/*
* 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.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import javax.faces.FacesException;
import javax.faces.context.FacesContext;
import org.ajax4jsf.resource.util.URLToStreamHelper;
import org.richfaces.application.CoreConfiguration;
import org.richfaces.log.Logger;
import org.richfaces.log.RichfacesLogger;
import com.opensymphony.oscache.base.AbstractCacheAdministrator;
import com.opensymphony.oscache.general.GeneralCacheAdministrator;
/**
* @author Nick - mailto:nbelaevski@exadel.com created 01.05.2007
*/
public class OSCacheCacheFactory implements CacheFactory {
private static final Logger LOG = RichfacesLogger.CACHE.getLogger();
private List<GeneralCacheAdministrator> cacheAdministrators = new ArrayList<GeneralCacheAdministrator>(1);
public OSCacheCacheFactory() throws ClassNotFoundException {
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
if (classLoader == null) {
classLoader = OSCacheCacheFactory.class.getClassLoader();
}
// try load cache class to check its presence in classpath
Class.forName(GeneralCacheAdministrator.class.getName(), false, classLoader);
}
private static Properties loadProperties() throws IOException {
Properties properties = new Properties();
URL resource = OSCacheCache.class.getResource("oscache.properties");
if (resource != null) {
InputStream stream = URLToStreamHelper.urlToStream(resource);
try {
properties.load(stream);
} finally {
try {
stream.close();
} catch (IOException e) {
LOG.debug(e.getMessage(), e);
}
}
}
return properties;
}
public Cache createCache(FacesContext facesContext, String cacheName, Map<?, ?> env) {
// TODO - handle cache name
Properties cacheProperties = new Properties();
try {
cacheProperties.putAll(loadProperties());
} catch (IOException e) {
throw new FacesException(e.getMessage(), e);
}
try {
cacheProperties.putAll(loadProperties());
} catch (IOException e) {
throw new FacesException(e.getMessage(), e);
}
cacheProperties.putAll(env);
LOG.info("Creating OSCache cache instance using parameters: " + cacheProperties);
String property = cacheProperties.getProperty(AbstractCacheAdministrator.CACHE_CAPACITY_KEY);
if (property == null) {
int maxCacheSize = getIntConfigurationValue(facesContext, CoreConfiguration.Items.resourcesCacheSize);
LOG.info(MessageFormat.format("Maximum cache size hasn''t been set, resetting to {0} max items", maxCacheSize));
cacheProperties.put(AbstractCacheAdministrator.CACHE_CAPACITY_KEY, Integer.toString(maxCacheSize));
}
GeneralCacheAdministrator cacheAdministrator = new GeneralCacheAdministrator(cacheProperties);
cacheAdministrators.add(cacheAdministrator);
return new OSCacheCache(cacheAdministrator.getCache());
}
public void destroy() {
for (GeneralCacheAdministrator cacheAdministrator : cacheAdministrators) {
cacheAdministrator.destroy();
}
cacheAdministrators = null;
}
}