| /** |
| * 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.apache.wss4j.common.cache; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| |
| import org.apache.wss4j.common.util.Loader; |
| |
| /** |
| * An abstract factory to return a ReplayCache instance. It returns an EHCacheReplayCacheFactory |
| * if EH-Cache is available. Otherwise it returns a MemoryReplayCacheFactory. |
| */ |
| public abstract class ReplayCacheFactory { |
| |
| private static final org.slf4j.Logger LOG = |
| org.slf4j.LoggerFactory.getLogger(ReplayCacheFactory.class); |
| private static boolean ehCacheInstalled; |
| |
| static { |
| try { |
| Class<?> cacheManagerClass = Class.forName("net.sf.ehcache.CacheManager"); |
| if (cacheManagerClass != null) { |
| ehCacheInstalled = true; |
| } |
| } catch (Exception e) { |
| //ignore |
| LOG.debug(e.getMessage()); |
| } |
| } |
| |
| public static synchronized boolean isEhCacheInstalled() { |
| return ehCacheInstalled; |
| } |
| |
| public static ReplayCacheFactory newInstance() { |
| if (isEhCacheInstalled()) { |
| return new EHCacheReplayCacheFactory(); |
| } |
| |
| return new MemoryReplayCacheFactory(); |
| } |
| |
| public abstract ReplayCache newReplayCache(String key, Object configuration); |
| |
| protected URL getConfigFileURL(Object o) { |
| if (o instanceof String) { |
| try { |
| URL url = Loader.getResource((String)o); |
| if (url == null) { |
| url = new URL((String)o); |
| } |
| return url; |
| } catch (IOException e) { |
| // Do nothing |
| LOG.debug(e.getMessage()); |
| } |
| } else if (o instanceof URL) { |
| return (URL)o; |
| } |
| return null; |
| } |
| |
| } |