/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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.infinispan.subsystem;
import static org.jboss.as.clustering.infinispan.subsystem.CacheContainerResourceDefinition.Capability.KEY_AFFINITY_FACTORY;
import java.security.PrivilegedAction;
import java.util.Collections;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.function.Function;
import java.util.function.Supplier;
import org.infinispan.Cache;
import org.infinispan.affinity.KeyAffinityService;
import org.infinispan.affinity.KeyGenerator;
import org.infinispan.affinity.impl.KeyAffinityServiceImpl;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.remoting.transport.Address;
import org.wildfly.clustering.infinispan.spi.affinity.KeyAffinityServiceFactory;
import org.wildfly.clustering.service.AsynchronousServiceBuilder;
import org.wildfly.clustering.service.Builder;
import org.wildfly.clustering.service.SuppliedValueService;
import org.jboss.as.clustering.controller.CapabilityServiceNameProvider;
import org.jboss.as.controller.PathAddress;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.threads.JBossThreadFactory;
import static java.security.AccessController.doPrivileged;
/**
* Key affinity service factory that will only generates keys for use by the local node.
* Returns a trivial implementation if the specified cache is not distributed.
* @author Paul Ferraro
*/
public class KeyAffinityServiceFactoryBuilder extends CapabilityServiceNameProvider implements Builder<KeyAffinityServiceFactory> {
private volatile int bufferSize = 100;
public KeyAffinityServiceFactoryBuilder(PathAddress address) {
super(KEY_AFFINITY_FACTORY, address);
}
public KeyAffinityServiceFactoryBuilder setBufferSize(int size) {
this.bufferSize = size;
return this;
}
@Override
public ServiceBuilder<KeyAffinityServiceFactory> build(ServiceTarget target) {
int bufferSize = this.bufferSize;
Function<ExecutorService, KeyAffinityServiceFactory> mapper = executor -> new KeyAffinityServiceFactory() {
@Override
public <K> KeyAffinityService<K> createService(Cache<K, ?> cache, KeyGenerator<K> generator) {
CacheMode mode = cache.getCacheConfiguration().clustering().cacheMode();
return mode.isDistributed() || mode.isReplicated() ? new KeyAffinityServiceImpl<>(executor, cache, generator, bufferSize, Collections.singleton(cache.getCacheManager().getAddress()), false) : new SimpleKeyAffinityService<>(generator);
}
};
Supplier<ExecutorService> supplier = () -> {
ThreadGroup threadGroup = new ThreadGroup("KeyAffinityService ThreadGroup");
String namePattern = "KeyAffinityService Thread Pool -- %t";
PrivilegedAction<ThreadFactory> action = () -> new JBossThreadFactory(threadGroup, Boolean.FALSE, null, namePattern, null, null);
return Executors.newCachedThreadPool(doPrivileged(action));
};
Service<KeyAffinityServiceFactory> service = new SuppliedValueService<>(mapper, supplier, ExecutorService::shutdown);
return new AsynchronousServiceBuilder<>(this.getServiceName(), service).startSynchronously().build(target)
.setInitialMode(ServiceController.Mode.ON_DEMAND);
}
private static class SimpleKeyAffinityService<K> implements KeyAffinityService<K> {
private final KeyGenerator<K> generator;
private volatile boolean started = false;
SimpleKeyAffinityService(KeyGenerator<K> generator) {
this.generator = generator;
}
@Override
public void start() {
this.started = true;
}
@Override
public void stop() {
this.started = false;
}
@Override
public K getKeyForAddress(Address address) {
return this.generator.getKey();
}
@Override
public K getCollocatedKey(K otherKey) {
return this.generator.getKey();
}
@Override
public boolean isStarted() {
return this.started;
}
}
}