/**
* Copyright 2003-2010 Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.ehcache.hibernate;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Properties;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.config.Configuration;
import net.sf.ehcache.config.ConfigurationFactory;
import org.hibernate.cache.CacheException;
import org.hibernate.cfg.Settings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A non-singleton EhCacheRegionFactory implementation.
*
* @author Chris Dennis
* @author Greg Luck
* @author Emmanuel Bernard
* @author Abhishek Sanoujam
*/
public class EhCacheRegionFactory extends AbstractEhcacheRegionFactory {
private static final Logger LOG = LoggerFactory.getLogger(EhCacheRegionFactory.class);
/**
* Creates a non-singleton EhCacheRegionFactory
*/
public EhCacheRegionFactory(Properties prop) {
super();
}
/**
* {@inheritDoc}
*/
public void start(Settings settings, Properties properties) throws CacheException {
this.settings = settings;
if (manager != null) {
LOG.warn("Attempt to restart an already started EhCacheRegionFactory. Use sessionFactory.close() " +
" between repeated calls to buildSessionFactory. Using previously created EhCacheRegionFactory." +
" If this behaviour is required, consider using SingletonEhCacheRegionFactory.");
return;
}
try {
String configurationResourceName = null;
if (properties != null) {
configurationResourceName = (String) properties.get(NET_SF_EHCACHE_CONFIGURATION_RESOURCE_NAME);
}
if (configurationResourceName == null || configurationResourceName.length() == 0) {
Configuration configuration = ConfigurationFactory.parseConfiguration();
manager = new CacheManager(configuration);
} else {
URL url;
try {
url = new URL(configurationResourceName);
} catch (MalformedURLException e) {
url = loadResource(configurationResourceName);
}
Configuration configuration = HibernateUtil.loadAndCorrectConfiguration(url);
manager = new CacheManager(configuration);
}
mbeanRegistrationHelper.registerMBean(manager, properties);
} catch (net.sf.ehcache.CacheException e) {
if (e.getMessage().startsWith("Cannot parseConfiguration CacheManager. Attempt to create a new instance of " +
"CacheManager using the diskStorePath")) {
throw new CacheException("Attempt to restart an already started EhCacheRegionFactory. " +
"Use sessionFactory.close() between repeated calls to buildSessionFactory. " +
"Consider using SingletonEhCacheRegionFactory. Error from ehcache was: " + e.getMessage());
} else {
throw new CacheException(e);
}
}
}
/**
* {@inheritDoc}
*/
public void stop() {
try {
if (manager != null) {
mbeanRegistrationHelper.unregisterMBean();
manager.shutdown();
manager = null;
}
} catch (net.sf.ehcache.CacheException e) {
throw new CacheException(e);
}
}
}