Merge branch 'develop' into refactor_remote_operation_to_create_folder
[pub/Android/ownCloud.git] / src / com / owncloud / android / providers / FileContentProvider.java
index 5d6424d..9e7cd3f 100644 (file)
@@ -21,9 +21,12 @@ package com.owncloud.android.providers;
 import java.util.ArrayList;
 import java.util.HashMap;
 
-import com.owncloud.android.Log_OC;
+import com.owncloud.android.R;
+import com.owncloud.android.datamodel.FileDataStorageManager;
 import com.owncloud.android.db.ProviderMeta;
 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
+import com.owncloud.android.utils.Log_OC;
+
 
 
 import android.content.ContentProvider;
@@ -41,7 +44,6 @@ import android.database.sqlite.SQLiteOpenHelper;
 import android.database.sqlite.SQLiteQueryBuilder;
 import android.net.Uri;
 import android.text.TextUtils;
-import android.util.Log;
 
 /**
  * The ContentProvider for the ownCloud App.
@@ -88,19 +90,12 @@ public class FileContentProvider extends ContentProvider {
                 ProviderTableMeta.FILE_ETAG);
     }
 
-    private static final String TAG = FileContentProvider.class.getSimpleName(); 
     private static final int SINGLE_FILE = 1;
     private static final int DIRECTORY = 2;
     private static final int ROOT_DIRECTORY = 3;
-    private static final UriMatcher mUriMatcher;
-    static {
-        mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
-        mUriMatcher.addURI(ProviderMeta.AUTHORITY_FILES, null, ROOT_DIRECTORY);
-        mUriMatcher.addURI(ProviderMeta.AUTHORITY_FILES, "file/", SINGLE_FILE);
-        mUriMatcher.addURI(ProviderMeta.AUTHORITY_FILES, "file/#", SINGLE_FILE);
-        mUriMatcher.addURI(ProviderMeta.AUTHORITY_FILES, "dir/#", DIRECTORY);
-    }
 
+    private UriMatcher mUriMatcher;
+    
     @Override
     public int delete(Uri uri, String where, String[] whereArgs) {
         //Log_OC.d(TAG, "Deleting " + uri + " at provider " + this);
@@ -155,11 +150,11 @@ public class FileContentProvider extends ContentProvider {
             if (children != null && children.moveToFirst())  {
                 long childId;
                 boolean isDir; 
-                String remotePath; 
+                //String remotePath; 
                 while (!children.isAfterLast()) {
                     childId = children.getLong(children.getColumnIndex(ProviderTableMeta._ID));
                     isDir = "DIR".equals(children.getString(children.getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)));
-                    remotePath = children.getString(children.getColumnIndex(ProviderTableMeta.FILE_PATH));
+                    //remotePath = children.getString(children.getColumnIndex(ProviderTableMeta.FILE_PATH));
                     if (isDir) {
                         count += delete(db, ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_DIR, childId), null, null);
                     } else {
@@ -232,14 +227,27 @@ public class FileContentProvider extends ContentProvider {
             throw new IllegalArgumentException("Unknown uri id: " + uri);
         }
 
-        long rowId = db.insert(ProviderTableMeta.DB_NAME, null, values);
-        if (rowId > 0) {
-            Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, rowId);
-            //Log_OC.d(TAG, "Inserted " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
-            return insertedFileUri;
+        String remotePath = values.getAsString(ProviderTableMeta.FILE_PATH);
+        String accountName = values.getAsString(ProviderTableMeta.FILE_ACCOUNT_OWNER);
+        String[] projection = new String[] {ProviderTableMeta._ID, ProviderTableMeta.FILE_PATH, ProviderTableMeta.FILE_ACCOUNT_OWNER };
+        String where = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
+        String[] whereArgs = new String[] {remotePath, accountName};
+        Cursor doubleCheck = query(db, uri, projection, where, whereArgs, null);
+        if (doubleCheck == null || !doubleCheck.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider 
+            long rowId = db.insert(ProviderTableMeta.DB_NAME, null, values);
+            if (rowId > 0) {
+                Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, rowId);
+                //Log_OC.d(TAG, "Inserted " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
+                return insertedFileUri;
+            } else {
+                //Log_OC.d(TAG, "Error while inserting " + values.getAsString(ProviderTableMeta.FILE_PATH)  + " at provider " + this);
+                throw new SQLException("ERROR " + uri);
+            }
         } else {
-            //Log_OC.d(TAG, "Error while inserting " + values.getAsString(ProviderTableMeta.FILE_PATH)  + " at provider " + this);
-            throw new SQLException("ERROR " + uri);
+            // file is already inserted; race condition, let's avoid a duplicated entry
+            Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, doubleCheck.getLong(doubleCheck.getColumnIndex(ProviderTableMeta._ID)));
+            doubleCheck.close();
+            return insertedFileUri;
         }
     }
 
