src/com/owncloud/android/providers/FileContentProvider.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   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.providers;
  20
  21 import java.util.ArrayList;
  22 import java.util.HashMap;
  23
  24 import com.owncloud.android.R;
  25 import com.owncloud.android.datamodel.FileDataStorageManager;
  26 import com.owncloud.android.db.ProviderMeta;
  27 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
  28 import com.owncloud.android.utils.Log_OC;
  29
  30
  31
  32 import android.content.ContentProvider;
  33 import android.content.ContentProviderOperation;
  34 import android.content.ContentProviderResult;
  35 import android.content.ContentUris;
  36 import android.content.ContentValues;
  37 import android.content.Context;
  38 import android.content.OperationApplicationException;
  39 import android.content.UriMatcher;
  40 import android.database.Cursor;
  41 import android.database.SQLException;
  42 import android.database.sqlite.SQLiteDatabase;
  43 import android.database.sqlite.SQLiteOpenHelper;
  44 import android.database.sqlite.SQLiteQueryBuilder;
  45 import android.net.Uri;
  46 import android.text.TextUtils;
  47
  48 /**
  49  * The ContentProvider for the ownCloud App.
  50  *
  51  * @author Bartek Przybylski
  52  * @author David A. Velasco
  53  *
  54  */
  55 public class FileContentProvider extends ContentProvider {
  56
  57     private DataBaseHelper mDbHelper;
  58
  59     // Projection for filelist table
  60     private static HashMap<String, String> mFileProjectionMap;
  61     static {
  62         mFileProjectionMap = new HashMap<String, String>();
  63         mFileProjectionMap.put(ProviderTableMeta._ID, ProviderTableMeta._ID);
  64         mFileProjectionMap.put(ProviderTableMeta.FILE_PARENT,
  65                 ProviderTableMeta.FILE_PARENT);
  66         mFileProjectionMap.put(ProviderTableMeta.FILE_PATH,
  67                 ProviderTableMeta.FILE_PATH);
  68         mFileProjectionMap.put(ProviderTableMeta.FILE_NAME,
  69                 ProviderTableMeta.FILE_NAME);
  70         mFileProjectionMap.put(ProviderTableMeta.FILE_CREATION,
  71                 ProviderTableMeta.FILE_CREATION);
  72         mFileProjectionMap.put(ProviderTableMeta.FILE_MODIFIED,
  73                 ProviderTableMeta.FILE_MODIFIED);
  74         mFileProjectionMap.put(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA,
  75                 ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA);
  76         mFileProjectionMap.put(ProviderTableMeta.FILE_CONTENT_LENGTH,
  77                 ProviderTableMeta.FILE_CONTENT_LENGTH);
  78         mFileProjectionMap.put(ProviderTableMeta.FILE_CONTENT_TYPE,
  79                 ProviderTableMeta.FILE_CONTENT_TYPE);
  80         mFileProjectionMap.put(ProviderTableMeta.FILE_STORAGE_PATH,
  81                 ProviderTableMeta.FILE_STORAGE_PATH);
  82         mFileProjectionMap.put(ProviderTableMeta.FILE_LAST_SYNC_DATE,
  83                 ProviderTableMeta.FILE_LAST_SYNC_DATE);
  84         mFileProjectionMap.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA,
  85                 ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA);
  86         mFileProjectionMap.put(ProviderTableMeta.FILE_KEEP_IN_SYNC,
  87                 ProviderTableMeta.FILE_KEEP_IN_SYNC);
  88         mFileProjectionMap.put(ProviderTableMeta.FILE_ACCOUNT_OWNER,
  89                 ProviderTableMeta.FILE_ACCOUNT_OWNER);
  90         mFileProjectionMap.put(ProviderTableMeta.FILE_ETAG,
  91                 ProviderTableMeta.FILE_ETAG);
  92         mFileProjectionMap.put(ProviderTableMeta.FILE_SHARE_BY_LINK,
  93                 ProviderTableMeta.FILE_SHARE_BY_LINK);
  94         mFileProjectionMap.put(ProviderTableMeta.FILE_PUBLIC_LINK,
  95                 ProviderTableMeta.FILE_PUBLIC_LINK);
  96     }
  97
  98     private static final int SINGLE_FILE = 1;
