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import gnu.io.CommPort;
import gnu.io.CommPortIdentifier;
import gnu.io.NoSuchPortException;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
 
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
 
public class COMListener {
 
	//private int rate=9600;
	public int etatPort;	// 1 port en attente, 2 transmission, sinon pas detecté
	private CommPort commPort;
	public COMListener() {
		super();
	}
 
	void connect(String portName) throws Exception {
 
		try{
			CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(portName);
 
		if (portIdentifier.isCurrentlyOwned()) {
			System.out.println("Erreur: Port déja en cours d'utilisation");
		} else {
			commPort = portIdentifier.open(this.getClass().getName(),2000);
			System.out.println("port détecté ! ");
 
			etatPort=1;
			System.out.println("etatport " +getEtatPort());
			if (commPort instanceof SerialPort) {
				SerialPort serialPort = (SerialPort) commPort;
				//serialPort.setSerialPortParams(57600, SerialPort.DATABITS_8,SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
				serialPort.setSerialPortParams(9600, SerialPort.DATABITS_8,SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
				//serialPort.setSerialPortParams(rate, SerialPort.DATABITS_8,SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
 
 
				InputStream in = serialPort.getInputStream();
				OutputStream out = serialPort.getOutputStream();
 
				(new Thread(new SerialReader(in))).start();
				(new Thread(new SerialWriter(out))).start();	
				System.out.println("Mot ecrit");
			} else {
				System.out.println("Erreur: Seuls les ports série sont utilisés");
 
			}
 
		}
 
		}catch(NoSuchPortException ex){
			System.out.println("Pas de port détecté ! ");
 
		}
		catch(PortInUseException e1){
			System.out.println("Erreur: Port déja en cours d'utilisation dans un autre programme");
 
 
		}
 
	}
 
	/** */
	public static class SerialReader implements Runnable {
		InputStream in;
 
		public SerialReader(InputStream in) {
			this.in = in;
		}
 
 
 
		public void run() {
			PrintWriter out = null;
			byte[] buffer = new byte[8];
			int len = -1;
			try {
				out = new PrintWriter(new BufferedWriter(new FileWriter(
						"fichiers/test.txt",true)));
 
				while ((len = this.in.read(buffer)) > -1) {
					String next=new String(buffer,0,len);
					System.out.print(next);
					out.print(next);
					out.flush();
				}
		//	out.newLine();			//saut de ligne
 
				System.out.println(out);
			} catch (IOException e) {
				if (out != null)
					out.close();
				e.printStackTrace();
			}
		}
	}
 
	/** */
	public static class SerialWriter implements Runnable {
		OutputStream out;
 
		public SerialWriter(OutputStream out) {
			this.out = out;
		}
 
		public void run() {
			try {
				int c = 0;
				while ((c = System.in.read()) > -1) {
					this.out.write(c);
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
 
	 public int getEtatPort() {
         return etatPort;
 }
	 public void fermerPort(){
		 commPort.close();
	 }
 
 
 
} | 
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