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.db.ProviderMeta;
  26 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
  27 import com.owncloud.android.lib.resources.shares.ShareType;
  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, where, whereArgs);
 228             break;
 229         default:
 230             //Log_OC.e(TAG, "Unknown uri " + uri);
 231             throw new IllegalArgumentException("Unknown uri: " + uri.toString());
 232         }
 233         return count;
 234     }
 235
 236
 237     @Override
 238     public String getType(Uri uri) {
 239         switch (mUriMatcher.match(uri)) {
 240         case ROOT_DIRECTORY:
 241             return ProviderTableMeta.CONTENT_TYPE;
 242         case SINGLE_FILE:
 243             return ProviderTableMeta.CONTENT_TYPE_ITEM;
 244         default:
 245             throw new IllegalArgumentException("Unknown Uri id."
 246                     + uri.toString());
 247         }
 248     }
 249
 250     @Override
 251     public Uri insert(Uri uri, ContentValues values) {
 252         //Log_OC.d(TAG, "Inserting " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 253         Uri newUri = null;
 254         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 255         db.beginTransaction();
 256         try {
 257             newUri = insert(db, uri, values);
 258             db.setTransactionSuccessful();
 259         } finally {
 260             db.endTransaction();
 261         }
 262         getContext().getContentResolver().notifyChange(newUri, null);
 263         return newUri;
 264     }
 265
 266     private Uri insert(SQLiteDatabase db, Uri uri, ContentValues values) {
 267         switch (mUriMatcher.match(uri)){
 268         case ROOT_DIRECTORY:
 269         case SINGLE_FILE:
 270             String remotePath = values.getAsString(ProviderTableMeta.FILE_PATH);
 271             String accountName = values.getAsString(ProviderTableMeta.FILE_ACCOUNT_OWNER);
 272             String[] projection = new String[] {ProviderTableMeta._ID, ProviderTableMeta.FILE_PATH, ProviderTableMeta.FILE_ACCOUNT_OWNER };
 273             String where = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 274             String[] whereArgs = new String[] {remotePath, accountName};
 275             Cursor doubleCheck = query(db, uri, projection, where, whereArgs, null);
 276             if (doubleCheck == null || !doubleCheck.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 277                 long rowId = db.insert(ProviderTableMeta.FILE_TABLE_NAME, null, values);
 278                 if (rowId > 0) {
 279                     Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, rowId);
 280                     //Log_OC.d(TAG, "Inserted " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 281                     return insertedFileUri;
 282                 } else {
 283                     //Log_OC.d(TAG, "Error while inserting " + values.getAsString(ProviderTableMeta.FILE_PATH)  + " at provider " + this);
 284                     throw new SQLException("ERROR " + uri);
 285                 }
 286             } else {
 287                 // file is already inserted; race condition, let's avoid a duplicated entry
 288                 Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, doubleCheck.getLong(doubleCheck.getColumnIndex(ProviderTableMeta._ID)));
 289                 doubleCheck.close();
 290
 291                 return insertedFileUri;
 292             }
 293
 294         case SHARES:
 295             String path = values.getAsString(ProviderTableMeta.OCSHARES_PATH);
 296             String accountNameShare= values.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 297             String[] projectionShare = new String[] {ProviderTableMeta._ID, ProviderTableMeta.OCSHARES_PATH, ProviderTableMeta.OCSHARES_ACCOUNT_OWNER };
 298             String whereShare = ProviderTableMeta.OCSHARES_PATH + "=? AND " + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?";
 299             String[] whereArgsShare = new String[] {path, accountNameShare};
 300             Uri insertedShareUri = null;
 301             Cursor doubleCheckShare = query(db, uri, projectionShare, whereShare, whereArgsShare, null);
 302             if (doubleCheckShare == null || !doubleCheckShare.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 303                 long rowId = db.insert(ProviderTableMeta.OCSHARES_TABLE_NAME, null, values);
 304                 if (rowId >0) {
 305                     insertedShareUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, rowId);
 306                 } else {
 307                     throw new SQLException("ERROR " + uri);
 308
 309                 }
 310             } else {
 311                 // file is already inserted; race condition, let's avoid a duplicated entry
 312                 insertedShareUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, doubleCheckShare.getLong(doubleCheckShare.getColumnIndex(ProviderTableMeta._ID)));
 313                 doubleCheckShare.close();
 314             }
 315             updateFilesTableAccordingToShareInsertion(db, uri, values);
 316             return insertedShareUri;
 317
 318
 319         default:
 320             throw new IllegalArgumentException("Unknown uri id: " + uri);
 321         }
 322
 323     }
 324
 325     private void updateFilesTableAccordingToShareInsertion(SQLiteDatabase db, Uri uri, ContentValues shareValues) {
 326         ContentValues fileValues = new ContentValues();
 327         fileValues.put(ProviderTableMeta.FILE_SHARE_BY_LINK,
 328                             ShareType.PUBLIC_LINK.getValue() == shareValues.getAsInteger(ProviderTableMeta.OCSHARES_SHARE_TYPE)? 1 : 0);
 329         String whereShare = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 330         String[] whereArgsShare = new String[] {
 331                 shareValues.getAsString(ProviderTableMeta.OCSHARES_PATH),
