MusicPlayerIndividualTrackController.java

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package muvis.view.controllers;

import javazoom.jlgui.basicplayer.BasicPlayerException;
import muvis.Elements;
import muvis.Environment;
import muvis.audio.AudioMetadata;
import muvis.audio.MuVisAudioPlayer;
import muvis.util.Observable;
import muvis.util.Observer;

/**
 *
 * @author Ricardo
 */
public class MusicPlayerIndividualTrackController implements MusicPlayerControllerInterface, Observer {

    private int trackId;
    private boolean isPlaying;
    private boolean enabled;
    private MuVisAudioPlayer player;

    public MusicPlayerIndividualTrackController(){
        isPlaying = false;
        enabled = false;
        player = Environment.getEnvironmentInstance().getAudioPlayer();
        Environment.getEnvironmentInstance().getAudioPlayer().registerObserver(this);
    }

    public void setTrackId(int trackId){
        this.trackId = trackId;
    }

    @Override
    public AudioMetadata getTrackPlayingMetadata() {
        return Environment.getEnvironmentInstance().getDatabaseManager().getTrackMetadata(trackId);
    }

    @Override
    public void playNextTrack() {
        //no operation
    }

    @Override
    public void playPreviousTrack() {
        //no operation
    }

    @Override
    public void playTrack() {

        try {
            if (player.isPlaying()){
                player.stop();
            }
            player.play(Environment.getEnvironmentInstance().getDatabaseManager().getFilename(trackId));
            isPlaying = true;
        } catch (BasicPlayerException ex) {
            ex.printStackTrace();
        }
    }

    @Override
    public void pauseTrack() {
        try {
            player.pause();
            isPlaying = false;
        } catch (BasicPlayerException ex) {
            ex.printStackTrace();
        }
    }

    @Override
    public void setPlayerVolume(int value) throws BasicPlayerException {
        Environment.getEnvironmentInstance().getAudioPlayer().setVolume(value);
    }

    @Override
    public void stopTrack() {
        try {
            isPlaying = false;
            player.stop();
        } catch (BasicPlayerException ex) {
            ex.printStackTrace();
        } catch (Exception e){
            e.printStackTrace();
        }
    }

    @Override
    public void setEnable(boolean enabled) {
        this.enabled = enabled;
    }

    @Override
    public boolean isEnabled() {
        return enabled;
    }

    @Override
    public boolean isPlaying() {
        return isPlaying;
    }

    @Override
    public void update(Observable obs, Object arg) {
        if (enabled){
            if (obs instanceof MuVisAudioPlayer) {
                if (MuVisAudioPlayer.Event.STOPPED.equals(arg)) {
                }
            }
        }
    }

}