org.mkosem.impl.GuavaCache.java Source code

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

Source

package org.mkosem.impl;

import org.mkosem.ICache;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;

/*
 * 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 GuavaCache<K, V> implements ICache<K, V> {
    private final Cache<K, V> cache_;

    public GuavaCache(int capacity, int concurrencyLevel) {
        cache_ = CacheBuilder.newBuilder().concurrencyLevel(concurrencyLevel).maximumSize(capacity)
                .initialCapacity(capacity).build();
    }

    @Override
    public void destroy() {
        cache_.invalidateAll();
    }

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

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

    @Override
    public void put(K key, V value) {
        cache_.put(key, value);
    }
}