001    /*
002     * Copyright 2001-2004 The Apache Software Foundation
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *     http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.apache.commons.cache;
017    
018    import java.util.HashMap;
019    import java.io.File;
020    
021    /**
022     * @version $Id: CacheSingleton.java 155435 2005-02-26 13:17:27Z dirkv $
023     * @author Rodney Waldhoff
024     */
025    public class CacheSingleton {
026       protected static HashMap _caches = new HashMap();
027    
028       public synchronized static Cache getCache(Object name) {
029          if(null == name) { name = "default"; }
030          return (Cache)(_caches.get(name));
031       }
032    
033       public synchronized static boolean hasCache(Object name) {
034          return _caches.containsKey(name);
035       }
036    
037       public synchronized static void putCache(Object name, Cache cache) {
038          _caches.put(name,cache);
039       }
040    }