ch.elca.dependency.util
Class UnZip

java.lang.Object
  |
  +--ch.elca.dependency.util.UnZip

public class UnZip

extends java.lang.Object

This helper class is used to extract jar archives into the specified directory. It creates the same relative directory structure in the specified output directory as it is in the jar archive.

Version:

1.0-beta

Author:

Christoph Trutmann

Field Summary

protected int

DATA_BLOCK_SIZE Data block size.

Constructor Summary

UnZip()

Method Summary

protected void	buildDirectory(java.lang.String entryName) Creates the directory structure
void	extractFiles(java.io.File zipFile, java.io.File output) Extracts the files contained in the zipped file.

Methods inherited from class java.lang.Object

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

Field Detail

DATA_BLOCK_SIZE

protected final int DATA_BLOCK_SIZE

Data block size.

See Also:

Constant Field Values

Constructor Detail

UnZip

public UnZip()

Method Detail

extractFiles

public void extractFiles(java.io.File zipFile,
                         java.io.File output)

Extracts the files contained in the zipped file.

  The basic steps are:
    1. get the zipped input stream
    2. get the zipped entries and determine output location
    3. prepare the uncompressed output stream
    4. read source zipped data and write to uncompressed stream
    5. close the source and target stream

Parameters:

zipFile - Abstract file object of the zip file.

output - Output location for the extracted files.

buildDirectory

protected void buildDirectory(java.lang.String entryName)
                       throws java.io.IOException

Creates the directory structure

java.io.IOException