Entiteti

package loadFiles;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

import buyers.Buyer;
import employees.Administrator;
import employees.Supplier;
import enumeration.EnumGender;
import enumeration.EnumVehicle;
import user.Users;

public class LoadE {


	private static ArrayList<Users> users = new ArrayList<Users>();
	private static  ArrayList<Buyer> buyer = new ArrayList<Buyer>();
	private static  ArrayList<Administrator> admin = new ArrayList<Administrator>();
	private static ArrayList<Supplier> supplier = new ArrayList<Supplier>();

	public LoadE() {
		LoadE.users = new ArrayList<Users>();
		LoadE.buyer = new ArrayList<Buyer>();
		LoadE.admin = new ArrayList<Administrator>();
		LoadE.supplier = new ArrayList<Supplier>();
	}


	public static ArrayList<Users> getUsers() {
		return users;
	}

	public static Users uName(String uname) {
		for(Users u: users) {
			if(u.getUsername().equals(uname)) {
				return u;
			}
		}
		return null;
	}


	public static ArrayList<Buyer> getBuyer() {
		return buyer;
	}

	public static Buyer bName(String uname) {
		for(Buyer b: buyer) {
			if(b.getUsername().equals(uname)) {
				return b;
			}
		}
		return null;
	}


	public static void deleteBuyer(Buyer index) {
		LoadE.buyer.remove(index);
	}

	public static ArrayList<Administrator> getAdmin() {
		return admin;
	}

	public static Administrator aName(String uname) {
		for(Administrator a:admin) {
			if(a.getUsername().equals(uname))
				return a;
		}
		return null;
	}

	public static void deleteAdmin(Administrator adm) {
		LoadE.admin.remove(adm);
	}

	public static ArrayList<Supplier> getSupplier() {
		return supplier;
	}

	public static Supplier sName(String uname) {
		for(Supplier s: supplier) {
			if(s.getUsername().equals(uname)) {
				return s;
			}
		}
		return null;
	}

	public static void deleteSupplier(Supplier supl) {
		LoadE.supplier.remove(supl);
	}

	public static void readBuyers() {

		try {
			File buyerFile = new File("src/projectData/buyers.txt");
			BufferedReader reader = new BufferedReader(new FileReader(buyerFile));
			String line;
			while((line = reader.readLine()) != null) {
				String[] splitLine = line.split("\\|");
				String name = splitLine[0];
				String surname = splitLine[1];
				int genderInt = Integer.parseInt(splitLine[2]);
				EnumGender gender = EnumGender.valueOf(genderInt);
				String username = splitLine[3];
				String password = splitLine[4];
				String address = splitLine[5];
				String phoneNum = splitLine[6];
				Buyer b = new Buyer(name, surname, gender, username, password, address, phoneNum);
				buyer.add(b);


			}
			reader.close();
		}
		catch(IOException e) {
			System.out.println("Greska prilikom ucitavanja fajla buyers.");
		}

	}

	public static void readAdmins() {
		try {
			File adminFile = new File("src/projectData/admins.txt");
			BufferedReader readAdmin = new BufferedReader(new FileReader(adminFile));
			String line1;
			while((line1 = readAdmin.readLine()) != null) {
				String[] splitAdmin = line1.split("\\|");
				String name = splitAdmin[0];
				String surname = splitAdmin[1];
				int genderInt = Integer.parseInt(splitAdmin[2]);
				EnumGender gender = EnumGender.valueOf(genderInt);
				String username = splitAdmin[3];
				String password = splitAdmin[4];
				String JMBG = splitAdmin[5];
				double salary = Double.parseDouble(splitAdmin[6]);
				Administrator a = new Administrator(name, surname, gender, username, password, JMBG, salary);
				admin.add(a);
			}
			readAdmin.close();
		}
		catch(IOException e) {
			System.out.println("Greska prilikom ucitavanja fajla admins.");
		}
	}

