Logo Search packages:      
Sourcecode: mysql-connector-java version File versions  Download package

NamedPipeSocketFactory.java

/*
 Copyright (C) 2002-2004 MySQL AB

 This program is free software; you can redistribute it and/or modify
 it under the terms of version 2 of the GNU General Public License as 
 published by the Free Software Foundation.

 There are special exceptions to the terms and conditions of the GPL 
 as it is applied to this software. View the full text of the 
 exception in file EXCEPTIONS-CONNECTOR-J in the directory of this 
 software distribution.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



 */
package com.mysql.jdbc;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.RandomAccessFile;

import java.net.Socket;
import java.net.SocketException;

import java.util.Properties;

/**
 * A socket factory for named pipes (on Windows)
 * 
 * @author Mark Matthews
 */
00042 public class NamedPipeSocketFactory implements SocketFactory {
      /**
       * A socket that encapsulates named pipes on Windows
       */
00046       class NamedPipeSocket extends Socket {
            private boolean isClosed = false;

            private RandomAccessFile namedPipeFile;

            NamedPipeSocket(String filePath) throws IOException {
                  if ((filePath == null) || (filePath.length() == 0)) {
                        throw new IOException(Messages
                                    .getString("NamedPipeSocketFactory.4")); //$NON-NLS-1$
                  }

                  this.namedPipeFile = new RandomAccessFile(filePath, "rw"); //$NON-NLS-1$
            }

            /**
             * @see java.net.Socket#close()
             */
00063             public synchronized void close() throws IOException {
                  this.namedPipeFile.close();
                  this.isClosed = true;
            }

            /**
             * @see java.net.Socket#getInputStream()
             */
00071             public InputStream getInputStream() throws IOException {
                  return new RandomAccessFileInputStream(this.namedPipeFile);
            }

            /**
             * @see java.net.Socket#getOutputStream()
             */
00078             public OutputStream getOutputStream() throws IOException {
                  return new RandomAccessFileOutputStream(this.namedPipeFile);
            }

            /**
             * @see java.net.Socket#isClosed()
             */
00085             public boolean isClosed() {
                  return this.isClosed;
            }
      }

      /**
       * Enables OutputStream-type functionality for a RandomAccessFile
       */
00093       class RandomAccessFileInputStream extends InputStream {
            RandomAccessFile raFile;

            RandomAccessFileInputStream(RandomAccessFile file) {
                  this.raFile = file;
            }

            /**
             * @see java.io.InputStream#available()
             */
00103             public int available() throws IOException {
                  return -1;
            }

            /**
             * @see java.io.InputStream#close()
             */
00110             public void close() throws IOException {
                  this.raFile.close();
            }

            /**
             * @see java.io.InputStream#read()
             */
00117             public int read() throws IOException {
                  return this.raFile.read();
            }

            /**
             * @see java.io.InputStream#read(byte[])
             */
00124             public int read(byte[] b) throws IOException {
                  return this.raFile.read(b);
            }

            /**
             * @see java.io.InputStream#read(byte[], int, int)
             */
00131             public int read(byte[] b, int off, int len) throws IOException {
                  return this.raFile.read(b, off, len);
            }
      }

      /**
       * Enables OutputStream-type functionality for a RandomAccessFile
       */
00139       class RandomAccessFileOutputStream extends OutputStream {
            RandomAccessFile raFile;

            RandomAccessFileOutputStream(RandomAccessFile file) {
                  this.raFile = file;
            }

            /**
             * @see java.io.OutputStream#close()
             */
00149             public void close() throws IOException {
                  this.raFile.close();
            }

            /**
             * @see java.io.OutputStream#write(byte[])
             */
00156             public void write(byte[] b) throws IOException {
                  this.raFile.write(b);
            }

            /**
             * @see java.io.OutputStream#write(byte[], int, int)
             */
00163             public void write(byte[] b, int off, int len) throws IOException {
                  this.raFile.write(b, off, len);
            }

            /**
             * @see java.io.OutputStream#write(int)
             */
00170             public void write(int b) throws IOException {
            }
      }

      private static final String NAMED_PIPE_PROP_NAME = "namedPipePath"; //$NON-NLS-1$

      private Socket namedPipeSocket;

      /**
       * Constructor for NamedPipeSocketFactory.
       */
00181       public NamedPipeSocketFactory() {
            super();
      }

      /**
       * @see com.mysql.jdbc.SocketFactory#afterHandshake()
       */
00188       public Socket afterHandshake() throws SocketException, IOException {
            return this.namedPipeSocket;
      }

      /**
       * @see com.mysql.jdbc.SocketFactory#beforeHandshake()
       */
00195       public Socket beforeHandshake() throws SocketException, IOException {
            return this.namedPipeSocket;
      }

      /**
       * @see com.mysql.jdbc.SocketFactory#connect(String, Properties)
       */
00202       public Socket connect(String host, int portNumber /* ignored */,
                  Properties props) throws SocketException, IOException {
            String namedPipePath = props.getProperty(NAMED_PIPE_PROP_NAME);

            if (namedPipePath == null) {
                  namedPipePath = "\\\\.\\pipe\\MySQL"; //$NON-NLS-1$
            } else if (namedPipePath.length() == 0) {
                  throw new SocketException(Messages
                              .getString("NamedPipeSocketFactory.2") //$NON-NLS-1$
                              + NAMED_PIPE_PROP_NAME
                              + Messages.getString("NamedPipeSocketFactory.3")); //$NON-NLS-1$
            }

            this.namedPipeSocket = new NamedPipeSocket(namedPipePath);

            return this.namedPipeSocket;
      }
}

Generated by  Doxygen 1.6.0   Back to index