/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2007, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.test.util;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.hibernate.cache.RegionFactory;
import org.jboss.cache.Cache;
import org.slf4j.Logger;
/**
* Support class for tracking and cleaning up objects used in tests.
*
* @author <a href="brian.stansberry@jboss.com">Brian Stansberry</a>
* @version $Revision: 1 $
*/
public class CacheTestSupport {
private static final String PREFER_IPV4STACK = "java.net.preferIPv4Stack";
private Logger log;
private Set<Cache> caches = new HashSet();
private Set<RegionFactory> factories = new HashSet();
private Exception exception;
private String preferIPv4Stack;
public CacheTestSupport(Logger log) {
this.log = log;
}
public void registerCache(Cache cache) {
caches.add(cache);
}
public void registerFactory(RegionFactory factory) {
factories.add(factory);
}
public void unregisterCache(Cache cache) {
caches.remove(cache);
}
public void unregisterFactory(RegionFactory factory) {
factories.remove(factory);
}
public void setUp() throws Exception {
// Try to ensure we use IPv4; otherwise cluster formation is very slow
preferIPv4Stack = System.getProperty(PREFER_IPV4STACK);
System.setProperty(PREFER_IPV4STACK, "true");
cleanUp();
throwStoredException();
}
public void tearDown() throws Exception {
if (preferIPv4Stack == null)
System.clearProperty(PREFER_IPV4STACK);
else
System.setProperty(PREFER_IPV4STACK, preferIPv4Stack);
cleanUp();
throwStoredException();
}
public void avoidConcurrentFlush() {
// JG 2.6.1 has a problem where calling flush more than once too quickly
// can result in several second delays
sleep(100);
}
private void sleep(long ms) {
try {
Thread.sleep(ms);
}
catch (InterruptedException e) {
log.warn("Interrupted during sleep", e);
}
}
private void cleanUp() {
for (Iterator it = factories.iterator(); it.hasNext(); ) {
try {
((RegionFactory) it.next()).stop();
}
catch (Exception e) {
storeException(e);
}
finally {
it.remove();
}
}
factories.clear();
for (Iterator it = caches.iterator(); it.hasNext(); ) {
try {
Cache cache = (Cache) it.next();
cache.stop();
cache.destroy();
}
catch (Exception e) {
storeException(e);
}
finally {
it.remove();
}
avoidConcurrentFlush();
}
caches.clear();
}
private void storeException(Exception e) {
if (this.exception == null) {
this.exception = e;
}
}
private void throwStoredException() throws Exception {
if (exception != null) {
Exception toThrow = exception;
exception = null;
throw toThrow;
}
}
}