BaseCacheManager.java

/*
    This file is part of Cyclos (www.cyclos.org).
    A project of the Social Trade Organisation (www.socialtrade.org).

    Cyclos is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    Cyclos 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Cyclos; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 */
package nl.strohalm.cyclos.utils.cache;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.springframework.beans.factory.DisposableBean;

/**
 * Base implementation for {@link CacheManager}
 * 
 * @author luis
 */
public abstract class BaseCacheManager implements CacheManager, DisposableBean {

    protected final Map<String, Cache> caches = new ConcurrentHashMap<String, Cache>();

    @Override
    public void destroy() throws Exception {
        for (Cache cache : caches.values()) {
            try {
                cache.shutdown();
            } catch (Exception e) {
                // Ok - ignore and pass to the next one
            }
        }
    }

    @Override
    public final synchronized Cache getCache(final String name) {
        Cache cache = caches.get(name);
        if (cache == null) {
            cache = createCache(name);
            caches.put(name, cache);
        }
        return cache;
    }

    /**
     * Should be implemented to create a cache with the given name
     */
    protected abstract Cache createCache(String name);

}