  99     private static final int DIRECTORY = 2;
 100     private static final int ROOT_DIRECTORY = 3;
 101     private static final int SHARES = 4;
 102
 103     // Projection for ocshares table
 104     private static HashMap<String, String> mOCSharesProjectionMap;
 105     static {
 106         mOCSharesProjectionMap = new HashMap<String, String>();
 107         mOCSharesProjectionMap.put(ProviderTableMeta._ID, ProviderTableMeta._ID);
 108         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_FILE_SOURCE,
 109                 ProviderTableMeta.OCSHARES_FILE_SOURCE);
 110         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE,
 111                 ProviderTableMeta.OCSHARES_ITEM_SOURCE);
 112         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_TYPE,
 113                 ProviderTableMeta.OCSHARES_SHARE_TYPE);
 114         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH,
 115                 ProviderTableMeta.OCSHARES_SHARE_WITH);
 116         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PATH,
 117                 ProviderTableMeta.OCSHARES_PATH);
 118         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PERMISSIONS,
 119                 ProviderTableMeta.OCSHARES_PERMISSIONS);
 120         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARED_DATE,
 121                 ProviderTableMeta.OCSHARES_SHARED_DATE);
 122         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE,
 123                 ProviderTableMeta.OCSHARES_EXPIRATION_DATE);
 124         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_TOKEN,
 125                 ProviderTableMeta.OCSHARES_TOKEN);
 126         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME,
 127                 ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME);
 128         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY,
 129                 ProviderTableMeta.OCSHARES_IS_DIRECTORY);
 130         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_USER_ID,
 131                 ProviderTableMeta.OCSHARES_USER_ID);
 132         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED,
 133                 ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED);
 134         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER,
 135                 ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 136     }
 137
 138     private UriMatcher mUriMatcher;
 139
 140     @Override
 141     public int delete(Uri uri, String where, String[] whereArgs) {
 142         //Log_OC.d(TAG, "Deleting " + uri + " at provider " + this);
 143         int count = 0;
 144         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 145         db.beginTransaction();
 146         try {
 147             count = delete(db, uri, where, whereArgs);
 148             db.setTransactionSuccessful();
 149         } finally {
 150             db.endTransaction();
 151         }
 152         getContext().getContentResolver().notifyChange(uri, null);
 153         return count;
 154     }
 155
 156     private int delete(SQLiteDatabase db, Uri uri, String where, String[] whereArgs) {
 157         int count = 0;
 158         switch (mUriMatcher.match(uri)) {
 159         case SINGLE_FILE:
 160             /*Cursor c = query(db, uri, null, where, whereArgs, null);
 161             String remotePath = "(unexisting)";
 162             if (c != null && c.moveToFirst()) {
 163                 remotePath = c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PATH));
 164             }
 165             Log_OC.d(TAG, "Removing FILE " + remotePath);
 166             */
 167             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 168                     ProviderTableMeta._ID
 169                             + "="
 170                             + uri.getPathSegments().get(1)
 171                             + (!TextUtils.isEmpty(where) ? " AND (" + where
