gradle-master/subprojects/persistent-cache/src/main/java/org/gradle/cache/internal/CacheAccessSerializer.java
/*
 * Copyright 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 org.gradle.cache.internal;

import org.gradle.cache.Cache;
import org.gradle.internal.concurrent.Synchronizer;

import java.util.function.Function;

public class CacheAccessSerializer<K, V> implements Cache<K, V> {

    final private Synchronizer synchronizer = new Synchronizer();
    final private Cache<K, V> cache;

    public CacheAccessSerializer(Cache<K, V> cache) {
        this.cache = cache;
    }

    @Override
    public V get(final K key, final Function<? super K, ? extends V> factory) {
        return synchronizer.synchronize(() -> cache.get(key, factory));
    }

    @Override
    public V getIfPresent(K key) {
        return synchronizer.synchronize(() -> cache.getIfPresent(key));
    }

    @Override
    public void put(K key, V value) {
        synchronizer.synchronize(() -> cache.put(key, value));
    }
}