 332                 shareValues.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER)
 333         };
 334         db.update(ProviderTableMeta.FILE_TABLE_NAME, fileValues, whereShare, whereArgsShare);
 335     }
 336
 337
 338     @Override
 339     public boolean onCreate() {
 340         mDbHelper = new DataBaseHelper(getContext());
 341
 342         String authority = getContext().getResources().getString(R.string.authority);
 343         mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
 344         mUriMatcher.addURI(authority, null, ROOT_DIRECTORY);
 345         mUriMatcher.addURI(authority, "file/", SINGLE_FILE);
 346         mUriMatcher.addURI(authority, "file/#", SINGLE_FILE);
 347         mUriMatcher.addURI(authority, "dir/", DIRECTORY);
 348         mUriMatcher.addURI(authority, "dir/#", DIRECTORY);
 349         mUriMatcher.addURI(authority, "shares/", SHARES);
 350         mUriMatcher.addURI(authority, "shares/#", SHARES);
 351
 352         return true;
 353     }
 354
 355
 356     @Override
 357     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 358         Cursor result = null;
 359         SQLiteDatabase db = mDbHelper.getReadableDatabase();
 360         db.beginTransaction();
 361         try {
 362             result = query(db, uri, projection, selection, selectionArgs, sortOrder);
 363             db.setTransactionSuccessful();
 364         } finally {
 365             db.endTransaction();
 366         }
 367         return result;
 368     }
 369
 370     private Cursor query(SQLiteDatabase db, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 371         SQLiteQueryBuilder sqlQuery = new SQLiteQueryBuilder();
 372
 373         sqlQuery.setTables(ProviderTableMeta.FILE_TABLE_NAME);
 374         sqlQuery.setProjectionMap(mFileProjectionMap);
 375
 376         switch (mUriMatcher.match(uri)) {
 377         case ROOT_DIRECTORY:
 378             break;
 379         case DIRECTORY:
 380             String folderId = uri.getPathSegments().get(1);
 381             sqlQuery.appendWhere(ProviderTableMeta.FILE_PARENT + "="
 382                     + folderId);
 383             break;
 384         case SINGLE_FILE:
 385             if (uri.getPathSegments().size() > 1) {
 386                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 387                         + uri.getPathSegments().get(1));
 388             }
 389             break;
 390         case SHARES:
 391             sqlQuery.setTables(ProviderTableMeta.OCSHARES_TABLE_NAME);
 392             sqlQuery.setProjectionMap(mOCSharesProjectionMap);
 393             if (uri.getPathSegments().size() > 1) {
 394                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 395                         + uri.getPathSegments().get(1));
 396             }
 397             break;
 398         default:
 399             throw new IllegalArgumentException("Unknown uri id: " + uri);
 400         }
 401
 402         String order;
 403         if (TextUtils.isEmpty(sortOrder)) {
 404             if (mUriMatcher.match(uri) == SHARES) {
 405                 order = ProviderTableMeta.OCSHARES_DEFAULT_SORT_ORDER;
 406             } else {
 407
 408                 order = ProviderTableMeta.FILE_DEFAULT_SORT_ORDER;
 409             }
 410         } else {
 411             order = sortOrder;
 412         }
 413
 414         // DB case_sensitive
 415         db.execSQL("PRAGMA case_sensitive_like = true");
 416         Cursor c = sqlQuery.query(db, projection, selection, selectionArgs, null, null, order);
 417         c.setNotificationUri(getContext().getContentResolver(), uri);
 418         return c;
 419     }
 420
 421     @Override
 422     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 423
 424         //Log_OC.d(TAG, "Updating " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 425         int count = 0;
 426         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 427         db.beginTransaction();
 428         try {
 429             count = update(db, uri, values, selection, selectionArgs);
 430             db.setTransactionSuccessful();
 431         } finally {
 432             db.endTransaction();
 433         }
 434         getContext().getContentResolver().notifyChange(uri, null);
 435         return count;
 436     }
 437
 438
 439
 440     private int update(SQLiteDatabase db, Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 441         switch (mUriMatcher.match(uri)) {
 442             case DIRECTORY:
 443                 return  0; //updateFolderSize(db, selectionArgs[0]);
 444             case SHARES:
 445                 return db.update(ProviderTableMeta.OCSHARES_TABLE_NAME, values, selection, selectionArgs);
 446             default:
 447                 return db.update(ProviderTableMeta.FILE_TABLE_NAME, values, selection, selectionArgs);
 448         }
 449     }
 450
 451  /*
 452     private int updateFolderSize(SQLiteDatabase db, String folderId) {
 453         int count = 0;
 454         String [] whereArgs = new String[] { folderId };
 455
 456         // read current size saved for the folder
 457         long folderSize = 0;
 458         long folderParentId = -1;
 459         Uri selectFolderUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, folderId);
 460         String[] folderProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 461         String folderWhere = ProviderTableMeta._ID + "=?";
 462         Cursor folderCursor = query(db, selectFolderUri, folderProjection, folderWhere, whereArgs, null);
 463         if (folderCursor != null && folderCursor.moveToFirst()) {
 464             folderSize = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));;
 465             folderParentId = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_PARENT));;
 466         }
 467         folderCursor.close();
 468
 469         // read and sum sizes of children
 470         long childrenSize = 0;