 172                                     + ")" : ""), whereArgs);
 173             /* just for log
 174             if (c!=null) {
 175                 c.close();
 176             }
 177             */
 178             break;
 179         case DIRECTORY:
 180             // deletion of folder is recursive
 181             /*
 182             Uri folderUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, Long.parseLong(uri.getPathSegments().get(1)));
 183             Cursor folder = query(db, folderUri, null, null, null, null);
 184             String folderName = "(unknown)";
 185             if (folder != null && folder.moveToFirst()) {
 186                 folderName = folder.getString(folder.getColumnIndex(ProviderTableMeta.FILE_PATH));
 187             }
 188             */
 189             Cursor children = query(uri, null, null, null, null);
 190             if (children != null && children.moveToFirst())  {
 191                 long childId;
 192                 boolean isDir;
 193                 //String remotePath;
 194                 while (!children.isAfterLast()) {
 195                     childId = children.getLong(children.getColumnIndex(ProviderTableMeta._ID));
 196                     isDir = "DIR".equals(children.getString(children.getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)));
 197                     //remotePath = children.getString(children.getColumnIndex(ProviderTableMeta.FILE_PATH));
 198                     if (isDir) {
 199                         count += delete(db, ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_DIR, childId), null, null);
 200                     } else {
 201                         count += delete(db, ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, childId), null, null);
 202                     }
 203                     children.moveToNext();
 204                 }
 205                 children.close();
 206             } /*else {
 207                 Log_OC.d(TAG, "No child to remove in DIRECTORY " + folderName);
 208             }
 209             Log_OC.d(TAG, "Removing DIRECTORY " + folderName + " (or maybe not) ");
 210             */
 211             count += db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 212                     ProviderTableMeta._ID
 213                     + "="
 214                     + uri.getPathSegments().get(1)
 215                     + (!TextUtils.isEmpty(where) ? " AND (" + where
 216                             + ")" : ""), whereArgs);
 217             /* Just for log
 218              if (folder != null) {
 219                 folder.close();
 220             }*/
 221             break;
 222         case ROOT_DIRECTORY:
 223             //Log_OC.d(TAG, "Removing ROOT!");
 224             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME, where, whereArgs);
 225             break;
 226         case SHARES:
 227             count = db.delete(ProviderTableMeta.OCSHARES_TABLE_NAME,
 228                     ProviderTableMeta._ID
 229                             + "="
 230                             + uri.getPathSegments().get(1)
 231                             + (!TextUtils.isEmpty(where) ? " AND (" + where
 232                                     + ")" : ""), whereArgs);
 233             break;
 234         default:
 235             //Log_OC.e(TAG, "Unknown uri " + uri);
 236             throw new IllegalArgumentException("Unknown uri: " + uri.toString());
 237         }
 238         return count;
 239     }
 240
 241
 242     // TODO: switch(uri)
 243     @Override
 244     public String getType(Uri uri) {
 245         switch (mUriMatcher.match(uri)) {
 246         case ROOT_DIRECTORY:
 247             return ProviderTableMeta.CONTENT_TYPE;
 248         case SINGLE_FILE:
 249             return ProviderTableMeta.CONTENT_TYPE_ITEM;
 250         default:
 251             throw new IllegalArgumentException("Unknown Uri id."
