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package sound;

import java.io.File;
import java.io.IOException;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;

//Java program to play audio files. imports file scanning and various 
//methods from the java audio class in order to do so.
public class ShortAudioPlayer implements LineListener
{
    //indicates whether the playback completes or not
    boolean playCompleted;
    Clip audioClip;
    
    public void play(String audioFilePath)
    {
        File audioFile = new File(audioFilePath);
        
        try
        {
            //creates an audioInput object using the file we
            //declared earlier
            AudioInputStream audioStream = AudioSystem.getAudioInputStream(audioFile);
            
            //gets the format of the audioStream object
            AudioFormat format = audioStream.getFormat();
            
            DataLine.Info info = new DataLine.Info(Clip.class, format);
            
            audioClip = (Clip) AudioSystem.getLine(info);

            audioClip.addLineListener(this);

            audioClip.open(audioStream);
            
            audioClip.start();
        }
        catch (UnsupportedAudioFileException ex) 
        {
            System.out.println("The specified audio file is not supported.");
            ex.printStackTrace();
        }
        catch (LineUnavailableException ex) 
        {
            System.out.println("Audio line for playing back is unavailable.");
            ex.printStackTrace();
        } 
        catch (IOException ex) 
        {
            System.out.println("Error playing the audio file.");
            ex.printStackTrace();
        }
    }
    
    
    /**
     * Listens to the START and STOP events of the audio line.
     */
    @Override
    public void update(LineEvent event)
    {
        //something should prolly go here
    }   
}