it.tidalwave.mobile.android.media.AndroidMediaPlayer Maven / Gradle / Ivy

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/***********************************************************************************************************************
 *
 * blueBill Mobile - open source birdwatching
 * ==========================================
 *
 * Copyright (C) 2009, 2010 by Tidalwave s.a.s. (http://www.tidalwave.it)
 * http://bluebill.tidalwave.it/mobile/
 *
 ***********************************************************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 *
 ***********************************************************************************************************************
 *
 * $Id: AndroidMediaPlayer.java,v a52511a71d18 2010/06/26 12:40:42 fabrizio $
 *
 **********************************************************************************************************************/
package it.tidalwave.mobile.android.media;

import javax.annotation.Nonnull;
import java.util.ArrayList;
import java.util.IdentityHashMap;
import java.util.Map;
import java.io.IOException;
import it.tidalwave.util.logging.Logger;
import it.tidalwave.netbeans.util.Locator;
import it.tidalwave.mobile.media.Media;
import static it.tidalwave.mobile.util.Downloadable.Downloadable;
import android.content.Context;
import android.media.MediaPlayer;
import android.net.Uri;
import it.tidalwave.mobile.android.media.impl.AndroidMediaPlayerController;

/***********************************************************************************************************************
 *
 * @author  Fabrizio Giudici
 * @version $Id: $
 *
 **********************************************************************************************************************/
public class AndroidMediaPlayer implements it.tidalwave.mobile.media.MediaPlayer
  {
    private static final String CLASS = AndroidMediaPlayer.class.getName();
    private static final Logger logger = Logger.getLogger(CLASS);

    private final Map playerMapByMedia = new IdentityHashMap();

    @Nonnull
    private final Context context = Locator.find(Context.class);

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    @Nonnull
    public Controller play (final @Nonnull Media media)
      throws IOException
      {
        logger.info("play(%s)", media);

        MediaPlayer oldPlayer = null;
        MediaPlayer newPlayer = null;

        synchronized (this)
          {
            oldPlayer = playerMapByMedia.remove(media);
            final Uri uri = Uri.fromFile(media.as(Downloadable).getFile());
            newPlayer = MediaPlayer.create(context, uri);

            logger.info(">>>> created %s for %s", newPlayer, uri);

            if (newPlayer == null) // sometimes it happens
              {
                dispose(oldPlayer);
                throw new IOException("MediaPlayer.create() failed for " + uri);
              }

            playerMapByMedia.put(media, newPlayer);
          }

        dispose(oldPlayer);
        newPlayer.start(); // prepare() already done by create()
        
        return new AndroidMediaPlayerController(newPlayer);
      }

    /*******************************************************************************************************************
     *
     * 
     *
     ******************************************************************************************************************/
    private void stop (final @Nonnull Media media)
      {
        logger.info("stop(%s)", media);
        MediaPlayer oldPlayer = null;

        synchronized (this)
          {
            oldPlayer = playerMapByMedia.remove(media);
          }

        dispose(oldPlayer);
      }

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    public void stop()
      {
        logger.info("stop()");
        for (final Media media : new ArrayList(playerMapByMedia.keySet()))
          {
            stop(media);
          }
      }

    /*******************************************************************************************************************
     *
     *
     ******************************************************************************************************************/
    private void dispose (final @Nonnull MediaPlayer oldPlayer)
      {
        if (oldPlayer != null)
          {
            logger.fine(">>>> stopping %s...", oldPlayer);

            try
              {
                oldPlayer.stop();
                oldPlayer.release();
              }
            catch (IllegalStateException e)
              {
                logger.warning("While disposing ", e);
                logger.throwing("dispose()", CLASS, e);
              }
          }
      }
  }