oracle.ide.util

Class GuidGen

java.lang.Object

oracle.ide.util.GuidGen

public class GuidGen
extends java.lang.Object

This static class provided utilties for generation and manipulation of DFC style Globally Unique Identifiers, using the original HP/OSF UUID reference implemenation as a basis. Since the Java runtime does not allow access to the full IEEE 802 48-bit ethernet address of a host (if indeed there is one) this implementation attempts to use the 32-bit IP number in the first instance, and defaults to the sample pseudo-unique algorithm if the IP address is not available.
A native method-based extension will be provided in due course to provide true GUID values.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GUID_LENGTH The length of a raw GUID byte array

Constructor Summary

Constructors

Constructor and Description
GuidGen()

Method Summary

Methods

Modifier and Type	Method and Description
static void	byteToHex(java.lang.StringBuffer buff, byte byteVal) Coverts the specified byte value to a hexadecimal representaion, and appends this to the specified String buffer.
static byte[]	toRaw(java.lang.String strUUID) Convert a standard UUID string representation to a raw 16-byte UUID.
static java.lang.String	toString(byte[] uuidRaw) Convert a raw UUID to a standard string representation.
static byte[]	uuidCreate() Generate a raw 128-bit (16-byte) UUID.

Methods inherited from class java.lang.Object

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

Field Detail

GUID_LENGTH

public static final int GUID_LENGTH

The length of a raw GUID byte array

See Also:

Constant Field Values

Constructor Detail

GuidGen

public GuidGen()

Method Detail

uuidCreate

public static byte[] uuidCreate()

Generate a raw 128-bit (16-byte) UUID.

Returns:

a raw 16-byte UUID

toString

public static java.lang.String toString(byte[] uuidRaw)

Convert a raw UUID to a standard string representation.

Parameters:

uuidRaw - A raw 16-byte UUID

Returns:

String representation of the UUID. Null on failure.

toRaw

public static byte[] toRaw(java.lang.String strUUID)

Convert a standard UUID string representation to a raw 16-byte UUID.

Parameters:

strUUID - A standard string representation of a UUID

Returns:

a raw 16-byte UUID. Null on failure

byteToHex

public static void byteToHex(java.lang.StringBuffer buff,
             byte byteVal)

Coverts the specified byte value to a hexadecimal representaion, and appends this to the specified String buffer.

Parameters:

buff - the StringBuffer

byteVal - the byte value to be converted.