Rungeek's Java Shutdown Program

About:

A quick shutdown program I wrote in Java. Just enter a date/time and click Shutdown. When the time hits then your computer will try and shutdown.

It works cross-platform, Windows, Mac, *nix. If you run it in Mac/*nix then you need to run it as root (sudo).
To run as admin on a Mac for example: sudo java -jar Shutdown.jar

Download

Get it here!

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Code:

Here is teh code. You can download the file here.

package com.rungeek.shutdown;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

public class Shutdown extends JPanel {

    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");

    Date shutdownDate;

    private static final long serialVersionUID = 1L;

    public Shutdown() {
        super(new BorderLayout());
        Date date = new Date();
        // Create input panel
        JPanel inputPanel = new JPanel(new BorderLayout());
        JPanel layoutPanel = new JPanel(new BorderLayout());
        // Create date label
        JLabel lblDate = new JLabel("Date");
        // Create date input
        final JTextField txtDate = new JTextField(dateFormat.format(date));
        // Create Shutdown label
        final JLabel lblShutdown = new JLabel("Time Not Set");
        // Create Shutdown button
        final JButton btnShutdown = new JButton(new AbstractAction("Shutdown") {
            private static final long serialVersionUID = 1L;

            public void actionPerformed(ActionEvent e) {
                try {
                    shutdownDate = dateFormat.parse(txtDate.getText());
                    lblShutdown.setText("Shutdown at: " + dateFormat.format(shutdownDate));
                    Thread thread = new Thread(new Runnable() {
                        public void run() {
                            txtDate.setEnabled(false);
                            while (new Date().before(shutdownDate)) {
                                txtDate.setText(dateFormat.format(new Date()));
                                try {
                                    Thread.sleep(1000);
                                } catch (InterruptedException e1) {
                                }
                            }
                            try {
                                shutdown();
                            } catch (Exception se) {
                                se.printStackTrace();
                            }
                        }
                    });
                    thread.start();

                } catch (ParseException e1) {
                    JOptionPane.showMessageDialog(null, "Error Parsing Date.", "Bad Date Entered", 0);
                    System.out.println("Sorry Bad Date Entered");
                }
            }
        });

        // Add to Panel
        inputPanel.add(lblDate, BorderLayout.WEST);
        inputPanel.add(txtDate, BorderLayout.CENTER);
        layoutPanel.add(inputPanel, BorderLayout.NORTH);
        layoutPanel.add(btnShutdown, BorderLayout.SOUTH);
        layoutPanel.add(lblShutdown, BorderLayout.CENTER);

        // Add the panel to the Main Panel
        this.add(layoutPanel, BorderLayout.CENTER);
    }

    private static void createAndShowGUI() {
        // Create and set up the window.
        JFrame frame = new JFrame("Rungeek's Shutdown Program");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Add content to the window.
        frame.add(new Shutdown());

        // Display the window.
        frame.pack();
        frame.setSize(300, 100);
        frame.setVisible(true);
    }

    public static void main(String[] args) throws InterruptedException, RuntimeException, IOException {
        if (args.length > 0) {
            int mins = Integer.parseInt(args[0]);
            int seconds = mins * 60;
            DateFormat format = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
            Date date = new Date();
            System.out.println(format.format(date));
            System.out.println("Shutting down in :" + seconds + " seconds");
            // Sleep for that many seconds
            for (int i = 0; i <= seconds; i++) {
                Thread.sleep(1000); // 1 second sleep
            }
            shutdown();
        } else {
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    createAndShowGUI();
                }
            });
        }
    }

    public static void shutdown() throws RuntimeException, IOException, InterruptedException {
        String shutdownCommand;
        String operatingSystem = System.getProperty("os.name");

        if (operatingSystem.toLowerCase().contains("linux") || operatingSystem.toLowerCase().contains("mac")) {
            shutdownCommand = "shutdown -h now";
        } else if (operatingSystem.toLowerCase().contains("windows")) {
            shutdownCommand = "shutdown.exe -s -t 0";
        } else {
            throw new RuntimeException("Unsupported operating system.");
        }

        System.out.println("Shutting down " + operatingSystem);
        Process proc = Runtime.getRuntime().exec(shutdownCommand);
        proc.waitFor();

        System.exit(0);
    }

}

Rungeek.com - 2009