Bug 496259 - Remove implementation of UniversalUniqueIdentifier

Change-Id: I1d72a774f7cde0dd9942aa2af00b506352f3a92f
Signed-off-by: Thomas Watson <tjwatson@us.ibm.com>

3 files changed, 2 insertions, 272 deletions

diff --git a/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxBundle.java b/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxBundle.java
index 6ef74a951..7aa5a6c57 100644
--- a/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxBundle.java
+++ b/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxBundle.java
@@ -135,7 +135,7 @@ public class EquinoxBundle implements Bundle, BundleReference {
 				String initUUID = getEquinoxContainer().getConfiguration().setConfiguration(EquinoxConfiguration.PROP_INIT_UUID, Boolean.TRUE.toString());
 				if (initUUID != null) {
 					// this is not the first framework init, need to generate a new UUID
-					getEquinoxContainer().getConfiguration().setConfiguration(Constants.FRAMEWORK_UUID, new UniversalUniqueIdentifier().toString());
+					getEquinoxContainer().getConfiguration().setConfiguration(Constants.FRAMEWORK_UUID, UUID.randomUUID().toString());
 				}
 				getEquinoxContainer().init();
 				addInitFrameworkListeners();
diff --git a/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxConfiguration.java b/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxConfiguration.java
index 4fc048013..619a1c0e6 100644
--- a/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxConfiguration.java
+++ b/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/EquinoxConfiguration.java
@@ -1029,7 +1029,7 @@ public class EquinoxConfiguration implements EnvironmentInfo {
 		}
 
 		// set the initial UUID so that it is set as soon as possible
-		String uuid = new UniversalUniqueIdentifier().toString();
+		String uuid = UUID.randomUUID().toString();
 		setConfiguration(FRAMEWORK_UUID, uuid);
 	}
 