 252                     + uri.toString());
 253         }
 254     }
 255
 256     @Override
 257     public Uri insert(Uri uri, ContentValues values) {
 258         //Log_OC.d(TAG, "Inserting " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 259         Uri newUri = null;
 260         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 261         db.beginTransaction();
 262         try {
 263             newUri = insert(db, uri, values);
 264             db.setTransactionSuccessful();
 265         } finally {
 266             db.endTransaction();
 267         }
 268         getContext().getContentResolver().notifyChange(newUri, null);
 269         return newUri;
 270     }
 271
 272     private Uri insert(SQLiteDatabase db, Uri uri, ContentValues values) {
 273         switch (mUriMatcher.match(uri)){
 274         case ROOT_DIRECTORY:
 275         case SINGLE_FILE:
 276             String remotePath = values.getAsString(ProviderTableMeta.FILE_PATH);
 277             String accountName = values.getAsString(ProviderTableMeta.FILE_ACCOUNT_OWNER);
 278             String[] projection = new String[] {ProviderTableMeta._ID, ProviderTableMeta.FILE_PATH, ProviderTableMeta.FILE_ACCOUNT_OWNER };
 279             String where = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 280             String[] whereArgs = new String[] {remotePath, accountName};
 281             Cursor doubleCheck = query(db, uri, projection, where, whereArgs, null);
 282             if (doubleCheck == null || !doubleCheck.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 283                 long rowId = db.insert(ProviderTableMeta.FILE_TABLE_NAME, null, values);
 284                 if (rowId > 0) {
 285                     Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, rowId);
 286                     //Log_OC.d(TAG, "Inserted " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 287                     return insertedFileUri;
 288                 } else {
 289                     //Log_OC.d(TAG, "Error while inserting " + values.getAsString(ProviderTableMeta.FILE_PATH)  + " at provider " + this);
 290                     throw new SQLException("ERROR " + uri);
 291                 }
 292             } else {
 293                 // file is already inserted; race condition, let's avoid a duplicated entry
 294                 Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, doubleCheck.getLong(doubleCheck.getColumnIndex(ProviderTableMeta._ID)));
 295                 doubleCheck.close();
 296
 297                 return insertedFileUri;
 298             }
 299
 300         case SHARES:
 301             String path = values.getAsString(ProviderTableMeta.OCSHARES_PATH);
 302             String accountNameShare= values.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 303             String[] projectionShare = new String[] {ProviderTableMeta._ID, ProviderTableMeta.OCSHARES_PATH, ProviderTableMeta.OCSHARES_ACCOUNT_OWNER };
 304             String whereShare = ProviderTableMeta.OCSHARES_PATH + "=? AND " + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?";
 305             String[] whereArgsShare = new String[] {path, accountNameShare};
 306             Cursor doubleCheckShare = query(db, uri, projectionShare, whereShare, whereArgsShare, null);
 307             if (doubleCheckShare == null || !doubleCheckShare.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 308                 long rowId = db.insert(ProviderTableMeta.OCSHARES_TABLE_NAME, null, values);
 309                 if (rowId >0) {
 310                     Uri insertedShareUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, rowId);
 311                     return insertedShareUri;
 312                 } else {
 313                     throw new SQLException("ERROR " + uri);
 314
 315                 }
 316             } else {
 317                 // file is already inserted; race condition, let's avoid a duplicated entry
 318                 Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, doubleCheckShare.getLong(doubleCheckShare.getColumnIndex(ProviderTableMeta._ID)));
 319                 doubleCheckShare.close();
 320
 321                 return insertedFileUri;
 322             }
 323
 324
 325         default:
 326             throw new IllegalArgumentException("Unknown uri id: " + uri);
 327         }
 328
 329     }
 330
 331
 332     @Override
 333     public boolean onCreate() {
 334         mDbHelper = new DataBaseHelper(getContext());
 335
 336         String authority = getContext().getResources().getString(R.string.authority);
 337         mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
 338         mUriMatcher.addURI(authority, null, ROOT_DIRECTORY);
 339         mUriMatcher.addURI(authority, "file/", SINGLE_FILE);
 340         mUriMatcher.addURI(authority, "file/#", SINGLE_FILE);
 341         mUriMatcher.addURI(authority, "dir/", DIRECTORY);
 342         mUriMatcher.addURI(authority, "dir/#", DIRECTORY);
 343         mUriMatcher.addURI(authority, "shares/", SHARES);
 344         mUriMatcher.addURI(authority, "shares/#", SHARES);
 345
 346         return true;
 347     }
 348
 349
 350     @Override
 351     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 352         Cursor result = null;
 353         SQLiteDatabase db = mDbHelper.getReadableDatabase();
 354         db.beginTransaction();
 355         try {
 356             result = query(db, uri, projection, selection, selectionArgs, sortOrder);
