org.jsr107.ri.annotations.DefaultCacheResolverFactory Maven / Gradle / Ivy
/**
* Copyright 2011-2013 Terracotta, Inc.
* Copyright 2011-2013 Oracle America Incorporated
*
* 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 org.jsr107.ri.annotations;
import javax.cache.Cache;
import javax.cache.CacheManager;
import javax.cache.Caching;
import javax.cache.annotation.CacheMethodDetails;
import javax.cache.annotation.CacheResolver;
import javax.cache.annotation.CacheResolverFactory;
import javax.cache.annotation.CacheResult;
import javax.cache.configuration.MutableConfiguration;
import javax.cache.spi.CachingProvider;
import java.lang.annotation.Annotation;
import java.util.logging.Logger;
/**
* Default {@link CacheResolverFactory} that uses the default {@link CacheManager} and finds the {@link Cache}
* using {@link CacheManager#getCache(String)}. Returns a {@link DefaultCacheResolver} that wraps the found
* {@link Cache}
*
* @author Eric Dalquist
* @author Rick Hightower
* @since 1.0
*/
public class DefaultCacheResolverFactory implements CacheResolverFactory {
private final Logger logger = Logger.getLogger(this.getClass().getName());
private final CacheManager cacheManager;
/**
* Constructs the resolver
*
* @param cacheManager the cache manager to use
*/
public DefaultCacheResolverFactory(CacheManager cacheManager) {
this.cacheManager = cacheManager;
}
/**
* Constructs the resolver
*/
public DefaultCacheResolverFactory() {
CachingProvider provider = Caching.getCachingProvider();
this.cacheManager = provider.getCacheManager(provider.getDefaultURI(), provider.getDefaultClassLoader());
}
/* (non-Javadoc)
* @see javax.cache.annotation.CacheResolverFactory#getCacheResolver(javax.cache.annotation.CacheMethodDetails)
*/
@Override
public CacheResolver getCacheResolver(CacheMethodDetails cacheMethodDetails) {
final String cacheName = cacheMethodDetails.getCacheName();
Cache cache = this.cacheManager.getCache(cacheName);
if (cache == null) {
logger.warning("No Cache named '" + cacheName + "' was found in the CacheManager, a default cache will be created.");
cacheManager.createCache(cacheName, new MutableConfiguration());
cache = cacheManager.getCache(cacheName);
}
return new DefaultCacheResolver(cache);
}
@Override
public CacheResolver getExceptionCacheResolver(CacheMethodDetails cacheMethodDetails) {
final CacheResult cacheResultAnnotation = cacheMethodDetails.getCacheAnnotation();
final String exceptionCacheName = cacheResultAnnotation.exceptionCacheName();
if (exceptionCacheName == null || exceptionCacheName.trim().length() == 0) {
throw new IllegalArgumentException("Can only be called when CacheResult.exceptionCacheName() is specified");
}
Cache cache = cacheManager.getCache(exceptionCacheName);
if (cache == null) {
logger.warning("No Cache named '" + exceptionCacheName +
"' was found in the CacheManager, a default cache will be created.");
cacheManager.createCache(exceptionCacheName, new MutableConfiguration());
cache = cacheManager.getCache(exceptionCacheName);
}
return new DefaultCacheResolver(cache);
}
}