Unzipping Directories

Hi
I am trying to unzip a directory. The zipped directory is uploaded by the user and I have to unzip it.
When I try to use java.util.zip it works fine for zipped files but not for diretcories.
So heres what i want to do:
I have a zipped folder app uder which are two files.
From the entire path (for e.g. C:\app\example1.doc, C:\app\example2.doc)
I would to retrieve the name app so i can create a new directory & then store the unzipped files.
But when i print m.group(1) it gives me the entire path. Any suggestions
<CODE>
try {
zipFile = new ZipFile(args[0]);
System.out.println(zipFile.getName());
Pattern p = Pattern.compile("(.*)\\.*.zip");
Matcher m = p.matcher(zipFile.getName());
if(m.find()){
System.out.println("the group is "+ m.group(1));
</CODE>
[NOTE]
PLEASE DO NOT REPLY BACK TELLING TO READ THE UNZIP file documentation. I am using that for unzipping files but when a directory (folder) is zipped the code breaks. below is the code that i am using. http://gethelp.devx.com/techtips/java_pro/10MinuteSolutions/10min0300.asp
The code breaks coz it doesnt create the initial directory. I mean if a folder called "Sample" is zipped where the path is "C:\Sample\doc1.doc ; C:\Sample\Doc2.doc" it fails to create Sample (folder/directory) at the server side and hence doc1.doc & doc2.doc are not copied. Instead with the above code link, if doc1.doc is zipped it can unzip it easily.
[NOTE]
Any help is appreciated
Thanx

Presuming that zipFile.getName() returns "app/example1.doc", then you can use File objects...
File file = new File(zipFile.getName());
File dir = file.getParentFile();
if(!dir.mkdirs()) {
throw new Exception("Failed to create directories for " + file.getAbsolutePath());
...

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Any help is apprciated
Thanx

Sorry I got it this time. I had overlooked the new File. I added that & it works fine but there seems to be some problem
If the folder has another folder inside . it doesnt show that one. or rather just unzips one folder & no folders inside it. But i guess i can check for that
Thanx for u r help
Have a nice day

UnZipping an archive with folders inside

Hello, everyone.
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}Here's the ZIP archive I'm trying to download: http://www.2shared.com/file/Qu1cSWcl/cache.html
If what I've said before doesn't make sense (mind you me, it's 4 am and I'm about to crawl into bed), then I'll try to sum it up in a few short words below.
I'm trying to extract a ZIP archive with folders, every time I do, it stops halfway through and throws an error similar to this:
invalid cache index specified
..\animations\raw
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h specified)
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        at Updater.get(Updater.java:64)
        at Client.main(Client.java:2548)
Press any key to continue . . .I'm just trying to be able to extract cache (ZIP ARCHIVE) which has folders inside. I've tried creating a directory for the folder, but it seems to not work, hence the "?" in the above error (i printed that if the directory failed to create a new directory, as seen in my above code). Once again, sorry if this isn't as understandable as it should be, I'm not myself without sleep :)
Also, do ignore the first print, 'invalid cache index specified', it's not related to the problem.
Edited by: aeternaly on Jul 2, 2010 4:04 AM

So your question is really about how to make a directory, then. Nothing at all to do with unzipping of archives.
If you can't create a directory, then perhaps there is some permissions problem. You don't have the authority to create directories in some directory. Or perhaps you're trying to use a name which isn't a valid directory name in your system. Or... there are many other possibilities. But anyway I recommend tossing all of that unzipping business out of your program and just trying to write something which creates a directory. Debug that first.

Unzip/ Untar files

I am remotely logged into a UNIX cluster at the university and attempting to manipulate some files that I have received from a collaborator. He has "tarred" and "zipped" the files. Unzipping the file with the command
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(remote host is the machine I am logged into (via ssh -X username): directory is my directory on the remote host)
This creates the unzipped file- file.tar on <remote host:directory>. The problem arises when I attempt to untar the file. I am using the command
tar -xvfp file.tar
After entering this command, I get the message
tar: can't mkdir /net: Permission denied
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The same error is produced using [tar -xvf] as the bundled-options. I am assuming that it is attempting to make the directory on my collaborators remote host because the listed location of the failed mkdir is the senders directory <:senders directory> on a different UNIX cluster.
I have tried variations on the tar command (-x or -xv) but those produce the error
tar: tape read error: no tape in drive
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Sincerely,
Aric

Hi Aric,
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Gary
~~~~
   OK, so you're a Ph.D. Just don't touch anything.

I have problem in this unzip java codes

hi all,I have problem in this unzip java codes,I think either the pathway that i put C:.......is wrong or the codes are wrong because when i run it, the zipped folder is not unzipped. So anyone has another set of example or know how to correct it? Thanks!Please post the solution here!
This is the set of codes that i have:
import java.io.*;
import java.util.*;
import java.util.zip.*;
public class Unzip {
public static final void copyInputStream(InputStream in, OutputStream out)
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byte[] buffer = new byte[1024];
int len;
while((len = in.read(buffer)) >= 0)
out.write(buffer, 0, len);
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if(entry.isDirectory()) {
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System.err.println("Extracting directory: " + entry.getName());
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(new File(entry.getName())).mkdir();
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copyInputStream(zipFile.getInputStream(entry),
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zipFile.close();
} catch (IOException ioe) {
System.err.println("Unhandled exception:");
ioe.printStackTrace();
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What does the program output when it's executed? Can you copy the screen and post it here? More info can help solve the problem.
What exactly is the program supposed to do?
Add some more println() to show the program flow and what the values of key variables are. For example what is in entries after the entries() method is executed?
Some prep work on your part would make it easier for us to help.

Unzip Xtra for Mac

Hi All,
I am developing a hybrid application which receives updates
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Thanks in advance.
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Andrew Morton wrote:
>> Can anyone please tell me if there is a MAC OSX xtra
that can unzip
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>
> You could try baRunProgram (from the buddyAPI xtra) to
run gzip to
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Go with Luke's idea - baRunProgram on a Mac doesn't take
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Thanks .. the problem is solved... i was not closing the Zip file .. rather i was trying to close all the other streams that i used for IO operaion ... thanks a lot

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Observe writing to the directories fail.
Change the permissions on these new directories.
Repeat, selecting N for overwrite None.
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Unzip multiple bzip files thru powershell

Hello there-
I have 50 directories. Each directory has 10 sub directories in which there are 300 bz2 files. I would like to unzip them thru bzip program. Is it possible to do so with powershell/batch/cmd line script?
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Ben

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http://www.techiebirdsnest.com/2009/01/powershell-script-to-unzip-many-files.html
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Yan Li
Yan Li
TechNet Community Support

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