org.xmlactions.common.zip

Class Zipper

java.lang.Object

org.xmlactions.common.zip.Zipper

public class Zipper
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Zipper() Creates a new instance of Zipper

Method Summary

Modifier and Type	Method and Description
byte[]	compress(byte[] inputData)
byte[]	expand(byte[] compressedData) expand a compressed data byte array to it's original form.
int	getCompressedFileSizes(java.io.File file) Returns the total compressed size of all files in the zip file
int	getFileCount(java.io.File file) Returns the number of files in a zip file
int	getUncompressedFileSizes(java.io.File file) Returns the total uncompressed size of all files in the zip file
static boolean	isZip(java.io.File file) Checks if a file is a zip file or not

Methods inherited from class java.lang.Object

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

Constructor Detail

Zipper

public Zipper()

Creates a new instance of Zipper

Method Detail

isZip

public static boolean isZip(java.io.File file)

Checks if a file is a zip file or not

Parameters:

file - is the file to check

Returns:

true if is a zip file else false

getFileCount

public int getFileCount(java.io.File file)

Returns the number of files in a zip file

Parameters:

file - is the file to check

Returns:

number of files in the zip file or 0 if none or not zip file

getCompressedFileSizes

public int getCompressedFileSizes(java.io.File file)

Returns the total compressed size of all files in the zip file

Parameters:

file - is the file to check

Returns:

the total compressed size of all files in the zip file or 0 if something wrong

getUncompressedFileSizes

public int getUncompressedFileSizes(java.io.File file)

Returns the total uncompressed size of all files in the zip file

Parameters:

file - is the file to check

Returns:

the total uncompressed size of all files in the zip file or 0 if something wrong

compress

public byte[] compress(byte[] inputData)
                throws java.io.IOException

Throws:

java.io.IOException

expand

public byte[] expand(byte[] compressedData)
              throws java.util.zip.DataFormatException,
                     java.io.IOException

expand a compressed data byte array to it's original form.

Parameters:

compressedData - is the compressedData to expand

Throws:

java.util.zip.DataFormatException - IOException

java.io.IOException