src/com/owncloud/android/files/services/FileDownloader.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   Copyright (C) 2012 Bartek Przybylski
   5  *   Copyright (C) 2012-2015 ownCloud Inc.
   6  *
   7  *   This program is free software: you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License version 2,
   9  *   as published by the Free Software Foundation.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 package com.owncloud.android.files.services;
  22
  23 import java.io.File;
  24 import java.util.AbstractList;
  25 import java.util.HashMap;
  26 import java.util.Iterator;
  27 import java.util.Map;
  28 import java.util.Vector;
  29
  30 import com.owncloud.android.R;
  31 import com.owncloud.android.authentication.AccountUtils;
  32 import com.owncloud.android.authentication.AuthenticatorActivity;
  33 import com.owncloud.android.datamodel.FileDataStorageManager;
  34 import com.owncloud.android.datamodel.OCFile;
  35
  36 import com.owncloud.android.lib.common.network.OnDatatransferProgressListener;
  37 import com.owncloud.android.lib.common.OwnCloudAccount;
  38 import com.owncloud.android.lib.common.OwnCloudClient;
  39 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  40 import com.owncloud.android.notifications.NotificationBuilderWithProgressBar;
  41 import com.owncloud.android.notifications.NotificationDelayer;
  42 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  43 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  44 import com.owncloud.android.lib.common.utils.Log_OC;
  45 import com.owncloud.android.lib.resources.files.FileUtils;
  46 import com.owncloud.android.operations.DownloadFileOperation;
  47 import com.owncloud.android.ui.activity.FileActivity;
  48 import com.owncloud.android.ui.activity.FileDisplayActivity;
  49 import com.owncloud.android.ui.preview.PreviewImageActivity;
  50 import com.owncloud.android.ui.preview.PreviewImageFragment;
  51 import com.owncloud.android.utils.ErrorMessageAdapter;
  52
  53 import android.accounts.Account;
  54 import android.accounts.AccountManager;
  55 import android.accounts.OnAccountsUpdateListener;
  56 import android.app.NotificationManager;
  57 import android.app.PendingIntent;
  58 import android.app.Service;
  59 import android.content.Intent;
  60 import android.os.Binder;
  61 import android.os.Handler;
  62 import android.os.HandlerThread;
  63 import android.os.IBinder;
  64 import android.os.Looper;
  65 import android.os.Message;
  66 import android.os.Process;
  67 import android.support.v4.app.NotificationCompat;
  68 import android.util.Pair;
  69
  70 public class FileDownloader extends Service
  71         implements OnDatatransferProgressListener, OnAccountsUpdateListener {
  72
  73     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  74     public static final String EXTRA_FILE = "FILE";
  75
  76     private static final String DOWNLOAD_ADDED_MESSAGE = "DOWNLOAD_ADDED";
  77     private static final String DOWNLOAD_FINISH_MESSAGE = "DOWNLOAD_FINISH";
  78     public static final String EXTRA_DOWNLOAD_RESULT = "RESULT";
  79     public static final String EXTRA_FILE_PATH = "FILE_PATH";
  80     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  81     public static final String EXTRA_LINKED_TO_PATH = "LINKED_TO";
  82     public static final String ACCOUNT_NAME = "ACCOUNT_NAME";
  83
  84     private static final String TAG = "FileDownloader";
  85
  86     private Looper mServiceLooper;
  87     private ServiceHandler mServiceHandler;
  88     private IBinder mBinder;
  89     private OwnCloudClient mDownloadClient = null;
  90     private Account mCurrentAccount = null;
  91     private FileDataStorageManager mStorageManager;
  92
  93     private IndexedForest<DownloadFileOperation> mPendingDownloads = new IndexedForest<DownloadFileOperation>();
  94
  95     private DownloadFileOperation mCurrentDownload = null;
  96
  97     private NotificationManager mNotificationManager;
  98     private NotificationCompat.Builder mNotificationBuilder;
  99     private int mLastPercent;
 100
 101
 102     public static String getDownloadAddedMessage() {
 103         return FileDownloader.class.getName() + DOWNLOAD_ADDED_MESSAGE;
 104     }
 105
 106     public static String getDownloadFinishMessage() {
 107         return FileDownloader.class.getName() + DOWNLOAD_FINISH_MESSAGE;
 108     }
 109
 110     /**
 111      * Service initialization
 112      */
 113     @Override
 114     public void onCreate() {
 115         super.onCreate();
 116         Log_OC.d(TAG, "Creating service");
 117         mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
 118         HandlerThread thread = new HandlerThread("FileDownloaderThread",
 119                 Process.THREAD_PRIORITY_BACKGROUND);
 120         thread.start();
 121         mServiceLooper = thread.getLooper();
 122         mServiceHandler = new ServiceHandler(mServiceLooper, this);
 123         mBinder = new FileDownloaderBinder();
 124
 125         // add AccountsUpdatedListener
 126         AccountManager am = AccountManager.get(getApplicationContext());
 127         am.addOnAccountsUpdatedListener(this, null, false);
 128     }
 129
 130
 131     /**
 132      * Service clean up
 133      */
 134     @Override
 135     public void onDestroy() {
 136         Log_OC.v(TAG, "Destroying service");
 137         mBinder = null;
 138         mServiceHandler = null;
 139         mServiceLooper.quit();
 140         mServiceLooper = null;
 141         mNotificationManager = null;
 142
 143         // remove AccountsUpdatedListener
 144         AccountManager am = AccountManager.get(getApplicationContext());
 145         am.removeOnAccountsUpdatedListener(this);
 146
 147         super.onDestroy();
 148     }
 149
 150
 151     /**
 152      * Entry point to add one or several files to the queue of downloads.
