1 | /* |
2 | Copyright (C) 2002-2004 MySQL AB |
3 | |
4 | This program is free software; you can redistribute it and/or modify |
5 | it under the terms of version 2 of the GNU General Public License as |
6 | published by the Free Software Foundation. |
7 | |
8 | There are special exceptions to the terms and conditions of the GPL |
9 | as it is applied to this software. View the full text of the |
10 | exception in file EXCEPTIONS-CONNECTOR-J in the directory of this |
11 | software distribution. |
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 program; if not, write to the Free Software |
20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
21 | |
22 | |
23 | |
24 | */ |
25 | package com.mysql.jdbc; |
26 | |
27 | import java.io.IOException; |
28 | import java.io.InputStream; |
29 | import java.io.OutputStream; |
30 | import java.io.RandomAccessFile; |
31 | |
32 | import java.net.Socket; |
33 | import java.net.SocketException; |
34 | |
35 | import java.util.Properties; |
36 | |
37 | /** |
38 | * A socket factory for named pipes (on Windows) |
39 | * |
40 | * @author Mark Matthews |
41 | */ |
42 | public class NamedPipeSocketFactory implements SocketFactory { |
43 | /** |
44 | * A socket that encapsulates named pipes on Windows |
45 | */ |
46 | class NamedPipeSocket extends Socket { |
47 | private boolean isClosed = false; |
48 | |
49 | private RandomAccessFile namedPipeFile; |
50 | |
51 | NamedPipeSocket(String filePath) throws IOException { |
52 | if ((filePath == null) || (filePath.length() == 0)) { |
53 | throw new IOException(Messages |
54 | .getString("NamedPipeSocketFactory.4")); //$NON-NLS-1$ |
55 | } |
56 | |
57 | this.namedPipeFile = new RandomAccessFile(filePath, "rw"); //$NON-NLS-1$ |
58 | } |
59 | |
60 | /** |
61 | * @see java.net.Socket#close() |
62 | */ |
63 | public synchronized void close() throws IOException { |
64 | this.namedPipeFile.close(); |
65 | this.isClosed = true; |
66 | } |
67 | |
68 | /** |
69 | * @see java.net.Socket#getInputStream() |
70 | */ |
71 | public InputStream getInputStream() throws IOException { |
72 | return new RandomAccessFileInputStream(this.namedPipeFile); |
73 | } |
74 | |
75 | /** |
76 | * @see java.net.Socket#getOutputStream() |
77 | */ |
78 | public OutputStream getOutputStream() throws IOException { |
79 | return new RandomAccessFileOutputStream(this.namedPipeFile); |
80 | } |
81 | |
82 | /** |
83 | * @see java.net.Socket#isClosed() |
84 | */ |
85 | public boolean isClosed() { |
86 | return this.isClosed; |
87 | } |
88 | } |
89 | |
90 | /** |
91 | * Enables OutputStream-type functionality for a RandomAccessFile |
92 | */ |
93 | class RandomAccessFileInputStream extends InputStream { |
94 | RandomAccessFile raFile; |
95 | |
96 | RandomAccessFileInputStream(RandomAccessFile file) { |
97 | this.raFile = file; |
98 | } |
99 | |
100 | /** |
101 | * @see java.io.InputStream#available() |
102 | */ |
103 | public int available() throws IOException { |
104 | return -1; |
105 | } |
106 | |
107 | /** |
108 | * @see java.io.InputStream#close() |
109 | */ |
110 | public void close() throws IOException { |
111 | this.raFile.close(); |
112 | } |
113 | |
114 | /** |
115 | * @see java.io.InputStream#read() |
116 | */ |
117 | public int read() throws IOException { |
118 | return this.raFile.read(); |
119 | } |
120 | |
121 | /** |
122 | * @see java.io.InputStream#read(byte[]) |
123 | */ |
124 | public int read(byte[] b) throws IOException { |
125 | return this.raFile.read(b); |
126 | } |
127 | |
128 | /** |
129 | * @see java.io.InputStream#read(byte[], int, int) |
130 | */ |
131 | public int read(byte[] b, int off, int len) throws IOException { |
132 | return this.raFile.read(b, off, len); |
133 | } |
134 | } |
135 | |
136 | /** |
137 | * Enables OutputStream-type functionality for a RandomAccessFile |
138 | */ |
139 | class RandomAccessFileOutputStream extends OutputStream { |
140 | RandomAccessFile raFile; |
141 | |
142 | RandomAccessFileOutputStream(RandomAccessFile file) { |
143 | this.raFile = file; |
144 | } |
145 | |
146 | /** |
147 | * @see java.io.OutputStream#close() |
148 | */ |
149 | public void close() throws IOException { |
150 | this.raFile.close(); |
151 | } |
152 | |
153 | /** |
154 | * @see java.io.OutputStream#write(byte[]) |
155 | */ |
156 | public void write(byte[] b) throws IOException { |
157 | this.raFile.write(b); |
158 | } |
159 | |
160 | /** |
161 | * @see java.io.OutputStream#write(byte[], int, int) |
162 | */ |
163 | public void write(byte[] b, int off, int len) throws IOException { |
164 | this.raFile.write(b, off, len); |
165 | } |
166 | |
167 | /** |
168 | * @see java.io.OutputStream#write(int) |
169 | */ |
170 | public void write(int b) throws IOException { |
171 | } |
172 | } |
173 | |
174 | private static final String NAMED_PIPE_PROP_NAME = "namedPipePath"; //$NON-NLS-1$ |
175 | |
176 | private Socket namedPipeSocket; |
177 | |
178 | /** |
179 | * Constructor for NamedPipeSocketFactory. |
180 | */ |
181 | public NamedPipeSocketFactory() { |
182 | super(); |
183 | } |
184 | |
185 | /** |
186 | * @see com.mysql.jdbc.SocketFactory#afterHandshake() |
187 | */ |
188 | public Socket afterHandshake() throws SocketException, IOException { |
189 | return this.namedPipeSocket; |
190 | } |
191 | |
192 | /** |
193 | * @see com.mysql.jdbc.SocketFactory#beforeHandshake() |
194 | */ |
195 | public Socket beforeHandshake() throws SocketException, IOException { |
196 | return this.namedPipeSocket; |
197 | } |
198 | |
199 | /** |
200 | * @see com.mysql.jdbc.SocketFactory#connect(String, Properties) |
201 | */ |
202 | public Socket connect(String host, int portNumber /* ignored */, |
203 | Properties props) throws SocketException, IOException { |
204 | String namedPipePath = props.getProperty(NAMED_PIPE_PROP_NAME); |
205 | |
206 | if (namedPipePath == null) { |
207 | namedPipePath = "\\\\.\\pipe\\MySQL"; //$NON-NLS-1$ |
208 | } else if (namedPipePath.length() == 0) { |
209 | throw new SocketException(Messages |
210 | .getString("NamedPipeSocketFactory.2") //$NON-NLS-1$ |
211 | + NAMED_PIPE_PROP_NAME |
212 | + Messages.getString("NamedPipeSocketFactory.3")); //$NON-NLS-1$ |
213 | } |
214 | |
215 | this.namedPipeSocket = new NamedPipeSocket(namedPipePath); |
216 | |
217 | return this.namedPipeSocket; |
218 | } |
219 | } |