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COMP101_JDBC_demo / src / main / java / ui / LoginDialog.java
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package ui;

import data.DbLoginException;
import java.awt.event.KeyEvent;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JComponent;
import javax.swing.JOptionPane;
import javax.swing.KeyStroke;

/**
 *
 * @author gdick
 */
public class LoginDialog extends javax.swing.JDialog {

    /**
     * Creates new form LoginDialog
     */
    public LoginDialog(java.awt.Frame parent, boolean modal) {
        super(parent, modal);
        initComponents();
        setLocationRelativeTo(parent);
        getRootPane().setDefaultButton(buttonLogin);
        getRootPane().registerKeyboardAction(e -> {
            System.exit(0);
        }, KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), JComponent.WHEN_IN_FOCUSED_WINDOW);
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        labelUsername = new javax.swing.JLabel();
        textUsername = new javax.swing.JTextField();
        labelPassword = new javax.swing.JLabel();
        password = new javax.swing.JPasswordField();
        buttonLogin = new javax.swing.JButton();
        buttonCancel = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("Log Into Oracle ...");

        labelUsername.setText("User Name:");

        labelPassword.setText("Password:");

        buttonLogin.setText("Login");
        buttonLogin.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                buttonLoginActionPerformed(evt);
            }
        });

        buttonCancel.setText("Cancel");
        buttonCancel.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                buttonCancelActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(buttonCancel, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(buttonLogin, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(labelUsername)
                            .addComponent(labelPassword))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(password, javax.swing.GroupLayout.DEFAULT_SIZE, 250, Short.MAX_VALUE)
                            .addComponent(textUsername))))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(textUsername, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(labelUsername))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(password, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(labelPassword))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(buttonLogin)
                    .addComponent(buttonCancel))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void buttonCancelActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonCancelActionPerformed
        System.exit(0);
    }//GEN-LAST:event_buttonCancelActionPerformed

    private void buttonLoginActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonLoginActionPerformed
        try {
            data.DatabaseUtilities.checkLogin(textUsername.getText(), password.getPassword());
            dispose();
        } catch (DbLoginException ex) {
            Logger.getLogger(LoginDialog.class.getName()).log(Level.SEVERE, null, ex);
            JOptionPane.showMessageDialog(this, "Login failed: " + ex.getLocalizedMessage());
        }
    }//GEN-LAST:event_buttonLoginActionPerformed

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton buttonCancel;
    private javax.swing.JButton buttonLogin;
    private javax.swing.JLabel labelPassword;
    private javax.swing.JLabel labelUsername;
    private javax.swing.JPasswordField password;
    private javax.swing.JTextField textUsername;
    // End of variables declaration//GEN-END:variables
}