/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.cdi.interceptor;
import org.infinispan.Cache;
import org.infinispan.cdi.interceptor.context.CacheKeyInvocationContextFactory;
import org.infinispan.cdi.util.logging.Log;
import org.infinispan.util.logging.LogFactory;
import javax.cache.annotation.CacheKey;
import javax.cache.annotation.CacheKeyInvocationContext;
import javax.cache.annotation.CacheRemoveAll;
import javax.inject.Inject;
import javax.interceptor.AroundInvoke;
import javax.interceptor.Interceptor;
import javax.interceptor.InvocationContext;
import java.io.Serializable;
/**
* <p>{@link CacheRemoveAll} interceptor implementation. This interceptor uses the following algorithm describes in
* JSR-107.</p>
*
* <p>The interceptor that intercepts method annotated with {@code @CacheRemoveAll} must do the following, remove all
* entries associated with the cache. The removeAll occurs after the method body is executed. This can be overridden by
* specifying a afterInvocation attribute value of false. If afterInvocation is true and the annotated method throws an
* exception, the removeAll will not happen.</p>
*
* @author Kevin Pollet <kevin.pollet@serli.com> (C) 2011 SERLI
*/
@Interceptor
public class CacheRemoveAllInterceptor implements Serializable {
private static final long serialVersionUID = -8763819640664021763L;
private static final Log log = LogFactory.getLog(CacheRemoveAllInterceptor.class, Log.class);
private final CacheResolver cacheResolver;
private final CacheKeyInvocationContextFactory contextFactory;
@Inject
public CacheRemoveAllInterceptor(CacheResolver cacheResolver, CacheKeyInvocationContextFactory contextFactory) {
this.cacheResolver = cacheResolver;
this.contextFactory = contextFactory;
}
@AroundInvoke
public Object cacheRemoveAll(InvocationContext invocationContext) throws Exception {
if (log.isTraceEnabled()) {
log.tracef("Interception of method named '%s'", invocationContext.getMethod().getName());
}
final CacheKeyInvocationContext<CacheRemoveAll> cacheKeyInvocationContext = contextFactory.getCacheKeyInvocationContext(invocationContext);
final CacheRemoveAll cacheRemoveAll = cacheKeyInvocationContext.getCacheAnnotation();
final Cache<CacheKey, Object> cache = cacheResolver.resolveCache(cacheKeyInvocationContext);
if (!cacheRemoveAll.afterInvocation()) {
cache.clear();
if (log.isTraceEnabled()) {
log.tracef("Clear cache '%s' before method invocation", cache.getName());
}
}
final Object result = invocationContext.proceed();
if (cacheRemoveAll.afterInvocation()) {
cache.clear();
if (log.isTraceEnabled()) {
log.tracef("Clear cache '%s' after method invocation", cache.getName());
}
}
return result;
}
}