Actually the tarfile is not compressed, files inside the tar file are
gzipped files, for example
tar tvf archive.tar
drwxrwsr-x ktanaka/ktanaka 0 2007-10-30 12:45:26 tardir/
-rw-rw-r-- ktanaka/ktanaka 56 2007-10-30 12:44:37 tardir/content.txt.gz
I'd like to directly create a content.txt file from the above archive.tar
Thanks for the posting though, you gave me an idea to try that led to a
solution:
gz:tar:file:///extra/data/tryVfs/archive.tar!/tardir/content.txt.gz!content.txt
It was unclear to me from the Javadoc how to build up this name
parameter for
FileSystemManager.resolveFile(name). Although I see after the fact that
if I had studied
http://commons.apache.org/vfs/filesystems.html
the "Zip, Jar and Tar" section has a 5th example
"|tar:gz:http://anyhost/dir/mytar.tar.gz!/mytar.tar!/path/in/tar/README.txt|"
From this maybe I could have deduced that multiple paths can be chained
together
with a "!" as a separator, while file system designators ("file:", "tar:"
and "gz:") should be prepended onto the front in reverse order.
I'll update the example I started in the VFS wiki to reflect the much
simpler name
http://wiki.apache.org/jakarta-commons/ExtractAndDecompressGzipFiles
-Ken
Mark Fortner wrote:
You mentioned that you wanted to look into a tarball (gzipped tar
file), but
the URL you gave was only for a tar file. Something like this should work:
gz:tar:file:///extra/data/tryVfs/archive.tar.gz!/myfile.txt
Hope this helps,
Mark
On 10/31/07, Ken Tanaka < [EMAIL PROTECTED]> wrote:
Thanks for the suggestion, but I'm getting a different error when I try
that:
org.apache.commons.vfs.FileSystemException: Could not resolve file
"gz:tar:file:///extra/data/tryVfs/archive.tar!/!/".
...
Here is the exact code corresponding to the above error:
FileObject contentFile = fsManager.resolveFile(
"gz:tar:///extra/data/tryVfs/archive.tar!/tardir/content.txt.gz"
);
Philippe Poulard wrote:
Hi Ken,
Ken Tanaka a écrit :
FileObject gzTarFile =
fsManager.resolveFile("tar:gz:/archive.tar!/tardir/content.txt.gz");
try this :
fsManager.resolveFile("gz:tar:/archive.tar!/tardir/content.txt.gz");
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