DMDirc-Plugins/audio/src/main/java/com/dmdirc/addons/audio/AudioPlayer.java

/*
 * Copyright (c) 2006-2017 DMDirc Developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
 * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.dmdirc.addons.audio;

import java.applet.Applet;
import java.applet.AudioClip;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;

import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.UnsupportedAudioFileException;

/**
 * The AudioPlayer handles the playing of the audio
 */
public final class AudioPlayer implements Runnable {

    /** The AudioType enum */
    public enum AudioType {

        WAV, INVALID

    }
    /** The file object of the file to play */
    final File myFile;

    /**
     * Create the AudioPlayer
     *
     * @param file The file to play
     */
    public AudioPlayer(final File file) {
        myFile = file;
    }

    /**
     * Play this AudioPlayer.
     */
    public void play() {
        new Thread(this).start();
    }

    /**
     * Run this AudioPlayer (Should not be invoked directly).
     */
    @Override
    public void run() {
        final AudioType type = getAudioType(myFile);
        switch (type) {
            case WAV:
                playWav();
                break;
            default:
                break;
        }
    }

    /**
     * Check if this File is a supported file type
     *
     * @param file the File to check
     *
     * @return true if playable, else false.
     */
    public static boolean isValid(final File file) {
        final AudioType type = getAudioType(file);
        return type != AudioType.INVALID;
    }

    /**
     * Get the AudioType of a given file
     *
     * @param file the File to check
     *
     * @return AudioType for this file.
     */
    public static AudioType getAudioType(final File file) {
        try (AudioInputStream unused = AudioSystem.getAudioInputStream(file)) {
            return AudioType.WAV;
        } catch (UnsupportedAudioFileException | IOException e) {
            return AudioType.INVALID;
        }
    }

    /**
     * Play the file as a wav file, using the Applet class. (This code seems to work better than the
     * non-applet version, but can't play streams)
     */
    private void playWav() {
        try {
            final AudioClip ac = Applet.newAudioClip(myFile.toURI().toURL());
            if (ac != null) {
                ac.play();
            }
        } catch (MalformedURLException e) {
        }
    }

}