/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package readxml;

import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;

/**
 *
 * @author NOOB
 */
public class Main extends DefaultHandler{
static boolean checkUname = false;
static boolean checkUpass = false;
static String uname = "";
static String upass = "";
static String loginName="",loginPass="";
static int choice = 0;
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        try {
            XMLReader parser = XMLReaderFactory.createXMLReader();
            Main objMain = new Main();
            parser.setContentHandler(objMain);
            parser.parse("UserInformation.xml");
            menuChoose();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    @Override
    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
        super.startElement(uri, localName, qName, attributes);
        if (qName.equals("UserName")) {
            checkUname = true;
        }
        if (qName.equals("Password")) {
            checkUpass = true;
        }
    }

    @Override
    public void characters(char[] ch, int start, int length) throws SAXException {
        super.characters(ch, start, length);
        if (checkUname) {
            uname = new String(ch,start,length);
            checkUname = false;
        }
        if (checkUpass) {
            upass = new String(ch,start,length);
            checkUpass = false;
        }
    }
public static void loginUser()
{
    do
    {
        Scanner input = new Scanner(System.in);
        System.out.println("Please enter username: ");
        loginName = input.nextLine();
        System.out.println("Please enter password");
         loginPass = input.nextLine();
        if (loginName.equals(uname)&& loginPass.equals(upass)) {
        System.out.println("Login success");
        }else
        {
        System.out.println("Login failed! Try again!");
        }
         System.out.println("Do you continue?:(1= Yes | 2=No)");
         choice = input.nextInt();
    }while(choice!=2);

}
public static void menuChoose()
{
    int chose = 0;
    Scanner input = new Scanner(System.in);
    System.out.println("Please choose your method:\n1.Login\n2.Exit\n"
            + "****************************************");
    chose = input.nextInt();
        switch(chose)
        {
            case 1:
                loginUser();
                break;
            case 2:
                System.exit(0);
                break;
            default:
               System.out.println("Invalid choice!!!");
               break;
        }
    }
}