| WebCachePoolImpl.java |
1 /**
2 * Copyright (c) 2000-2008 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.webcache;
24
25 import com.liferay.portal.kernel.bean.InitializingBean;
26 import com.liferay.portal.kernel.cache.PortalCache;
27 import com.liferay.portal.kernel.cache.SingleVMPool;
28 import com.liferay.portal.kernel.util.Time;
29 import com.liferay.portal.kernel.webcache.WebCacheException;
30 import com.liferay.portal.kernel.webcache.WebCacheItem;
31 import com.liferay.portal.kernel.webcache.WebCachePool;
32
33 import org.apache.commons.logging.Log;
34 import org.apache.commons.logging.LogFactory;
35
36 /**
37 * <a href="WebCachePoolImpl.java.html"><b><i>View Source</i></b></a>
38 *
39 * @author Brian Wing Shun Chan
40 *
41 */
42 public class WebCachePoolImpl implements InitializingBean, WebCachePool {
43
44 public static final String CACHE_NAME = WebCachePool.class.getName();
45
46 public void afterPropertiesSet() {
47 _cache = _singleVMPool.getCache(CACHE_NAME);
48 }
49
50 public void clear() {
51 _cache.removeAll();
52 }
53
54 public Object get(String key, WebCacheItem wci) {
55 Object obj = _singleVMPool.get(_cache, key);
56
57 if (obj == null) {
58 try {
59 obj = wci.convert(key);
60
61 int timeToLive = (int)(wci.getRefreshTime() / Time.SECOND);
62
63 _cache.put(key, obj, timeToLive);
64 }
65 catch (WebCacheException wce) {
66 Throwable cause = wce.getCause();
67
68 if (cause != null) {
69 _log.error(cause, cause);
70 }
71 else {
72 _log.error(wce, wce);
73 }
74 }
75 }
76
77 return obj;
78 }
79
80 public void remove(String key) {
81 _singleVMPool.remove(_cache, key);
82 }
83
84 public void setSingleVMPool(SingleVMPool singleVMPool) {
85 _singleVMPool = singleVMPool;
86 }
87
88 private static Log _log = LogFactory.getLog(WebCachePoolImpl.class);
89
90 private SingleVMPool _singleVMPool;
91 private PortalCache _cache;
92
93 }