net.sf.jpkgmk.util
Class ChecksumUtil

java.lang.Object
  net.sf.jpkgmk.util.ChecksumUtil

public class ChecksumUtil
extends java.lang.Object

Since:

1.0

Version:

$Revision: 2 $ $Date: 2008-08-20 21:14:19 +0200 (Mi, 20 Aug 2008) $

Author:

gommma (gommma AT users.sourceforge.net), Last changed by: $Author: gommma $

Method Summary

static java.lang.Long	createChecksum(java.io.File file, java.util.zip.Checksum checksum) Returns the checksum for the given file
static java.lang.Long	createChecksumCrc32(java.io.File file) Returns the CRC32 checksum for the given file
static java.lang.Long	createUnixCksum(byte[] data)
static java.lang.Long	createUnixCksum(java.io.File file)
static java.lang.String	md5(java.io.File data)
static java.lang.String	md5(java.io.InputStream data)

Methods inherited from class java.lang.Object

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

Method Detail

md5

public static java.lang.String md5(java.io.File data)
                            throws java.security.NoSuchAlgorithmException,
                                   java.io.IOException

Parameters:

data -

Returns:

The MD5 checksum as hex string

Throws:

java.security.NoSuchAlgorithmException

java.io.IOException

md5

public static java.lang.String md5(java.io.InputStream data)
                            throws java.security.NoSuchAlgorithmException,
                                   java.io.IOException

Parameters:

data -

Returns:

The MD5 checksum as hex string

Throws:

java.security.NoSuchAlgorithmException

java.io.IOException

createChecksumCrc32

public static java.lang.Long createChecksumCrc32(java.io.File file)
                                          throws java.io.IOException

Returns the CRC32 checksum for the given file

Parameters:

file -

Returns:

Throws:

java.io.IOException

createUnixCksum

public static java.lang.Long createUnixCksum(java.io.File file)
                                      throws java.io.IOException,
                                             java.security.NoSuchAlgorithmException

Throws:

java.io.IOException

java.security.NoSuchAlgorithmException

createUnixCksum

public static java.lang.Long createUnixCksum(byte[] data)
                                      throws java.io.IOException,
                                             java.security.NoSuchAlgorithmException

Throws:

java.io.IOException

java.security.NoSuchAlgorithmException

createChecksum

public static java.lang.Long createChecksum(java.io.File file,
                                            java.util.zip.Checksum checksum)
                                     throws java.io.IOException

Returns the checksum for the given file

Parameters:

file -

checksum -

Returns:

Throws:

java.io.IOException