	public static void readSuppliers() {
		try {
			File supplierFile = new File("src/projectData/suppliers.txt");
			BufferedReader readSupplier = new BufferedReader(new FileReader(supplierFile));
			String line2;
			while((line2 = readSupplier.readLine()) != null) {
				String[] splitSupplier = line2.split("\\|");
				String name = splitSupplier[0];
				String surname = splitSupplier[1];
				int genderInt = Integer.parseInt(splitSupplier[2]);
				EnumGender gender = EnumGender.valueOf(genderInt);
				String username = splitSupplier[3];
				String password = splitSupplier[4];
				String JMBG = splitSupplier[5];
				double salary = Double.parseDouble(splitSupplier[6]);
				String driversLicence = splitSupplier[7];
				int vehicleTypeInt = Integer.parseInt(splitSupplier[8]);
				EnumVehicle vehicleType = EnumVehicle.valueOf(vehicleTypeInt);
				Supplier s = new Supplier(name, surname, gender, username, password, JMBG, salary, driversLicence, vehicleType);
				supplier.add(s);

			}
			readSupplier.close();
		}
		catch(IOException e) {
			System.out.println("Greska prilikom citanja fajla suppliers.");
		}
	}

	public static void addUsers() {
		readBuyers();
		readAdmins();
		readSuppliers();
		for(int i = 0; i < buyer.size(); i++) {
			System.out.println(buyer);
			users.addAll(buyer);
		}
		for(int i = 0; i < admin.size(); i++) {
			System.out.println(admin);
			users.addAll(admin);
		}
		for(int i = 0; i < supplier.size(); i++) {
			System.out.println(supplier);
			users.addAll(supplier);
		}
	}

	public static void writeBuyers() {
			try {
				File file = new File("src/projectData/buyers.txt");
				BufferedWriter writer = new BufferedWriter(new FileWriter(file));
				if(!file.exists()) {
					try {
						file.createNewFile();
					} catch (IOException e) {
						e.printStackTrace();
					}
					System.out.println("Kreiran novi fajl.");
				}else {
					System.out.println("Fajl vec postoji.");
				}
				String content = "";
				for(Buyer b: buyer) {
					content += b.getName() + "|" + b.getSurname() + "|" + EnumGender.toInt(b.getGender()) + "|" +
								b.getUsername() + "|" + b.getPassword() + "|" + b.getAddress() + "|" + b.getPhoneNum() + "\n";
				}
				writer.write(content);
				writer.flush();
				writer.close();
			}
			catch(IOException e) {
				e.printStackTrace();
			}

		}

	public static void writeAdmins() {
		try {
			File file = new File("src/projectData/buyers.txt");
			BufferedWriter writer = new BufferedWriter(new FileWriter(file));
			if(!file.exists()) {
				try {
					file.createNewFile();
				} catch (IOException e) {
					e.printStackTrace();
				}
				System.out.println("Kreiran novi fajl.");
			}else {
				System.out.println("Fajl vec postoji.");
			}
			String content = "";
			for(Administrator a: admin) {
				content += a.getName() + "|" + a.getSurname() + "|" + EnumGender.toInt(a.getGender()) + "|" +
							a.getUsername() + "|" + a.getPassword() + "|" + a.getJMBG() + "|" + a.getSalary() + "\n";
			}
			writer.write(content);
			writer.flush();
			writer.close();
		}
		catch(IOException e) {
			e.printStackTrace();
		}
	}

	public static void writeSuppliers() {
		try {
			File file = new File("src/projectData/buyers.txt");
			BufferedWriter writer = new BufferedWriter(new FileWriter(file));
			if(!file.exists()) {
				try {
					file.createNewFile();
				} catch (IOException e) {
					e.printStackTrace();
				}
				System.out.println("Kreiran novi fajl.");
			}else {
				System.out.println("Fajl vec postoji.");
			}
			String content = "";
			for(Supplier s: supplier) {
				content += s.getName() + "|" + s.getSurname() + "|" + EnumGender.toInt(s.getGender()) + "|" +
							s.getUsername() + "|" + s.getPassword() + "|" + s.getJMBG() + "|" + s.getSalary() + "|" +
							s.getDriversLicence() + "|" + s.getVehicleType() + "\n";
			}
			writer.write(content);
			writer.flush();
			writer.close();
		}
		catch(IOException e) {
			e.printStackTrace();
		}
	}

}