Subversion Repositories svnkaklik

/*

    AVRcamVIEW: A PC application to test out the functionallity of the

     AVRcam real-time image processing engine.

    Copyright (C) 2004    Brent A. Taylor

    This program is free software; you can redistribute it and/or

    modify it under the terms of the GNU General Public

    License as published by the Free Software Foundation; either

    version 2 of the License, or (at your option) any later version.

    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

   For more information on the AVRcamVIEW, please contact:

   taylorba@comcast.net

   or go to www.jrobot.net for more details regarding the system.

*/

package avr.connection;

import java.io.*;

import java.net.*;

import java.nio.*;

import java.nio.channels.*;

import java.util.*;

import javax.comm.*;

/***********************************************************************

 * This class represents a Connection to a Serial Port.

 */

public class SerialConnection extends AbstractConnection {

   private SerialPort serialPort;

   private SerialParams params;

   private String comPort;

   public static String[] getSerialPorts() {

      ArrayList ports = new ArrayList();

      Enumeration allPorts = CommPortIdentifier.getPortIdentifiers();

      CommPortIdentifier identifier;

      while(allPorts.hasMoreElements()) {

         identifier = (CommPortIdentifier)allPorts.nextElement();

         if(identifier.getPortType() == CommPortIdentifier.PORT_SERIAL) {

            ports.add(identifier.getName());

         }

      }

      Collections.reverse(ports);

      return (String[])ports.toArray(new String[ports.size()]);

   }

   public SerialConnection(String comPort) {

      this(comPort, new SerialParams());

   }

   public SerialConnection(String comPort, SerialParams params) {

      this.comPort = comPort;

      this.params = params;

   }

   public Object getConnectionObject() {

      return serialPort;

   }

   public synchronized void connect() throws Exception {

      CommPortIdentifier identifier = CommPortIdentifier.getPortIdentifier(comPort);

      serialPort = (SerialPort)identifier.open("AVRcamView", 2000);

      serialPort.setFlowControlMode(params.getFlowControl());

      serialPort.setSerialPortParams(params.getBaudRate(),

                                     params.getDataBits(),

                                     params.getStopBits(),

                                     params.getParity());

      setConnected();

   }

   public synchronized void disconnect() throws IOException {

      serialPort.close();

      setDisconnected();

   }

   public InputStream getInputStream() throws IOException {

      return serialPort.getInputStream();

   }

   public OutputStream getOutputStream() throws IOException {

      return serialPort.getOutputStream();

   }

   public ByteChannel getChannel() {

      return null;

   }

   public String toString() {

      return serialPort.toString();

   }

   public void setSerialParams(SerialParams params) throws UnsupportedCommOperationException {

      serialPort.setFlowControlMode(params.getFlowControl());

      serialPort.setSerialPortParams(params.getBaudRate(),

                                     params.getDataBits(),

                                     params.getStopBits(),

                                     params.getParity());

      this.params = params;

   }

   public String getComPort() {

      return comPort;

   }

   public SerialParams getSerialParams() {

      return params;

   }

}