diff --git a/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/UniversalUniqueIdentifier.java b/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/UniversalUniqueIdentifier.java
deleted file mode 100644
index 7dff105af..000000000
--- a/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/internal/framework/UniversalUniqueIdentifier.java
+++ /dev/null
@@ -1,270 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2012 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- * 
- * Contributors:
- *     IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.osgi.internal.framework;
-
-import java.io.*;
-import java.math.BigInteger;
-import java.net.InetAddress;
-import java.net.UnknownHostException;
-import java.security.SecureRandom;
-import java.util.GregorianCalendar;
-import java.util.Random;
-
-public class UniversalUniqueIdentifier {
-
-	/* INSTANCE FIELDS =============================================== */
-
-	private byte[] fBits = new byte[BYTES_SIZE];
-
-	/* NON-FINAL PRIVATE STATIC FIELDS =============================== */
-
-	private volatile static BigInteger fgPreviousClockValue;
-	private volatile static int fgClockAdjustment = 0;
-	private volatile static int fgClockSequence = -1;
-	private final static byte[] nodeAddress;
-
-	static {
-		nodeAddress = computeNodeAddress();
-	}
-
-	/* PRIVATE STATIC FINAL FIELDS =================================== */
-
-	private final static Random fgRandomNumberGenerator = new Random();
-
-	/* PUBLIC STATIC FINAL FIELDS ==================================== */
-
-	public static final int BYTES_SIZE = 16;
-	public static final byte[] UNDEFINED_UUID_BYTES = new byte[16];
-	public static final int MAX_CLOCK_SEQUENCE = 0x4000;
-	public static final int MAX_CLOCK_ADJUSTMENT = 0x7FFF;
-	public static final int TIME_FIELD_START = 0;
-	public static final int TIME_FIELD_STOP = 6;
-	public static final int TIME_HIGH_AND_VERSION = 7;
-	public static final int CLOCK_SEQUENCE_HIGH_AND_RESERVED = 8;
-	public static final int CLOCK_SEQUENCE_LOW = 9;
-	public static final int NODE_ADDRESS_START = 10;
-	public static final int NODE_ADDRESS_BYTE_SIZE = 6;
-
-	public static final int BYTE_MASK = 0xFF;
-
-	public static final int HIGH_NIBBLE_MASK = 0xF0;
-
-	public static final int LOW_NIBBLE_MASK = 0x0F;
-
-	public static final int SHIFT_NIBBLE = 4;
-
-	public static final int ShiftByte = 8;
-
-	/**
-	 UniversalUniqueIdentifier default constructor returns a
-	 new instance that has been initialized to a unique value.
-	 */
-	public UniversalUniqueIdentifier() {
-		this.setVersion(1);
-		this.setVariant(1);
-		this.setTimeValues();
-		this.setNode(getNodeAddress());
-	}
-
-	private void appendByteString(StringBuffer buffer, byte value) {
-		String hexString;
-
-		if (value < 0)
-			hexString = Integer.toHexString(256 + value);
-		else
-			hexString = Integer.toHexString(value);
-		if (hexString.length() == 1)
-			buffer.append("0"); //$NON-NLS-1$
-		buffer.append(hexString);
-	}
-
-	private static BigInteger clockValueNow() {
-		GregorianCalendar now = new GregorianCalendar();
-		BigInteger nowMillis = BigInteger.valueOf(now.getTime().getTime());
-		BigInteger baseMillis = BigInteger.valueOf(now.getGregorianChange().getTime());
-
-		return (nowMillis.subtract(baseMillis).multiply(BigInteger.valueOf(10000L)));
-	}
-
-	/**
-	 * Answers the node address attempting to mask the IP
-	 * address of this machine.
-	 * 
-	 * @return byte[] the node address
-	 */
-	private static byte[] computeNodeAddress() {
-
-		byte[] address = new byte[NODE_ADDRESS_BYTE_SIZE];
-
-		// Seed the secure randomizer with some oft-varying inputs
-		int thread = Thread.currentThread().hashCode();
-		long time = System.currentTimeMillis();
-		int objectId = System.identityHashCode(new String());
-		ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
-		DataOutputStream out = new DataOutputStream(byteOut);
-		byte[] ipAddress = getIPAddress();
-
-		try {
-			if (ipAddress != null)
-				out.write(ipAddress);
-			out.write(thread);
-			out.writeLong(time);
-			out.write(objectId);
-			out.close();
-		} catch (IOException exc) {
-			//ignore the failure, we're just trying to come up with a random seed
-		}
-		byte[] rand = byteOut.toByteArray();
-
-		SecureRandom randomizer = new SecureRandom(rand);
