src/com/owncloud/android/syncadapter/FileSyncAdapter.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.syncadapter;
  20
  21 import java.io.IOException;
  22 import java.util.List;
  23 import java.util.Vector;
  24
  25 import org.apache.http.HttpStatus;
  26 import org.apache.jackrabbit.webdav.DavException;
  27 import org.apache.jackrabbit.webdav.MultiStatus;
  28 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  29
  30 import com.owncloud.android.R;
  31 import com.owncloud.android.datamodel.FileDataStorageManager;
  32 import com.owncloud.android.datamodel.OCFile;
  33 import com.owncloud.android.files.services.FileDownloader;
  34
  35 import android.accounts.Account;
  36 import android.app.Notification;
  37 import android.app.NotificationManager;
  38 import android.app.PendingIntent;
  39 import android.content.ContentProviderClient;
  40 import android.content.ContentResolver;
  41 import android.content.Context;
  42 import android.content.Intent;
  43 import android.content.SyncResult;
  44 import android.os.Bundle;
  45 import android.util.Log;
  46 import eu.alefzero.webdav.WebdavEntry;
  47 import eu.alefzero.webdav.WebdavUtils;
  48
  49 /**
  50  * SyncAdapter implementation for syncing sample SyncAdapter contacts to the
  51  * platform ContactOperations provider.
  52  *
  53  * @author Bartek Przybylski
  54  */
  55 public class FileSyncAdapter extends AbstractOwnCloudSyncAdapter {
  56
  57     private final static String TAG = "FileSyncAdapter";
  58
  59     /*  Commented code for ugly performance tests
  60     private final static int MAX_DELAYS = 100;
  61     private static long[] mResponseDelays = new long[MAX_DELAYS];
  62     private static long[] mSaveDelays = new long[MAX_DELAYS];
  63     private int mDelaysIndex = 0;
  64     private int mDelaysCount = 0;
  65     */
  66
  67     private long mCurrentSyncTime;
  68     private boolean mCancellation;
  69     private boolean mIsManualSync;
  70     private boolean mRightSync;
  71
  72     public FileSyncAdapter(Context context, boolean autoInitialize) {
  73         super(context, autoInitialize);
  74     }
  75
  76     @Override
  77     public synchronized void onPerformSync(Account account, Bundle extras,
  78             String authority, ContentProviderClient provider,
  79             SyncResult syncResult) {
  80
  81         mCancellation = false;
  82         mIsManualSync = extras.getBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, false);
  83         mRightSync = true;
  84
  85         this.setAccount(account);
  86         this.setContentProvider(provider);
  87         this.setStorageManager(new FileDataStorageManager(account, getContentProvider()));
  88
  89         /*  Commented code for ugly performance tests
  90         mDelaysIndex = 0;
  91         mDelaysCount = 0;
  92         */
  93
  94
  95         Log.d(TAG, "syncing owncloud account " + account.name);
  96
  97         sendStickyBroadcast(true, null);  // message to signal the start to the UI
  98
  99         String uri = getUri().toString();
 100         PropFindMethod query = null;
 101         try {
 102             mCurrentSyncTime = System.currentTimeMillis();
 103             query = new PropFindMethod(uri + "/");
 104             int status = getClient().executeMethod(query);
 105             if (status != HttpStatus.SC_UNAUTHORIZED) {
 106                 MultiStatus resp = query.getResponseBodyAsMultiStatus();
 107
 108                 if (resp.getResponses().length > 0) {
 109                     WebdavEntry we = new WebdavEntry(resp.getResponses()[0], getUri().getPath());
 110                     OCFile file = fillOCFile(we);
 111                     file.setParentId(0);
 112                     getStorageManager().saveFile(file);
 113                     if (!mCancellation) {
 114                         fetchData(uri, syncResult, file.getFileId());
 115                     }
 116                 }
 117
 118             } else {
 119                 syncResult.stats.numAuthExceptions++;
 120             }
 121         } catch (IOException e) {
 122             syncResult.stats.numIoExceptions++;
 123             logException(e, uri + "/");
 124
 125         } catch (DavException e) {
 126             syncResult.stats.numParseExceptions++;
 127             logException(e, uri + "/");
 128
 129         } catch (Exception e) {
 130             // TODO something smart with syncresult
 131             logException(e, uri + "/");
 132             mRightSync = false;
 133
 134         } finally {
 135             if (query != null)
 136                 query.releaseConnection();  // let the connection available for other methods
 137             mRightSync &= (syncResult.stats.numIoExceptions == 0 && syncResult.stats.numAuthExceptions == 0 && syncResult.stats.numParseExceptions == 0);
 138             if (!mRightSync && mIsManualSync) {
 139                 /// don't let the system synchronization manager retries MANUAL synchronizations
 140                 //      (be careful: "MANUAL" currently includes the synchronization requested when a new account is created and when the user changes the current account)
 141                 syncResult.tooManyRetries = true;
 142
 143                 /// notify the user about the failure of MANUAL synchronization
