1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.dao.orm.hibernate;
24  
25  import com.liferay.portal.kernel.util.GetterUtil;
26  import com.liferay.portal.util.PropsUtil;
27  
28  import com.opensymphony.oscache.base.CacheEntry;
29  
30  import java.util.Properties;
31  
32  import org.hibernate.cache.Cache;
33  import org.hibernate.cache.CacheException;
34  import org.hibernate.cache.CacheProvider;
35  import org.hibernate.cache.Timestamper;
36  import org.hibernate.util.StringHelper;
37  
38  /**
39   * <a href="OSCacheProvider.java.html"><b><i>View Source</i></b></a>
40   *
41   * @author Mathias Bogaert
42   * @author Brian Wing Shun Chan
43   *
44   */
45  public class OSCacheProvider implements CacheProvider {
46  
47      public static final String OSCACHE_REFRESH_PERIOD = "refresh.period";
48  
49      public static final String OSCACHE_CRON = "cron";
50  
51      public Cache buildCache(String region, Properties properties)
52          throws CacheException {
53  
54          int refreshPeriod = GetterUtil.getInteger(
55              PropsUtil.get(StringHelper.qualify(region, OSCACHE_REFRESH_PERIOD)),
56              CacheEntry.INDEFINITE_EXPIRY);
57  
58          String cron = PropsUtil.get(StringHelper.qualify(region, OSCACHE_CRON));
59  
60          return new CacheWrapper(new OSCache(refreshPeriod, cron, region));
61      }
62  
63      public boolean isMinimalPutsEnabledByDefault() {
64          return false;
65      }
66  
67      public long nextTimestamp() {
68          return Timestamper.next();
69      }
70  
71      public void start(Properties properties) throws CacheException {
72      }
73  
74      public void stop() {
75      }
76  
77  }