/*************************************************************************
 *  Compilation:  javac -classpath .:jl1.0.jar MP3.java         (OS X)
 *                javac -classpath .;jl1.0.jar MP3.java         (Windows)
 *  Execution:    java -classpath .:jl1.0.jar MP3 filename.mp3  (OS X / Linux)
 *                java -classpath .;jl1.0.jar MP3 filename.mp3  (Windows)
 *  
 *  Plays an MP3 file using the JLayer MP3 library.
 *
 *  Reference:  http://www.javazoom.net/javalayer/sources.html
 *
 *  To execute, get the file jl1.0.jar from the above Web site and put
 *  it in your working directory with this (or an equivalent) file.
 *
 *************************************************************************/

import java.io.BufferedInputStream;
import java.io.FileInputStream;

// For the following 'import' line to work, the file jl1.0.jar (included with
//  this class file) must be added to the current working directory (classpath)
import javazoom.jl.player.Player;

public class SoundPlayStopWithMP3
{
	private String filename;
	private Player player;

	// Note that this 'main' method is part of this class for demonstration
	//  purposes only; an instance of this MP3 player class would normally
	//  be called from a separate file
	public static void main(String[] args)
	{
		String filename = "data_files/musicboxdancer.mp3";
		SoundPlayStopWithMP3 mp3 = new SoundPlayStopWithMP3(filename);
		mp3.play();

		// Since the MP3 plays in the background, any additional code that
		//  follows the call to the 'play' method will execute IMMEDIATELY
		//  after the MP3 starts playing
		System.out.println("The MP3 has started playing.");
	}

	// Constructor that takes the name of an MP3 file
	public SoundPlayStopWithMP3(String filename)
	{
		this.filename = filename;
	}

	// Stop playing the MP3 file
	public void close()
	{
		if (player != null)
			player.close();
	}

	// Play the MP3 file through the computer's sound card
	public void play()
	{
		try
		{
			FileInputStream fis = new FileInputStream(filename);
			BufferedInputStream bis = new BufferedInputStream(fis);
			player = new Player(bis);
		}
		catch (Exception error)
		{
			System.out.println("ERROR:  " + error);
			return;
		}

		// Run the MP3 player in new thread to play in the background
		new Thread()
		{
			public void run()
			{
				try
				{
					player.play();

					// Since these next lines are located in the same thread
					//  where the MP3 is playing, they will not execute until
					//  the MP3 has FINISHED playing
					player.close();
					System.out.println("The MP3 has stopped playing.");
				}
				catch (Exception error)
				{
					System.out.println("ERROR:  " + error);
				}
			}
		}.start();
	}
}