net.dian1.player.service.DownloadService.java Source code

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Here is the source code for net.dian1.player.service.DownloadService.java

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/*
 * Copyright (C) 2009 Teleca Poland Sp. z o.o. <android@teleca.com>
 *
 * 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.
 */

package net.dian1.player.service;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.BitmapFactory;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.util.Log;

import net.dian1.player.Dian1Application;
import net.dian1.player.R;
import net.dian1.player.activity.DownloadActivity;
import net.dian1.player.activity.PlayerActivity;
import net.dian1.player.api.PlaylistEntry;
import net.dian1.player.download.DownloadHelper;
import net.dian1.player.download.DownloadJob;
import net.dian1.player.download.DownloadJobListener;
import net.dian1.player.download.DownloadProvider;
import net.dian1.player.download.MediaScannerNotifier;

import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

// TODO sd card listener
/**
 * Background download manager
 * 
 * @author Lukasz Wisniewski
 */
public class DownloadService extends Service {

    public static final String ACTION_ADD_TO_DOWNLOAD = "add_to_download";

    public static final String EXTRA_PLAYLIST_ENTRY = "playlist_entry";

    private static final int DOWNLOAD_NOTIFY_ID = 667668;

    private NotificationManager mNotificationManager = null;

    private DownloadProvider mDownloadProvider;

    private ExecutorService executorService = Executors.newCachedThreadPool();

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Log.i(Dian1Application.TAG, "DownloadService.onCreate");
        mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        mDownloadProvider = Dian1Application.getInstance().getDownloadManager().getProvider();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        super.onStartCommand(intent, flags, startId);

        if (intent == null) {
            return START_NOT_STICKY;
        }

        String action = intent.getAction();
        Log.i(Dian1Application.TAG, "DownloadService.onStart - " + action);

        if (action.equals(ACTION_ADD_TO_DOWNLOAD)) {
            PlaylistEntry entry = (PlaylistEntry) intent.getSerializableExtra(EXTRA_PLAYLIST_ENTRY);
            addToDownloadQueue(entry, startId);
        }
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.i(Dian1Application.TAG, "DownloadService.onDestroy");
    }

    private DownloadJobListener mDownloadJobListener = new DownloadJobListener() {

        @Override
        public void downloadEnded(DownloadJob job) {
            mDownloadProvider.downloadCompleted(job);
            if (job.getProgress() == 100) {
                displayNotifcation(job);
            }
            new MediaScannerNotifier(DownloadService.this, job);
        }

        @Override
        public void downloadStarted() {
        }

    };

    private void displayNotifcation(DownloadJob job) {
        String notificationMessage = job.getPlaylistEntry().getMusic().getName() + " - "
                + job.getPlaylistEntry().getAlbum().getArtistName();
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, DownloadActivity.class),
                0);
        Resources res = getResources();
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
        builder.setContentIntent(contentIntent).setSmallIcon(android.R.drawable.stat_sys_download_done)
                .setLargeIcon(BitmapFactory.decodeResource(res, android.R.drawable.stat_sys_download_done))
                .setTicker(notificationMessage).setWhen(System.currentTimeMillis()).setAutoCancel(true)
                .setContentTitle(getString(R.string.downloaded)).setContentText(notificationMessage);
        Notification notification = builder.build();
        notification.flags |= Notification.FLAG_ONLY_ALERT_ONCE;

        mNotificationManager.notify(DOWNLOAD_NOTIFY_ID, notification);
    }

    public void addToDownloadQueue(PlaylistEntry entry, int startId) {

        // check database if record already exists, if so abandon starting
        // another download process
        String downloadPath = DownloadHelper.getDownloadPath();
        String downloadFormat = Dian1Application.getInstance().getDownloadFormat();
        DownloadJob downloadJob = new DownloadJob(executorService, entry, downloadPath, startId, downloadFormat);

        if (mDownloadProvider.queueDownload(downloadJob)) {
            downloadJob.setListener(mDownloadJobListener);
            downloadJob.start();
        }
    }

    public void notifyScanCompleted() {
        if (mDownloadProvider.getQueuedDownloads().size() == 0) {
            stopSelf();
        }
    }
}