blob: 19ed1c7d5c84a8b387e744f9412d0615841a3d52 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2004-2010. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
import com.ericsson.otp.erlang.*;
public class connection_server {
static java.lang.String Name = "connection_server";
public static void main(String[] argv) {
try {
System.out.println("connection_server booting...");
for (int j = 0; j < argv.length; j++)
System.out.println("argv[" + j + "] = \"" + argv[j] + "\"");
if (argv.length != 4) {
System.out.println("Wrong number of arguments!");
System.exit(1);
}
// Start node and mbox
OtpNode node = new OtpNode(argv[0], argv[1]);
OtpMbox mbox = node.createMbox();
if (! mbox.registerName(Name)) {
System.out.println("Could not register name " + Name);
System.exit(3);
}
// Announce our presence
OtpErlangObject[] amsg = new OtpErlangObject[3];
amsg[0] = new OtpErlangAtom(Name);
amsg[1] = new OtpErlangAtom(argv[0]);
amsg[2] = mbox.self();
OtpErlangTuple atuple = new OtpErlangTuple(amsg);
mbox.send(argv[3], argv[2], atuple);
// Do connects ...
while (true) {
OtpErlangObject o = mbox.receive();
if (o == null)
continue;
if (o instanceof OtpErlangTuple) {
OtpErlangTuple msg = (OtpErlangTuple) o;
OtpErlangPid from = (OtpErlangPid)(msg.elementAt(0));
OtpErlangAtom conn_node = (OtpErlangAtom) msg.elementAt(1);
System.out.println("Got request to connect to: "
+ conn_node);
OtpErlangObject[] rmsg = new OtpErlangObject[3];
rmsg[0] = mbox.self();
rmsg[1] = conn_node;
if (node.ping(conn_node.atomValue(), 1000)) {
System.out.println("Successfully connected to "
+ conn_node.toString());
rmsg[2] = new OtpErlangAtom("true");
}
else {
System.out.println("Failed to connect to "
+ conn_node.toString());
rmsg[2] = new OtpErlangAtom("false");
}
OtpErlangTuple rtuple = new OtpErlangTuple(rmsg);
mbox.send(from, rtuple);
}
else { // probably 'bye'
System.out.println("connection_server halting...");
System.exit(0);
}
}
}
catch (Exception e) {
System.out.println("" + e);
System.exit(2);
}
}
}
|