public TeacherManagePasswords() {
super(new BorderLayout());
setBackground(FWCConfigurator.bgColor);
// Build title and north panel
pnNorth = new JPanel(new FlowLayout(FlowLayout.CENTER));
pnNorth.setBackground(FWCConfigurator.bgColor);
lblTitle = new TitleLabel("Reset Passwords", FWCConfigurator.RESET_PASSW_TITLE_IMG);
pnNorth.add(lblTitle);
// Build center panel
pnCenter = new JPanel(new BorderLayout());
pnCenter.setBackground(FWCConfigurator.bgColor);
// Build table of students
tableModel = new DisabledTableModel();
tableModel.setColumnIdentifiers(
new String[] {"First Name", " Last " + "Name", "Username", "Class"});
studentsTable = new JTable(tableModel);
studentsTable.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
studentsTable.setFillsViewportHeight(true);
studentsTable.getTableHeader().setFont(new Font("Calibri", Font.PLAIN, 18));
studentsTable.setFont(new Font("Calibri", Font.PLAIN, 18));
studentsTable.setRowHeight(studentsTable.getRowHeight() + 12);
// Populate the table only with students that need a password reset
students = FWCConfigurator.getTeacher().getStudentsRequestedReset();
populateTable();
tableScroll =
new JScrollPane(
studentsTable,
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
tableScroll.setBackground(FWCConfigurator.bgColor);
tableScroll.setBorder(
BorderFactory.createCompoundBorder(
new EmptyBorder(10, 100, 10, 100), new LineBorder(Color.black, 1)));
pnCenter.add(tableScroll, BorderLayout.CENTER);
// Build south panel
pnButtons = new JPanel(new FlowLayout(FlowLayout.CENTER));
pnButtons.setBackground(FWCConfigurator.bgColor);
pnButtons.setBorder(BorderFactory.createEmptyBorder(0, 100, 20, 100));
btnReset = new ImageButton("Reset Selected", FWCConfigurator.RESET_SELECTED_IMG, 150, 50);
btnReset.addActionListener(new ResetListener());
btnResetAll = new ImageButton("Reset All", FWCConfigurator.RESET_ALL_IMG, 150, 50);
btnResetAll.addActionListener(new ResetListener());
pnButtons.add(btnReset);
pnButtons.add(btnResetAll);
this.add(pnNorth, BorderLayout.NORTH);
this.add(pnCenter, BorderLayout.CENTER);
this.add(pnButtons, BorderLayout.SOUTH);
}
public void refresh() {
students = FWCConfigurator.getTeacher().getStudentsRequestedReset();
populateTable();
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == btnReset) {
// If reset selected student's password
int index = studentsTable.getSelectedRow();
// Check if selected a student
if (index >= 0) {
Student student = students.get(index);
String newPassword = student.setRandomPassword();
student.setResetPassRequested(false);
// Check database update status
if (FWCConfigurator.getDbConn().updateStudent(student)) {
// Popup with new password
JOptionPane.showMessageDialog(
null,
student.getUsername()
+ "'s password has been successfully "
+ "reset to:\n"
+ newPassword,
"Password Reset Successful",
JOptionPane.INFORMATION_MESSAGE);
} else {
JOptionPane.showMessageDialog(
null,
"Student could " + "not be updated in the database.",
"Student Update Failed",
JOptionPane.ERROR_MESSAGE);
}
} else { // No student is selected from the table
JOptionPane.showMessageDialog(
null,
"Please select a " + "student" + " from the table first.",
"Reset Password Error",
JOptionPane.INFORMATION_MESSAGE);
}
}
// If reset all students' passwords
else if (e.getSource() == btnResetAll) {
StringBuilder message =
new StringBuilder("The following " + "students' passwords have been reset.\n");
message.append(
"Please keep the new passwords in a "
+ "safe place.\n\nUsername Password\n"
+ "-------- --------");
String newPassword;
boolean error = false;
int count = 0;
for (Student student : students) {
newPassword = student.setRandomPassword();
student.setResetPassRequested(false);
// Check database update status
if (!FWCConfigurator.getDbConn().updateStudent(student)) {
JOptionPane.showMessageDialog(
null,
"Student could not be updated in the database.",
"Student Update Failed",
JOptionPane.ERROR_MESSAGE);
error = true;
break;
} else {
message.append("\n").append(student.getUsername()).append(": ").append(newPassword);
count++;
}
}
if (!error || count > 0) {
// Popup with new passwords
JOptionPane.showMessageDialog(
null,
message.toString(),
"Password Reset Successful",
JOptionPane.INFORMATION_MESSAGE);
}
}
refresh();
}