-		randomizer.nextBytes(address);
-
-		// set the MSB of the first octet to 1 to distinguish from IEEE node addresses
-		address[0] = (byte) (address[0] | (byte) 0x80);
-
-		return address;
-	}
-
-	/**
-	 Answers the IP address of the local machine using the
-	 Java API class <code>InetAddress</code>.
-
-	 @return byte[] the network address in network order
-	 @see    java.net.InetAddress#getLocalHost()
-	 @see    java.net.InetAddress#getAddress()
-	 */
-	private static byte[] getIPAddress() {
-		try {
-			return InetAddress.getLocalHost().getAddress();
-		} catch (UnknownHostException e) {
-			//valid for this to be thrown be a machine with no IP connection
-			//It is VERY important NOT to throw this exception
-			return null;
-		} catch (ArrayIndexOutOfBoundsException e) {
-			// there appears to be a bug in the VM if there is an alias
-			// see bug 354820.  As above it is important not to throw this
-			return null;
-		}
-	}
-
-	private static byte[] getNodeAddress() {
-		return nodeAddress;
-	}
-
-	private static int nextClockSequence() {
-
-		if (fgClockSequence == -1)
-			fgClockSequence = (int) (fgRandomNumberGenerator.nextDouble() * MAX_CLOCK_SEQUENCE);
-
-		fgClockSequence = (fgClockSequence + 1) % MAX_CLOCK_SEQUENCE;
-
-		return fgClockSequence;
-	}
-
-	private static BigInteger nextTimestamp() {
-
-		BigInteger timestamp = clockValueNow();
-		int timestampComparison;
-
-		timestampComparison = timestamp.compareTo(fgPreviousClockValue);
-
-		if (timestampComparison == 0) {
-			if (fgClockAdjustment == MAX_CLOCK_ADJUSTMENT) {
-				while (timestamp.compareTo(fgPreviousClockValue) == 0)
-					timestamp = clockValueNow();
-				timestamp = nextTimestamp();
-			} else
-				fgClockAdjustment++;
-		} else {
-			fgClockAdjustment = 0;
-
-			if (timestampComparison < 0)
-				nextClockSequence();
-		}
-
-		return timestamp;
-	}
-
-	private void setClockSequence(int clockSeq) {
-		int clockSeqHigh = (clockSeq >>> ShiftByte) & LOW_NIBBLE_MASK;
-		int reserved = fBits[CLOCK_SEQUENCE_HIGH_AND_RESERVED] & HIGH_NIBBLE_MASK;
-
-		fBits[CLOCK_SEQUENCE_HIGH_AND_RESERVED] = (byte) (reserved | clockSeqHigh);
-		fBits[CLOCK_SEQUENCE_LOW] = (byte) (clockSeq & BYTE_MASK);
-	}
-
-	private void setNode(byte[] bytes) {
-
-		for (int index = 0; index < NODE_ADDRESS_BYTE_SIZE; index++)
-			fBits[index + NODE_ADDRESS_START] = bytes[index];
-	}
-
-	private void setTimestamp(BigInteger timestamp) {
-		BigInteger value = timestamp;
-		BigInteger bigByte = BigInteger.valueOf(256L);
-		BigInteger[] results;
-		int version;
-		int timeHigh;
-
-		for (int index = TIME_FIELD_START; index < TIME_FIELD_STOP; index++) {
-			results = value.divideAndRemainder(bigByte);
-			value = results[0];
-			fBits[index] = (byte) results[1].intValue();
-		}
-		version = fBits[TIME_HIGH_AND_VERSION] & HIGH_NIBBLE_MASK;
-		timeHigh = value.intValue() & LOW_NIBBLE_MASK;
-		fBits[TIME_HIGH_AND_VERSION] = (byte) (timeHigh | version);
-	}
-
-	private synchronized void setTimeValues() {
-		this.setTimestamp(timestamp());
-		this.setClockSequence(fgClockSequence);
-	}
-
-	private int setVariant(int variantIdentifier) {
-		int clockSeqHigh = fBits[CLOCK_SEQUENCE_HIGH_AND_RESERVED] & LOW_NIBBLE_MASK;
-		int variant = variantIdentifier & LOW_NIBBLE_MASK;
-
-		fBits[CLOCK_SEQUENCE_HIGH_AND_RESERVED] = (byte) ((variant << SHIFT_NIBBLE) | clockSeqHigh);
-		return (variant);
-	}
-
-	private void setVersion(int versionIdentifier) {
-		int timeHigh = fBits[TIME_HIGH_AND_VERSION] & LOW_NIBBLE_MASK;
-		int version = versionIdentifier & LOW_NIBBLE_MASK;
-
-		fBits[TIME_HIGH_AND_VERSION] = (byte) (timeHigh | (version << SHIFT_NIBBLE));
-	}
-
-	private static BigInteger timestamp() {
-		BigInteger timestamp;
-
-		if (fgPreviousClockValue == null) {
-			fgClockAdjustment = 0;
-			nextClockSequence();
-			timestamp = clockValueNow();
-		} else
-			timestamp = nextTimestamp();
-
-		fgPreviousClockValue = timestamp;
-		return fgClockAdjustment == 0 ? timestamp : timestamp.add(BigInteger.valueOf(fgClockAdjustment));
-	}
-
-	public String toString() {
-		StringBuffer buffer = new StringBuffer();
-		for (int i = 0; i < fBits.length; i++) {
-			if (i == 4 || i == 6 || i == 8 || i == 10)
-				buffer.append('-');
-			appendByteString(buffer, fBits[i]);
-		}
-		return buffer.toString();
-	}
-}