com.icfcc.cache.ehcache.EhCacheCacheManager.java Source code

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Here is the source code for com.icfcc.cache.ehcache.EhCacheCacheManager.java

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/*
 * Copyright 2002-2011 the original author or authors.
 *
 * 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 com.icfcc.cache.ehcache;

import com.icfcc.cache.Cache;
import com.icfcc.cache.support.AbstractCacheManager;
import net.sf.ehcache.Ehcache;
import net.sf.ehcache.Status;
import org.springframework.util.Assert;

import java.util.Collection;
import java.util.LinkedHashSet;

/**
 * CacheManager backed by an EhCache {@link net.sf.ehcache.CacheManager}.
 *
 * @author Costin Leau
 * @author Juergen Hoeller
 * @since 3.1
 */
public class EhCacheCacheManager extends AbstractCacheManager {

    private net.sf.ehcache.CacheManager cacheManager;

    /**
     * Set the backing EhCache {@link net.sf.ehcache.CacheManager}.
     */
    public void setCacheManager(net.sf.ehcache.CacheManager cacheManager) {
        this.cacheManager = cacheManager;
    }

    @Override
    protected Collection<Cache> loadCaches() {
        Assert.notNull(this.cacheManager, "A backing EhCache CacheManager is required");
        Status status = this.cacheManager.getStatus();
        Assert.isTrue(Status.STATUS_ALIVE.equals(status),
                "An 'alive' EhCache CacheManager is required - current cache is " + status.toString());

        String[] names = this.cacheManager.getCacheNames();
        Collection<Cache> caches = new LinkedHashSet<Cache>(names.length);
        for (String name : names) {
            caches.add(new EhCacheCache(this.cacheManager.getEhcache(name)));
        }
        return caches;
    }

    @Override
    public Cache getCache(String name) {
        Cache cache = super.getCache(name);
        if (cache == null) {
            // check the EhCache cache again
            // (in case the cache was added at runtime)
            Ehcache ehcache = this.cacheManager.getEhcache(name);
            if (ehcache != null) {
                cache = new EhCacheCache(ehcache);
                addCache(cache);
            }
        }
        return cache;
    }

}