Class ChecksumHelper

java.lang.Object

org.apache.ivy.util.ChecksumHelper

public final class ChecksumHelper
extends Object

Method Summary

Modifier and Type	Method	Description
static String	byteArrayToHexString(byte[] in)	Convert a byte[] array to readable string format.
static void	check(File dest, File checksumFile, String algorithm)	Checks the checksum of the given file against the given checksumFile, and throws an IOException if the checksum is not compliant
static String	computeAsString(File f, String algorithm)
static boolean	isKnownAlgorithm(String algorithm)

Methods inherited from class Object

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

Method Details

check

public static void check(File dest,
 File checksumFile,
 String algorithm)
                  throws IOException

Checks the checksum of the given file against the given checksumFile, and throws an IOException if the checksum is not compliant

Parameters:

dest - the file to test

checksumFile - the file containing the expected checksum

algorithm - the checksum algorithm to use

Throws:

IOException - if an IO problem occur while reading files or if the checksum is not compliant

computeAsString

public static String computeAsString(File f,
 String algorithm)
                              throws IOException

Throws:

IOException

isKnownAlgorithm

public static boolean isKnownAlgorithm(String algorithm)

byteArrayToHexString

public static String byteArrayToHexString(byte[] in)

Convert a byte[] array to readable string format. This makes the "hex" readable!

Parameters:

in - byte[] buffer to convert to string format

Returns:

result String buffer in String format