01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.util.transport;
22:
23: import com.liferay.portal.kernel.util.GetterUtil;
24:
25: import java.net.DatagramPacket;
26: import java.net.InetAddress;
27:
28: /**
29: * <a href="MulticastServerTool.java.html"><b><i>View Source</i></b></a>
30: *
31: * <p>
32: * A server that will send out heart beat messages until you kill it. This
33: * enables you to try and debug multicast issues.
34: * </p>
35: *
36: * @author Michael C. Han
37: *
38: */
39: public class MulticastServerTool {
40:
41: public static void main(String[] args) {
42: try {
43: int port = GetterUtil.getInteger(args[1]);
44: long interval = GetterUtil.getLong(args[2]);
45:
46: DatagramHandler handler = new DatagramHandler() {
47:
48: public void process(DatagramPacket packet) {
49: String s = new String(packet.getData(), 0, packet
50: .getLength());
51: System.out.println(s);
52: }
53:
54: public void errorReceived(Throwable t) {
55: t.printStackTrace();
56: }
57:
58: };
59:
60: MulticastTransport transport = new MulticastTransport(
61: handler, args[0], port);
62:
63: transport.connect();
64:
65: String msg = InetAddress.getLocalHost().getHostName() + ":"
66: + port + " heartbeat ";
67:
68: int i = 0;
69:
70: while (true) {
71: transport.sendMessage(msg + i);
72:
73: i++;
74:
75: Thread.sleep(interval);
76: }
77: } catch (Exception e) {
78: e.printStackTrace();
79:
80: System.err
81: .println("Usage: java MulticastServerTool multicastAddress port "
82: + "interval");
83:
84: System.exit(1);
85: }
86: }
87:
88: }
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