| CacheRegistry.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.kernel.cache;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27
28 import java.util.Map;
29 import java.util.concurrent.ConcurrentHashMap;
30
31 /**
32 * <a href="CacheRegistry.java.html"><b><i>View Source</i></b></a>
33 *
34 * @author Brian Wing Shun Chan
35 *
36 */
37 public class CacheRegistry {
38
39 public static void clear() {
40 for (Map.Entry<String, CacheRegistryItem> entry : _items.entrySet()) {
41 CacheRegistryItem item = entry.getValue();
42
43 item.invalidate();
44 }
45 }
46
47 public static boolean isActive() {
48 return _active;
49 }
50
51 public static void register(CacheRegistryItem item) {
52 String name = item.getRegistryName();
53
54 if (_log.isDebugEnabled()) {
55 _log.debug("Registering " + name);
56 }
57
58 if (_items.containsKey(name)) {
59 if (_log.isDebugEnabled()) {
60 _log.debug("Not registering duplicate " + name);
61 }
62 }
63 else {
64 _items.put(name, item);
65 }
66 }
67
68 public static void setActive(boolean active) {
69 _active = active;
70
71 if (!active) {
72 clear();
73 }
74 }
75
76 public static void unregister(String name) {
77 if (_log.isDebugEnabled()) {
78 _log.debug("Unregistering " + name);
79 }
80
81 _items.remove(name);
82 }
83
84 private static Log _log = LogFactoryUtil.getLog(CacheRegistry.class);
85
86 private static boolean _active = true;
87 private static Map<String, CacheRegistryItem> _items =
88 new ConcurrentHashMap<String, CacheRegistryItem>();
89
90 }