| CacheRegistry.java |
1 /**
2 * Copyright (c) 2000-2009 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 if (_log.isDebugEnabled()) {
44 _log.debug("Invalidating " + item.getRegistryName());
45 }
46
47 item.invalidate();
48 }
49 }
50
51 public static void clear(String name) {
52 CacheRegistryItem item = _items.get(name);
53
54 if (item != null) {
55 if (_log.isDebugEnabled()) {
56 _log.debug("Invalidating " + name);
57 }
58
59 item.invalidate();
60 }
61 else {
62 _log.error("No cache registry found with name " + name);
63 }
64 }
65
66 public static boolean isActive() {
67 return _active;
68 }
69
70 public static void register(CacheRegistryItem item) {
71 String name = item.getRegistryName();
72
73 if (_log.isDebugEnabled()) {
74 _log.debug("Registering " + name);
75 }
76
77 if (_items.containsKey(name)) {
78 if (_log.isDebugEnabled()) {
79 _log.debug("Not registering duplicate " + name);
80 }
81 }
82 else {
83 _items.put(name, item);
84 }
85 }
86
87 public static void setActive(boolean active) {
88 _active = active;
89
90 if (!active) {
91 clear();
92 }
93 }
94
95 public static void unregister(String name) {
96 if (_log.isDebugEnabled()) {
97 _log.debug("Unregistering " + name);
98 }
99
100 _items.remove(name);
101 }
102
103 private static Log _log = LogFactoryUtil.getLog(CacheRegistry.class);
104
105 private static boolean _active = true;
106 private static Map<String, CacheRegistryItem> _items =
107 new ConcurrentHashMap<String, CacheRegistryItem>();
108
109 }