br.ufrn.dimap.pubshare.download.service.DownloaderService.java Source code

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Here is the source code for br.ufrn.dimap.pubshare.download.service.DownloaderService.java

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/**
 *    This file is part of PubShare.
 *
 *    PubShare is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    PubShare is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with PubShare.  If not, see <http://www.gnu.org/licenses/>.
 */

package br.ufrn.dimap.pubshare.download.service;

import android.app.DownloadManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.DownloadManager.Request;
import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
import android.view.Gravity;
import android.widget.Toast;
import br.ufrn.dimap.pubshare.activity.R;
import br.ufrn.dimap.pubshare.domain.Article;
import br.ufrn.dimap.pubshare.domain.ArticleDownloaded;
import br.ufrn.dimap.pubshare.download.sqlite.DownloadDao;
import br.ufrn.dimap.pubshare.util.AndroidUtils;

/**
 * Service responsible for downloading articles from online libraries
 * 
 *   @author Lucas Farias de Oliveira <i>luksrn@gmail.com</i>
 * 
 */
public class DownloaderService extends IntentService {

    private static final String TAG = DownloaderService.class.getSimpleName();

    public DownloaderService() {
        super("DownloaderService");
    }

    /**
    * The IntentService calls this method from the default worker thread with
    * the intent that started the service. When this method returns, IntentService
    * stops the service, as appropriate.
    */
    @Override
    protected void onHandleIntent(Intent intent) {
        Log.d(TAG, "onHandleIntent on DownloadService");

        Article selectedArticle = (Article) intent.getSerializableExtra(Article.KEY_INSTANCE);

        if (!AndroidUtils.isExternalStorageAvailable()) {
            // Generate Menssages
            NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
                    .setSmallIcon(R.drawable.ic_menu_notifications)
                    .setContentTitle(getResources().getString(R.string.external_storage_unavailable))
                    .setContentText(getResources().getString(R.string.check_media_availability));
            Notification notification = mBuilder.build();
            // Set the Notification as ongoing
            notification.flags = notification.flags | Notification.FLAG_AUTO_CANCEL;

            NotificationManager nManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            nManager.notify(0, notification);
            return;
        }

        DownloadManager dowloadManager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE); // since API level 9

        Request request = new Request(Uri.parse(selectedArticle.getRemoteLocation()));
        request.setAllowedNetworkTypes(Request.NETWORK_WIFI | Request.NETWORK_MOBILE);
        request.setTitle(selectedArticle.getTitle());
        request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS,
                selectedArticle.generateFileName());
        request.setVisibleInDownloadsUi(true);

        long enqueue = dowloadManager.enqueue(request);

        Log.d(TAG, "Download enqueue..." + enqueue);

        ArticleDownloaded articleDownloaded = new ArticleDownloaded();
        articleDownloaded.setDownloadKey(enqueue);

        DownloadDao downloadDao = new DownloadDao(this);
        downloadDao.insert(articleDownloaded);

        Log.d(TAG, "Insert " + articleDownloaded + " in SqLite: OK");
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Toast toast = Toast.makeText(this, "Starting download. see action bar to see the progress.",
                Toast.LENGTH_SHORT);
        toast.setGravity(Gravity.BOTTOM | Gravity.CENTER, 0, 0);
        toast.show();
        return super.onStartCommand(intent, flags, startId);
    }
}