-
Notifications
You must be signed in to change notification settings - Fork 0
/
MainDataServer.java
85 lines (75 loc) · 3.03 KB
/
MainDataServer.java
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
/**
* Main Class for a TCP based server
* Qijia (Michael) Jin
* @version 1.0
*
Copyright (C) 2015 Qijia (Michael) Jin
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import java.util.*;
import java.io.*;
import java.net.*;
public class MainDataServer {
private static int DEFAULT_PORT = 2000; //listen for requests on this port
private static ServerSocket SERVER_SOCKET;
private static SocketAddress SERVER_ADDRESS;
private static boolean isListening; //should this program still check for pending requests
public static void main(String[] args) {
List<PortAllocation> PORT_LIST = Collections.synchronizedList(new ArrayList<PortAllocation>()); //probably want another thread to read in the data
isListening = true;
try {
SERVER_ADDRESS = new InetSocketAddress(InetAddress.getLocalHost(), DEFAULT_PORT); //should return localhost
try {
SERVER_SOCKET = new ServerSocket();
try {
SERVER_SOCKET.setReuseAddress(true); //keep listening to this port
SERVER_SOCKET.bind(SERVER_ADDRESS);
try {
System.out.println(InetAddress.getLocalHost());
System.out.println("Port open at: " + DEFAULT_PORT);
while (isListening) {
synchronized (PORT_LIST) {
Socket tmp = SERVER_SOCKET.accept();
BufferedReader buffered_in = new BufferedReader (new InputStreamReader(tmp.getInputStream()));
BufferedWriter buffered_out = new BufferedWriter (new OutputStreamWriter(tmp.getOutputStream()));
Integer NEW_PORT = new Integer(PORT_LIST.size() + DEFAULT_PORT + 1);
buffered_out.append(NEW_PORT.toString() + System.getProperty("line.separator")); //new port address
buffered_out.flush();
System.out.println(buffered_in.readLine());
System.out.println("" + NEW_PORT);
new Thread(new PortAllocation(NEW_PORT, PORT_LIST)).start();
System.out.println("Number of existing sockets: " + PORT_LIST.size());
}
}
}
catch (SocketException se) {
System.out.println("Socket Exception: " + se.getMessage());
return;
}
}
catch (IOException ie) {
System.out.println("I/O Exception: " + ie.getMessage());
return;
}
}
catch (IOException ie) {
System.out.println("I/O Exception: " + ie.getMessage());
return;
}
}
catch (UnknownHostException uhe) {
System.out.println("Unknown Host Exception: " + uhe.getMessage());
return;
}
}
}