JLayerPausableTest

/* *-----------------------------------------------------------------------
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License as published
 *   by the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *   Original by: http://thiscouldbebetter.wordpress.com/2011/07/04/pausing-an-mp3-file-using-jlayer/
 *   Last modified: 21-jul-2012 by Arthur Assuncao
 *----------------------------------------------------------------------
 */

import java.awt.Dimension;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

import javazoom.jl.decoder.JavaLayerException;

//need JLayerPlayerPausable class
public class JLayerPausableTest{
    private SoundJLayer soundToPlay;

    public static void main(String[] args){
        JLayerPausableTest jLayerPausable = new JLayerPausableTest();
        jLayerPausable.soundToPlay = new SoundJLayer("temp.mp3");

        JLayerPausableTest.interfaceGrafica(jLayerPausable);
    }

    //test only
    public static void interfaceGrafica(JLayerPausableTest jLayerPausable){
        JFrame frame = new JFrame("Test JlayerPlayerPausable");

        JButton buttonPlay = new JButton("Play");
        JButton buttonPause = new JButton("Pause");
        JButton buttonStop = new JButton("Stop");
        JPanel panel = new JPanel(new GridBagLayout());

        panel.add(buttonPlay);
        panel.add(buttonPause);
        panel.add(buttonStop);

        buttonPlay.addActionListener(new ButtonListener(jLayerPausable));
        buttonPause.addActionListener(new ButtonListener(jLayerPausable));
        buttonStop.addActionListener(new ButtonListener(jLayerPausable));

        frame.add(panel);

        frame.setPreferredSize(new Dimension(200, 100));
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setLocationRelativeTo(null);

        frame.setVisible(true);
    }

    public static class ButtonListener implements ActionListener{
        JLayerPausableTest jLayerPausable;
        public ButtonListener(JLayerPausableTest jLayerPausable){
            this.jLayerPausable = jLayerPausable;
        }
        @Override
        public void actionPerformed(ActionEvent evento) {
            JButton botao = (JButton)evento.getSource();
            if(botao.getText().equalsIgnoreCase("PLAY")){
                this.jLayerPausable.soundToPlay.play();
            }
            else if(botao.getText().equalsIgnoreCase("PAUSE")){
                this.jLayerPausable.soundToPlay.pauseToggle();
            }
            else if(botao.getText().equalsIgnoreCase("STOP")){
                this.jLayerPausable.soundToPlay.stop();
            }
        }
    }

}

class SoundJLayer implements Runnable{
    private String filePath;
    private JLayerPlayerPausable player;
    private Thread playerThread;
    private String namePlayerThread = "AudioPlayerThread";
    private PlaybackListener playbackListener = new PlaybackListener();

    public SoundJLayer(String filePath){
        this.filePath = filePath;
    }

    public SoundJLayer(String filePath, String namePlayerThread){
        this.filePath = filePath;
        this.namePlayerThread = namePlayerThread;
    }

    public void play(){
        if (this.player == null){
            this.playerInitialize();
        }
        else if(!this.player.isPaused() || this.player.isComplete() || this.player.isStopped()){
            this.stop();
            this.playerInitialize();
        }
        this.playerThread = new Thread(this, namePlayerThread);
        this.playerThread.setDaemon(true);

        this.playerThread.start();
    }

    public void pause(){
        if (this.player != null){
            this.player.pause();

            if(this.playerThread != null){
                //this.playerThread.stop(); //unsafe method
                this.playerThread = null;
            }
        }
    }

    public void pauseToggle(){
        if (this.player != null){
            if (this.player.isPaused() && !this.player.isStopped()){
                this.play();
            }
            else{
                this.pause();
            }
        }
    }

    public void stop(){
        if (this.player != null){
            this.player.stop();

            if(this.playerThread != null){
                //this.playerThread.stop(); //unsafe method
                this.playerThread = null;
            }
        }
    }

    /*private void playerInitialize(){
        try{
            String urlAsString =
                    "file:///"
                            + new java.io.File(".").getCanonicalPath()
                            + "/"
                            + this.filePath;

            this.player = new JLayerPlayerPausable(new java.net.URL(urlAsString));
            this.player.setPlaybackListener(this.playbackListener);
        }
        catch (JavaLayerException e){
            e.printStackTrace();
        }
    }*/
    private void playerInitialize(){
        try {
            this.player = new JLayerPlayerPausable(this.filePath);
            this.player.setPlaybackListener(this.playbackListener);
        }
        catch (JavaLayerException e) {
            e.printStackTrace();
        }
    }

    // IRunnable members
    public void run(){
        try{
            this.player.resume();
        }
        catch (javazoom.jl.decoder.JavaLayerException ex){
            ex.printStackTrace();
        }
    }

    private static class PlaybackListener extends JLayerPlayerPausable.PlaybackAdapter {
        // PlaybackListener members
        @Override
        public void playbackStarted(JLayerPlayerPausable.PlaybackEvent playbackEvent){
            System.err.println("PlaybackStarted()");
        }

        @Override
        public void playbackPaused(JLayerPlayerPausable.PlaybackEvent playbackEvent){
            System.err.println("PlaybackPaused()");
        }

        @Override
        public void playbackFinished(JLayerPlayerPausable.PlaybackEvent playbackEvent){
            System.err.println("PlaybackStopped()");
        }
    }
}