net.jawr.web.cache.CacheManagerFactory Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jawr-core Show documentation
Show all versions of jawr-core Show documentation
Javascript/CSS bundling and compressing tool for java web apps.
By using jawr resources are automatically bundled together and optionally minified and gzipped.
Jawr provides tag libraries to reference a generated bundle either by id or by using the name of any of its members.
/**
* Copyright 2011-2012 Ibrahim Chaehoi
*
* 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.
*/
package net.jawr.web.cache;
import net.jawr.web.config.JawrConfig;
import net.jawr.web.resource.bundle.factory.util.ClassLoaderResourceUtils;
/**
* The cache manager factory
*
* @author Ibrahim Chaehoi
*/
public class CacheManagerFactory {
/**
* Retrieves the cache manager for a resource type
* @param config the jawr config
* @param resourceType the resource type
* @return the cache manager for a resource type
*/
public static JawrCacheManager getCacheManager(JawrConfig config, String resourceType){
String cacheMgrAttributeName = "JAWR."+resourceType.toUpperCase()+".CACHE.MANAGER";
JawrCacheManager cacheManager = (JawrCacheManager) config.getContext().getAttribute(cacheMgrAttributeName);
if(cacheManager == null){
String cacheManagerClass = config.getProperty("jawr.cache.manager", BasicCacheManager.class.getName());
cacheManager = (JawrCacheManager) ClassLoaderResourceUtils.buildObjectInstance(cacheManagerClass, new Object[]{config});
config.getContext().setAttribute(cacheMgrAttributeName, cacheManager);
}
return cacheManager;
}
/**
* Resets the cache manager for a resource type
* @param config the jawr config
* @param resourceType the resource type
* @return the cache manager for a resource type
*/
public static synchronized JawrCacheManager resetCacheManager(JawrConfig config, String resourceType){
String cacheMgrAttributeName = "JAWR."+resourceType.toUpperCase()+".CACHE.MANAGER";
JawrCacheManager cacheManager = (JawrCacheManager) config.getContext().getAttribute(cacheMgrAttributeName);
if(cacheManager != null){
cacheManager.clear();
config.getContext().removeAttribute(cacheMgrAttributeName);
}
return getCacheManager(config, resourceType);
}
}