com.iwombat.util

Class GUIDUtil

java.lang.Object

com.iwombat.util.GUIDUtil

public class GUIDUtil
extends Object

Generic utility for converting byte-arrays containing UUIDs to Microsoft style GUID strings. This entails some rather unique little-to-big endian conversions.

Due to how MS structures a UUID (GUID) in c and its decomposition into a string, there are some rather unique little endian conversions that take place.
For example:
Hex string: a1b1c1d1a2b2a3b3a4b4a5b5c5d5e5f5
GUID string: {d1c1b1a1-b2a2-b3a3-b4a4-a5b5c5d5e5f5}


Implied MS c-struct:

 struct {
   int lowTime;
   short midTime;
   short highTimeAndVersion;
   short sequenceAndVariant;
   uchar[] macaddr;
 } GUID
 

Note: These conversions will leave the original version and variant in tact and will not convert to the MS version and variant or vice-versa.

Version:

$Revision: 1.2 $

Date:

$Date: 2007/12/25 10:18:57 $

Author:

$Author: vikramrc $

Constructor Summary

Constructors

Constructor and Description
GUIDUtil()

Method Summary

Modifier and Type	Method and Description
static String	guidStringFromHexString(String hexString) Convert hex string to GUID string
static String	hexStringFromGUID(String guidString) Convert GUID string to a HEX string

Methods inherited from class java.lang.Object

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

Constructor Detail

GUIDUtil

public GUIDUtil()

Method Detail

guidStringFromHexString

public static String guidStringFromHexString(String hexString)

Convert hex string to GUID string

Parameters:

hexString - - an untokenized hex string

Returns:

GUID string

Throws:

IllegalArgumentException

hexStringFromGUID

public static String hexStringFromGUID(String guidString)

Convert GUID string to a HEX string

Parameters:

guidString - - tokenized MS-style GUID string

Returns:

hexString - untokenized hexString

Throws:

IllegalArgumentException