 153      *
 154      * New downloads are added calling to startService(), resulting in a call to this method.
 155      * This ensures the service will keep on working although the caller activity goes away.
 156      */
 157     @Override
 158     public int onStartCommand(Intent intent, int flags, int startId) {
 159         Log_OC.d(TAG, "Starting command with id " + startId);
 160
 161         if (!intent.hasExtra(EXTRA_ACCOUNT) ||
 162                 !intent.hasExtra(EXTRA_FILE)
 163                 ) {
 164             Log_OC.e(TAG, "Not enough information provided in intent");
 165             return START_NOT_STICKY;
 166         } else {
 167             final Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 168             final OCFile file = intent.getParcelableExtra(EXTRA_FILE);
 169             AbstractList<String> requestedDownloads = new Vector<String>();
 170             try {
 171                 DownloadFileOperation newDownload = new DownloadFileOperation(account, file);
 172                 newDownload.addDatatransferProgressListener(this);
 173                 newDownload.addDatatransferProgressListener((FileDownloaderBinder) mBinder);
 174                 Pair<String, String> putResult = mPendingDownloads.putIfAbsent(
 175                         account, file.getRemotePath(), newDownload
 176                 );
 177                 String downloadKey = putResult.first;
 178                 requestedDownloads.add(downloadKey);
 179
 180                 sendBroadcastNewDownload(newDownload, putResult.second);
 181
 182             } catch (IllegalArgumentException e) {
 183                 Log_OC.e(TAG, "Not enough information provided in intent: " + e.getMessage());
 184                 return START_NOT_STICKY;
 185             }
 186
 187             if (requestedDownloads.size() > 0) {
 188                 Message msg = mServiceHandler.obtainMessage();
 189                 msg.arg1 = startId;
 190                 msg.obj = requestedDownloads;
 191                 mServiceHandler.sendMessage(msg);
 192             }
 193             //}
 194         }
 195
 196         return START_NOT_STICKY;
 197     }
 198
 199
 200     /**
 201      * Provides a binder object that clients can use to perform operations on the queue of downloads,
 202      * excepting the addition of new files.
 203      * <p/>
 204      * Implemented to perform cancellation, pause and resume of existing downloads.
 205      */
 206     @Override
 207     public IBinder onBind(Intent arg0) {
 208         return mBinder;
 209     }
 210
 211
 212     /**
 213      * Called when ALL the bound clients were onbound.
 214      */
 215     @Override
 216     public boolean onUnbind(Intent intent) {
 217         ((FileDownloaderBinder) mBinder).clearListeners();
 218         return false;   // not accepting rebinding (default behaviour)
 219     }
 220
 221     @Override
 222     public void onAccountsUpdated(Account[] accounts) {
 223          //review the current download and cancel it if its account doesn't exist
 224         if (mCurrentDownload != null &&
 225                 !AccountUtils.exists(mCurrentDownload.getAccount(), getApplicationContext())) {
 226             mCurrentDownload.cancel();
 227         }
 228         // The rest of downloads are cancelled when they try to start
 229     }
 230
 231
 232     /**
 233      * Binder to let client components to perform operations on the queue of downloads.
 234      * <p/>
 235      * It provides by itself the available operations.
