Hi,

I am trying to change the sound for 'Alerter.java' but if I do not use the 'sample.wav' file downloaded from here, I get the following error:

12:31:34 Strategy "Alerter" is stopped at 2011-05-31 12:31:34.009 GMT on the local computer with parameters "Alarm file"=[C:\Users\Username\Documents\JForex\Strategies\filename.wav]
12:31:34 javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input file @ com.dukascopy.jforex.Alerter.playSound(Alerter.java:180)

The filetype is a wav file, file permissions are the same as the sound file that works, but it will not work with any other sound file (only sample.wav).

Any help much appreciated. Many thanks.

It does work with other .wav files, consider a bit smaller IStrategy example which plays alert every 10 seconds:

package jforex.codebase.test;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.TimeZone;

import javax.sound.sampled.*;

import com.dukascopy.api.*;

@RequiresFullAccess
public class AlerterMini implements IStrategy {
   private IContext context;
   
   private Instrument instrument = Instrument.EURUSD;
   private Period period = Period.TEN_SECS;

   @Configurable("Alarm file 1")
   public File alarmFile1 = new File("C:\\temp\\duck.wav");
   
   @Configurable("Alarm file 2")
   public File alarmFile2 = new File("C:\\temp\\bird.wav");

   private SimpleDateFormat sdf;

   public void onAccount(IAccount account) throws JFException {
   }

   public void onMessage(IMessage message) throws JFException {
   }

   public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
      if (!this.period.equals(period) || !this.instrument.equals(instrument))
         return;
      print("play: " + sdf.format(bidBar.getTime()));
      playSound(alarmFile1);
   }

   public void onStart(IContext context) throws JFException {
      this.context = context;
      
      String DATE_FORMAT_NOW = "HH:mm:ss SSS"; //yyyy-MM-dd 
      sdf = new SimpleDateFormat(DATE_FORMAT_NOW);
      sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
      
      print("start");
      
      playSound(alarmFile2);
   }

   public void onStop() throws JFException {}

   public void onTick(Instrument instrument, ITick tick) throws JFException {   }


   private void playSound(File wavFile) throws JFException {
      try {
         AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(wavFile);
         AudioFormat af = audioInputStream.getFormat();
         int nSize = (int) (af.getFrameSize() * audioInputStream.getFrameLength());
         byte[] audio = new byte[nSize];
         DataLine.Info info = new DataLine.Info(Clip.class, af, nSize);
         audioInputStream.read(audio, 0, nSize);
         Clip clip = (Clip) AudioSystem.getLine(info);
         clip.open(af, audio, 0, nSize);
         clip.start();
      } catch (Exception e) {
         e.printStackTrace();
         print("errror on play: " + e.getMessage());
         //throw new JFException(e);
      }
   }
   
   private void print(Object o){
      context.getConsole().getOut().println(o);
   }
}

Find the example .wav files in attachments