assignmentPRA

// ------------http://www.mkyong.com/java/how-to-read-xml-file-in-java-dom-parser/
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Scanner;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

static String [] sales_ID = new String [doc2_List.getLength()];

public class Assignment_1 {

	public static void main(String[] args) throws Exception, IOException{
		// TODO Auto-generated method stub

		Scanner input = new Scanner (System.in);

	}

// ==================================================ADMIN=============================================================
		public static void loadFileAdmin(){
	        Scanner input=new Scanner(System.in);



	            System.out.print("Enter Path for admin : ");
	    		String adminPath = input.nextLine();

	    		Document doc1 = null;
	    		DocumentBuilder dBuilder1 = null;

	    		File admin_File = new File(adminPath);

	    	try {
	    		DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
	    		dBuilder1 = dbFactory.newDocumentBuilder();
	    		doc1 = dBuilder1.parse(admin_File);


	        doc1.getDocumentElement().normalize();

			System.out.println("Root element :" + doc1.getDocumentElement().getNodeName());

			NodeList doc1_List = doc1.getElementsByTagName("admin");

			System.out.println("----------------------------");

			String [] admin_ID = new String [doc1_List.getLength()];
			String [] admin_Name = new String [doc1_List.getLength()];
			String [] admin_Password = new String [doc1_List.getLength()];


			for (int k = 0; k < doc1_List.getLength(); k++) { //-------nList tukar doc1_List

				Node nNode = doc1_List.item(k);

					if (nNode.getNodeType() == Node.ELEMENT_NODE) {

						Element eElement = (Element) nNode;

						admin_ID [k] = eElement.getElementsByTagName("id").item(0).getTextContent();
						admin_Name [k] = eElement.getElementsByTagName("name").item(0).getTextContent();
						admin_Password [k] = eElement.getElementsByTagName("password").item(0).getTextContent();

					} // ==============Close if
			}
	    	}// ================Close for
	        catch (Exception e) {
	            // TODO: handle exception
	            System.out.println("File not found. Please Try Again.");
	            System.out.println();
	            loadFileAdmin();
	        }
		}



	   /*

	    }
		System.out.println("Enter Path for admin : ");
		String adminPath = input.nextLine();

		Document doc1 = null;
		DocumentBuilder dBuilder1 = null;

		File admin_File = new File(adminPath);

		try {

		DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
		dBuilder1 = dbFactory.newDocumentBuilder();
		doc1 = dBuilder1.parse(admin_File);
		}

		catch (Exception e) {}

		//optional, but recommended
		//read this - http://stackoverflow.com/questions/13786607/normalization-in-dom-parsing-with-java-how-does-it-work

		doc1.getDocumentElement().normalize();

		System.out.println("Root element :" + doc1.getDocumentElement().getNodeName());

		NodeList doc1_List = doc1.getElementsByTagName("admin");

		System.out.println("----------------------------");

		String [] admin_ID = new String [doc1_List.getLength()];
		String [] admin_Name = new String [doc1_List.getLength()];
		String [] admin_Password = new String [doc1_List.getLength()];


		for (int temp = 0; temp < doc1_List.getLength(); temp++) { //-------nList tukar doc1_List

			Node nNode = doc1_List.item(temp);

				if (nNode.getNodeType() == Node.ELEMENT_NODE) {

					Element eElement = (Element) nNode;

					admin_ID [temp] = eElement.getElementsByTagName("id").item(0).getTextContent();
					admin_Name [temp] = eElement.getElementsByTagName("name").item(0).getTextContent();
					admin_Password [temp] = eElement.getElementsByTagName("password").item(0).getTextContent();

				} // ==============Close if
		}// ================Close for

		*/


// ==================================================SALES=============================================================
			public static void loadFileSales(){
		        Scanner input=new Scanner(System.in);



		            System.out.print("Enter Path for Sales : ");
		    		String salesPath = input.nextLine();

		    		Document doc2 = null;
		    		DocumentBuilder dBuilder2 = null;

		    		File sales_File = new File(salesPath);

		    	try {
		    		DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
		    		dBuilder2 = dbFactory.newDocumentBuilder();
		    		doc2 = dBuilder2.parse(sales_File);


		        doc2.getDocumentElement().normalize();

				System.out.println("Root element :" + doc2.getDocumentElement().getNodeName());

				NodeList doc2_List = doc2.getElementsByTagName("salesperson");

				System.out.println("----------------------------");