 236      */
 237     public class FileDownloaderBinder extends Binder implements OnDatatransferProgressListener {
 238
 239         /**
 240          * Map of listeners that will be reported about progress of downloads from a
 241          * {@link FileDownloaderBinder}
 242          * instance.
 243          */
 244         private Map<Long, OnDatatransferProgressListener> mBoundListeners =
 245                 new HashMap<Long, OnDatatransferProgressListener>();
 246
 247
 248         /**
 249          * Cancels a pending or current download of a remote file.
 250          *
 251          * @param account ownCloud account where the remote file is stored.
 252          * @param file    A file in the queue of pending downloads
 253          */
 254         public void cancel(Account account, OCFile file) {
 255             Pair<DownloadFileOperation, String> removeResult = mPendingDownloads.remove(account, file.getRemotePath());
 256             DownloadFileOperation download = removeResult.first;
 257             if (download != null) {
 258                 download.cancel();
 259             } else {
 260                 if (mCurrentDownload != null && mCurrentAccount != null &&
 261                         mCurrentDownload.getRemotePath().startsWith(file.getRemotePath()) &&
 262                         account.name.equals(mCurrentAccount.name)) {
 263                     mCurrentDownload.cancel();
 264                 }
 265             }
 266         }
 267
 268         /**
 269          * Cancels all the downloads for an account
 270          *
 271          * @param account   ownCloud account.
 272          */
 273         public void cancel(Account account) {
 274             Log_OC.d(TAG, "Account= " + account.name);
 275
 276             if (mCurrentDownload != null) {
 277                 Log_OC.d(TAG, "Current Download Account= " + mCurrentDownload.getAccount().name);
 278                 if (mCurrentDownload.getAccount().name.equals(account.name)) {
 279                     mCurrentDownload.cancel();
 280                 }
 281             }
 282             // Cancel pending downloads
 283             cancelDownloadsForAccount(account);
 284         }
 285
 286         public void clearListeners() {
 287             mBoundListeners.clear();
 288         }
 289
 290
 291         /**
 292          * Returns True when the file described by 'file' in the ownCloud account 'account'
 293          * is downloading or waiting to download.
 294          *
 295          * If 'file' is a directory, returns 'true' if any of its descendant files is downloading or
 296          * waiting to download.
 297          *
 298          * @param account ownCloud account where the remote file is stored.
 299          * @param file    A file that could be in the queue of downloads.
 300          */
 301         public boolean isDownloading(Account account, OCFile file) {
 302             if (account == null || file == null) return false;
 303             return (mPendingDownloads.contains(account, file.getRemotePath()));
 304         }
 305
 306
 307         /**
 308          * Adds a listener interested in the progress of the download for a concrete file.
 309          *
 310          * @param listener Object to notify about progress of transfer.
 311          * @param account  ownCloud account holding the file of interest.
 312          * @param file     {@link OCFile} of interest for listener.
 313          */
 314         public void addDatatransferProgressListener(
 315                 OnDatatransferProgressListener listener, Account account, OCFile file
 316         ) {
 317             if (account == null || file == null || listener == null) return;
 318             mBoundListeners.put(file.getFileId(), listener);
 319         }
 320
 321
 322         /**
 323          * Removes a listener interested in the progress of the download for a concrete file.
 324          *
 325          * @param listener      Object to notify about progress of transfer.
 326          * @param account       ownCloud account holding the file of interest.
 327          * @param file          {@link OCFile} of interest for listener.
 328          */
 329         public void removeDatatransferProgressListener(
 330                 OnDatatransferProgressListener listener, Account account, OCFile file
 331         ) {
 332             if (account == null || file == null || listener == null) return;
 333             Long fileId = file.getFileId();
 334             if (mBoundListeners.get(fileId) == listener) {
 335                 mBoundListeners.remove(fileId);
 336             }
 337         }
 338
 339         @Override
 340         public void onTransferProgress(long progressRate, long totalTransferredSoFar,
 341                                        long totalToTransfer, String fileName) {
 342             OnDatatransferProgressListener boundListener =
 343                     mBoundListeners.get(mCurrentDownload.getFile().getFileId());
 344             if (boundListener != null) {
 345                 boundListener.onTransferProgress(progressRate, totalTransferredSoFar,
 346                         totalToTransfer, fileName);
 347             }
 348         }
 349
 350     }
 351
 352
 353     /**
 354      * Download worker. Performs the pending downloads in the order they were requested.
