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Author Topic: Arduino + java addeventlissener issue  (Read 962 times)
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Hey,
I'm followed/copypasted this arduino tutorial about java http://www.arduino.cc/playground/Interfacing/Java

I setted everthing right for my system(the port and my classname is different) but I'm getting a error on the line:
serialPort.addEventListener(this); //line 69

I'm getting this error in netbeans

method addEventListener in class gnu.io.SerialPort cannot be applied to given types;
required: gnu.io.SerialPortEventListener
found: serial.reader.SerialReader
reason: actual argument serial.reader.SerialReader cannot be converted to gnu.io.SerialPortEventListener by method invocation conversion
                         
the code I have right now is
Code:
package serial.reader;

import java.io.InputStream;
import java.io.OutputStream;
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
import java.util.Enumeration;


public class SerialReader {
    SerialPort serialPort;
   
    private static final String PORT_NAMES[] = {
"/dev/tty.usbmodemfa131", // Mac OS X
"/dev/ttyUSB0", // Linux
"COM3", // Windows
};
    /** Buffered input stream from the port */
private InputStream input;
/** The output stream to the port */
private OutputStream output;
/** Milliseconds to block while waiting for port open */
private static final int TIME_OUT = 2000;
/** Default bits per second for COM port. */
private static final int DATA_RATE = 9600;
    /**
     * @param args the command line arguments
     */
        public void initialize() {
CommPortIdentifier portId = null;
Enumeration portEnum = CommPortIdentifier.getPortIdentifiers();

// iterate through, looking for the port
while (portEnum.hasMoreElements()) {
CommPortIdentifier currPortId = (CommPortIdentifier) portEnum.nextElement();
for (String portName : PORT_NAMES) {
if (currPortId.getName().equals(portName)) {
portId = currPortId;
break;
}
}
}

if (portId == null) {
System.out.println("Could not find COM port.");
return;
}

try {
// open serial port, and use class name for the appName.
serialPort = (SerialPort) portId.open(this.getClass().getName(),
TIME_OUT);

// set port parameters
serialPort.setSerialPortParams(DATA_RATE,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);

// open the streams
input = serialPort.getInputStream();
output = serialPort.getOutputStream();

// add event listeners
                       
                        //Getting error on this line,
serialPort.addEventListener(this);
                       
                 
                        /*
                         * method addEventListener in class gnu.io.SerialPort cannot be applied to given types;
                         * required: gnu.io.SerialPortEventListener
                         * found: serial.reader.SerialReader
                         * reason: actual argument serial.reader.SerialReader cannot be converted to gnu.io.SerialPortEventListener by method invocation conversion
                         */
                       
 
                       
                       
serialPort.notifyOnDataAvailable(true);
} catch (Exception e) {
System.err.println(e.toString());
}
}

/**
* This should be called when you stop using the port.
* This will prevent port locking on platforms like Linux.
*/
public synchronized void close() {
if (serialPort != null) {
serialPort.removeEventListener();
serialPort.close();
}
}

/**
* Handle an event on the serial port. Read the data and print it.
*/
public synchronized void serialEvent(SerialPortEvent oEvent) {
if (oEvent.getEventType() == SerialPortEvent.DATA_AVAILABLE) {
try {
int available = input.available();
byte chunk[] = new byte[available];
input.read(chunk, 0, available);

// Displayed results are codepage dependent
System.out.print(new String(chunk));
} catch (Exception e) {
System.err.println(e.toString());
}
}
// Ignore all the other eventTypes, but you should consider the other ones.
}

public static void main(String[] args) throws Exception {
SerialReader main = new SerialReader();
               
main.initialize();
System.out.println("Started");
}
}

I don't have any super java powers (yet)
kind off beginner with java
I'm using netbeans on a Mac OSX 10.7.2 (OSX Lion)

can someone tell me whats wrong with this line and how I can fix it?
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