 357             db.setTransactionSuccessful();
 358         } finally {
 359             db.endTransaction();
 360         }
 361         return result;
 362     }
 363
 364     private Cursor query(SQLiteDatabase db, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 365         SQLiteQueryBuilder sqlQuery = new SQLiteQueryBuilder();
 366
 367         sqlQuery.setTables(ProviderTableMeta.FILE_TABLE_NAME);
 368         sqlQuery.setProjectionMap(mFileProjectionMap);
 369
 370         switch (mUriMatcher.match(uri)) {
 371         case ROOT_DIRECTORY:
 372             break;
 373         case DIRECTORY:
 374             String folderId = uri.getPathSegments().get(1);
 375             sqlQuery.appendWhere(ProviderTableMeta.FILE_PARENT + "="
 376                     + folderId);
 377             break;
 378         case SINGLE_FILE:
 379             if (uri.getPathSegments().size() > 1) {
 380                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 381                         + uri.getPathSegments().get(1));
 382             }
 383             break;
 384         case SHARES:
 385             sqlQuery.setTables(ProviderTableMeta.OCSHARES_TABLE_NAME);
 386             sqlQuery.setProjectionMap(mOCSharesProjectionMap);
 387             if (uri.getPathSegments().size() > 1) {
 388                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 389                         + uri.getPathSegments().get(1));
 390             }
 391             break;
 392         default:
 393             throw new IllegalArgumentException("Unknown uri id: " + uri);
 394         }
 395
 396         String order;
 397         if (TextUtils.isEmpty(sortOrder)) {
 398             if (mUriMatcher.match(uri) == SHARES) {
 399                 order = ProviderTableMeta.OCSHARES_DEFAULT_SORT_ORDER;
 400             } else {
 401
 402                 order = ProviderTableMeta.FILE_DEFAULT_SORT_ORDER;
 403             }
 404         } else {
 405             order = sortOrder;
 406         }
 407
 408         // DB case_sensitive
 409         db.execSQL("PRAGMA case_sensitive_like = true");
 410         Cursor c = sqlQuery.query(db, projection, selection, selectionArgs, null, null, order);
 411         c.setNotificationUri(getContext().getContentResolver(), uri);
 412         return c;
 413     }
 414
 415     @Override
 416     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 417
 418         //Log_OC.d(TAG, "Updating " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 419         int count = 0;
 420         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 421         db.beginTransaction();
 422         try {
 423             count = update(db, uri, values, selection, selectionArgs);
 424             db.setTransactionSuccessful();
 425         } finally {
 426             db.endTransaction();
 427         }
 428         getContext().getContentResolver().notifyChange(uri, null);
 429         return count;
 430     }
 431
 432
 433
 434     private int update(SQLiteDatabase db, Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 435         switch (mUriMatcher.match(uri)) {
 436             case DIRECTORY:
 437                 return updateFolderSize(db, selectionArgs[0]);
 438             case SHARES:
 439                 return db.update(ProviderTableMeta.OCSHARES_TABLE_NAME, values, selection, selectionArgs);
 440             default:
 441                 return db.update(ProviderTableMeta.FILE_TABLE_NAME, values, selection, selectionArgs);
 442         }
 443     }
 444
 445
 446     private int updateFolderSize(SQLiteDatabase db, String folderId) {
 447         int count = 0;
 448         String [] whereArgs = new String[] { folderId };
 449
 450         // read current size saved for the folder
 451         long folderSize = 0;
 452         long folderParentId = -1;
 453         Uri selectFolderUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, folderId);
 454         String[] folderProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 455         String folderWhere = ProviderTableMeta._ID + "=?";
 456         Cursor folderCursor = query(db, selectFolderUri, folderProjection, folderWhere, whereArgs, null);
 457         if (folderCursor != null && folderCursor.moveToFirst()) {
 458             folderSize = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));;
 459             folderParentId = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_PARENT));;
 460         }
 461         folderCursor.close();
 462
 463         // read and sum sizes of children
 464         long childrenSize = 0;
 465         Uri selectChildrenUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, folderId);
 466         String[] childrenProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 467         String childrenWhere = ProviderTableMeta.FILE_PARENT + "=?";
 468         Cursor childrenCursor = query(db, selectChildrenUri, childrenProjection, childrenWhere, whereArgs, null);
 469         if (childrenCursor != null && childrenCursor.moveToFirst()) {
 470             while (!childrenCursor.isAfterLast()) {
 471                 childrenSize += childrenCursor.getLong(childrenCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));
 472                 childrenCursor.moveToNext();
 473             }
 474         }
 475         childrenCursor.close();
 476
 477         // update if needed
 478         if (folderSize != childrenSize) {
 479             Log_OC.d("FileContentProvider", "Updating " + folderSize + " to " + childrenSize);
