trunk/reference-impl/src/main/java/net/sf/taverna/t2/reference/impl/SimpleCacheProviderImpl.java

/*******************************************************************************
 * Copyright (C) 2007 The University of Manchester   
 * 
 *  Modifications to the initial code base are copyright of their
 *  respective authors, or their employers as appropriate.
 * 
 *  This program 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 program 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 program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 ******************************************************************************/
package net.sf.taverna.t2.reference.impl;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import net.sf.taverna.t2.reference.Identified;
import net.sf.taverna.t2.reference.ReferenceServiceCacheProvider;
import net.sf.taverna.t2.reference.T2Reference;

/**
 * Completely naive cache provider that just stores everything in a map. This
 * <em>will</em> run out of memory as it makes no attempt to evict old items,
 * it's really just here as a test!
 * 
 * @author Tom Oinn
 * 
 */
public class SimpleCacheProviderImpl implements ReferenceServiceCacheProvider {

	private final Log log = LogFactory.getLog(SimpleCacheProviderImpl.class);

	private Map<T2Reference, Identified> cache = new HashMap<T2Reference, Identified>();

	public Identified get(T2Reference id) {
		log.debug("Get " + id.toString() + " (" + cache.containsKey(id) + ")");
		return cache.get(id);
	}

	public void put(Identified i) {
		log.debug("Put " + i.getId().toString());
		cache.put(i.getId(), i);
	}

}