 471         Uri selectChildrenUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, folderId);
 472         String[] childrenProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 473         String childrenWhere = ProviderTableMeta.FILE_PARENT + "=?";
 474         Cursor childrenCursor = query(db, selectChildrenUri, childrenProjection, childrenWhere, whereArgs, null);
 475         if (childrenCursor != null && childrenCursor.moveToFirst()) {
 476             while (!childrenCursor.isAfterLast()) {
 477                 childrenSize += childrenCursor.getLong(childrenCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));
 478                 childrenCursor.moveToNext();
 479             }
 480         }
 481         childrenCursor.close();
 482
 483         // update if needed
 484         if (folderSize != childrenSize) {
 485             Log_OC.d("FileContentProvider", "Updating " + folderSize + " to " + childrenSize);
 486             ContentValues cv = new ContentValues();
 487             cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, childrenSize);
 488             count = db.update(ProviderTableMeta.FILE_TABLE_NAME, cv, folderWhere, whereArgs);
 489
 490             // propagate update until root
 491             if (folderParentId > FileDataStorageManager.ROOT_PARENT_ID) {
 492                 Log_OC.d("FileContentProvider", "Propagating update to " + folderParentId);
 493                 updateFolderSize(db, String.valueOf(folderParentId));
 494             } else {
 495                 Log_OC.d("FileContentProvider", "NOT propagating to " + folderParentId);
 496             }
 497         } else {
 498             Log_OC.d("FileContentProvider", "NOT updating, sizes are " + folderSize + " and " + childrenSize);
 499         }
 500         return count;
 501     }
 502 */
 503
 504     @Override
 505     public ContentProviderResult[] applyBatch (ArrayList<ContentProviderOperation> operations) throws OperationApplicationException {
 506         Log_OC.d("FileContentProvider", "applying batch in provider " + this + " (temporary: " + isTemporary() + ")" );
 507         ContentProviderResult[] results = new ContentProviderResult[operations.size()];
 508         int i=0;
 509
 510         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 511         db.beginTransaction();  // it's supposed that transactions can be nested
 512         try {
 513             for (ContentProviderOperation operation : operations) {
 514                 results[i] = operation.apply(this, results, i);
 515                 i++;
 516             }
 517             db.setTransactionSuccessful();
 518         } finally {
 519             db.endTransaction();
 520         }
 521         Log_OC.d("FileContentProvider", "applied batch in provider " + this);
 522         return results;
 523     }
 524
 525
 526     class DataBaseHelper extends SQLiteOpenHelper {
 527
 528         public DataBaseHelper(Context context) {
 529             super(context, ProviderMeta.DB_NAME, null, ProviderMeta.DB_VERSION);
 530
 531         }
 532
 533         @Override
 534         public void onCreate(SQLiteDatabase db) {
 535             // files table
 536             Log_OC.i("SQL", "Entering in onCreate");
 537             db.execSQL("CREATE TABLE " + ProviderTableMeta.FILE_TABLE_NAME + "("
 538                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 539                     + ProviderTableMeta.FILE_NAME + " TEXT, "
 540                     + ProviderTableMeta.FILE_PATH + " TEXT, "
 541                     + ProviderTableMeta.FILE_PARENT + " INTEGER, "
 542                     + ProviderTableMeta.FILE_CREATION + " INTEGER, "
 543                     + ProviderTableMeta.FILE_MODIFIED + " INTEGER, "
 544                     + ProviderTableMeta.FILE_CONTENT_TYPE + " TEXT, "
 545                     + ProviderTableMeta.FILE_CONTENT_LENGTH + " INTEGER, "
 546                     + ProviderTableMeta.FILE_STORAGE_PATH + " TEXT, "
 547                     + ProviderTableMeta.FILE_ACCOUNT_OWNER + " TEXT, "
 548                     + ProviderTableMeta.FILE_LAST_SYNC_DATE + " INTEGER, "
 549                     + ProviderTableMeta.FILE_KEEP_IN_SYNC + " INTEGER, "
 550                     + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " INTEGER, "
 551                     + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " INTEGER, "
 552                     + ProviderTableMeta.FILE_ETAG + " TEXT, "
 553                     + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER, "
 554                     + ProviderTableMeta.FILE_PUBLIC_LINK  + " TEXT );"
 555                     );
 556
 557             // Create table ocshares
 558             db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 559                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 560                     + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 561                     + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 562                     + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 563                     + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 564                     + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 565                     + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 566                     + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 567                     + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 568                     + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 569                     + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 570                     + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 571                     + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 572                     + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 573                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 574         }
 575
