001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.commons.jcs.jcache.cdi;
020
021import java.io.Serializable;
022
023import javax.annotation.Priority;
024import javax.cache.Cache;
025import javax.cache.annotation.CacheKeyInvocationContext;
026import javax.cache.annotation.CacheRemove;
027import javax.cache.annotation.CacheResolver;
028import javax.cache.annotation.CacheResolverFactory;
029import javax.cache.annotation.GeneratedCacheKey;
030import javax.inject.Inject;
031import javax.interceptor.AroundInvoke;
032import javax.interceptor.Interceptor;
033import javax.interceptor.InvocationContext;
034
035@CacheRemove
036@Interceptor
037@Priority(/*LIBRARY_BEFORE*/1000)
038public class CacheRemoveInterceptor implements Serializable
039{
040    @Inject
041    private CDIJCacheHelper helper;
042
043    @AroundInvoke
044    public Object cache(final InvocationContext ic) throws Throwable
045    {
046        final CDIJCacheHelper.MethodMeta methodMeta = helper.findMeta(ic);
047
048        final String cacheName = methodMeta.getCacheRemoveCacheName();
049
050        final CacheResolverFactory cacheResolverFactory = methodMeta.getCacheRemoveResolverFactory();
051        final CacheKeyInvocationContext<CacheRemove> context = new CacheKeyInvocationContextImpl<CacheRemove>(
052                ic, methodMeta.getCacheRemove(), cacheName, methodMeta);
053        final CacheResolver cacheResolver = cacheResolverFactory.getCacheResolver(context);
054        final Cache<Object, Object> cache = cacheResolver.resolveCache(context);
055
056        final GeneratedCacheKey cacheKey = methodMeta.getCacheRemoveKeyGenerator().generateCacheKey(context);
057        final CacheRemove cacheRemove = methodMeta.getCacheRemove();
058        final boolean afterInvocation = methodMeta.isCacheRemoveAfter();
059
060        if (!afterInvocation)
061        {
062            cache.remove(cacheKey);
063        }
064
065        final Object result;
066        try
067        {
068            result = ic.proceed();
069        }
070        catch (final Throwable t)
071        {
072            if (afterInvocation)
073            {
074                if (helper.isIncluded(t.getClass(), cacheRemove.evictFor(), cacheRemove.noEvictFor()))
075                {
076                    cache.remove(cacheKey);
077                }
078            }
079
080            throw t;
081        }
082
083        if (afterInvocation)
084        {
085            cache.remove(cacheKey);
086        }
087
088        return result;
089    }
090}