Zipping dir and avoiding absolute path

[iksrazal]

Hi all,

I want to zip this directory:

mydir

The abolute path is:

/home/iksrazal/somepath/mydir

When I unzip the file I created, I get:

/home/iksrazal/somepath/mydir

But I just want:

mydir

Here's my code, please help. It runs in a servlet container like
tomcat. Note - the code doesn't use 'shouldDeleteDir' yet. And it uses
recursion. The code is based off of http://www.devx.com/tips/Tip/14049
..

/** Convert directories and files to zip format. */
public class Zipper {

/** commons logging declaration. **/
private static Log logger = LogFactory.getLog(
Zipper.class);

/** Exceptions via a Inner Class. **/
static class SWAZipException extends Exception {
/** Java 5.0 comparison utilty - without it gives warnings. */
static final long serialVersionUID = -1L;

/** Customized exception.
* @param msg - Stacktrace
* @param cause - Troublemaker
*/
public SWAZipException(String msg, Throwable cause) {
super(msg, cause);
}
}

/** Convert directory to a zip file, removing dir if desired.
* @param dir2zip The directory to zip
* @param shouldDeleteDir delete if true, otherwise do nothing
*/
public static void zipDir(String dir2zip, boolean shouldDeleteDir)
{

try {
logger.warn("Zipping dir : "
+ dir2zip);
ZipOutputStream zos = new ZipOutputStream(
new FileOutputStream(dir2zip + ".zip"));
zipDir(dir2zip, shouldDeleteDir, zos);
zos.close();
} catch (Exception ex) {
logger.error(ex.getMessage(), ex);
}

}

/** Convert directory to a zip file, removing dir if desired.
* Pass a ZipOutputStream so we can recursively zip
* sub-directories
* @param dir2zip The directory to zip
* @param shouldDeleteDir delete if true, otherwise do nothing
* @param zos Pass in a reference so recursion can be performed
* @throws SWAZipException pass all errors up to caller
*/
private static void zipDir(String dir2zip, boolean shouldDeleteDir,
ZipOutputStream zos) throws SWAZipException {

try {
// zip filename == dir name + .zip
File zipDir = new File(dir2zip);
//get a listing of the directory content
String[] dirList = zipDir.list();
byte[] readBuffer = new byte[2156];
int bytesIn = 0;
// loop through dirList, and zip the files
for (int i = 0; i < dirList.length; i++) {
File f = new File(zipDir, dirList);
if (f.isDirectory()) {
//if the File object is a directory, call this
//function again to add its content recursively
String filePath = f.getPath();
zipDir(filePath, shouldDeleteDir, zos);
//loop again
continue;
}
// if we reached here, the File object f was not
// a directory
// create a FileInputStream on top of f
FileInputStream fis = new FileInputStream(f);
// create a new zip entry
ZipEntry anEntry = new ZipEntry(f.getPath());
//place the zip entry in the ZipOutputStream object
zos.putNextEntry(anEntry);
//now write the content of the file to the
ZipOutputStream
while ((bytesIn = fis.read(readBuffer)) != -1) {
zos.write(readBuffer, 0, bytesIn);
}
//close the Stream
fis.close();
}
} catch (Exception ex) {
throw new SWAZipException(ex.getMessage(), ex);
}
}
}

 

[Andrey Kuznetsov]

You need something like this:

String pathToDir = "/home/iksrazal/somepath";

<snip>

ZipEntry anEntry = new ZipEntry(f.getPath().substring(pathToDir.length()));