/*
* #%L
* BroadleafCommerce Common Libraries
* %%
* Copyright (C) 2009 - 2013 Broadleaf Commerce
* %%
* Licensed 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.
* #L%
*/
package org.broadleafcommerce.common.cache.engine;
import net.sf.ehcache.CacheException;
import net.sf.ehcache.Ehcache;
import net.sf.ehcache.Element;
import net.sf.ehcache.event.CacheEventListener;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.cache.spi.CacheKey;
import java.io.Serializable;
import java.lang.reflect.Method;
import java.util.Hashtable;
import java.util.Map;
/**
*
* @author jfischer
*
*/
@Deprecated
public class HydratedCacheManagerImpl implements CacheEventListener, HydratedCacheManager, HydratedAnnotationManager {
private static final Log LOG = LogFactory.getLog(HydratedCacheManagerImpl.class);
private static final HydratedCacheManagerImpl MANAGER = new HydratedCacheManagerImpl();
public static HydratedCacheManagerImpl getInstance() {
return MANAGER;
}
private HydratedCacheManagerImpl() {}
private Map<String, HydratedCache> hydratedCacheContainer = new Hashtable<String, HydratedCache>(100);
private Map<String, HydrationDescriptor> hydrationDescriptors = new Hashtable<String, HydrationDescriptor>(100);
public void addHydratedCache(final HydratedCache cache) {
hydratedCacheContainer.put(cache.getCacheRegion() + "_" + cache.getCacheName(), cache);
}
public HydratedCache removeHydratedCache(final String cacheRegion, final String cacheName) {
return hydratedCacheContainer.remove(cacheRegion + "_" + cacheName);
}
public HydratedCache getHydratedCache(final String cacheRegion, final String cacheName) {
if (!containsCache(cacheRegion, cacheName)) {
HydratedCache cache = new HydratedCache(cacheRegion, cacheName);
addHydratedCache(cache);
}
return hydratedCacheContainer.get(cacheRegion + "_" + cacheName);
}
public boolean containsCache(String cacheRegion, String cacheName) {
return hydratedCacheContainer.containsKey(cacheRegion + "_" + cacheName);
}
public HydrationDescriptor getHydrationDescriptor(Object entity) {
if (hydrationDescriptors.containsKey(entity.getClass().getName())) {
return hydrationDescriptors.get(entity.getClass().getName());
}
HydrationDescriptor descriptor = new HydrationDescriptor();
Class<?> topEntityClass = getTopEntityClass(entity);
HydrationScanner scanner = new HydrationScanner(topEntityClass, entity.getClass());
scanner.init();
descriptor.setHydratedMutators(scanner.getCacheMutators());
Map<String, Method[]> mutators = scanner.getIdMutators();
if (mutators.size() != 1) {
throw new RuntimeException("Broadleaf Commerce Hydrated Cache currently only supports entities with a single @Id annotation.");
}
Method[] singleMutators = mutators.values().iterator().next();
descriptor.setIdMutators(singleMutators);
String cacheRegion = scanner.getCacheRegion();
if (cacheRegion == null || "".equals(cacheRegion)) {
cacheRegion = topEntityClass.getName();
}
descriptor.setCacheRegion(cacheRegion);
hydrationDescriptors.put(entity.getClass().getName(), descriptor);
return descriptor;
}
public Class<?> getTopEntityClass(Object entity) {
Class<?> myClass = entity.getClass();
Class<?> superClass = entity.getClass().getSuperclass();
while (superClass != null && superClass.getName().startsWith("org.broadleaf")) {
myClass = superClass;
superClass = superClass.getSuperclass();
}
return myClass;
}
public Object getHydratedCacheElementItem(String cacheRegion, String cacheName, Serializable elementKey, String elementItemName) {
Object response = null;
HydratedCache hydratedCache = getHydratedCache(cacheRegion, cacheName);
HydratedCacheElement element = hydratedCache.getCacheElement(cacheRegion, cacheName, elementKey);
if (element != null) {
response = element.getCacheElementItem(elementItemName, elementKey);
}
return response;
}
public void addHydratedCacheElementItem(String cacheRegion, String cacheName, Serializable elementKey, String elementItemName, Object elementValue) {
HydratedCache hydratedCache = getHydratedCache(cacheRegion, cacheName);
HydratedCacheElement element = hydratedCache.getCacheElement(cacheRegion, cacheName, elementKey);
if (element == null) {
element = new HydratedCacheElement();
hydratedCache.addCacheElement(cacheRegion, cacheName, elementKey, element);
}
element.putCacheElementItem(elementItemName, elementKey, elementValue);
}
public void dispose() {
if (LOG.isInfoEnabled()) {
LOG.info("Disposing of all hydrated cache members");
}
hydratedCacheContainer.clear();
}
private void removeCache(String cacheRegion, Serializable key) {
String cacheName = cacheRegion;
if (key instanceof CacheKey) {
cacheName = ((CacheKey) key).getEntityOrRoleName();
key = ((CacheKey) key).getKey();
}
if (containsCache(cacheRegion, cacheName)) {
HydratedCache cache = hydratedCacheContainer.get(cacheRegion + "_" + cacheName);
String myKey = cacheRegion + "_" + cacheName + "_" + key;
if (cache.containsKey(myKey)) {
if (LOG.isInfoEnabled()) {
LOG.info("Clearing hydrated cache for cache name: " + cacheRegion + "_" + cacheName + "_" + key);
}
cache.removeCacheElement(cacheRegion, cacheName, key);
}
}
}
private void removeAll(String cacheName) {
if (hydratedCacheContainer.containsKey(cacheName)) {
if (LOG.isInfoEnabled()) {
LOG.info("Clearing all hydrated caches for cache name: " + cacheName);
}
hydratedCacheContainer.remove(cacheName);
}
}
public void notifyElementEvicted(Ehcache arg0, Element arg1) {
removeCache(arg0.getName(), arg1.getKey());
}
public void notifyElementExpired(Ehcache arg0, Element arg1) {
removeCache(arg0.getName(), arg1.getKey());
}
public void notifyElementPut(Ehcache arg0, Element arg1) throws CacheException {
//do nothing
}
public void notifyElementRemoved(Ehcache arg0, Element arg1) throws CacheException {
removeCache(arg0.getName(), arg1.getKey());
}
public void notifyElementUpdated(Ehcache arg0, Element arg1) throws CacheException {
removeCache(arg0.getName(), arg1.getKey());
}
public void notifyRemoveAll(Ehcache arg0) {
removeAll(arg0.getName());
}
@Override
public Object clone() throws CloneNotSupportedException {
return this;
}
}