org.mkosem.impl.JCSCache.java Source code

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Here is the source code for org.mkosem.impl.JCSCache.java

Source

package org.mkosem.impl;

import java.io.Serializable;
import java.util.Properties;
import org.apache.commons.jcs.JCS;
import org.apache.commons.jcs.access.CacheAccess;
import org.apache.commons.jcs.access.exception.CacheException;
import org.apache.commons.jcs.engine.CompositeCacheAttributes;
import org.apache.commons.jcs.engine.control.CompositeCacheManager;
import org.mkosem.ICache;

/*
 * Copyright 2014 Matt Kosem
 * 
 * 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.
 */
public class JCSCache<K extends Serializable, V extends Serializable> implements ICache<K, V> {
    private CacheAccess<K, V> cache_ = null;

    public JCSCache(int capacity, int concurrencyLevel) throws CacheException {
        JCS.setConfigProperties(new Properties());
        CompositeCacheAttributes attributes = new CompositeCacheAttributes();
        attributes.setMaxObjects(capacity);
        attributes.setUseDisk(false);
        attributes.setUseRemote(false);
        attributes.setUseLateral(false);
        cache_ = JCS.getInstance("test", attributes);
    }

    @Override
    public void destroy() {
        try {
            cache_.clear();
            cache_.dispose();
            CompositeCacheManager.getInstance().shutDown();
        } catch (CacheException e) {
            e.printStackTrace();
        }
    }

    @Override
    public V get(K key) {
        return cache_.get(key);
    }

    @Override
    public String getDescription() {
        return "JCS";
    }

    @Override
    public void put(K key, V value) {
        try {
            cache_.put(key, value);
        } catch (CacheException e) {
            e.printStackTrace();
        }
    }
}