001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.cache.memcached;
016    
017    import com.liferay.portal.kernel.cache.PortalCache;
018    import com.liferay.portal.kernel.cache.PortalCacheManager;
019    
020    import java.net.URL;
021    
022    import java.util.Map;
023    import java.util.concurrent.ConcurrentHashMap;
024    import java.util.concurrent.TimeUnit;
025    
026    import net.spy.memcached.MemcachedClientIF;
027    
028    /**
029     * @author Michael C. Han
030     */
031    public class MemcachePortalCacheManager<V>
032            implements PortalCacheManager<String, V> {
033    
034            @Override
035            public void clearAll() {
036                    _memcachePortalCaches.clear();
037            }
038    
039            public void destroy() throws Exception {
040                    for (MemcachePortalCache<V> memcachePortalCache :
041                                    _memcachePortalCaches.values()) {
042    
043                            memcachePortalCache.destroy();
044                    }
045            }
046    
047            @Override
048            public PortalCache<String, V> getCache(String name) {
049                    return getCache(name, false);
050            }
051    
052            @Override
053            public PortalCache<String, V> getCache(String name, boolean blocking) {
054                    MemcachePortalCache<V> memcachePortalCache = _memcachePortalCaches.get(
055                            name);
056    
057                    if (memcachePortalCache == null) {
058                            try {
059                                    MemcachedClientIF memcachedClient =
060                                            _memcachedClientFactory.getMemcachedClient();
061    
062                                    memcachePortalCache = new MemcachePortalCache<V>(
063                                            name, memcachedClient, _timeout, _timeoutTimeUnit);
064    
065                                    _memcachePortalCaches.put(name, memcachePortalCache);
066                            }
067                            catch (Exception e) {
068                                    throw new IllegalStateException(
069                                            "Unable to initiatlize Memcache connection", e);
070                            }
071                    }
072    
073                    return memcachePortalCache;
074            }
075    
076            @Override
077            public void reconfigureCaches(URL configurationURL) {
078            }
079    
080            @Override
081            public void removeCache(String name) {
082                    _memcachePortalCaches.remove(name);
083            }
084    
085            public void setMemcachedClientPool(
086                    MemcachedClientFactory memcachedClientFactory) {
087    
088                    _memcachedClientFactory = memcachedClientFactory;
089            }
090    
091            public void setTimeout(int timeout) {
092                    _timeout = timeout;
093            }
094    
095            public void setTimeoutTimeUnit(String timeoutTimeUnit) {
096                    _timeoutTimeUnit = TimeUnit.valueOf(timeoutTimeUnit);
097            }
098    
099            private MemcachedClientFactory _memcachedClientFactory;
100            private Map<String, MemcachePortalCache<V>> _memcachePortalCaches =
101                    new ConcurrentHashMap<String, MemcachePortalCache<V>>();
102            private int _timeout;
103            private TimeUnit _timeoutTimeUnit;
104    
105    }