| ShutdownUtil.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 *
5 *
6 *
7 * The contents of this file are subject to the terms of the Liferay Enterprise
8 * Subscription License ("License"). You may not use this file except in
9 * compliance with the License. You can obtain a copy of the License by
10 * contacting Liferay, Inc. See the License for the specific language governing
11 * permissions and limitations under the License, including but not limited to
12 * distribution rights 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.util;
24
25 import com.liferay.portal.kernel.util.StringPool;
26
27 import java.util.Date;
28
29 /**
30 * <a href="ShutdownUtil.java.html"><b><i>View Source</i></b></a>
31 *
32 * @author Brian Wing Shun Chan
33 */
34 public class ShutdownUtil {
35
36 public static void cancel() {
37 _instance._cancel();
38 }
39
40 public static long getInProcess() {
41 return _instance._getInProcess();
42 }
43
44 public static String getMessage() {
45 return _instance._getMessage();
46 }
47
48 public static boolean isInProcess() {
49 return _instance._isInProcess();
50 }
51
52 public static boolean isShutdown() {
53 return _instance._isShutdown();
54 }
55
56 public static void shutdown(long milliseconds) {
57 shutdown(milliseconds, StringPool.BLANK);
58 }
59
60 public static void shutdown(long milliseconds, String message) {
61 _instance._shutdown(milliseconds, message);
62 }
63
64 private ShutdownUtil() {
65 }
66
67 private void _cancel() {
68 _date = null;
69 _message = null;
70 }
71
72 private long _getInProcess() {
73 long milliseconds = 0;
74
75 if (_date != null) {
76 milliseconds = _date.getTime() - System.currentTimeMillis();
77 }
78
79 return milliseconds;
80 }
81
82 private String _getMessage() {
83 return _message;
84 }
85
86 private boolean _isInProcess() {
87 if (_date == null) {
88 return false;
89 }
90 else {
91 if (_date.after(new Date())) {
92 return true;
93 }
94 else {
95 return false;
96 }
97 }
98 }
99
100 private boolean _isShutdown() {
101 if (_date == null) {
102 return false;
103 }
104 else {
105 if (_date.before(new Date())) {
106 return true;
107 }
108 else {
109 return false;
110 }
111 }
112 }
113
114 private void _shutdown(long milliseconds, String message) {
115 _date = new Date(System.currentTimeMillis() + milliseconds);
116 _message = message;
117 }
118
119 private static ShutdownUtil _instance = new ShutdownUtil();
120
121 private Date _date;
122 private String _message;
123
124 }