| 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 | } |