/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, 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.wildfly.clustering.infinispan.spi.distribution;
import org.infinispan.Cache;
import org.infinispan.distribution.DistributionManager;
import org.infinispan.distribution.ch.ConsistentHash;
import org.infinispan.remoting.transport.Address;
/**
* {@link Locality} implementation based on a {@link ConsistentHash}.
* @author Paul Ferraro
*/
public class ConsistentHashLocality implements Locality {
private final Address localAddress;
private final ConsistentHash hash;
public ConsistentHashLocality(Cache<?, ?> cache) {
this(cache.getCacheManager().getAddress(), cache.getAdvancedCache().getDistributionManager());
}
private ConsistentHashLocality(Address localAddress, DistributionManager dist) {
this(localAddress, (dist != null) ? dist.getConsistentHash() : null);
}
public ConsistentHashLocality(Address localAddress, ConsistentHash hash) {
this.localAddress = localAddress;
this.hash = hash;
}
@Override
public boolean isLocal(Object key) {
if (this.localAddress == null) return true;
if (this.hash == null) return true;
return this.localAddress.equals(this.hash.locatePrimaryOwner(key));
}
}