/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* 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.jboss.kernel.plugins.metadata.basic;
import java.security.AccessController;
import java.security.PrivilegedAction;
import org.jboss.metadata.plugins.cache.CacheFactory;
import org.jboss.metadata.plugins.cache.CachePolicyCacheFactory;
import org.jboss.metadata.plugins.cache.CachePolicyFactory;
/**
* PolicyCachingBasicKernelMetaDataRepository.
*
* @author <a href="ales.justin@jboss.com">Ales Justin</a>
*/
public abstract class PolicyCachingBasicKernelMetaDataRepository extends CachingBasicKernelMetaDataRepository
{
protected CacheFactory createCacheFactory()
{
return new CachePolicyCacheFactory(createCachePolicyFactory());
}
/**
* Create cache policy factory.
*
* @return the cache policy factory
*/
protected abstract CachePolicyFactory createCachePolicyFactory();
/**
* Read system property.
*
* @param key the property key
* @param defaultValue the default value
* @return system property or default value
*/
protected static String readSystemProperty(final String key, final String defaultValue)
{
SecurityManager sm = System.getSecurityManager();
if (sm == null)
return System.getProperty(key, defaultValue);
else
return AccessController.doPrivileged(new PrivilegedAction<String>()
{
public String run()
{
return System.getProperty(key, defaultValue);
}
});
}
/**
* Parse integer.
*
* @param value the string int value
* @return integer value of null
*/
protected static Integer parseInteger(String value)
{
if (value == null)
return null;
return Integer.parseInt(value);
}
}