/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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
 *
 *    https://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.grails.datastore.mapping.cache.impl;

import java.io.Serializable;
import java.util.concurrent.ConcurrentHashMap;

import org.grails.datastore.mapping.cache.TPCacheAdapter;
import org.grails.datastore.mapping.cache.exception.CacheException;

/**
 * Simple implementation of {@link org.grails.datastore.mapping.cache.TPCacheAdapter} backed by a local hash map.
 *
 * @author Roman Stepanenko
 */
public class HashMapTPCacheAdapter<T> implements TPCacheAdapter<T> {
    public void cacheEntry(Serializable key, T entry) throws CacheException {
        cache.put(key, entry);
    }

    public T getCachedEntry(Serializable key) throws CacheException {
        return cache.get(key);
    }

    private ConcurrentHashMap<Object, T> cache = new ConcurrentHashMap<>();
}
