net.sf.basedb.util.zip
Class ZipUnpacker

java.lang.Object
  net.sf.basedb.util.zip.ZipUnpacker

public class ZipUnpacker
extends Object

This class can be used to unpack zip files into the BASE directory structure. The class supports unpacking multiple zip files in the same transaction.

Version:

2.0

Author:

nicklas

Last modified

$Date: 2008-09-11 22:08:14 +0200 (Thu, 11 Sep 2008) $

Field Summary

private DbControl	dc
private Map<String,Directory>	paths Cache of directories.

Constructor Summary

ZipUnpacker(DbControl dc)
Create a new zip unpacker.

Method Summary

private Directory	getDirectory(Path path) Get the directory for the specified path.
int	unpackZipFile(Directory rootDir, ZipInputStream zip, boolean overwrite, AbsoluteProgressReporter progress) Unpack a zip file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

dc

private final DbControl dc

paths

private Map<String,Directory> paths

Cache of directories.

Constructor Detail

ZipUnpacker

public ZipUnpacker(DbControl dc)

Create a new zip unpacker.

Parameters:

dc - The DbControl to use for database access

Method Detail

unpackZipFile

public int unpackZipFile(Directory rootDir,
                         ZipInputStream zip,
                         boolean overwrite,
                         AbsoluteProgressReporter progress)
                  throws IOException,
                         BaseException

Unpack a zip file.

Parameters:

rootDir - The directory where the contents of the zip file should be placed

zip - The contents of the zip file

overwrite - If existing files should be overwritten or ignored

progress - An optional progress reporter for displaying progress

Returns:

The number of files unpacked

Throws:

IOException - If there is an error when unpacking the zip file

BaseException - If there is a BASE error

getDirectory

private Directory getDirectory(Path path)

Get the directory for the specified path. We first check the internal cache. If not found we try to load it from the database. If still not found we create a new directory and save it to the database.

Parameters:

path - The path

Returns:

The directory