color chooser widget
[fanfix.git] / src / jexer / net / TelnetServerSocket.java
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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 */
31package jexer.net;
32
33import java.io.IOException;
34import java.net.InetAddress;
35import java.net.ServerSocket;
36import java.net.Socket;
37import java.net.SocketException;
38
39/**
40 * This class provides a ServerSocket that return TelnetSocket's in accept().
41 */
42public final class TelnetServerSocket extends ServerSocket {
43
44 // ServerSocket interface -------------------------------------------------
45
46 /**
47 * Creates an unbound server socket.
48 *
49 * @throws IOException if an I/O error occurs
50 */
51 public TelnetServerSocket() throws IOException {
52 super();
53 }
54
55 /**
56 * Creates a server socket, bound to the specified port.
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
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.
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
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.
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
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.
102 *
103 * @return the new Socket
104 * @throws IOException if an I/O error occurs
105 */
106 @Override
107 public Socket accept() throws IOException {
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;
118 }
119
120}