COLOR=#666600]([/color]entry[COLOR=#666600]);[/color]
tarOutput[COLOR=#666600].[/color]write[COLOR=#666600]([/color]contentOfEntry[COLOR=#666600]);[/color]
tarOutput[COLOR=#666600].[/color]closeArchiveEntry[COLOR=#666600]();[/color]
[/font][/COLOR]

Reading entries from an tar archive:

[COLOR=#000000][FONT=Verdana]
[COLOR=#660066]TarArchiveEntry[/color] entry [COLOR=#666600]=[/color] tarInput[COLOR=#666600].[/color]getNextTarEntry[COLOR=#666600]();[/color]
[COLOR=#000088]byte[/color][COLOR=#666600][][/color] content [COLOR=#666600]=[/color] [COLOR=#000088]new[/color] [COLOR=#000088]byte[/color][COLOR=#666600][[/color]entry[COLOR=#666600].[/color]getSize[COLOR=#666600]()];[/color]
LOOP UNTIL entry[COLOR=#666600].[/color]getSize[COLOR=#666600]()[/color] HAS BEEN READ [COLOR=#666600]{[/color]
    tarInput[COLOR=#666600].[/color]read[COLOR=#666600]([/color]content[COLOR=#666600],[/color] offset[COLOR=#666600],[/color] content[COLOR=#666600].[/color]length [COLOR=#666600]-[/color] offset[COLOR=#666600]);[/color]
[COLOR=#666600]}[/color][/font][/COLOR]

Cheers,
Akshith