private String uploadFile(UploadedFile doc) {
        UploadedFile myDoc = doc;
        String path = null;
        if (myDoc == null) {

        } else {
            InputStream inputStream = null;
            try {

                path =
    new File("..\\images\\new_layout\\vehicle_images").getCanonicalPath() + File.separator + new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss").format(new Date()) +
    "_" + myDoc.getFilename();

                //for LOCAL testing
//                path =
//                "D:\\TRAXXEO_APPLICATION\\ViewController\\public_html\\images\\new_layout\\vehicle_images\\" +
//                 new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss").format(new java.util.Date()) + "_" + myDoc.getFilename();
                System.out.println(path + " PATH + FILENAME ");
                FileOutputStream out = new FileOutputStream(path);
                inputStream = myDoc.getInputStream();
                byte[] buffer = new byte[8192];
                int bytesRead = 0;
                while ((bytesRead = inputStream.read(buffer, 0, 8192)) != -1) {
                    out.write(buffer, 0, bytesRead);
                }
                out.flush();
                out.close();
            } catch (Exception ex) {
                log.error(ex.getMessage(), ex);
            } finally {
                try {
                    inputStream.close();
                } catch (IOException ioex) {
                    log.error(ioex.getMessage(), ioex);
                }
            }
        }
        return path;
    }