PBO - ETS - e-Toll Study Case

1. Buatlah sketsa dan beri penjelasan rancangan kelas yang akan digunakan untuk membuat mesin GTO
     - Rancangan class yang akan digunakan adalah:
          - Ada class tersendiri untuk mengatur database pengguna e-Toll
          - Ada class tersendiri untuk mengatur output (message dan errormassage)
          - Ada class tersendiri untuk mengatur output hasil (bukti transaksi pembayaran)
          - Ada class khusus untuk menghandle kegiatan transaksi (pengurangan saldo dan pengecekan saldo)

2. Buatlah rancangan output dari program yang akan dibuat
      - Output untuk mengeluarkan pesan biasa, seperti
          - Selamat Datang, Silahkan tempel kartu E-Toll anda
      - Output untuk menghandle error, seperti
          - User ID tidak diketahui!. Silahkan coba lagi
          - Pembayaran gagal dilakukan! Silahkan cek saldo anda
     - Output untuk menghandle best case, dalam hal ini pembayaran berhasil dilakukan, seperti
          - Pembayaran berhasil dilakukan! Silahkan mengambil struk anda
     - Output bukti transaksi

	package etsToll;
	public class DatabaseToll {
	private ETollData[] eTollData;
	public DatabaseToll() {
	eTollData = new ETollData[2];
	eTollData[0] = new ETollData(1000, 100000);
	eTollData[1] = new ETollData(1001, 5000);
	}
	private ETollData geteTollID(int eTollID) {
	for (ETollData currentAccount : eTollData) {
	if (currentAccount.geteTollID() == eTollID)
	return currentAccount;
	}
	return null;
	}
	public boolean authenticateUser(int userAccountNumber) {
	ETollData userAccount = geteTollID(userAccountNumber);
	if (userAccount != null)
	return true;
	else
	return false;
	}
	public double getAvailableBalance(int eTollID) {
	return geteTollID(eTollID).getAvailableBalance();
	}
	public void isPay(int eTollID, double amount) {
	geteTollID(eTollID).isPay(amount);
	}
	}

view raw DatabaseToll.java hosted with ❤ by GitHub

	package etsToll;
	public class ETollData {
	private int eTollID;
	private double availableBalance;
	public ETollData(int eTollID, double availableBalance) {
	this.eTollID = eTollID;
	this.availableBalance = availableBalance;
	}
	public double getAvailableBalance() {
	return availableBalance;
	}
	public void isPay(double amount) {
	availableBalance -= amount;
	}
	public int geteTollID() {
	return eTollID;
	}
	}

view raw ETollData.java hosted with ❤ by GitHub

	package etsToll;
	import java.util.Scanner;
	public class GetInput {
	private Scanner input;
	public GetInput() {
	input = new Scanner(System.in);
	}
	public int getInput() {
	return input.nextInt();
	}
	}

view raw GetInput.java hosted with ❤ by GitHub

	package etsToll;
	public class MainToll {
	public static void main(String[] args) {
	Toll runToll = new Toll();
	runToll.runToll();
	}
	}

view raw MainToll.java hosted with ❤ by GitHub

	package etsToll;
	public class Pay extends Transaction {
	int credit;
	boolean isDone = false;
	public Pay(int eTollID, ScreenToll screenToll, DatabaseToll databaseToll) {
	super(eTollID, screenToll, databaseToll);
	}
	@Override
	public void execute() {
	double availableBalance;
	ScreenToll screenToll = getScreen();
	DatabaseToll tollDatabase = getTollDatabase();
	PrintResult screenResult;
	do {
	availableBalance = tollDatabase.getAvailableBalance(geteTollID());
	if(availableBalance >= 5000) {
	screenResult = new PrintResult(availableBalance - 5000);
	tollDatabase.isPay(geteTollID(), 5000);
	isDone = true;
	screenToll.displayMessage("Pembayaran berhasil dilakukan! Silahkan mengambil struk anda\n");
	screenToll.displayMessage("Membuka gerbang ....\n\n\n");
	screenResult.displayPrint();
	} else {
	screenToll.displayErrorMessage("Pembayaran gagal dilakukan! Silahkan cek saldo anda\n");
	isDone = true;
	}
	} while(!isDone);
	}
	}

view raw Pay.java hosted with ❤ by GitHub

	package etsToll;
	import java.text.SimpleDateFormat;
	import java.util.Calendar;
	public class PrintResult {
	double availableBalance;
	public PrintResult(double availableBalance) {
	this.availableBalance = availableBalance;
	}
	public void displayPrint() {
	Calendar cal = Calendar.getInstance();
	SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
	System.out.println("###########JASAMARGA###########");
	System.out.println("###########PALIMANAN###########\n");
	System.out.println(sdf.format(cal.getTime()));
	System.out.println("Seri: xxxxxx");
	System.out.println("Asal Gerbang: 04 (Brebes Timur)\n");
	System.out.println("Gol-1 e-Toll Mandiri Rp. 5000.0");
	System.out.println("Sisa Saldo Rp. " + String.valueOf(availableBalance));
	System.out.println("###############################");
	System.out.println("###############################\n\n\n");
	}
	}

view raw PrintResult.java hosted with ❤ by GitHub

	package etsToll;
	public class ScreenToll {
	public void displayMessage(String message) {
	System.out.print(message);
	}
	public void displayErrorMessage(String message) {
	System.out.print(message);
	}
	public void displayCredit(double amount) {
	System.out.printf("$%,.2f", amount);
	}
	}

view raw ScreenToll.java hosted with ❤ by GitHub

	package etsToll;
	public class Toll {
	private ScreenToll screenToll;
	private GetInput getInput;
	private DatabaseToll databaseToll;
	private boolean userAuth = false;
	private int accID;
	public Toll() {
	screenToll = new ScreenToll();
	getInput = new GetInput();
	databaseToll = new DatabaseToll();
	userAuth = false;
	accID = 0;
	}
	public void runToll() {
	while(true) {
	while(!userAuth) {
	screenToll.displayMessage("Selamat Datang!\n");
	authenticateUser();
	}
	doTransaction();
	userAuth = false;
	accID = 0;
	}
	}
	private void authenticateUser() {
	screenToll.displayMessage("Silahkan tempel kartu E-Toll anda\n");
	int eTollID = getInput.getInput();
	userAuth = databaseToll.authenticateUser(eTollID);
	if (userAuth)
	{
	accID = eTollID;
	} else
	screenToll.displayErrorMessage("User ID tidak diketahui!. Silahkan coba lagi\n");
	}
	private void doTransaction() {
	Transaction userTransaction = null;
	boolean userDone = false;
	while(!userDone) {
	userTransaction = createTransaction();
	userTransaction.execute();
	userDone = true;
	}
	}
	private Transaction createTransaction() {
	screenToll.displayMessage("Harap tunggu\n");
	Transaction temp = new Pay(accID, screenToll, databaseToll);
	return temp;
	}
	}

view raw Toll.java hosted with ❤ by GitHub

	package etsToll;
	public abstract class Transaction {
	int eTollID;
	private ScreenToll screenToll;
	private DatabaseToll databaseToll;
	public Transaction(int eTollID, ScreenToll screenToll, DatabaseToll databaseToll) {
	this.eTollID = eTollID;
	this.screenToll = screenToll;
	this.databaseToll = databaseToll;
	}
	public int geteTollID() {
	return eTollID;
	}
	public ScreenToll getScreen() {
	return screenToll;
	}
	public DatabaseToll getTollDatabase() {
	return databaseToll;
	}
	abstract public void execute();
	}

view raw Transaction.java hosted with ❤ by GitHub

Output