src/com/owncloud/android/db/DbHandler.java

   1 /* ownCloud Android client application
   2  *
   3  *   @author Bartek Przybylski
   4  *   Copyright (C) 2011-2012  Bartek Przybylski
   5  *   Copyright (C) 2012-2013 ownCloud Inc.
   6  *
   7  *   This program is free software: you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License version 2,
   9  *   as published by the Free Software Foundation.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20 package com.owncloud.android.db;
  21
  22 import com.owncloud.android.MainApp;
  23 import com.owncloud.android.lib.common.utils.Log_OC;
  24
  25 import android.content.ContentValues;
  26 import android.content.Context;
  27 import android.database.Cursor;
  28 import android.database.sqlite.SQLiteDatabase;
  29 import android.database.sqlite.SQLiteOpenHelper;
  30
  31 /**
  32  * Custom database helper for ownCloud
  33  */
  34 public class DbHandler {
  35     private SQLiteDatabase mDB;
  36     private OpenerHelper mHelper;
  37     private final String mDatabaseName;
  38     private final int mDatabaseVersion = 3;
  39
  40     private final String TABLE_INSTANT_UPLOAD = "instant_upload";
  41
  42     public static final int UPLOAD_STATUS_UPLOAD_LATER = 0;
  43     public static final int UPLOAD_STATUS_UPLOAD_FAILED = 1;
  44
  45     public DbHandler(Context context) {
  46         mDatabaseName = MainApp.getDBName();
  47         mHelper = new OpenerHelper(context);
  48         mDB = mHelper.getWritableDatabase();
  49     }
  50
  51     public void close() {
  52         mDB.close();
  53     }
  54
  55     public boolean putFileForLater(String filepath, String account, String message) {
  56         ContentValues cv = new ContentValues();
  57         cv.put("path", filepath);
  58         cv.put("account", account);
  59         cv.put("attempt", UPLOAD_STATUS_UPLOAD_LATER);
  60         cv.put("message", message);
  61         long result = mDB.insert(TABLE_INSTANT_UPLOAD, null, cv);
  62         Log_OC.d(TABLE_INSTANT_UPLOAD, "putFileForLater returns with: " + result + " for file: " + filepath);
  63         return result != -1;
  64     }
  65
  66     public int updateFileState(String filepath, Integer status, String message) {
  67         ContentValues cv = new ContentValues();
  68         cv.put("attempt", status);
  69         cv.put("message", message);
  70         int result = mDB.update(TABLE_INSTANT_UPLOAD, cv, "path=?", new String[] { filepath });
  71         Log_OC.d(TABLE_INSTANT_UPLOAD, "updateFileState returns with: " + result + " for file: " + filepath);
  72         return result;
  73     }
  74
  75     public Cursor getAwaitingFiles() {
  76         return mDB.query(TABLE_INSTANT_UPLOAD, null, "attempt=" + UPLOAD_STATUS_UPLOAD_LATER, null, null, null, null);
  77     }
  78
  79     public Cursor getFailedFiles() {
  80         return mDB.query(TABLE_INSTANT_UPLOAD, null, "attempt>" + UPLOAD_STATUS_UPLOAD_LATER, null, null, null, null);
  81     }
  82
  83     public void clearFiles() {
  84         mDB.delete(TABLE_INSTANT_UPLOAD, null, null);
  85     }
  86
  87     /**
  88      *
  89      * @param localPath
  90      * @return true when one or more pending files was removed
  91      */
  92     public boolean removeIUPendingFile(String localPath) {
  93         long result = mDB.delete(TABLE_INSTANT_UPLOAD, "path = ?", new String[] { localPath });
  94         Log_OC.d(TABLE_INSTANT_UPLOAD, "delete returns with: " + result + " for file: " + localPath);
  95         return result != 0;
  96
  97     }
  98
  99     private class OpenerHelper extends SQLiteOpenHelper {
 100         public OpenerHelper(Context context) {
 101             super(context, mDatabaseName, null, mDatabaseVersion);
 102         }
 103
 104         @Override
 105         public void onCreate(SQLiteDatabase db) {
 106             db.execSQL("CREATE TABLE " + TABLE_INSTANT_UPLOAD + " (" + " _id INTEGER PRIMARY KEY, " + " path TEXT,"
 107                     + " account TEXT,attempt INTEGER,message TEXT);");
 108         }
 109
 110         @Override
 111         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 112             if (oldVersion < 2) {
 113                 db.execSQL("ALTER TABLE " + TABLE_INSTANT_UPLOAD + " ADD COLUMN attempt INTEGER;");
 114             }
 115             db.execSQL("ALTER TABLE " + TABLE_INSTANT_UPLOAD + " ADD COLUMN message TEXT;");
 116         }
 117
 118         @Override
 119         public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 120             //downgrading is the exception, so deleting and re-creating is acceptable.
 121             //otherwise exception will be thrown (cannot downgrade) and oc app will crash.
 122             db.execSQL("DROP TABLE IF EXISTS " + TABLE_INSTANT_UPLOAD + ";");
 123             onCreate(db);
 124         }
 125     }
 126 }