try {

            FileOutputStream out1 = new FileOutputStream(new File(localFile));
            ftp.connect(host, port);
            ftp.login(username, password);
            FTPFile f = new FTPFile();

            //ftp.retrieveFile(file, out);
            InputStream in = ftp.retrieveFileStream(file);
            ByteArrayOutputStream out = new ByteArrayOutputStream();

            byte[] buffer = new byte[1024];
            int bytesRead = 0;
            int current = 0;

            while ((bytesRead = in.read(buffer)) != -1) //keep filling the buffer until we get to the end of the file
            {
                out.write(buffer, current, bytesRead); //write the buffer to the file offset = current, length = bytesRead
                current += bytesRead; //we've progressed a little so update current
                setProgress((int)(current/size)*100); //tell progress how far we are
            }

            out.writeTo(out1);
            out.close();
            out1.close();
            in.close();

        } catch (Exception ex) {
            Logger.getLogger(DownloadThread.class.getName()).log(Level.SEVERE, null, ex);
        }