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