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

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Here is the source code for com.icfcc.cache.ehcache.EhCacheCache.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 net.sf.ehcache.Ehcache;
import net.sf.ehcache.Element;
import net.sf.ehcache.Status;
import com.icfcc.cache.Cache;
import com.icfcc.cache.support.SimpleValueWrapper;
import org.springframework.util.Assert;

/**
 * {@link Cache} implementation on top of an {@link Ehcache} instance.
 *
 * @author Costin Leau
 * @author Juergen Hoeller
 * @since 3.1
 */
public class EhCacheCache implements Cache {

    private final Ehcache cache;

    /**
     * Create an {@link EhCacheCache} instance.
     * @param ehcache backing Ehcache instance
     */
    public EhCacheCache(Ehcache ehcache) {
        Assert.notNull(ehcache, "Ehcache must not be null");
        Status status = ehcache.getStatus();
        Assert.isTrue(Status.STATUS_ALIVE.equals(status),
                "An 'alive' Ehcache is required - current cache is " + status.toString());
        this.cache = ehcache;
    }

    public String getName() {
        return this.cache.getName();
    }

    public Ehcache getNativeCache() {
        return this.cache;
    }

    public void clear() {
        this.cache.removeAll();
    }

    public ValueWrapper get(Object key) {
        Element element = this.cache.get(key);
        return (element != null ? new SimpleValueWrapper(element.getObjectValue()) : null);
    }

    public void put(Object key, Object value) {
        this.cache.put(new Element(key, value));
    }

    public void evict(Object key) {
        this.cache.remove(key);
    }

}