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

static int

GUID_LENGTH The length of a raw GUID byte array

Constructor Summary

GuidGen()

Method Summary

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.