01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.portal.webcache;
22:
23: import com.liferay.portal.kernel.cache.PortalCache;
24: import com.liferay.portal.kernel.cache.SingleVMPoolUtil;
25: import com.liferay.portal.kernel.webcache.WebCacheException;
26: import com.liferay.portal.kernel.webcache.WebCacheItem;
27: import com.liferay.portal.kernel.webcache.WebCachePool;
28: import com.liferay.util.Time;
29:
30: import org.apache.commons.logging.Log;
31: import org.apache.commons.logging.LogFactory;
32:
33: /**
34: * <a href="WebCachePoolImpl.java.html"><b><i>View Source</i></b></a>
35: *
36: * @author Brian Wing Shun Chan
37: *
38: */
39: public class WebCachePoolImpl implements WebCachePool {
40:
41: public static final String CACHE_NAME = WebCachePool.class
42: .getName();
43:
44: public void clear() {
45: _cache.removeAll();
46: }
47:
48: public Object get(String key, WebCacheItem wci) {
49: Object obj = SingleVMPoolUtil.get(_cache, key);
50:
51: if (obj == null) {
52: try {
53: obj = wci.convert(key);
54:
55: int timeToLive = (int) (wci.getRefreshTime() / Time.SECOND);
56:
57: _cache.put(key, obj, timeToLive);
58: } catch (WebCacheException wce) {
59: Throwable cause = wce.getCause();
60:
61: if (cause != null) {
62: _log.error(cause, cause);
63: } else {
64: _log.error(wce, wce);
65: }
66: }
67: }
68:
69: return obj;
70: }
71:
72: public void remove(String key) {
73: SingleVMPoolUtil.remove(_cache, key);
74: }
75:
76: private WebCachePoolImpl() {
77: _cache = SingleVMPoolUtil.getCache(CACHE_NAME);
78: }
79:
80: private static Log _log = LogFactory.getLog(WebCachePoolImpl.class);
81:
82: private PortalCache _cache;
83:
84: }
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