| /** |
| * 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.File; |
| import java.nio.file.Path; |
| import java.time.Instant; |
| |
| import org.apache.wss4j.common.ext.WSSecurityException; |
| import org.ehcache.Cache; |
| import org.ehcache.CacheManager; |
| import org.ehcache.CachePersistenceException; |
| import org.ehcache.PersistentCacheManager; |
| import org.ehcache.Status; |
| import org.ehcache.config.builders.CacheConfigurationBuilder; |
| import org.ehcache.config.builders.CacheManagerBuilder; |
| import org.ehcache.config.builders.ResourcePoolsBuilder; |
| import org.ehcache.config.units.EntryUnit; |
| import org.ehcache.config.units.MemoryUnit; |
| |
| /** |
| * An in-memory EHCache implementation of the ReplayCache interface, that overflows to disk. |
| * The default TTL is 60 minutes and the max TTL is 12 hours. |
| */ |
| public class EHCacheReplayCache implements ReplayCache { |
| |
| private static final org.slf4j.Logger LOG = |
| org.slf4j.LoggerFactory.getLogger(EHCacheReplayCache.class); |
| |
| private final Cache<String, EHCacheValue> cache; |
| private final CacheManager cacheManager; |
| private final String key; |
| private final Path diskstorePath; |
| private final boolean persistent; |
| |
| public EHCacheReplayCache(String key) throws WSSecurityException { |
| this(key, null); |
| } |
| |
| public EHCacheReplayCache(String key, Path diskstorePath) throws WSSecurityException { |
| this(key, diskstorePath, 50, 10000, false); |
| } |
| |
| public EHCacheReplayCache(String key, Path diskstorePath, long diskSize, long heapEntries, boolean persistent) |
| throws WSSecurityException { |
| this.key = key; |
| this.diskstorePath = diskstorePath; |
| this.persistent = persistent; |
| |
| // Do some sanity checking on the arguments |
| if (key == null || persistent && diskstorePath == null) { |
| throw new NullPointerException(); |
| } |
| if (diskstorePath != null && (diskSize < 5 || diskSize > 10000)) { |
| throw new IllegalArgumentException("The diskSize parameter must be between 5 and 10000 (megabytes)"); |
| } |
| if (heapEntries < 100) { |
| throw new IllegalArgumentException("The heapEntries parameter must be greater than 100 (entries)"); |
| } |
| |
| try { |
| ResourcePoolsBuilder resourcePoolsBuilder = ResourcePoolsBuilder.newResourcePoolsBuilder() |
| .heap(heapEntries, EntryUnit.ENTRIES); |
| if (diskstorePath != null) { |
| resourcePoolsBuilder = resourcePoolsBuilder.disk(diskSize, MemoryUnit.MB, persistent); |
| } |
| |
| CacheConfigurationBuilder<String, EHCacheValue> configurationBuilder = |
| CacheConfigurationBuilder.newCacheConfigurationBuilder( |
| String.class, EHCacheValue.class, resourcePoolsBuilder) |
| .withExpiry(new EHCacheExpiry()); |
| |
| if (diskstorePath != null) { |
| cacheManager = CacheManagerBuilder.newCacheManagerBuilder() |
| .with(CacheManagerBuilder.persistence(diskstorePath.toFile())) |
| .withCache(key, configurationBuilder) |
| .build(); |
| } else { |
| cacheManager = CacheManagerBuilder.newCacheManagerBuilder() |
| .withCache(key, configurationBuilder) |
| .build(); |
| } |
| |
| cacheManager.init(); |
| cache = cacheManager.getCache(key, String.class, EHCacheValue.class); |
| } catch (Exception ex) { |
| LOG.error("Error configuring EHCacheReplayCache: {}", ex.getMessage()); |
| throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, ex, "replayCacheError"); |
| } |
| } |
| |
| /** |
| * Add the given identifier to the cache. It will be cached for a default amount of time. |
| * @param identifier The identifier to be added |
| */ |
| public void add(String identifier) { |
| add(identifier, null); |
| } |
| |
| /** |
| * Add the given identifier to the cache to be cached for the given time |
| * @param identifier The identifier to be added |
| * @param expiry A custom expiry time for the identifier. Can be null in which case, the default expiry is used. |
| */ |
| public void add(String identifier, Instant expiry) { |
| if (identifier == null || "".equals(identifier)) { |
| return; |
| } |
| |
| cache.put(identifier, new EHCacheValue(identifier, expiry)); |
| } |
| |
| /** |
| * Return true if the given identifier is contained in the cache |
| * @param identifier The identifier to check |
| */ |
| public boolean contains(String identifier) { |
| if (cache == null) { |
| return false; |
| } |
| EHCacheValue element = cache.get(identifier); |
| return element != null; |
| } |
| |
| // Only exposed for testing |
| EHCacheValue get(String identifier) { |
| return cache.get(identifier); |
| } |
| |
| @Override |
| public synchronized void close() { |
| if (cacheManager.getStatus() == Status.AVAILABLE) { |
| cacheManager.removeCache(key); |
| |
| cacheManager.close(); |
| |
| if (!persistent && cacheManager instanceof PersistentCacheManager) { |
| try { |
| ((PersistentCacheManager) cacheManager).destroy(); |
| } catch (CachePersistenceException e) { |
| LOG.debug("Error in shutting down persistent cache", e); |
| } |
| |
| // As we're not using a persistent disk store, just delete it - it should be empty after calling |
| // destroy above |
| if (diskstorePath != null) { |
| File file = diskstorePath.toFile(); |
| if (file.exists() && file.canWrite()) { |
| file.delete(); |
| } |
| } |
| } |
| } |
| } |
| |
| public void initComplete() { |
| } |
| public void preShutdown() { |
| close(); |
| } |
| public void postShutdown() { |
| close(); |
| } |
| |
| } |