 480             ContentValues cv = new ContentValues();
 481             cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, childrenSize);
 482             count = db.update(ProviderTableMeta.FILE_TABLE_NAME, cv, folderWhere, whereArgs);
 483
 484             // propagate update until root
 485             if (folderParentId > FileDataStorageManager.ROOT_PARENT_ID) {
 486                 Log_OC.d("FileContentProvider", "Propagating update to " + folderParentId);
 487                 updateFolderSize(db, String.valueOf(folderParentId));
 488             } else {
 489                 Log_OC.d("FileContentProvider", "NOT propagating to " + folderParentId);
 490             }
 491         } else {
 492             Log_OC.d("FileContentProvider", "NOT updating, sizes are " + folderSize + " and " + childrenSize);
 493         }
 494         return count;
 495     }
 496
 497
 498     @Override
 499     public ContentProviderResult[] applyBatch (ArrayList<ContentProviderOperation> operations) throws OperationApplicationException {
 500         Log_OC.d("FileContentProvider", "applying batch in provider " + this + " (temporary: " + isTemporary() + ")" );
 501         ContentProviderResult[] results = new ContentProviderResult[operations.size()];
 502         int i=0;
 503
 504         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 505         db.beginTransaction();  // it's supposed that transactions can be nested
 506         try {
 507             for (ContentProviderOperation operation : operations) {
 508                 results[i] = operation.apply(this, results, i);
 509                 i++;
 510             }
 511             db.setTransactionSuccessful();
 512         } finally {
 513             db.endTransaction();
 514         }
 515         Log_OC.d("FileContentProvider", "applied batch in provider " + this);
 516         return results;
 517     }
 518
 519
 520     class DataBaseHelper extends SQLiteOpenHelper {
 521
 522         public DataBaseHelper(Context context) {
 523             super(context, ProviderMeta.DB_NAME, null, ProviderMeta.DB_VERSION);
 524
 525         }
 526
 527         @Override
 528         public void onCreate(SQLiteDatabase db) {
 529             // files table
 530             Log_OC.i("SQL", "Entering in onCreate");
 531             db.execSQL("CREATE TABLE " + ProviderTableMeta.FILE_TABLE_NAME + "("
 532                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 533                     + ProviderTableMeta.FILE_NAME + " TEXT, "
 534                     + ProviderTableMeta.FILE_PATH + " TEXT, "
 535                     + ProviderTableMeta.FILE_PARENT + " INTEGER, "
 536                     + ProviderTableMeta.FILE_CREATION + " INTEGER, "
 537                     + ProviderTableMeta.FILE_MODIFIED + " INTEGER, "
 538                     + ProviderTableMeta.FILE_CONTENT_TYPE + " TEXT, "
 539                     + ProviderTableMeta.FILE_CONTENT_LENGTH + " INTEGER, "
 540                     + ProviderTableMeta.FILE_STORAGE_PATH + " TEXT, "
 541                     + ProviderTableMeta.FILE_ACCOUNT_OWNER + " TEXT, "
 542                     + ProviderTableMeta.FILE_LAST_SYNC_DATE + " INTEGER, "
 543                     + ProviderTableMeta.FILE_KEEP_IN_SYNC + " INTEGER, "
 544                     + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " INTEGER, "
 545                     + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " INTEGER, "
 546                     + ProviderTableMeta.FILE_ETAG + " TEXT, "
 547                     + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER, "
 548                     + ProviderTableMeta.FILE_PUBLIC_LINK  + " TEXT );"
 549                     );
 550
 551             // Create table ocshares
 552             db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 553                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 554                     + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 555                     + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 556                     + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 557                     + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 558                     + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 559                     + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 560                     + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 561                     + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 562                     + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 563                     + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 564                     + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 565                     + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 566                     + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 567                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 568         }
 569
 570         @Override
 571         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 572             Log_OC.i("SQL", "Entering in onUpgrade");
 573             boolean upgraded = false;
 574             if (oldVersion == 1 && newVersion >= 2) {
 575                 Log_OC.i("SQL", "Entering in the #1 ADD in onUpgrade");
 576                 db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 577                            " ADD COLUMN " + ProviderTableMeta.FILE_KEEP_IN_SYNC  + " INTEGER " +