 355
 356      * Created with the Looper of a new thread, started in {@link FileUploader#onCreate()}.
 357      */
 358     private static class ServiceHandler extends Handler {
 359         // don't make it a final class, and don't remove the static ; lint will warn about a
 360         // possible memory leak
 361         FileDownloader mService;
 362
 363         public ServiceHandler(Looper looper, FileDownloader service) {
 364             super(looper);
 365             if (service == null)
 366                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 367             mService = service;
 368         }
 369
 370         @Override
 371         public void handleMessage(Message msg) {
 372             @SuppressWarnings("unchecked")
 373             AbstractList<String> requestedDownloads = (AbstractList<String>) msg.obj;
 374             if (msg.obj != null) {
 375                 Iterator<String> it = requestedDownloads.iterator();
 376                 while (it.hasNext()) {
 377                     String next = it.next();
 378                     mService.downloadFile(next);
 379                 }
 380             }
 381             Log_OC.d(TAG, "Stopping after command with id " + msg.arg1);
 382             mService.stopSelf(msg.arg1);
 383         }
 384     }
 385
 386
 387     /**
 388      * Core download method: requests a file to download and stores it.
 389      *
 390      * @param downloadKey Key to access the download to perform, contained in mPendingDownloads
 391      */
 392     private void downloadFile(String downloadKey) {
 393
 394         mCurrentDownload = mPendingDownloads.get(downloadKey);
 395
 396         if (mCurrentDownload != null) {
 397             // Detect if the account exists
 398             if (AccountUtils.exists(mCurrentDownload.getAccount(), getApplicationContext())) {
 399                 Log_OC.d(TAG, "Account " + mCurrentDownload.getAccount().name + " exists");
 400
 401                 notifyDownloadStart(mCurrentDownload);
 402
 403                 RemoteOperationResult downloadResult = null;
 404                 try {
 405                     /// prepare client object to send the request to the ownCloud server
 406                     if (mCurrentAccount == null ||
 407                             !mCurrentAccount.equals(mCurrentDownload.getAccount())) {
 408                         mCurrentAccount = mCurrentDownload.getAccount();
 409                         mStorageManager = new FileDataStorageManager(
 410                                 mCurrentAccount,
 411                                 getContentResolver()
 412                         );
 413                     }   // else, reuse storage manager from previous operation
 414
 415                     // always get client from client manager, to get fresh credentials in case
 416                     // of update
 417                     OwnCloudAccount ocAccount = new OwnCloudAccount(mCurrentAccount, this);
 418                     mDownloadClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 419                             getClientFor(ocAccount, this);
 420
 421
 422                     /// perform the download
 423                     downloadResult = mCurrentDownload.execute(mDownloadClient);
 424                     if (downloadResult.isSuccess()) {
 425                         saveDownloadedFile();
 426                     }
 427
 428                 } catch (Exception e) {
 429                     Log_OC.e(TAG, "Error downloading", e);
 430                     downloadResult = new RemoteOperationResult(e);
 431
 432                 } finally {
 433                     Pair<DownloadFileOperation, String> removeResult =
 434                             mPendingDownloads.removePayload(mCurrentAccount,
 435                                     mCurrentDownload.getRemotePath());
 436
 437                     /// notify result
 438                     notifyDownloadResult(mCurrentDownload, downloadResult);
 439
 440                     sendBroadcastDownloadFinished(mCurrentDownload, downloadResult, removeResult.second);
 441                 }
 442
 443             } else {
 444                 // Cancel the transfer
 445                 Log_OC.d(TAG, "Account " + mCurrentDownload.getAccount().toString() +
 446                         " doesn't exist");
 447                 cancelDownloadsForAccount(mCurrentDownload.getAccount());
 448
 449             }
 450         }
 451     }
 452
 453
 454     /**
 455      * Updates the OC File after a successful download.
