| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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.jsecurity.cache; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Default memory-only based {@link CacheManager CacheManager} implementation usable in production environments. |
| * <p/> |
| * This implementation does not offer any enterprise-level features such as cache coherency, optimistic locking, |
| * failover or other similar features. It relies on memory-based {@link java.util.Map Map} caches. For more |
| * enterprise features, consider using an {@link org.jsecurity.cache.ehcache.EhCacheManager EhCacheManager} or other |
| * similar implementation that wraps an enterprise-grade Caching solution. |
| * |
| * @author Les Hazlewood |
| * @since 1.0 |
| */ |
| public class DefaultCacheManager implements CacheManager { |
| |
| /** |
| * Retains all Cache objects maintained by this cache manager. |
| */ |
| private final Map<String, Cache> caches = new HashMap<String, Cache>(); |
| |
| public Cache getCache(String name) throws CacheException { |
| if (name == null) { |
| throw new CacheException("Cache name cannot be null."); |
| } |
| |
| Cache cache; |
| |
| synchronized (caches) { |
| cache = caches.get(name); |
| if (cache == null) { |
| cache = new SoftHashMapCache(name); |
| caches.put(name, cache); |
| } |
| } |
| |
| return cache; |
| } |
| } |