/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and individual contributors
* by the @authors tag. 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.richfaces.cache;
import static org.richfaces.application.configuration.ConfigurationServiceHelper.getIntConfigurationValue;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.text.MessageFormat;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.context.FacesContext;
import org.ajax4jsf.resource.util.URLToStreamHelper;
import org.jboss.cache.Cache;
import org.jboss.cache.DefaultCacheFactory;
import org.jboss.cache.Fqn;
import org.jboss.cache.config.Configuration;
import org.jboss.cache.config.EvictionAlgorithmConfig;
import org.jboss.cache.config.EvictionConfig;
import org.jboss.cache.config.EvictionRegionConfig;
import org.jboss.cache.eviction.EvictionAlgorithmConfigBase;
import org.jboss.cache.eviction.ExpirationAlgorithmConfig;
import org.richfaces.application.CoreConfiguration;
import org.richfaces.log.Logger;
import org.richfaces.log.RichfacesLogger;
/**
* @author Nick Belaevski
* @since 4.0
*/
public class JBossCacheCacheFactory implements CacheFactory {
private static final Logger LOG = RichfacesLogger.CACHE.getLogger();
private org.jboss.cache.CacheFactory<String, Object> cacheFactory;
public JBossCacheCacheFactory() {
super();
cacheFactory = new DefaultCacheFactory<String, Object>();
}
private void setupMaxSizeEviction(FacesContext facesContext, Cache<String, Object> cache) {
EvictionConfig evictionConfig = cache.getConfiguration().getEvictionConfig();
EvictionAlgorithmConfig evictionAlgorithmConfig = evictionConfig.getDefaultEvictionRegionConfig()
.getEvictionAlgorithmConfig();
if (evictionAlgorithmConfig instanceof EvictionAlgorithmConfigBase) {
EvictionAlgorithmConfigBase baseEvicitonConfig = (EvictionAlgorithmConfigBase) evictionAlgorithmConfig;
if (baseEvicitonConfig.getMaxNodes() <= 0) {
int maxCacheSize = getIntConfigurationValue(facesContext, CoreConfiguration.Items.resourcesCacheSize);
LOG.info(MessageFormat.format("Maximum cache size hasn''t been set, resetting to {0} max items", maxCacheSize));
baseEvicitonConfig.setMaxNodes(maxCacheSize);
}
}
}
public org.richfaces.cache.Cache createCache(FacesContext facesContext, String cacheName, Map<?, ?> env) {
// TODO - handle cache name
ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
Cache<String, Object> cache = null;
URL cacheConfigurationURL = null;
if (contextClassLoader != null) {
cacheConfigurationURL = contextClassLoader.getResource("jboss-cache.xml");
}
if (cacheConfigurationURL != null) {
InputStream stream = null;
try {
stream = URLToStreamHelper.urlToStream(cacheConfigurationURL);
cache = cacheFactory.createCache(stream);
setupMaxSizeEviction(facesContext, cache);
} catch (IOException e) {
throw new FacesException(e.getLocalizedMessage(), e);
} finally {
if (stream != null) {
try {
stream.close();
} catch (IOException e) {
LOG.debug(e.getMessage(), e);
}
}
}
} else {
Configuration configuration = new Configuration();
EvictionRegionConfig evictionRegionConfig = new EvictionRegionConfig(Fqn.root());
ExpirationAlgorithmConfig expirationAlgorithm = new ExpirationAlgorithmConfig();
int maxCacheSize = getIntConfigurationValue(facesContext, CoreConfiguration.Items.resourcesCacheSize);
expirationAlgorithm.setMaxNodes(maxCacheSize);
evictionRegionConfig.setEvictionAlgorithmConfig(expirationAlgorithm);
EvictionConfig evictionConfig = new EvictionConfig(evictionRegionConfig);
evictionConfig.setWakeupInterval(1000);
configuration.setEvictionConfig(evictionConfig);
cache = cacheFactory.createCache(configuration);
}
return new JBossCacheCache(cache);
}
public void destroy() {
cacheFactory = null;
}
}