/*
* JBoss, Home of Professional Open Source
* Copyright 2009 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt 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.infinispan.lucene.testutils;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.SynchronousQueue;
import net.jcip.annotations.GuardedBy;
import net.jcip.annotations.ThreadSafe;
import org.infinispan.Cache;
import org.infinispan.config.Configuration;
import org.infinispan.manager.CacheContainer;
import org.infinispan.test.TestingUtil;
import org.infinispan.test.fwk.TestCacheManagerFactory;
/**
* CacheFactory useful to create clustered caches on-demand in several tests.
* The same thread is used to actually create each cache, making it possible to create
* several connected caches even though the testing suite in infinispan isolates different threads.
*
* @author Sanne Grinovero
* @since 4.0
*/
@ThreadSafe
@SuppressWarnings("unchecked")
public class ClusteredCacheFactory {
private final BlockingQueue<Configuration> requests = new SynchronousQueue<Configuration>();
private final BlockingQueue<Cache> results = new SynchronousQueue<Cache>();
private final ExecutorService executor = Executors.newSingleThreadExecutor();
private final Configuration cfg;
@GuardedBy("this") private boolean started = false;
@GuardedBy("this") private boolean stopped = false;
/**
* Create a new ClusteredCacheFactory.
*
* @param cfg defines the configuration used to build the caches
*/
public ClusteredCacheFactory(Configuration cfg) {
this.cfg = cfg;
}
/**
* Create a cache using default configuration
* @throws InterruptedException if interrupted while waiting for the cache construction
*/
public synchronized Cache createClusteredCache() throws InterruptedException {
if (!started)
throw new IllegalStateException("was not started");
if (stopped)
throw new IllegalStateException("was already stopped");
requests.put(cfg);
return results.take();
}
public Cache createClusteredCacheWaitingForNodesView(int expectedGroupSize) throws InterruptedException {
Cache cache = createClusteredCache();
TestingUtil.blockUntilViewReceived(cache, expectedGroupSize, 10000, false);
return cache;
}
public synchronized void start() {
if (started)
throw new IllegalStateException("was already started");
if (stopped)
throw new IllegalStateException("was already stopped");
started = true;
executor.execute(new Worker());
}
public synchronized void stop() {
if (stopped)
throw new IllegalStateException("was already stopped");
if (!started)
throw new IllegalStateException("was not started");
stopped = true;
executor.shutdownNow();
}
private class Worker implements Runnable {
@Override
public void run() {
while (true) {
try {
Configuration configuration = requests.take();
CacheContainer cacheContainer = TestCacheManagerFactory.createClusteredCacheManager(configuration);
Cache cache = cacheContainer.getCache();
results.put(cache);
} catch (InterruptedException e) {
return;
}
}
}
}
}