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- public class EmployeeSignIn extends JFrame implements ActionListener {
- private JLabel lblUsername, lblPassword;
- private JTextField txtUsername;
- private JPasswordField jpfPassword;
- private JButton btnSubmit;
- private JPanel pnlButton, pnlLogo, pnlComponents1, pnlComponents2;
- private Socket socket;
- private ObjectOutputStream oos;
- private ObjectInputStream ois;
- private void initializeStreamComponents() {
- try {
- socket = new Socket("localhost", 4200);
- oos = new ObjectOutputStream(socket.getOutputStream());
- ois = new ObjectInputStream(socket.getInputStream());
- } catch (IOException e) {
- System.err.println(e.getMessage());
- }
- }
- private void initComponent() {
- initializeStreamComponents();
- lblUsername = new JLabel("Username");
- lblPassword = new JLabel("Password");
- txtUsername = new JTextField();
- jpfPassword = new JPasswordField();
- btnSubmit = new JButton("Sign In");
- pnlButton = new JPanel();
- pnlLogo = new JPanel(new GridLayout(1, 2));
- pnlComponents1 = new JPanel(new GridLayout(1, 2, 3, 3));
- pnlComponents2 = new JPanel(new GridLayout(1, 2, 3, 3));
- }
- private void addComponentsToPanel() {
- pnlLogo.add(new JLabel(new ImageIcon("img/app.png")));
- pnlComponents1.add(lblUsername);
- pnlComponents1.add(txtUsername);
- pnlComponents2.add(lblPassword);
- pnlComponents2.add(jpfPassword);
- pnlButton.add(btnSubmit);
- }
- private void addPanelsToWindow() {
- Container container = getContentPane();
- container.add(pnlLogo);
- container.add(pnlComponents1);
- container.add(pnlComponents2);
- container.add(pnlButton);
- }
- private void registerListeners() {
- btnSubmit.addActionListener(this);
- }
- private void setWindowProperties() {
- this.setTitle("ARD-Employee");
- this.setLayout(new GridLayout(4, 2));
- this.setVisible(true);
- this.setSize(450, 200);
- this.setResizable(false);
- this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
- this.setLocationRelativeTo(null);
- }
- public EmployeeSignIn() {
- this.initComponent();
- this.addComponentsToPanel();
- this.addPanelsToWindow();
- this.registerListeners();
- this.setWindowProperties();
- }
- private boolean validateFields() {
- if (!textFieldCheck(txtUsername)) {
- txtUsername.grabFocus();
- System.out.println(1);
- System.out.println("Please enter your username");
- System.out.println(2);
- return false;
- }
- if (!textFieldCharacterCheck(txtUsername)) {
- txtUsername.grabFocus();
- System.out.println("No Special Characters Allowed in Username!");
- return false;
- }
- if (!passwordFieldCheck(jpfPassword)) {
- jpfPassword.grabFocus();
- System.out.println("Please Enter your Password!");
- return false;
- }
- return true;
- }
- private boolean textFieldCheck(JTextField field) {
- if (field.getText().trim().isEmpty()) {
- field.grabFocus();
- return false;
- }
- return true;
- }
- private boolean passwordFieldCheck(JPasswordField field) {
- String password = new String(field.getPassword());
- if (password.trim().isEmpty()) {
- return false;
- }
- return true;
- }
- private boolean textFieldCharacterCheck(JTextField field) {
- return field.getText().matches("^\d+$");
- }
- public String getUsername() {
- return txtUsername.getText();
- }
- public String getPassword() {
- return new String(jpfPassword.getPassword());
- }
- @Override
- public void actionPerformed(ActionEvent e) {
- JButton src = (JButton) e.getSource();
- if (src.equals(btnSubmit)) {
- if (validateFields()) {
- sendStreamsToServer();
- }
- }
- }
- private void sendStreamsToServer() {
- try {
- String userType = "employee";
- oos.writeObject(userType);
- oos.writeObject(this.getUsername());
- System.out.println("USERNAME: " + this.getUsername());
- oos.writeObject(this.getPassword());
- System.out.println("PASSWORD: " + this.getPassword());
- String readObj = (String) ois.readObject();
- System.out.println("READ OBJECT: " + readObj);
- boolean validationCheck = (boolean) ois.readObject();
- System.out.println("Employee/VALIDATION CHECK: " + validationCheck);
- } catch (IOException e1) {
- System.err.println(e1.getMessage());
- } catch (ClassNotFoundException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- private void closeConnection() {
- try {
- oos.close();
- ois.close();
- } catch (IOException e) {
- System.err.println(e.getMessage());
- }
- }
- public static void main(String[] args) {
- new EmployeeSignIn();
- }
- }
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