2 * Copyright (c) 2001-2007 Sun Microsystems, Inc. All rights reserved.
4 * The Sun Project JXTA(TM) Software License
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
16 * 3. The end-user documentation included with the redistribution, if any, must
17 * include the following acknowledgment: "This product includes software
18 * developed by Sun Microsystems, Inc. for JXTA(TM) technology."
19 * Alternately, this acknowledgment may appear in the software itself, if
20 * and wherever such third-party acknowledgments normally appear.
22 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
23 * not be used to endorse or promote products derived from this software
24 * without prior written permission. For written permission, please contact
25 * Project JXTA at http://www.jxta.org.
27 * 5. Products derived from this software may not be called "JXTA", nor may
28 * "JXTA" appear in their name, without prior written permission of Sun.
30 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
32 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SUN
33 * MICROSYSTEMS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
36 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
37 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
38 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
39 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 * JXTA is a registered trademark of Sun Microsystems, Inc. in the United
42 * States and other countries.
44 * Please see the license information page at :
45 * <http://www.jxta.org/project/www/license.html> for instructions on use of
46 * the license in source files.
48 * ====================================================================
50 * This software consists of voluntary contributions made by many individuals
51 * on behalf of Project JXTA. For more information on Project JXTA, please see
52 * http://www.jxta.org.
54 * This license is based on the BSD license adopted by the Apache Foundation.
57 package net.jxta.impl.id.CBID;
60 import net.jxta.impl.id.UUID.IDBytes;
61 import net.jxta.impl.id.UUID.UUID;
62 import net.jxta.impl.id.UUID.UUIDFactory;
64 import java.io.IOException;
65 import java.io.InputStream;
66 import java.security.MessageDigest;
67 import java.security.NoSuchAlgorithmException;
68 import java.security.ProviderException;
69 import java.util.logging.Logger;
73 * An implementation of the {@link net.jxta.codat.CodatID} ID Type.
75 public class CodatID extends net.jxta.impl.id.UUID.CodatID {
80 private static final transient Logger LOG = Logger.getLogger(CodatID.class.getName());
83 * Internal constructor
90 * Intializes contents from provided bytes.
92 * @param id the ID data
94 protected CodatID(IDBytes id) {
99 * See {@link net.jxta.id.IDFactory.Instantiator#newCodatID(net.jxta.peergroup.PeerGroupID)}.
101 * @param groupID the GroupID
103 public CodatID(PeerGroupID groupID) {
104 super(groupID.getUUID(), UUIDFactory.newUUID());
108 * See {@link net.jxta.id.IDFactory.Instantiator#newCodatID(net.jxta.peergroup.PeerGroupID,byte[])}.
110 * @param groupID the GroupID
111 * @param seed the seed
113 public CodatID(PeerGroupID groupID, byte[] seed) {
116 UUID groupCBID = groupID.getUUID();
118 id.longIntoBytes(CodatID.groupIdOffset, groupCBID.getMostSignificantBits());
119 id.longIntoBytes(CodatID.groupIdOffset + 8, groupCBID.getLeastSignificantBits());
121 MessageDigest digester = null;
124 digester = MessageDigest.getInstance("SHA-1");
125 } catch (NoSuchAlgorithmException caught) {
129 if (digester == null) {
130 throw new ProviderException("SHA1 digest algorithm not found");
133 byte[] digest = digester.digest(seed);
135 // we keep only the 128 most significant bits
136 byte[] buf16 = new byte[16];
138 System.arraycopy(digest, 0, buf16, 0, 16);
140 UUID peerCBID = UUIDFactory.newUUID(buf16);
142 id.longIntoBytes(CodatID.idOffset, peerCBID.getMostSignificantBits());
143 id.longIntoBytes(CodatID.idOffset + 8, peerCBID.getLeastSignificantBits());
147 * See {@link net.jxta.id.IDFactory.Instantiator#newCodatID(net.jxta.peergroup.PeerGroupID,InputStream)}.
149 * @param groupID the GroupID
150 * @param in the input stream
151 * @throws IOException if an io error occurs
153 public CodatID(PeerGroupID groupID, InputStream in) throws IOException {
158 * See {@link net.jxta.id.IDFactory.Instantiator#newCodatID(net.jxta.peergroup.PeerGroupID,InputStream)}.
160 * @param groupID the GroupID
161 * @param seed the seed
162 * @param in the input stream
163 * @throws IOException if an io error occurs
165 public CodatID(PeerGroupID groupID, byte[] seed, InputStream in) throws IOException {
175 public String getIDFormat() {
176 return IDFormat.INSTANTIATOR.getSupportedIDFormat();
183 public net.jxta.id.ID getPeerGroupID() {
184 UUID groupCBID = new UUID(id.bytesIntoLong(CodatID.groupIdOffset), id.bytesIntoLong(CodatID.groupIdOffset + 8));
186 PeerGroupID groupID = new PeerGroupID(groupCBID);
188 // convert to the generic world PGID as necessary
189 return IDFormat.translateToWellKnown(groupID);
193 * Returns the UUID associated with this CodatID.
195 * @return The UUID associated with this CodatID.
197 public UUID getUUID() {
198 return new UUID(id.bytesIntoLong(CodatID.idOffset), id.bytesIntoLong(CodatID.idOffset + 8));