 456      *
 457      * TODO move to DownloadFileOperation
 458      */
 459     private void saveDownloadedFile() {
 460         OCFile file = mStorageManager.getFileById(mCurrentDownload.getFile().getFileId());
 461         long syncDate = System.currentTimeMillis();
 462         file.setLastSyncDateForProperties(syncDate);
 463         file.setLastSyncDateForData(syncDate);
 464         file.setNeedsUpdateThumbnail(true);
 465         file.setModificationTimestamp(mCurrentDownload.getModificationTimestamp());
 466         file.setModificationTimestampAtLastSyncForData(mCurrentDownload.getModificationTimestamp());
 467         file.setEtag(mCurrentDownload.getEtag());
 468         file.setMimetype(mCurrentDownload.getMimeType());
 469         file.setStoragePath(mCurrentDownload.getSavePath());
 470         file.setFileLength((new File(mCurrentDownload.getSavePath()).length()));
 471         file.setRemoteId(mCurrentDownload.getFile().getRemoteId());
 472         mStorageManager.saveFile(file);
 473         mStorageManager.triggerMediaScan(file.getStoragePath());
 474         mStorageManager.saveConflict(file, null);
 475     }
 476
 477     /**
 478      * Creates a status notification to show the download progress
 479      *
 480      * @param download Download operation starting.
 481      */
 482     private void notifyDownloadStart(DownloadFileOperation download) {
 483         /// create status notification with a progress bar
 484         mLastPercent = 0;
 485         mNotificationBuilder =
 486                 NotificationBuilderWithProgressBar.newNotificationBuilderWithProgressBar(this);
 487         mNotificationBuilder
 488                 .setSmallIcon(R.drawable.notification_icon)
 489                 .setTicker(getString(R.string.downloader_download_in_progress_ticker))
 490                 .setContentTitle(getString(R.string.downloader_download_in_progress_ticker))
 491                 .setOngoing(true)
 492                 .setProgress(100, 0, download.getSize() < 0)
 493                 .setContentText(
 494                         String.format(getString(R.string.downloader_download_in_progress_content), 0,
 495                                 new File(download.getSavePath()).getName())
 496                 );
 497
 498         /// includes a pending intent in the notification showing the details view of the file
 499         Intent showDetailsIntent = null;
 500         if (PreviewImageFragment.canBePreviewed(download.getFile())) {
 501             showDetailsIntent = new Intent(this, PreviewImageActivity.class);
 502         } else {
 503             showDetailsIntent = new Intent(this, FileDisplayActivity.class);
 504         }
 505         showDetailsIntent.putExtra(FileActivity.EXTRA_FILE, download.getFile());
 506         showDetailsIntent.putExtra(FileActivity.EXTRA_ACCOUNT, download.getAccount());
 507         showDetailsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 508
 509         mNotificationBuilder.setContentIntent(PendingIntent.getActivity(
 510                 this, (int) System.currentTimeMillis(), showDetailsIntent, 0
 511         ));
 512
 513         mNotificationManager.notify(R.string.downloader_download_in_progress_ticker, mNotificationBuilder.build());
 514     }
 515
 516
 517     /**
 518      * Callback method to update the progress bar in the status notification.
 519      */
 520     @Override
 521     public void onTransferProgress(long progressRate, long totalTransferredSoFar,
 522                                    long totalToTransfer, String filePath) {
 523         int percent = (int) (100.0 * ((double) totalTransferredSoFar) / ((double) totalToTransfer));
 524         if (percent != mLastPercent) {
 525             mNotificationBuilder.setProgress(100, percent, totalToTransfer < 0);
 526             String fileName = filePath.substring(filePath.lastIndexOf(FileUtils.PATH_SEPARATOR) + 1);
 527             String text = String.format(getString(R.string.downloader_download_in_progress_content), percent, fileName);
 528             mNotificationBuilder.setContentText(text);
 529             mNotificationManager.notify(R.string.downloader_download_in_progress_ticker, mNotificationBuilder.build());
 530         }
 531         mLastPercent = percent;
 532     }
 533
 534
 535     /**
 536      * Updates the status notification with the result of a download operation.
 537      *
 538      * @param downloadResult Result of the download operation.
 539      * @param download       Finished download operation
 540      */
 541     private void notifyDownloadResult(DownloadFileOperation download,
 542                                       RemoteOperationResult downloadResult) {
 543         mNotificationManager.cancel(R.string.downloader_download_in_progress_ticker);
 544         if (!downloadResult.isCancelled()) {
 545             int tickerId = (downloadResult.isSuccess()) ? R.string.downloader_download_succeeded_ticker :
 546                     R.string.downloader_download_failed_ticker;
 547
 548             boolean needsToUpdateCredentials = (
 549                     downloadResult.getCode() == ResultCode.UNAUTHORIZED ||
 550                             downloadResult.isIdPRedirection()
 551             );
 552             tickerId = (needsToUpdateCredentials) ?
