1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.dao.orm.hibernate;
21  
22  import com.liferay.portal.kernel.util.GetterUtil;
23  import com.liferay.portal.util.PropsUtil;
24  
25  import com.opensymphony.oscache.base.CacheEntry;
26  
27  import java.util.Properties;
28  
29  import org.hibernate.cache.Cache;
30  import org.hibernate.cache.CacheException;
31  import org.hibernate.cache.CacheProvider;
32  import org.hibernate.cache.Timestamper;
33  import org.hibernate.util.StringHelper;
34  
35  /**
36   * <a href="OSCacheProvider.java.html"><b><i>View Source</i></b></a>
37   *
38   * @author Mathias Bogaert
39   * @author Brian Wing Shun Chan
40   *
41   */
42  public class OSCacheProvider implements CacheProvider {
43  
44      public static final String OSCACHE_REFRESH_PERIOD = "refresh.period";
45  
46      public static final String OSCACHE_CRON = "cron";
47  
48      public Cache buildCache(String region, Properties properties)
49          throws CacheException {
50  
51          int refreshPeriod = GetterUtil.getInteger(
52              PropsUtil.get(StringHelper.qualify(region, OSCACHE_REFRESH_PERIOD)),
53              CacheEntry.INDEFINITE_EXPIRY);
54  
55          String cron = PropsUtil.get(StringHelper.qualify(region, OSCACHE_CRON));
56  
57          return new CacheWrapper(new OSCache(refreshPeriod, cron, region));
58      }
59  
60      public boolean isMinimalPutsEnabledByDefault() {
61          return false;
62      }
63  
64      public long nextTimestamp() {
65          return Timestamper.next();
66      }
67  
68      public void start(Properties properties) throws CacheException {
69      }
70  
71      public void stop() {
72      }
73  
74  }