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package sources;

/**
 *
 * @author jc
 */
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 SerialTest implements SerialPortEventListener {
	SerialPort serialPort;
        /** The port we're normally going to use. */
	private static final String PORT_NAMES[] = {
			"/dev/tty.usbserial-A9007UX1", // Mac OS X
			//"/dev/ttyUSB0", // Linux
                        "/dev/ttyACM0", //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;

	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
			//serialPort.addEventListener(this);
			//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 {
		SerialTest main = new SerialTest();
		main.initialize();
		System.out.println("Started");
		
		main.output.write('a');
          
		
          /*      while(true){
                    while(main.input.available()>0) {
                        System.out.print((char)( main.input.read()));
                    }
                }*/
		
		main.close();
	}

	@Override
	public void serialEvent(SerialPortEvent arg0) {
		// TODO Auto-generated method stub
		
	}
}