 553                     R.string.downloader_download_failed_credentials_error : tickerId;
 554
 555             mNotificationBuilder
 556                     .setTicker(getString(tickerId))
 557                     .setContentTitle(getString(tickerId))
 558                     .setAutoCancel(true)
 559                     .setOngoing(false)
 560                     .setProgress(0, 0, false);
 561
 562             if (needsToUpdateCredentials) {
 563
 564                 // let the user update credentials with one click
 565                 Intent updateAccountCredentials = new Intent(this, AuthenticatorActivity.class);
 566                 updateAccountCredentials.putExtra(AuthenticatorActivity.EXTRA_ACCOUNT,
 567                         download.getAccount());
 568                 updateAccountCredentials.putExtra(
 569                         AuthenticatorActivity.EXTRA_ACTION,
 570                         AuthenticatorActivity.ACTION_UPDATE_EXPIRED_TOKEN
 571                 );
 572                 updateAccountCredentials.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 573                 updateAccountCredentials.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
 574                 updateAccountCredentials.addFlags(Intent.FLAG_FROM_BACKGROUND);
 575                 mNotificationBuilder
 576                         .setContentIntent(PendingIntent.getActivity(
 577                                 this, (int) System.currentTimeMillis(), updateAccountCredentials,
 578                                 PendingIntent.FLAG_ONE_SHOT));
 579
 580             } else {
 581                 // TODO put something smart in showDetailsIntent
 582                 Intent showDetailsIntent = new Intent();
 583                 mNotificationBuilder
 584                         .setContentIntent(PendingIntent.getActivity(
 585                                 this, (int) System.currentTimeMillis(), showDetailsIntent, 0));
 586             }
 587
 588             mNotificationBuilder.setContentText(
 589                     ErrorMessageAdapter.getErrorCauseMessage(downloadResult, download,
 590                             getResources())
 591             );
 592             mNotificationManager.notify(tickerId, mNotificationBuilder.build());
 593
 594             // Remove success notification
 595             if (downloadResult.isSuccess()) {
 596                 // Sleep 2 seconds, so show the notification before remove it
 597                 NotificationDelayer.cancelWithDelay(
 598                         mNotificationManager,
 599                         R.string.downloader_download_succeeded_ticker,
 600                         2000);
 601             }
 602
 603         }
 604     }
 605
 606
 607     /**
 608      * Sends a broadcast when a download finishes in order to the interested activities can
 609      * update their view
 610      *
 611      * @param download               Finished download operation
 612      * @param downloadResult         Result of the download operation
 613      * @param unlinkedFromRemotePath Path in the downloads tree where the download was unlinked from
 614      */
 615     private void sendBroadcastDownloadFinished(
 616             DownloadFileOperation download,
 617             RemoteOperationResult downloadResult,
 618             String unlinkedFromRemotePath) {
 619
 620         Intent end = new Intent(getDownloadFinishMessage());
 621         end.putExtra(EXTRA_DOWNLOAD_RESULT, downloadResult.isSuccess());
 622         end.putExtra(ACCOUNT_NAME, download.getAccount().name);
 623         end.putExtra(EXTRA_REMOTE_PATH, download.getRemotePath());
 624         end.putExtra(EXTRA_FILE_PATH, download.getSavePath());
 625         if (unlinkedFromRemotePath != null) {
 626             end.putExtra(EXTRA_LINKED_TO_PATH, unlinkedFromRemotePath);
 627         }
 628         sendStickyBroadcast(end);
 629     }
 630
 631
 632     /**
 633      * Sends a broadcast when a new download is added to the queue.
 634      *
 635      * @param download           Added download operation
 636      * @param linkedToRemotePath Path in the downloads tree where the download was linked to
 637      */
 638     private void sendBroadcastNewDownload(DownloadFileOperation download,
 639                                           String linkedToRemotePath) {
 640         Intent added = new Intent(getDownloadAddedMessage());
 641         added.putExtra(ACCOUNT_NAME, download.getAccount().name);
 642         added.putExtra(EXTRA_REMOTE_PATH, download.getRemotePath());
 643         added.putExtra(EXTRA_FILE_PATH, download.getSavePath());
 644         added.putExtra(EXTRA_LINKED_TO_PATH, linkedToRemotePath);
 645         sendStickyBroadcast(added);
 646     }
 647
 648     /**
 649      * Remove downloads of an account
 650      *
 651      * @param account       Downloads account to remove
 652      */
 653     private void cancelDownloadsForAccount(Account account) {
 654         // Cancel pending downloads
 655         mPendingDownloads.remove(account);
 656     }
 657 }