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comparison src/com/go/trove/net/CheckedSocketException.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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1 /* ====================================================================
2 * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group
3 * ====================================================================
4 * The Tea Software License, Version 1.1
5 *
6 * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. The end-user documentation included with the redistribution,
21 * if any, must include the following acknowledgment:
22 * "This product includes software developed by the
23 * Walt Disney Internet Group (http://opensource.go.com/)."
24 * Alternately, this acknowledgment may appear in the software itself,
25 * if and wherever such third-party acknowledgments normally appear.
26 *
27 * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must
28 * not be used to endorse or promote products derived from this
29 * software without prior written permission. For written
30 * permission, please contact opensource@dig.com.
31 *
32 * 5. Products derived from this software may not be called "Tea",
33 * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet",
34 * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior
35 * written permission of the Walt Disney Internet Group.
36 *
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS
41 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
42 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
44 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
45 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * For more information about Tea, please see http://opensource.go.com/.
51 */
52
53 package com.go.trove.net;
54
55 import java.io.*;
56 import java.net.*;
57 import java.lang.ref.*;
58
59 /******************************************************************************
60 * A SocketException that prints out additional detail in the message: address
61 * and port of the socket.
62 *
63 * @author Brian S O'Neill
64 * @version
65 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/01/22 <!-- $-->
66 */
67 public class CheckedSocketException extends SocketException {
68 static CheckedSocketException create
69 (Exception cause, Socket source) {
70 if (cause instanceof CheckedSocketException) {
71 return (CheckedSocketException)cause;
72 }
73 else {
74 return new CheckedSocketException(cause, source);
75 }
76 }
77
78 static CheckedSocketException create
79 (Exception cause, Socket source, String message) {
80 if (cause instanceof CheckedSocketException) {
81 return (CheckedSocketException)cause;
82 }
83 else {
84 return new CheckedSocketException(cause, source, message);
85 }
86 }
87
88 static String createMessagePrefix(Socket source) {
89 return
90 "[" + source.getLocalAddress().getHostAddress() +
91 ':' + source.getLocalPort() +
92 ',' + source.getInetAddress().getHostAddress() +
93 ':' + source.getPort() + ']';
94 }
95
96 private Exception mCause;
97 private String mMessagePrefix;
98 private Reference mSource;
99
100 private CheckedSocketException(Exception cause, Socket source) {
101 this(cause, source, cause.getMessage());
102 }
103
104 private CheckedSocketException(Exception cause, Socket source,
105 String message) {
106 super(createMessagePrefix(source) + ' ' + message);
107 mCause = cause;
108 mMessagePrefix = createMessagePrefix(source);
109 mSource = new WeakReference(source);
110 }
111
112 public Throwable getCause() {
113 return mCause;
114 }
115
116 /**
117 * Returns null if source socket has been reclaimed by the garbage
118 * collector.
119 */
120 public Socket getSource() {
121 return (Socket)mSource.get();
122 }
123
124 public void printStackTrace() {
125 printStackTrace(System.err);
126 }
127
128 public void printStackTrace(PrintStream ps) {
129 synchronized (ps) {
130 ps.print(mMessagePrefix);
131 ps.print(": ");
132 mCause.printStackTrace(ps);
133 }
134 }
135
136 public void printStackTrace(PrintWriter pw) {
137 synchronized (pw) {
138 pw.print(mMessagePrefix);
139 pw.print(": ");
140 mCause.printStackTrace(pw);
141 }
142 }
143 }