/*
* Copyright (c) 2001-2007 Sun Microsystems, Inc. All rights reserved.
*
* The Sun Project JXTA(TM) Software License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by Sun Microsystems, Inc. for JXTA(TM) technology."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
* not be used to endorse or promote products derived from this software
* without prior written permission. For written permission, please contact
* Project JXTA at http://www.jxta.org.
*
* 5. Products derived from this software may not be called "JXTA", nor may
* "JXTA" appear in their name, without prior written permission of Sun.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SUN
* MICROSYSTEMS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* JXTA is a registered trademark of Sun Microsystems, Inc. in the United
* States and other countries.
*
* Please see the license information page at :
* <http://www.jxta.org/project/www/license.html> for instructions on use of
* the license in source files.
*
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of Project JXTA. For more information on Project JXTA, please see
* http://www.jxta.org.
*
* This license is based on the BSD license adopted by the Apache Foundation.
*/
package net.jxta.impl.id.UUID;
/**
* An implementation of the {@link net.jxta.pipe.PipeID} ID Type.
*/
public class PipeID extends net.jxta.pipe.PipeID {
protected final static int groupIdOffset = 0;
protected final static int idOffset = PipeID.groupIdOffset + IDFormat.uuidSize;
protected final static int padOffset = PipeID.idOffset + IDFormat.uuidSize;
protected final static int padSize = IDFormat.flagsOffset - PipeID.padOffset;
/**
* The id data
*/
protected IDBytes id;
/**
* Used only internally
*
*/
protected PipeID() {
super();
id = new IDBytes(IDFormat.flagPipeID);
}
/**
* Constructor.
* Initializes contents from provided ID.
*
*
* @param id the ID data
*/
protected PipeID(IDBytes id) {
super();
this.id = id;
}
/**
* Creates a PipeID. A PeerGroupID is provided
*
* @param groupUUID the UUID of the group to which this will belong.
* @param idUUID the UUID which will be used for this pipe.
*/
protected PipeID(UUID groupUUID, UUID idUUID) {
this();
id.longIntoBytes(PipeID.groupIdOffset, groupUUID.getMostSignificantBits());
id.longIntoBytes(PipeID.groupIdOffset + 8, groupUUID.getLeastSignificantBits());
id.longIntoBytes(PipeID.idOffset, idUUID.getMostSignificantBits());
id.longIntoBytes(PipeID.idOffset + 8, idUUID.getLeastSignificantBits());
}
/**
* See {@link net.jxta.id.IDFactory.Instantiator#newPipeID(net.jxta.peergroup.PeerGroupID)}.
*/
public PipeID(PeerGroupID groupID) {
this(groupID.getUUID(), UUIDFactory.newUUID());
}
/**
* See {@link net.jxta.id.IDFactory.Instantiator#newPipeID(net.jxta.peergroup.PeerGroupID,byte[])}.
*/
public PipeID(PeerGroupID groupID, byte[] seed) {
this();
UUID groupUUID = groupID.getUUID();
id.longIntoBytes(PipeID.groupIdOffset, groupUUID.getMostSignificantBits());
id.longIntoBytes(PipeID.groupIdOffset + 8, groupUUID.getLeastSignificantBits());
for (int copySeed = Math.min(IDFormat.uuidSize, seed.length) - 1; copySeed >= 0; copySeed--) {
id.bytes[copySeed + PipeID.idOffset] = seed[copySeed];
}
// make it a valid UUID
id.bytes[PipeID.idOffset + 6] &= 0x0f;
id.bytes[PipeID.idOffset + 6] |= 0x40; /* version 4 */
id.bytes[PipeID.idOffset + 8] &= 0x3f;
id.bytes[PipeID.idOffset + 8] |= 0x80; /* IETF variant */
id.bytes[PipeID.idOffset + 10] &= 0x3f;
id.bytes[PipeID.idOffset + 10] |= 0x80; /* multicast bit */
}
/**
* {@inheritDoc}
*/
@Override
public boolean equals(Object target) {
if (this == target) {
return true;
}
if (target instanceof PipeID) {
PipeID pipeTarget = (PipeID) target;
return id.equals(pipeTarget.id);
} else {
return false;
}
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode() {
return id.hashCode();
}
/**
* {@inheritDoc}
*/
@Override
public String getIDFormat() {
return IDFormat.INSTANTIATOR.getSupportedIDFormat();
}
/**
* {@inheritDoc}
*/
@Override
public Object getUniqueValue() {
return getIDFormat() + "-" + (String) id.getUniqueValue();
}
/**
* {@inheritDoc}
*/
@Override
public net.jxta.id.ID getPeerGroupID() {
UUID groupUUID = new UUID(id.bytesIntoLong(PipeID.groupIdOffset), id.bytesIntoLong(PipeID.groupIdOffset + 8));
PeerGroupID groupID = new PeerGroupID(groupUUID);
// convert to the generic world PGID as necessary
return IDFormat.translateToWellKnown(groupID);
}
}