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A simple java cache API
There is a newer version: 1.8.2
/*
 * Copyright (C) 2013 The Rythm Engine project
 * Gelin Luo 
 *
 * 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
 *
 *      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.osgl.cache.impl;

/*-
 * #%L
 * OSGL Cache API
 * %%
 * Copyright (C) 2017 OSGL (Open Source General Library)
 * %%
 * 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.
 * #L%
 */

import org.osgl.$;
import org.osgl.cache.CacheService;
import org.osgl.cache.CacheServiceProvider;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

/**
 * Returns instance of {@link org.osgl.cache.impl.EhCacheService}
 */
public class EhCacheServiceProvider implements CacheServiceProvider {
    public static EhCacheServiceProvider INSTANCE = new EhCacheServiceProvider();
    private static ConcurrentMap services = new ConcurrentHashMap();

    @Override
    public CacheService get() {
        return get(CacheService.DEF_CACHE_NAME);
    }

    @Override
    public CacheService get(String name) {
        CacheService cs = services.get(name);
        if (null == cs) {
            ClassLoader classLoader = CacheServiceProvider.Impl.classLoader();
            if (null != classLoader) {
                Class c = $.classForName("org.osgl.cache.impl.EhCacheService", classLoader);
                cs = $.newInstance(c, name);
            } else {
                cs = new EhCacheService(name);
            }
            services.putIfAbsent(name, cs);
        }
        return cs;
    }
}