Android Open Source - AndroidLibraryProject Backup Db

• Back to Framework/framework  ↑

From Project

Back to project page AndroidLibraryProject.

License

The source code is released under:

Apache License

Java Source Code

/*****************************************************************
 * Copyright (c) 2013 by CDAC Chennai //from  w  w w  .  ja  v a 2s  . c  o  m
 * @File        SensorController
 * @Created:    01.01.2014
 * @author:     Prasenjit
 * Last Change: 13.01.2014 by Prasenjit
 ******************************************************************/
package com.contextawareframework.uploadmanager;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.nio.channels.FileChannel;

import android.content.Context;
import android.os.Environment;
/****************************************************************************
 * To take backup of the database file in rooted phone. It will copy the 
 * database file to sdcard.
 * **************************************************************************/
public class BackupDb{
  private Context localContext;
  private String pkgName;
  private File backupLocation ;
  private String fileName ;
  // Constructor
  // If user wants to specify the Backup location then here we can initialize 
  public BackupDb(Context contextFromMain,String ApplicationPkgName)
  {
    localContext = contextFromMain;
    pkgName = ApplicationPkgName;
  }
  public BackupDb(Context contextFromMain,String ApplicationPkgName, File fileLocation, String fName)
  {
    localContext = contextFromMain;
    pkgName = ApplicationPkgName;
    backupLocation = fileLocation;
    fileName = fName;
    
  }
  /*
   * Method to copy the database file to SD card
   * */
public void backupDb()
{
try {
    File sd = Environment.getExternalStorageDirectory();
    File data = Environment.getDataDirectory();
    
    if (sd.canWrite()) {
      String backupDBPath;
        String currentDBPath;
        currentDBPath = "/data/"+pkgName+"/databases/contextAwareFramework.db";
        if(fileName != null)
        {
          backupDBPath = fileName;
        }
        else{
         backupDBPath = "contextdbbkp.db";
        }
        
        File currentDB = new File(data, currentDBPath);
        File backupDB = new File(sd, backupDBPath);

        if (currentDB.exists()) {
            FileChannel src = new FileInputStream(currentDB).getChannel();
            FileChannel dst = new FileOutputStream(backupDB).getChannel();
            dst.transferFrom(src, 0, src.size());
            src.close();
            dst.close();
        }
    }
} catch (Exception e) {
  e.printStackTrace();
}
}
}

Java Source Code List

• Back to Framework/framework  ↑