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/**
* Android ownCloud News
*
* @author David Luhmer
* @copyright 2013 David Luhmer david-dev@live.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
package de.luhmer.owncloudnewsreader.services;
import android.app.IntentService;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.support.v4.app.NotificationCompat;
import android.widget.Toast;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Random;
import de.greenrobot.dao.query.LazyList;
import de.luhmer.owncloudnewsreader.NewsReaderListActivity;
import de.luhmer.owncloudnewsreader.R;
import de.luhmer.owncloudnewsreader.async_tasks.GetImageThreaded;
import de.luhmer.owncloudnewsreader.database.DatabaseConnectionOrm;
import de.luhmer.owncloudnewsreader.database.model.Feed;
import de.luhmer.owncloudnewsreader.database.model.RssItem;
import de.luhmer.owncloudnewsreader.helper.FavIconHandler;
import de.luhmer.owncloudnewsreader.helper.ImageDownloadFinished;
import de.luhmer.owncloudnewsreader.helper.ImageHandler;
public class DownloadImagesService extends IntentService {
public static final String LAST_ITEM_ID = "LAST_ITEM_ID";
public static final String DOWNLOAD_FAVICONS_EXCLUSIVE = "DOWNLOAD_FAVICONS_EXCLUSIVE";
private static Random random;
private int NOTIFICATION_ID = 1;
private NotificationManager notificationManager;
private NotificationCompat.Builder mNotificationDownloadImages;
private int maxCount;
//private int total_size = 0;
List<String> linksToImages = new LinkedList<>();
public DownloadImagesService() {
super(null);
}
public DownloadImagesService(String name) {
super(name);
}
@Override
public void onCreate() {
super.onCreate();
try {
maxCount = 0;
if (random == null)
random = new Random();
NOTIFICATION_ID = random.nextInt();
} catch (Exception ex) {
ex.printStackTrace();
}
}
@Override
public void onDestroy() {
if(mNotificationDownloadImages != null)
{
if(maxCount == 0)
notificationManager.cancel(NOTIFICATION_ID);
}
super.onDestroy();
}
@Override
protected void onHandleIntent(Intent intent) {
boolean downloadFavIconsExclusive = intent.getBooleanExtra(DOWNLOAD_FAVICONS_EXCLUSIVE, false);
DatabaseConnectionOrm dbConn = new DatabaseConnectionOrm(this);
Notification notify = BuildNotification();
List<Feed> feedList = dbConn.getListOfFeeds();
FavIconHandler favIconHandler = new FavIconHandler(this);
for(Feed feed : feedList) {
favIconHandler.PreCacheFavIcon(feed);
}
if(!downloadFavIconsExclusive) {
long lastId = intent.getLongExtra(LAST_ITEM_ID, 0);
List<RssItem> rssItemList = dbConn.getAllItemsWithIdHigher(lastId);
List<String> links = new ArrayList<>();
for(RssItem rssItem : rssItemList) {
String body = rssItem.getBody();
links.addAll(ImageHandler.getImageLinksFromText(body));
if(links.size() > 10000) {
notificationManager.notify(123, GetNotificationLimitImagesReached(10000));
break;
}
}
((LazyList)rssItemList).close();
maxCount = links.size();
if (maxCount > 0) {
notificationManager.notify(NOTIFICATION_ID, notify);
}
linksToImages.addAll(links);
StartNextDownloadInQueue();
}
}
private synchronized void StartNextDownloadInQueue() {
try {
if(linksToImages.size() > 0) {
String link = linksToImages.remove(0);
new GetImageThreaded(link, imgDownloadFinished, 999).start();
}
} catch (Exception ex) {
ex.printStackTrace();
Toast.makeText(this, "Error while downloading images.", Toast.LENGTH_LONG).show();
}
}
private Notification GetNotificationLimitImagesReached(int limit) {
Intent intentNewsReader = new Intent(this, NewsReaderListActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intentNewsReader, 0);
NotificationCompat.Builder notifyBuilder = new NotificationCompat.Builder(this)
.setContentTitle("ownCloud News Reader")
.setContentText("Only " + limit + " images can be cached at once")
.setSmallIcon(R.drawable.ic_notification)
.setContentIntent(pIntent);
Notification notify = notifyBuilder.build();
//Hide the notification after its selected
notify.flags |= Notification.FLAG_AUTO_CANCEL;
return notify;
}
private Notification BuildNotification() {
Intent intentNewsReader = new Intent(this, NewsReaderListActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intentNewsReader, 0);
notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationDownloadImages = new NotificationCompat.Builder(this)
.setContentTitle("ownCloud News Reader")
.setContentText("Downloading Images for offline usage")
.setSmallIcon(R.drawable.ic_notification)
.setContentIntent(pIntent);
Notification notify = mNotificationDownloadImages.build();
//Hide the notification after its selected
notify.flags |= Notification.FLAG_AUTO_CANCEL;
//notify.flags |= Notification.FLAG_NO_CLEAR;
return notify;
}
private void RemoveOldImages() {
ImageLoader.getInstance().clearDiskCache();
}
ImageDownloadFinished imgDownloadFinished = new ImageDownloadFinished() {
@Override
public void DownloadFinished(long ThreadId, Bitmap bitmap) {
int count = maxCount - linksToImages.size();
if(maxCount == count) {
notificationManager.cancel(NOTIFICATION_ID);
//RemoveOldImages();
} else {
mNotificationDownloadImages
.setContentText("Downloading Images for offline usage - " + (count + 1) + "/" + maxCount)
.setProgress(maxCount, count + 1, false);
notificationManager.notify(NOTIFICATION_ID, mNotificationDownloadImages.build());
StartNextDownloadInQueue();
}
}
};
}
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