| MulticastServerTool.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.util.transport;
24
25 import com.liferay.portal.kernel.util.GetterUtil;
26
27 import java.net.DatagramPacket;
28 import java.net.InetAddress;
29
30 /**
31 * <a href="MulticastServerTool.java.html"><b><i>View Source</i></b></a>
32 *
33 * <p>
34 * A server that will send out heart beat messages until you kill it. This
35 * enables you to try and debug multicast issues.
36 * </p>
37 *
38 * @author Michael C. Han
39 *
40 */
41 public class MulticastServerTool {
42
43 public static void main(String[] args) {
44 try {
45 int port = GetterUtil.getInteger(args[1]);
46 long interval = GetterUtil.getLong(args[2]);
47
48 DatagramHandler handler = new DatagramHandler() {
49
50 public void process(DatagramPacket packet) {
51 String s = new String(
52 packet.getData(), 0, packet.getLength());
53
54 System.out.println(s);
55 }
56
57 public void errorReceived(Throwable t) {
58 t.printStackTrace();
59 }
60
61 };
62
63 MulticastTransport transport = new MulticastTransport(
64 handler, args[0], port);
65
66 transport.connect();
67
68 String msg =
69 InetAddress.getLocalHost().getHostName() + ":" + port +
70 " heartbeat " ;
71
72 int i = 0;
73
74 while (true) {
75 transport.sendMessage(msg + i);
76
77 i++;
78
79 Thread.sleep(interval);
80 }
81 }
82 catch (Exception e) {
83 e.printStackTrace();
84
85 System.err.println(
86 "Usage: java MulticastServerTool multicastAddress port " +
87 "interval");
88
89 System.exit(1);
90 }
91 }
92
93 }