From owner-freebsd-java  Thu Jan 16  1:53: 2 2003
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Date: Thu, 16 Jan 2003 17:55:36 +0800
From: Suken Woo <wsk@mail.gddsn.org.cn>
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To: java@freebsd.org
Subject: jdk1.3.1 bug?
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hi,hacks:
when running the following java prog, jdk1.3.1's EventListener seams
just listened
the reverse responsed event.if u move the mouse and press any keys , the
program will
play sounds normally,until u stopped the mouse or keyboad input
event.but things would
not occur under jdk1.4.
in faintting


--the src
import java.net.URL;
import java.net.MalformedURLException;
import java.util.Date;
import javax.sound.sampled.*;

import javax.swing.JOptionPane;

import cn.gd.seismology.rts.event.*;


class RtsAlarmThread extends Thread implements AlarmEventListener,
LineListener{
public static final String cvsid = "$Id: RtsAlarmThread.java,v 1.1
2002/12/31 10:41:32 hwh Exp $";
Clip clip = null;
AudioClip audioClip;
URL completeURL;
boolean looping = false;

long alarmTime;
String event_id = "";

public RtsAlarmThread( URL baseURL, boolean looping) {
this.completeURL = baseURL;
this.looping = looping;
this.setName("RtsAlarmThread");
setPriority(MIN_PRIORITY);
start();
}

public RtsAlarmThread( URL baseURL ) {
this( baseURL,false );
}

public void alarmEventHandler(AlarmEvent e) {

}

public void run() {
try {
AudioInputStream ais = AudioSystem.getAudioInputStream(completeURL);
AudioFormat format = ais.getFormat();

/**
* we can't yet open the device for ALAW/ULAW playback,
* convert ALAW/ULAW to PCM
*/
if ((format.getEncoding() == AudioFormat.Encoding.ULAW) ||
(format.getEncoding() == AudioFormat.Encoding.ALAW)) {
AudioFormat tmp = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
format.getSampleRate(),
format.getSampleSizeInBits() * 2,
format.getChannels(),
format.getFrameSize() * 2,
format.getFrameRate(),
true);
ais = AudioSystem.getAudioInputStream(tmp, ais);
format = tmp;
}

DataLine.Info info = new DataLine.Info( Clip.class, format,
(int)(ais.getFrameLength()* format.getFrameSize()));
clip = (Clip)AudioSystem.getLine(info);
Thread.sleep(1000);
clip.open(ais);
clip.addLineListener(this);
if (looping) {
clip.loop(Clip.LOOP_CONTINUOUSLY);
}
else {
clip.start();//Clip.LOOP_CONTINUOUSLY);
}
JOptionPane.showMessageDialog(null,event_id +" alarm at "+ new
Date(alarmTime),"Event Alarm", JOptionPane.OK_OPTION);
clip.stop();
clip.close();
}
catch(Exception ex) {
ex.printStackTrace();
}
System.exit(0);
}
public void update(LineEvent event) {
if (event.getType() != LineEvent.Type.STOP ) {
System.err.println("Hello");
}
}

public static void main(String[] args) {
URL codeBase = null;
try {
codeBase = new
URL("file:/usr/local/jdk1.3.1/demo/sound/media/spacemusic.au");
} catch (MalformedURLException e) {
System.err.println(e.getMessage());
}

RtsAlarmThread t = new RtsAlarmThread(codeBase, true);
}
}



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