@@ -247,6 +255,15 @@ public class FileContentProvider extends ContentProvider {
     @Override
     public boolean onCreate() {
         mDbHelper = new DataBaseHelper(getContext());
+        
+        String authority = getContext().getResources().getString(R.string.authority);
+        mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        mUriMatcher.addURI(authority, null, ROOT_DIRECTORY);
+        mUriMatcher.addURI(authority, "file/", SINGLE_FILE);
+        mUriMatcher.addURI(authority, "file/#", SINGLE_FILE);
+        mUriMatcher.addURI(authority, "dir/", DIRECTORY);
+        mUriMatcher.addURI(authority, "dir/#", DIRECTORY);
+        
         return true;
     }
 
@@ -275,8 +292,9 @@ public class FileContentProvider extends ContentProvider {
         case ROOT_DIRECTORY:
             break;
         case DIRECTORY:
+            String folderId = uri.getPathSegments().get(1);
             sqlQuery.appendWhere(ProviderTableMeta.FILE_PARENT + "="
-                    + uri.getPathSegments().get(1));
+                    + folderId);
             break;
         case SINGLE_FILE:
             if (uri.getPathSegments().size() > 1) {
@@ -298,7 +316,6 @@ public class FileContentProvider extends ContentProvider {
         // DB case_sensitive
         db.execSQL("PRAGMA case_sensitive_like = true");
         Cursor c = sqlQuery.query(db, projection, selection, selectionArgs, null, null, order);
-
         c.setNotificationUri(getContext().getContentResolver(), uri);
         return c;
     }
@@ -322,13 +339,70 @@ public class FileContentProvider extends ContentProvider {
     
     
     private int update(SQLiteDatabase db, Uri uri, ContentValues values, String selection, String[] selectionArgs) {
-        return db.update(ProviderTableMeta.DB_NAME, values, selection, selectionArgs);
+        switch (mUriMatcher.match(uri)) {
+            case DIRECTORY:
+                return updateFolderSize(db, selectionArgs[0]);
+            default:
+                return db.update(ProviderTableMeta.DB_NAME, values, selection, selectionArgs);
+        }
     }    
 
     
+    private int updateFolderSize(SQLiteDatabase db, String folderId) {
+        int count = 0;
+        String [] whereArgs = new String[] { folderId };
+        
+        // read current size saved for the folder 
+        long folderSize = 0;
+        long folderParentId = -1;
+        Uri selectFolderUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, folderId);
+        String[] folderProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
+        String folderWhere = ProviderTableMeta._ID + "=?";
+        Cursor folderCursor = query(db, selectFolderUri, folderProjection, folderWhere, whereArgs, null);
+        if (folderCursor != null && folderCursor.moveToFirst()) {
+            folderSize = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));;
+            folderParentId = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_PARENT));;
+        }
+        folderCursor.close();
+        
+        // read and sum sizes of children
+        long childrenSize = 0;
+        Uri selectChildrenUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, folderId);
+        String[] childrenProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
+        String childrenWhere = ProviderTableMeta.FILE_PARENT + "=?";
+        Cursor childrenCursor = query(db, selectChildrenUri, childrenProjection, childrenWhere, whereArgs, null);
+        if (childrenCursor != null && childrenCursor.moveToFirst()) {
+            while (!childrenCursor.isAfterLast()) {
+                childrenSize += childrenCursor.getLong(childrenCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));
+                childrenCursor.moveToNext();
+            }
+        }
+        childrenCursor.close();
+        
+        // update if needed
+        if (folderSize != childrenSize) {
+            Log_OC.d("FileContentProvider", "Updating " + folderSize + " to " + childrenSize);
+            ContentValues cv = new ContentValues();
+            cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, childrenSize);
+            count = db.update(ProviderTableMeta.DB_NAME, cv, folderWhere, whereArgs);
+            
+            // propagate update until root
+            if (folderParentId > FileDataStorageManager.ROOT_PARENT_ID) {
+                Log_OC.d("FileContentProvider", "Propagating update to " + folderParentId);
+                updateFolderSize(db, String.valueOf(folderParentId));
+            } else {
+                Log_OC.d("FileContentProvider", "NOT propagating to " + folderParentId);
+            }
+        } else {
+            Log_OC.d("FileContentProvider", "NOT updating, sizes are " + folderSize + " and " + childrenSize);
+        }
+        return count;
+    }
+
+    
     @Override
     public ContentProviderResult[] applyBatch (ArrayList<ContentProviderOperation> operations) throws OperationApplicationException {
-        //Log.d(TAG, "applying batch in provider " + this + " (temporary: " + isTemporary() + ")" );
+        Log_OC.d("FileContentProvider", "applying batch in provider " + this + " (temporary: " + isTemporary() + ")" );
         ContentProviderResult[] results = new ContentProviderResult[operations.size()];
         int i=0;
         
@@ -343,11 +417,11 @@ public class FileContentProvider extends ContentProvider {
         } finally {
             db.endTransaction();
         }
-        //Log.d(TAG, "applied batch in provider " + this);
+        Log_OC.d("FileContentProvider", "applied batch in provider " + this);
         return results;
     }
 
-    
+
     class DataBaseHelper extends SQLiteOpenHelper {
 
         public DataBaseHelper(Context context) {