| OSCacheProvider.java |
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 }