/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.clustering.jgroups;
import org.jgroups.Address;
import org.jgroups.stack.AddressGenerator;
import org.jgroups.util.ExtendedUUID;
import org.jgroups.util.Util;
/**
* An AddressGenerator which generates ExtendedUUID addresses with specified site, rack and machine ids.
*
* @author Tristan Tarrant
* @author Paul Ferraro
*/
public class TopologyAddressGenerator implements AddressGenerator {
// Based on org.jgroups.util.TopologyUUID from JGroups 3.4.x
private static final byte[] SITE = Util.stringToBytes("site-id");
private static final byte[] RACK = Util.stringToBytes("rack-id");
private static final byte[] MACHINE = Util.stringToBytes("machine-id");
private final TransportConfiguration.Topology topology;
public TopologyAddressGenerator(TransportConfiguration.Topology topology) {
this.topology = topology;
}
@Override
public Address generateAddress() {
ExtendedUUID uuid = ExtendedUUID.randomUUID();
uuid.put(SITE, Util.stringToBytes(this.topology.getSite()));
uuid.put(RACK, Util.stringToBytes(this.topology.getRack()));
uuid.put(MACHINE, Util.stringToBytes(this.topology.getMachine()));
return uuid;
}
}