uk.co.thomasc.steamkit.util

Class ZipUtil

java.lang.Object

uk.co.thomasc.steamkit.util.ZipUtil

public class ZipUtil
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private static int	CentralDirectoryHeader
private static short	DeflateCompression
private static int	EndOfDirectoryHeader
private static int	LocalFileHeader
private static short	Version

Constructor Summary

Constructors

Constructor and Description
ZipUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	compress(byte[] buffer)
static byte[]	deCompress(byte[] buffer)
private static byte[]	deflateBuffer(byte[] uncompressedBuffer)
private static byte[]	inflateBuffer(byte[] compressedBuffer, Passable<Integer> decompressedSize)
private static boolean	peekHeader(BinaryReader reader, int expecting)
private static int	readCentralDirectory(BinaryReader reader, Passable<String> fileName)
private static int	readEndOfDirectory(BinaryReader reader)
private static byte[]	readLocalFile(BinaryReader reader, Passable<String> fileName, Passable<Integer> decompressedSize)
private static int	writeCentralDirectory(BinaryWriter writer, String fileName, int CRC, int compressedSize, int decompressedSize, int localHeaderOffset)
private static void	writeEndOfDirectory(BinaryWriter writer, int count, int CDRSize, int CDROffset)
private static int	writeHeader(BinaryWriter writer, int header)
private static void	writeLocalFile(BinaryWriter writer, String fileName, int CRC, int decompressedSize, byte[] processedBuffer)

Methods inherited from class java.lang.Object

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

Field Detail

LocalFileHeader

private static int LocalFileHeader

CentralDirectoryHeader

private static int CentralDirectoryHeader

EndOfDirectoryHeader

private static int EndOfDirectoryHeader

DeflateCompression

private static short DeflateCompression

Version

private static short Version

Constructor Detail

ZipUtil

public ZipUtil()

Method Detail

deCompress

public static byte[] deCompress(byte[] buffer)
                         throws IOException

Throws:

IOException

compress

public static byte[] compress(byte[] buffer)
                       throws IOException

Throws:

IOException

writeHeader

private static int writeHeader(BinaryWriter writer,
              int header)
                        throws IOException

Throws:

IOException

writeEndOfDirectory

private static void writeEndOfDirectory(BinaryWriter writer,
                       int count,
                       int CDRSize,
                       int CDROffset)
                                 throws IOException

Throws:

IOException

writeCentralDirectory

private static int writeCentralDirectory(BinaryWriter writer,
                        String fileName,
                        int CRC,
                        int compressedSize,
                        int decompressedSize,
                        int localHeaderOffset)
                                  throws IOException

Throws:

IOException

writeLocalFile

private static void writeLocalFile(BinaryWriter writer,
                  String fileName,
                  int CRC,
                  int decompressedSize,
                  byte[] processedBuffer)
                            throws IOException

Throws:

IOException

peekHeader

private static boolean peekHeader(BinaryReader reader,
                 int expecting)
                           throws IOException

Throws:

IOException

readEndOfDirectory

private static int readEndOfDirectory(BinaryReader reader)
                               throws IOException

Throws:

IOException

readCentralDirectory

private static int readCentralDirectory(BinaryReader reader,
                       Passable<String> fileName)
                                 throws IOException

Throws:

IOException

readLocalFile

private static byte[] readLocalFile(BinaryReader reader,
                   Passable<String> fileName,
                   Passable<Integer> decompressedSize)
                             throws IOException

Throws:

IOException

inflateBuffer

private static byte[] inflateBuffer(byte[] compressedBuffer,
                   Passable<Integer> decompressedSize)
                             throws IOException

Throws:

IOException

deflateBuffer

private static byte[] deflateBuffer(byte[] uncompressedBuffer)
                             throws IOException

Throws:

IOException