| MulticastClientTool.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.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27
28 import java.util.HashMap;
29 import java.util.Map;
30
31 /**
32 * <a href="MulticastClientTool.java.html"><b><i>View Source</i></b></a>
33 *
34 * <p>
35 * A client that listens for multicast messages at a designated port. You may
36 * use this to for potential multicast issues when tuning distributed caches.
37 * </p>
38 *
39 * @author Michael C. Han
40 * @author Raymond Augé
41 *
42 */
43 public class MulticastClientTool {
44
45 public static void main(String[] args) {
46 try {
47 new MulticastClientTool(args);
48 }
49 catch (Exception e) {
50 _log.error(e);
51
52 StringBuilder sb = new StringBuilder();
53
54 sb.append("Usage: java -classpath ");
55 sb.append("commons-logging.jar:util-java.jar ");
56 sb.append("com.liferay.util.transport.MulticastClientTool [-g] ");
57 sb.append("[-s] -h [multicastAddress] -p [port]");
58
59 System.err.println(sb.toString());
60
61 System.exit(1);
62 }
63 }
64
65 private MulticastClientTool(String[] args) throws Exception {
66 Map<String, Object> argsMap = _getArgsMap(args);
67
68 Integer port = (Integer)argsMap.get("port");
69 String host = (String)argsMap.get("host");
70 Boolean gzipData = (Boolean)argsMap.get("gzip");
71 Boolean shortData = (Boolean)argsMap.get("short");
72
73 DatagramHandler handler = new MulticastDatagramHandler(
74 gzipData.booleanValue(), shortData.booleanValue());
75
76 MulticastTransport transport = new MulticastTransport(
77 handler, host, port);
78
79 if (_log.isInfoEnabled()) {
80 if (shortData.booleanValue()) {
81 _log.info("Truncating to 96 bytes.");
82 }
83
84 _log.info("Started up and waiting...");
85 }
86
87 transport.connect();
88
89 synchronized (transport) {
90 transport.wait();
91 }
92 }
93
94 private Map<String, Object> _getArgsMap(String[] args)
95 throws Exception {
96
97 Map<String, Object> argsMap = new HashMap<String, Object>();
98
99 for (int i = 0; i < args.length; i++) {
100 if (args[i].equals("-g")) {
101 argsMap.put("gzip", Boolean.TRUE);
102 }
103 else if (args[i].equals("-s")) {
104 argsMap.put("short", Boolean.TRUE);
105 }
106 else if (args[i].equals("-h")) {
107 argsMap.put("host", args[i + 1]);
108
109 i++;
110 }
111 else if (args[i].equals("-p")) {
112 argsMap.put("port", new Integer(args[i + 1]));
113
114 i++;
115 }
116 }
117
118 if (!argsMap.containsKey("gzip")) {
119 argsMap.put("gzip", Boolean.FALSE);
120 }
121
122 if (!argsMap.containsKey("short")) {
123 argsMap.put("short", Boolean.FALSE);
124 }
125
126 return argsMap;
127 }
128
129 private static final Log _log = LogFactoryUtil.getLog(
130 MulticastClientTool.class);
131
132 }