Package fr.becpg.repo.helper

Class CheckSumHelper

java.lang.Object

fr.becpg.repo.helper.CheckSumHelper

public class CheckSumHelper
extends Object

CheckSumHelper class.

Version:

$Id: $Id

Author:

matthieu

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.apache.commons.logging.Log	logger

Constructor Summary

Constructors

Modifier	Constructor	Description
private	CheckSumHelper()

Method Summary

Modifier and Type	Method	Description
static String	hashChecksum(String value)	Creates a compact checksum for a large textual value using a fast CRC32C hash.
static boolean	isSameChecksum(String key, String value, String checksum)	isSameChecksum.
static String	updateChecksum(String key, String value, String checksum)	updateChecksum.

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final org.apache.commons.logging.Log logger

Constructor Details

CheckSumHelper

private CheckSumHelper()

Method Details

updateChecksum

public static String updateChecksum(String key,
 String value,
 String checksum)

updateChecksum.

Parameters:

key - a String object.

value - a String object.

checksum - a String object.

Returns:

a String object.

isSameChecksum

public static boolean isSameChecksum(String key,
 String value,
 String checksum)

isSameChecksum.

Parameters:

key - a String object.

value - a String object.

checksum - a String object.

Returns:

a boolean.

hashChecksum

public static String hashChecksum(String value)

Creates a compact checksum for a large textual value using a fast CRC32C hash.

Parameters:

value - the value to hash

Returns:

the hashed checksum encoded as a hexadecimal string, or null if the value is null