 144                 Notification notification = new Notification(R.drawable.icon, getContext().getString(R.string.sync_fail_ticker), System.currentTimeMillis());
 145                 notification.flags |= Notification.FLAG_AUTO_CANCEL;
 146                 // TODO put something smart in the contentIntent below
 147                 notification.contentIntent = PendingIntent.getActivity(getContext().getApplicationContext(), 0, new Intent(), PendingIntent.FLAG_UPDATE_CURRENT);
 148                 notification.setLatestEventInfo(getContext().getApplicationContext(),
 149                                                 getContext().getString(R.string.sync_fail_ticker),
 150                                                 String.format(getContext().getString(R.string.sync_fail_content), account.name),
 151                                                 notification.contentIntent);
 152                 ((NotificationManager) getContext().getSystemService(Context.NOTIFICATION_SERVICE)).notify(R.string.sync_fail_ticker, notification);
 153             }
 154             sendStickyBroadcast(false, null);        // message to signal the end to the UI
 155         }
 156
 157         /*  Commented code for ugly performance tests
 158         long sum = 0, mean = 0, max = 0, min = Long.MAX_VALUE;
 159         for (int i=0; i<MAX_DELAYS && i<mDelaysCount; i++) {
 160             sum += mResponseDelays[i];
 161             max = Math.max(max, mResponseDelays[i]);
 162             min = Math.min(min, mResponseDelays[i]);
 163         }
 164         mean = sum / mDelaysCount;
 165         Log.e(TAG, "SYNC STATS - response: mean time = " + mean + " ; max time = " + max + " ; min time = " + min);
 166
 167         sum = 0; max = 0; min = Long.MAX_VALUE;
 168         for (int i=0; i<MAX_DELAYS && i<mDelaysCount; i++) {
 169             sum += mSaveDelays[i];
 170             max = Math.max(max, mSaveDelays[i]);
 171             min = Math.min(min, mSaveDelays[i]);
 172         }
 173         mean = sum / mDelaysCount;
 174         Log.e(TAG, "SYNC STATS - save:     mean time = " + mean + " ; max time = " + max + " ; min time = " + min);
 175         Log.e(TAG, "SYNC STATS - folders measured: " + mDelaysCount);
 176         */
 177
 178     }
 179
 180     private void fetchData(String uri, SyncResult syncResult, long parentId) {
 181         PropFindMethod query = null;
 182         try {
 183             Log.d(TAG, "fetching " + uri);
 184
 185             // remote request
 186             query = new PropFindMethod(uri);
 187             /*  Commented code for ugly performance tests
 188             long responseDelay = System.currentTimeMillis();
 189             */
 190             int status = getClient().executeMethod(query);
 191             /*  Commented code for ugly performance tests
 192             responseDelay = System.currentTimeMillis() - responseDelay;
 193             Log.e(TAG, "syncing: RESPONSE TIME for " + uri + " contents, " + responseDelay + "ms");
 194             */
 195             if (status != HttpStatus.SC_UNAUTHORIZED) {
 196                 MultiStatus resp = query.getResponseBodyAsMultiStatus();
 197
 198                 // insertion or update of files
 199                 List<OCFile> updatedFiles = new Vector<OCFile>(resp.getResponses().length - 1);
 200                 for (int i = 1; i < resp.getResponses().length; ++i) {
 201                     WebdavEntry we = new WebdavEntry(resp.getResponses()[i], getUri().getPath());
 202                     OCFile file = fillOCFile(we);
 203                     file.setParentId(parentId);
 204                     if (getStorageManager().getFileByPath(file.getRemotePath()) != null &&
 205                             getStorageManager().getFileByPath(file.getRemotePath()).keepInSync() &&
 206                             file.getModificationTimestamp() > getStorageManager().getFileByPath(file.getRemotePath())
 207                                                                          .getModificationTimestamp()) {
 208                         Intent intent = new Intent(this.getContext(), FileDownloader.class);
 209                         intent.putExtra(FileDownloader.EXTRA_ACCOUNT, getAccount());
 210                         intent.putExtra(FileDownloader.EXTRA_FILE_PATH, file.getRemotePath());
 211                         intent.putExtra(FileDownloader.EXTRA_REMOTE_PATH, file.getRemotePath());
 212                         intent.putExtra(FileDownloader.EXTRA_FILE_SIZE, file.getFileLength());
 213                         file.setKeepInSync(true);
 214                         getContext().startService(intent);
 215                     }
 216                     if (getStorageManager().getFileByPath(file.getRemotePath()) != null)
 217                         file.setKeepInSync(getStorageManager().getFileByPath(file.getRemotePath()).keepInSync());
 218
 219                     // Log.v(TAG, "adding file: " + file);
 220                     updatedFiles.add(file);
 221                     if (parentId == 0)
 222                         parentId = file.getFileId();
 223                 }
 224                 /*  Commented code for ugly performance tests
 225                 long saveDelay = System.currentTimeMillis();
 226                  */
 227                 getStorageManager().saveFiles(updatedFiles);    // all "at once" ; trying to get a best performance in database update