 576         @Override
 577         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 578             Log_OC.i("SQL", "Entering in onUpgrade");
 579             boolean upgraded = false;
 580             if (oldVersion == 1 && newVersion >= 2) {
 581                 Log_OC.i("SQL", "Entering in the #1 ADD in onUpgrade");
 582                 db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 583                            " ADD COLUMN " + ProviderTableMeta.FILE_KEEP_IN_SYNC  + " INTEGER " +
 584                            " DEFAULT 0");
 585                 upgraded = true;
 586             }
 587             if (oldVersion < 3 && newVersion >= 3) {
 588                 Log_OC.i("SQL", "Entering in the #2 ADD in onUpgrade");
 589                 db.beginTransaction();
 590                 try {
 591                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 592                                " ADD COLUMN " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA  + " INTEGER " +
 593                                " DEFAULT 0");
 594
 595                     // assume there are not local changes pending to upload
 596                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 597                             " SET " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " = " + System.currentTimeMillis() +
 598                             " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 599
 600                     upgraded = true;
 601                     db.setTransactionSuccessful();
 602                 } finally {
 603                     db.endTransaction();
 604                 }
 605             }
 606             if (oldVersion < 4 && newVersion >= 4) {
 607                 Log_OC.i("SQL", "Entering in the #3 ADD in onUpgrade");
 608                 db.beginTransaction();
 609                 try {
 610                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 611                            " ADD COLUMN " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA  + " INTEGER " +
 612                            " DEFAULT 0");
 613
 614                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 615                            " SET " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " = " + ProviderTableMeta.FILE_MODIFIED +
 616                            " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 617
 618                     upgraded = true;
 619                     db.setTransactionSuccessful();
 620                 } finally {
 621                     db.endTransaction();
 622                 }
 623             }
 624             if (!upgraded)
 625                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 626
 627             if (oldVersion < 5 && newVersion >= 5) {
 628                 Log_OC.i("SQL", "Entering in the #4 ADD in onUpgrade");
 629                 db.beginTransaction();
 630                 try {
 631                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 632                             " ADD COLUMN " + ProviderTableMeta.FILE_ETAG + " TEXT " +
 633                             " DEFAULT NULL");
 634
 635                     upgraded = true;
 636                     db.setTransactionSuccessful();
 637                 } finally {
 638                     db.endTransaction();
 639                 }
 640             }
 641             if (!upgraded)
 642                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 643
 644             if (oldVersion < 6 && newVersion >= 6) {
 645                 Log_OC.i("SQL", "Entering in the #5 ADD in onUpgrade");
 646                 db.beginTransaction();
 647                 try {
 648                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 649                             " ADD COLUMN " + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER " +
 650                             " DEFAULT 0");
 651
 652                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 653                             " ADD COLUMN " + ProviderTableMeta.FILE_PUBLIC_LINK + " TEXT " +
 654                             " DEFAULT NULL");
 655
 656                     // Create table ocshares
 657                     db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 658                             + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 659                             + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 660                             + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 661                             + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 662                             + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 663                             + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 664                             + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 665                             + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 666                             + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 667                             + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 668                             + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 669                             + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 670                             + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 671                             + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 672                             + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 673
 674                     upgraded = true;
 675                     db.setTransactionSuccessful();
 676                 } finally {
 677                     db.endTransaction();
 678                 }
 679             }
 680             if (!upgraded)
 681                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 682         }
 683     }
 684
 685 }