grails.plugin.cache.web.filter.simple.MemoryPageFragmentCachingFilter.java Source code

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Here is the source code for grails.plugin.cache.web.filter.simple.MemoryPageFragmentCachingFilter.java

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/* Copyright 2012-2013 SpringSource.
 *
 * 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 grails.plugin.cache.web.filter.simple;

import grails.plugin.cache.web.PageInfo;
import grails.plugin.cache.web.filter.PageFragmentCachingFilter;

import org.springframework.cache.Cache;
import org.springframework.cache.Cache.ValueWrapper;
import org.springframework.cache.concurrent.ConcurrentMapCacheManager;

/**
 * In-memory-based implementation of PageFragmentCachingFilter.
 *
 * @author Burt Beckwith
 */
public class MemoryPageFragmentCachingFilter extends PageFragmentCachingFilter {

    //   @Override
    //   protected void replaceCacheWithDecoratedCache(Cache cache, BlockingCache blocking) {
    //      // TODO
    //      getNativeCacheManager().replaceCacheWithDecoratedCache(
    //            (Ehcache)cache.getNativeCache(), (Ehcache)blocking.getNativeCache());
    //   }

    //   @SuppressWarnings({ "cast", "unchecked" })
    //   @Override
    //   protected BlockingCache createBlockingCache(Cache c) {
    //      ConcurrentMapCache cache = (ConcurrentMapCache)c;
    //      return new MemoryBlockingCache(cache.getName(),
    //            (ConcurrentMap<Object, Object>)cache.getNativeCache(), cache.isAllowNullValues());
    //   }

    @Override
    protected int getTimeToLive(ValueWrapper wrapper) {
        // not applicable
        return Integer.MAX_VALUE;
    }

    @Override
    protected ConcurrentMapCacheManager getNativeCacheManager() {
        return (ConcurrentMapCacheManager) super.getNativeCacheManager();
    }

    @Override
    protected void put(Cache cache, String key, PageInfo pageInfo, Integer timeToLiveSeconds) {
        // TTL isn't supported in the in-memory implementation
        cache.put(key, pageInfo);
    }
}