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1 | /** |
2 | * Jexer - Java Text User Interface | |
3 | * | |
4 | * License: LGPLv3 or later | |
5 | * | |
6 | * This module is licensed under the GNU Lesser General Public License | |
7 | * Version 3. Please see the file "COPYING" in this directory for more | |
8 | * information about the GNU Lesser General Public License Version 3. | |
9 | * | |
10 | * Copyright (C) 2015 Kevin Lamonte | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU Lesser General Public License | |
14 | * as published by the Free Software Foundation; either version 3 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Lesser General Public | |
23 | * License along with this program; if not, see | |
24 | * http://www.gnu.org/licenses/, or write to the Free Software | |
25 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
26 | * 02110-1301 USA | |
27 | * | |
28 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
29 | * @version 1 | |
30 | */ | |
31 | package jexer.net; | |
32 | ||
ea91242c | 33 | import java.io.IOException; |
ea91242c KL |
34 | import java.net.InetAddress; |
35 | import java.net.ServerSocket; | |
36 | import java.net.Socket; | |
9b1afdde | 37 | import java.net.SocketException; |
ea91242c KL |
38 | |
39 | /** | |
40 | * This class provides a ServerSocket that return TelnetSocket's in accept(). | |
41 | */ | |
42 | public final class TelnetServerSocket extends ServerSocket { | |
43 | ||
44 | // ServerSocket interface ------------------------------------------------- | |
45 | ||
46 | /** | |
47 | * Creates an unbound server socket. | |
9b1afdde KL |
48 | * |
49 | * @throws IOException if an I/O error occurs | |
ea91242c KL |
50 | */ |
51 | public TelnetServerSocket() throws IOException { | |
52 | super(); | |
53 | } | |
54 | ||
55 | /** | |
56 | * Creates a server socket, bound to the specified port. | |
9b1afdde KL |
57 | * |
58 | * @param port the port number, or 0 to use a port number that is | |
59 | * automatically allocated. | |
60 | * @throws IOException if an I/O error occurs | |
ea91242c KL |
61 | */ |
62 | public TelnetServerSocket(final int port) throws IOException { | |
63 | super(port); | |
64 | } | |
65 | ||
66 | /** | |
67 | * Creates a server socket and binds it to the specified local port | |
68 | * number, with the specified backlog. | |
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69 | * |
70 | * @param port the port number, or 0 to use a port number that is | |
71 | * automatically allocated. | |
72 | * @param backlog requested maximum length of the queue of incoming | |
73 | * connections. | |
74 | * @throws IOException if an I/O error occurs | |
ea91242c KL |
75 | */ |
76 | public TelnetServerSocket(final int port, | |
77 | final int backlog) throws IOException { | |
78 | ||
79 | super(port, backlog); | |
80 | } | |
81 | ||
82 | /** | |
83 | * Create a server with the specified port, listen backlog, and local IP | |
84 | * address to bind to. | |
9b1afdde KL |
85 | * |
86 | * @param port the port number, or 0 to use a port number that is | |
87 | * automatically allocated. | |
88 | * @param backlog requested maximum length of the queue of incoming | |
89 | * connections. | |
90 | * @param bindAddr the local InetAddress the server will bind to | |
91 | * @throws IOException if an I/O error occurs | |
ea91242c KL |
92 | */ |
93 | public TelnetServerSocket(final int port, final int backlog, | |
94 | final InetAddress bindAddr) throws IOException { | |
95 | ||
96 | super(port, backlog, bindAddr); | |
97 | } | |
98 | ||
99 | /** | |
100 | * Listens for a connection to be made to this socket and accepts it. The | |
101 | * method blocks until a connection is made. | |
9b1afdde KL |
102 | * |
103 | * @return the new Socket | |
104 | * @throws IOException if an I/O error occurs | |
ea91242c KL |
105 | */ |
106 | @Override | |
107 | public Socket accept() throws IOException { | |
9b1afdde KL |
108 | if (isClosed()) { |
109 | throw new SocketException("Socket is closed"); | |
110 | } | |
111 | if (!isBound()) { | |
112 | throw new SocketException("Socket is not bound"); | |
113 | } | |
114 | ||
115 | Socket socket = new TelnetSocket(); | |
116 | implAccept(socket); | |
117 | return socket; | |
ea91242c | 118 | } |
9b1afdde | 119 | |
ea91242c | 120 | } |