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.
56 package net.jxta.impl.id.CBID;
59 import net.jxta.id.ID;
60 import net.jxta.id.IDFactory;
61 import net.jxta.impl.id.UUID.UUID;
63 import java.util.logging.Logger;
67 * A general purpose JXTA ID Format implementing all of the six standard ID
68 * Types. It was originally created for the Java 2 SE reference implementation.
69 * The 'cbid' format uses values generated from secure hash functions as the
70 * mechanism for generating canonical values for the ids it provides.
73 * @see <a href="http://spec.jxta.org/nonav/v1.0/docbook/JXTAProtocols.html#ids" target="_blank">JXTA Protocols Specification : IDs</a>
75 public class IDFormat extends net.jxta.impl.id.UUID.IDFormat {
80 private static final transient Logger LOG = Logger.getLogger(IDFormat.class.getName());
83 * Our local version of the world Peer Group ID. We need this for cases
84 * where we have to make ids which are in the world peer group. We only
85 * use this ID for those cases and never return this ID.
87 static final PeerGroupID worldPeerGroupID = new PeerGroupID(new UUID(0x5961626164616261L, 0x4A78746150325033L)); // YabadabaJXTAP2P!
90 * Our local version of the net Peer Group ID. We need this for cases
91 * where we have to make ids which are in the net peer group. We only
92 * use this ID for those cases and never return this ID.
94 static final PeerGroupID defaultNetPeerGroupID = new PeerGroupID(new UUID(0x5961626164616261L, 0x4E50472050325033L)); // YabadabaNPG P2P!
97 * This table maps our local private versions of the well known ids to the
98 * globally known version.
100 private final static Object[][] wellKnownIDs = {
101 { net.jxta.peergroup.PeerGroupID.worldPeerGroupID, worldPeerGroupID}
103 { net.jxta.peergroup.PeerGroupID.defaultNetPeerGroupID, defaultNetPeerGroupID}
107 * The instantiator for this ID Format which is used by the IDFactory.
109 public static final IDFactory.URIInstantiator INSTANTIATOR = new Instantiator();
112 * This class cannot be instantiated.
114 protected IDFormat() {}
117 * Translate from well known ID to our locally encoded versions.
119 * @param input the id to be translated.
120 * @return the translated ID or the input ID if no translation was needed.
122 static ID translateFromWellKnown(ID input) {
123 for (Object[] wellKnownID : wellKnownIDs) {
124 ID aWellKnown = (ID) wellKnownID[0];
126 if (aWellKnown.equals(input)) {
127 return (ID) wellKnownID[1];
135 * Translate from locally encoded versions to the well known versions.
137 * @param input the id to be translated.
138 * @return the translated ID or the input ID if no translation was needed.
140 static ID translateToWellKnown(ID input) {
141 for (Object[] wellKnownID : wellKnownIDs) {
142 ID aLocalEncoding = (ID) wellKnownID[1];
144 if (aLocalEncoding.equals(input)) {
145 return (ID) wellKnownID[0];