				String [] sales_ID = new String [doc2_List.getLength()];
				String [] sales_Name = new String [doc2_List.getLength()];
				String [] sales_Password = new String [doc2_List.getLength()];


				for (int k = 0; k < doc2_List.getLength(); k++) { //-------nList tukar doc1_List

					Node nNode = doc2_List.item(k);

						if (nNode.getNodeType() == Node.ELEMENT_NODE) {

							Element eElement = (Element) nNode;

							sales_ID [k] = eElement.getElementsByTagName("id").item(0).getTextContent();
							sales_Name [k] = eElement.getElementsByTagName("name").item(0).getTextContent();
							sales_Password [k] = eElement.getElementsByTagName("password").item(0).getTextContent();

						} // ==============Close if
				}
		    	}// ================Close for
		        catch (Exception e) {
		            // TODO: handle exception
		            System.out.println("File not found. Please Try Again.");
		            System.out.println();
		            loadFileSales();
		        }
			}



// ==================================================SALES=============================================================
		/*
				System.out.println("Enter Path for Salesperson : ");
				String salesPath = input.nextLine();

				Document doc2 = null;
				DocumentBuilder dBuilder2 = null;

				File sales_File = new File(salesPath);

				try {

				DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
				dBuilder2 = dbFactory.newDocumentBuilder();
				doc1 = dBuilder2.parse(admin_File);
				}

				catch (Exception e) {}

				//optional, but recommended
				//read this - http://stackoverflow.com/questions/13786607/normalization-in-dom-parsing-with-java-how-does-it-work

				doc1.getDocumentElement().normalize();

				System.out.println("Root element :" + doc1.getDocumentElement().getNodeName());

				NodeList doc2_List = doc1.getElementsByTagName("salesperson");

				System.out.println("----------------------------");

				String [] salesperson_ID = new String [doc2_List.getLength()];
				String [] salesperson_Name = new String [doc2_List.getLength()];
				String [] salesperson_Password = new String [doc2_List.getLength()];


				for (int temp = 0; temp < doc2_List.getLength(); temp++) { //-------nList tukar doc1_List

					Node nNode = doc2_List.item(temp);

						if (nNode.getNodeType() == Node.ELEMENT_NODE) {

							Element eElement = (Element) nNode;

							salesperson_ID [temp] = eElement.getElementsByTagName("id").item(0).getTextContent();
							salesperson_Name [temp] = eElement.getElementsByTagName("name").item(0).getTextContent();
							salesperson_Password [temp] = eElement.getElementsByTagName("password").item(0).getTextContent();

						} // ==============Close if
				}// ================Close for
*/

// ==================================================LOGIN=============================================================

		public static void Login(){
			Scanner input=new Scanner(System.in);

		while (true){

			for (int a = 0; a<3; a++) {

			System.out.print("Enter ID: ");
			String IDSales = input.nextLine();

			System.out.print("Password: ");
			String passwordSales = input.nextLine();

			MessageDigest m = MessageDigest.getInstance("MD5");
			m.reset();
			m.update(passwordSales.getBytes());

			byte[] digest = m.digest();
			BigInteger bigInt = new BigInteger(1,digest);
			String hashtext = bigInt.toString(16);
			// Now we need to zero pad it if you actually want the full 32 chars.
			while(hashtext.length() < 32 ){
			  hashtext = "0"+hashtext;
			}


			//boolean IDBoolean = Arrays.asList (sales_ID).contains(IDSales);
			//boolean PasswordBoolean = Arrays.asList(sales_Password).contains(passwordSales);

			if (Arrays.asList (sales_ID).contains(IDSales) == true && Arrays.asList(sales_Password).contains(passwordSales) == true){ // untuk sales
				System.out.println("Access Granted");
				break;
			}
			else if{ /////untuk admin
				System.out.println("");
			}else
		}



		for (int a = 0; a<3; a++) {
			System.out.print("Username: ");
			String username = input.nextLine();
			System.out.print("Password: ");
			String password = input.nextLine();


		MessageDigest m = MessageDigest.getInstance("MD5");
		m.reset();
		m.update(password.getBytes());

		byte[] digest = m.digest();
		BigInteger bigInt = new BigInteger(1,digest);
		String hashtext = bigInt.toString(16);
		// Now we need to zero pad it if you actually want the full 32 chars.
		while(hashtext.length() < 32 ){
		  hashtext = "0"+hashtext;
		}
		}


		} // ----------close try
		catch (Exception e) {
			e.printStackTrace();
		} // ----------close catch
}
}