Mercurial > 510Connectbot
comparison src/org/tn5250j/framework/transport/SocketConnector.java @ 3:e8d2a24e85c6 tn5250
adding tn5250 files
author | Carl Byington <carl@five-ten-sg.com> |
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date | Thu, 22 May 2014 12:11:10 -0700 |
parents | |
children | 3b760b39962a |
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2:a01665cb683d | 3:e8d2a24e85c6 |
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1 | |
2 /** | |
3 * @(#)SocketConnector.java | |
4 * @author Stephen M. Kennedy | |
5 * | |
6 * Copyright: Copyright (c) 2001 | |
7 * | |
8 * This program is free software; you can redistribute it and/or modify | |
9 * it under the terms of the GNU General Public License as published by | |
10 * the Free Software Foundation; either version 2, or (at your option) | |
11 * any later version. | |
12 * | |
13 * This program is distributed in the hope that it will be useful, | |
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 * GNU General Public License for more details. | |
17 * | |
18 * You should have received a copy of the GNU General Public License | |
19 * along with this software; see the file COPYING. If not, write to | |
20 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
21 * Boston, MA 02111-1307 USA | |
22 * | |
23 */ | |
24 package org.tn5250j.framework.transport; | |
25 | |
26 import java.net.Socket; | |
27 | |
28 import org.tn5250j.TN5250jConstants; | |
29 import org.tn5250j.tools.logging.TN5250jLogFactory; | |
30 import org.tn5250j.tools.logging.TN5250jLogger; | |
31 | |
32 public class SocketConnector { | |
33 | |
34 String sslType = null; | |
35 | |
36 TN5250jLogger logger; | |
37 | |
38 /** | |
39 * Creates a new instance that creates a plain socket by default. | |
40 */ | |
41 public SocketConnector() { | |
42 logger = TN5250jLogFactory.getLogger(getClass()); | |
43 } | |
44 | |
45 /** | |
46 * Set the type of SSL connection to use. Specify null or an empty string | |
47 * to use a plain socket. | |
48 * @param type The SSL connection type | |
49 * @see org.tn5250j.framework.transport.SSLConstants | |
50 */ | |
51 public void setSSLType(String type) { | |
52 sslType = type; | |
53 } | |
54 | |
55 /** | |
56 * Create a new client Socket to the given destination and port. If an SSL | |
57 * socket type has not been specified <i>(by setSSLType(String))</i>, then | |
58 * a plain socket will be created. Otherwise, a new SSL socket of the | |
59 * specified type will be created. | |
60 * @param destination | |
61 * @param port | |
62 * @return a new client socket, or null if | |
63 */ | |
64 public Socket createSocket(String destination, int port) { | |
65 | |
66 Socket socket = null; | |
67 Exception ex = null; | |
68 | |
69 if (sslType == null || sslType.trim().length() == 0 || | |
70 sslType.toUpperCase().equals(TN5250jConstants.SSL_TYPE_NONE)) { | |
71 logger.info("Creating Plain Socket"); | |
72 try { | |
73 // Use Socket Constructor!!! SocketFactory for jdk 1.4 | |
74 socket = new Socket(destination,port); | |
75 } catch (Exception e) { | |
76 ex = e; | |
77 } | |
78 } else { //SSL SOCKET | |
79 | |
80 logger.info("Creating SSL ["+sslType+"] Socket"); | |
81 | |
82 SSLInterface sslIf = null; | |
83 | |
84 String sslImplClassName = | |
85 "org.tn5250j.framework.transport.SSL.SSLImplementation"; | |
86 try { | |
87 Class<?> c = Class.forName(sslImplClassName); | |
88 sslIf = (SSLInterface)c.newInstance(); | |
89 } catch (Exception e) { | |
90 ex = new Exception("Failed to create SSLInterface Instance. " + | |
91 "Message is ["+e.getMessage()+"]"); | |
92 } | |
93 | |
94 if (sslIf != null) { | |
95 sslIf.init(sslType); | |
96 socket = sslIf.createSSLSocket(destination,port); | |
97 } | |
98 } | |
99 | |
100 if (ex != null) { | |
101 logger.error(ex); | |
102 } | |
103 if (socket == null) { | |
104 logger.warn("No socket was created"); | |
105 } | |
106 return socket; | |
107 } | |
108 | |
109 | |
110 } |