 228                 /*  Commented code for ugly performance tests
 229                 saveDelay = System.currentTimeMillis() - saveDelay;
 230                 Log.e(TAG, "syncing: SAVE TIME for " + uri + " contents, " + mSaveDelays[mDelaysIndex] + "ms");
 231                  */
 232
 233                 // removal of obsolete files
 234                 Vector<OCFile> files = getStorageManager().getDirectoryContent(
 235                         getStorageManager().getFileById(parentId));
 236                 OCFile file;
 237                 String currentSavePath = FileDownloader.getSavePath(getAccount().name);
 238                 for (int i=0; i < files.size(); ) {
 239                     file = files.get(i);
 240                     if (file.getLastSyncDate() != mCurrentSyncTime) {
 241                         Log.v(TAG, "removing file: " + file);
 242                         getStorageManager().removeFile(file, (file.isDown() && file.getStoragePath().startsWith(currentSavePath)));
 243                         files.remove(i);
 244                     } else {
 245                         i++;
 246                     }
 247                 }
 248
 249                 // recursive fetch
 250                 for (int i=0; i < files.size() && !mCancellation; i++) {
 251                     OCFile newFile = files.get(i);
 252                     if (newFile.getMimetype().equals("DIR")) {
 253                         fetchData(getUri().toString() + WebdavUtils.encodePath(newFile.getRemotePath()), syncResult, newFile.getFileId());
 254                     }
 255                 }
 256                 if (mCancellation) Log.d(TAG, "Leaving " + uri + " because cancelation request");
 257
 258                 /*  Commented code for ugly performance tests
 259                 mResponseDelays[mDelaysIndex] = responseDelay;
 260                 mSaveDelays[mDelaysIndex] = saveDelay;
 261                 mDelaysCount++;
 262                 mDelaysIndex++;
 263                 if (mDelaysIndex >= MAX_DELAYS)
 264                     mDelaysIndex = 0;
 265                  */
 266
 267             } else {
 268                 syncResult.stats.numAuthExceptions++;
 269             }
 270         } catch (IOException e) {
 271             syncResult.stats.numIoExceptions++;
 272             logException(e, uri);
 273
 274         } catch (DavException e) {
 275             syncResult.stats.numParseExceptions++;
 276             logException(e, uri);
 277
 278         } catch (Exception e) {
 279             // TODO something smart with syncresult
 280             mRightSync = false;
 281             logException(e, uri);
 282
 283         } finally {
 284             if (query != null)
 285                 query.releaseConnection();  // let the connection available for other methods
 286
 287             // synchronized folder -> notice to UI
 288             sendStickyBroadcast(true, getStorageManager().getFileById(parentId).getRemotePath());
 289         }
 290     }
 291
 292     private OCFile fillOCFile(WebdavEntry we) {
 293         OCFile file = new OCFile(we.decodedPath());
 294         file.setCreationTimestamp(we.createTimestamp());
 295         file.setFileLength(we.contentLength());
 296         file.setMimetype(we.contentType());
 297         file.setModificationTimestamp(we.modifiedTimesamp());
 298         file.setLastSyncDate(mCurrentSyncTime);
 299         return file;
 300     }
 301
 302
 303     private void sendStickyBroadcast(boolean inProgress, String dirRemotePath) {
 304         Intent i = new Intent(FileSyncService.SYNC_MESSAGE);
 305         i.putExtra(FileSyncService.IN_PROGRESS, inProgress);
 306         i.putExtra(FileSyncService.ACCOUNT_NAME, getAccount().name);
 307         if (dirRemotePath != null) {
 308             i.putExtra(FileSyncService.SYNC_FOLDER_REMOTE_PATH, dirRemotePath);
 309         }
 310         getContext().sendStickyBroadcast(i);
 311     }
 312
 313     /**
 314      * Called by system SyncManager when a synchronization is required to be cancelled.
 315      *
 316      * Sets the mCancellation flag to 'true'. THe synchronization will be stopped when before a new folder is fetched. Data of the last folder
 317      * fetched will be still saved in the database. See onPerformSync implementation.
 318      */
 319     @Override
 320     public void onSyncCanceled() {
 321         Log.d(TAG, "Synchronization of " + getAccount().name + " has been requested to cancel");
 322         mCancellation = true;
 323         super.onSyncCanceled();
 324     }
 325
 326
 327     /**
 328      * Logs an exception triggered in a synchronization request.
 329      *
 330      * @param e       Caught exception.
 331      * @param uri     Uri to the remote directory that was fetched when the synchronization failed
 332      */
 333     private void logException(Exception e, String uri) {
 334         if (e instanceof IOException) {
 335             Log.e(TAG, "Unrecovered transport exception while synchronizing " + uri + " at " + getAccount().name, e);
 336
 337         } else if (e instanceof DavException) {
 338             Log.e(TAG, "Unexpected WebDAV exception while synchronizing " + uri + " at " + getAccount().name, e);
 339
 340         } else {
 341             Log.e(TAG, "Unexpected exception while synchronizing " + uri  + " at " + getAccount().name, e);
 342         }
 343     }
 344
 345
 346 }