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/**
 *  Copyright (c) 1997-2013, www.tinygroup.org ([email protected]).
 *
 *  Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
 *
 *  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 org.tinygroup.cache.jcs;

import org.apache.commons.jcs.engine.control.CompositeCacheManager;
import org.tinygroup.cache.AbstractCacheManager;
import org.tinygroup.cache.Cache;
import org.tinygroup.cache.exception.CacheException;

/**
 * 
 * @author renhui
 * 
 */
public class JcsCacheManager extends AbstractCacheManager {

	private CompositeCacheManager manager;

	private JcsCacheManager() {
		this(CompositeCacheManager.getInstance());
	}

	private JcsCacheManager(CompositeCacheManager manager) {
		super();
		this.manager = manager;
	}

	public static JcsCacheManager getInstance() {
		return new JcsCacheManager();
	}

	public static JcsCacheManager getInstance(CompositeCacheManager manager) {
		return new JcsCacheManager(manager);
	}

	public void shutDown() {
		manager.shutDown();
	}

	@Override
	protected Cache newCache(String region) {
		try {
			JcsCache jcsCache = new JcsCache();
			jcsCache.init(region);
			return jcsCache;
		} catch (Exception e) {
			throw new CacheException(e);
		}

	}

	@Override
	protected void internalRemoveCache(Cache cache) {
		manager.freeCache(cacheMap.inverse().get(cache));
	}

}