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1
3 package org.jgroups.tests;
4
5 import org.jgroups.Address;
6 import org.jgroups.blocks.ConnectionTable;
7 import org.jgroups.stack.IpAddress;
8
9 import java.io.BufferedReader  ;
10 import java.io.InputStreamReader ;
11
12
13 public class ConnectionTableDemo implements ConnectionTable.Receiver, ConnectionTable.ConnectionListener {
14 ConnectionTable ct=null;
15 String dst_host=null;
16 int dst_port=0;
17
18
19 public void receive(Address sender, byte[] data, int offset, int length) {
20 String s=new String (data, offset, length);
21 System.out.println("<-- " + s + " (from " + sender + ')');
22 }
23
24
25 public void connectionOpened(Address peer_addr) {
26 System.out.println("** Connection to " + peer_addr + " opened");
27 }
28
29 public void connectionClosed(Address peer_addr) {
30 System.out.println("** Connection to " + peer_addr + " closed");
31 }
32
33
34 public void start(int local_port, String dst_host, int dst_port,
35 long reaper_interval, long conn_expire_time) throws Exception {
36 BufferedReader in;
37 String line;
38 Address dest;
39 byte[] data;
40
41 if(reaper_interval > 0 || conn_expire_time > 0)
42 ct=new ConnectionTable(local_port, reaper_interval, conn_expire_time);
43 else
44 ct=new ConnectionTable(local_port);
45 ct.addConnectionListener(this);
46 this.dst_host=dst_host;
47 this.dst_port=dst_port;
48 ct.setReceiver(this);
49
50
52 in=new BufferedReader (new InputStreamReader (System.in));
53 while(true) {
54 try {
55 System.out.print("> ");
56 System.out.flush();
57 line=in.readLine();
58 if(line.startsWith("quit".toLowerCase()) ||
59 line.startsWith("exit".toLowerCase()))
60 break;
61 if(line.startsWith("conns")) {
62 System.out.println(ct);
63 continue;
64 }
65 dest=new IpAddress(dst_host, dst_port);
66 data=line.getBytes();
67 ct.send(dest, data, 0, data.length);
68 }
69 catch(Exception e) {
70 System.err.println(e);
71 }
72 }
73 ct.stop();
74 }
75
76
77 public static void main(String [] args) {
78 String host="localhost", tmp;
79 int port=6666, local_port=5555;
80 long reaper_interval=0;
81 long conn_expire_time=0;
82
83 for(int i=0; i < args.length; i++) {
84 tmp=args[i];
85 if("-local_port".equals(tmp)) {
86 local_port=Integer.parseInt(args[++i]);
87 continue;
88 }
89 if("-remote_host".equals(tmp)) {
90 host=args[++i];
91 continue;
92 }
93 if("-remote_port".equals(tmp)) {
94 port=Integer.parseInt(args[++i]);
95 continue;
96 }
97 if("-reaper_interval".equals(tmp)) {
98 reaper_interval=Long.parseLong(args[++i]);
99 continue;
100 }
101 if("-conn_expire_time".equals(tmp)) {
102 conn_expire_time=Long.parseLong(args[++i]);
103 continue;
104 }
105 help();
106 return;
107 }
108
109 try {
110 if(reaper_interval > 0 || conn_expire_time > 0) {
111 if(reaper_interval <= 0) reaper_interval=60000;
112 if(conn_expire_time <= 0) conn_expire_time=300000;
113 new ConnectionTableDemo().start(local_port, host, port, reaper_interval, conn_expire_time);
114 }
115 else {
116 new ConnectionTableDemo().start(local_port, host, port, 0, 0);
117 }
118 }
119 catch(Exception ex) {
120 System.err.println("ConnectionTableTest.main(): " + ex);
121 }
122 }
123
124
125 static void help() {
126 System.out.println("ConnectionTableTest [-help] [-local_port <port>] [-remote_host <host>] " +
127 "[-remote_port <port>] [-reaper_interval <interval (msecs)>] " +
128 "[-conn_expire_time <time (msecs)>]");
129 }
130
131
132 }
133 |
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