| HotDeployUtil.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.deploy.hot;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27
28 import java.util.List;
29 import java.util.Vector;
30
31 /**
32 * <a href="HotDeployUtil.java.html"><b><i>View Source</i></b></a>
33 *
34 * @author Ivica Cardic
35 * @author Brian Wing Shun Chan
36 *
37 */
38 public class HotDeployUtil {
39
40 public static void fireDeployEvent(HotDeployEvent event) {
41 _instance._fireDeployEvent(event);
42 }
43
44 public static void fireUndeployEvent(HotDeployEvent event) {
45 _instance._fireUndeployEvent(event);
46 }
47
48 public static void flushEvents() {
49 _instance._flushEvents();
50 }
51
52 public static void registerListener(HotDeployListener listener) {
53 _instance._registerListener(listener);
54 }
55
56 public static void unregisterListeners() {
57 _instance._unregisterListeners();
58 }
59
60 private HotDeployUtil() {
61 if (_log.isInfoEnabled()) {
62 _log.info("Initializing hot deploy manager " + this.hashCode());
63 }
64
65 _listeners = new Vector<HotDeployListener>();
66 _events = new Vector<HotDeployEvent>();
67 }
68
69 private synchronized void _fireDeployEvent(HotDeployEvent event) {
70
71 // Capture events that are fired before the portal initialized. These
72 // events are later fired by flushEvents.
73
74 if (_events != null) {
75 _events.add(event);
76
77 return;
78 }
79
80 // Fire current event
81
82 for (HotDeployListener listener : _listeners) {
83 try {
84 listener.invokeDeploy(event);
85 }
86 catch (HotDeployException hde) {
87 _log.error(hde, hde);
88 }
89 }
90 }
91
92 private void _fireUndeployEvent(HotDeployEvent event) {
93 for (HotDeployListener listener : _listeners) {
94 try {
95 listener.invokeUndeploy(event);
96 }
97 catch (HotDeployException hde) {
98 _log.error(hde, hde);
99 }
100 }
101 }
102
103 private synchronized void _flushEvents() {
104 for (HotDeployEvent event : _events) {
105 for (HotDeployListener listener : _listeners) {
106 try {
107 listener.invokeDeploy(event);
108 }
109 catch (HotDeployException hde) {
110 _log.error(hde, hde);
111 }
112 }
113 }
114
115 _events = null;
116 }
117
118 private void _registerListener(HotDeployListener listener) {
119 _listeners.add(listener);
120 }
121
122 private void _unregisterListeners() {
123 _listeners.clear();
124 }
125
126 private static Log _log = LogFactoryUtil.getLog(HotDeployUtil.class);
127
128 private static HotDeployUtil _instance = new HotDeployUtil();
129
130 private List<HotDeployListener> _listeners;
131 private List<HotDeployEvent> _events;
132
133 }