 578                            " DEFAULT 0");
 579                 upgraded = true;
 580             }
 581             if (oldVersion < 3 && newVersion >= 3) {
 582                 Log_OC.i("SQL", "Entering in the #2 ADD in onUpgrade");
 583                 db.beginTransaction();
 584                 try {
 585                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 586                                " ADD COLUMN " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA  + " INTEGER " +
 587                                " DEFAULT 0");
 588
 589                     // assume there are not local changes pending to upload
 590                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 591                             " SET " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " = " + System.currentTimeMillis() +
 592                             " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 593
 594                     upgraded = true;
 595                     db.setTransactionSuccessful();
 596                 } finally {
 597                     db.endTransaction();
 598                 }
 599             }
 600             if (oldVersion < 4 && newVersion >= 4) {
 601                 Log_OC.i("SQL", "Entering in the #3 ADD in onUpgrade");
 602                 db.beginTransaction();
 603                 try {
 604                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 605                            " ADD COLUMN " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA  + " INTEGER " +
 606                            " DEFAULT 0");
 607
 608                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 609                            " SET " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " = " + ProviderTableMeta.FILE_MODIFIED +
 610                            " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 611
 612                     upgraded = true;
 613                     db.setTransactionSuccessful();
 614                 } finally {
 615                     db.endTransaction();
 616                 }
 617             }
 618             if (!upgraded)
 619                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 620
 621             if (oldVersion < 5 && newVersion >= 5) {
 622                 Log_OC.i("SQL", "Entering in the #4 ADD in onUpgrade");
 623                 db.beginTransaction();
 624                 try {
 625                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 626                             " ADD COLUMN " + ProviderTableMeta.FILE_ETAG + " TEXT " +
 627                             " DEFAULT NULL");
 628
 629                     upgraded = true;
 630                     db.setTransactionSuccessful();
 631                 } finally {
 632                     db.endTransaction();
 633                 }
 634             }
 635             if (!upgraded)
 636                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 637
 638             if (oldVersion < 6 && newVersion >= 6) {
 639                 Log_OC.i("SQL", "Entering in the #5 ADD in onUpgrade");
 640                 db.beginTransaction();
 641                 try {
 642                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 643                             " ADD COLUMN " + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER " +
 644                             " DEFAULT 0");
 645
 646                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 647                             " ADD COLUMN " + ProviderTableMeta.FILE_PUBLIC_LINK + " TEXT " +
 648                             " DEFAULT NULL");
 649
 650                     // Create table ocshares
 651                     db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 652                             + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 653                             + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 654                             + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 655                             + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 656                             + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 657                             + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 658                             + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 659                             + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 660                             + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 661                             + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 662                             + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 663                             + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 664                             + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 665                             + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 666                             + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 667
 668                     upgraded = true;
 669                     db.setTransactionSuccessful();
 670                 } finally {
 671                     db.endTransaction();
 672                 }
 673             }
 674             if (!upgraded)
 675                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 676         }
 677     }
 678
 679 }