Parse output from 'zypper ps -s' and display using FlatLaf GUI framework.

ZypperPS.java

//usr/bin/env jbang "$0" "$@" ; exit $?
//DEPS info.picocli:picocli:4.6.1
//DEPS com.formdev:flatlaf:0.45

import com.formdev.flatlaf.FlatDarkLaf;
import picocli.CommandLine;
import picocli.CommandLine.Command;
import picocli.CommandLine.Option;
import picocli.CommandLine.Parameters;

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

@Command(name = "ZypperPS", mixinStandardHelpOptions = true, version = "ZypperPS 1.0", description = "Parse output from 'zypper ps -s' and display using FlatLaf GUI framework.")
class ZypperPS implements Runnable {

    public void run() {
        // Run 'sudo zypper ps -s' command
        List<String> command = new ArrayList<>();
        command.add("sudo");
        command.add("zypper");
        command.add("ps");
        command.add("-s");

        ProcessBuilder pb = new ProcessBuilder(command);
        pb.redirectErrorStream(true);
        try {
            Process process = pb.start();
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

            // Parse the output
            List<String[]> data = new ArrayList<>();
            String line;
            boolean skipHeaders = true;
            while ((line = reader.readLine()) != null) {
                if (line.startsWith("The following running processes use deleted files:")) {
                    continue; // skip this line and the following ones
                }
                if (line.startsWith("------+-------+------+------------+------------------+-----------------")) {
                    continue; // skip this line and the following ones
                }
                if (line.startsWith("You")) {
                    continue; // skip this line and the following ones
                }
                if (line.startsWith("PID")) { // skip headers
                    skipHeaders = false;
                    continue;
                }
                if (skipHeaders) {
                    continue;
                }
                String[] fields = line.trim().split("\\s*\\|\\s*");
                data.add(fields);
            }

            // Create table model
            String[] columnNames = { "PID", "PPID", "UID", "User", "Command", "Service" };
            DefaultTableModel model = new DefaultTableModel(columnNames, 0);
            for (String[] row : data) {
                model.addRow(row);
            }

            // Display in GUI
            FlatDarkLaf.install();
            JFrame.setDefaultLookAndFeelDecorated(true);
            JDialog.setDefaultLookAndFeelDecorated(true);
            JFrame frame = new JFrame("Zypper PS Output");
            JTable table = new JTable(model);
            JScrollPane scrollPane = new JScrollPane(table);

            // Add text outside of table
            JPanel panel = new JPanel(new BorderLayout());
            panel.add(scrollPane, BorderLayout.CENTER);
            JTextArea textArea = new JTextArea(
                    "You may wish to restart these processes.\n" +
                            "See 'man zypper' for information about the meaning of values in the above table.\n\n" +
                            "Since the last system boot core libraries or services have been updated.\n" +
                            "Reboot is suggested to ensure that your system benefits from these updates.");
            textArea.setEditable(false);
            panel.add(textArea, BorderLayout.SOUTH);

            frame.getContentPane().add(panel);
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.pack();
            frame.setVisible(true);

        } catch (IOException e) {
            System.err.println("Error executing command: " + e.getMessage());
            System.exit(1);
        }
    }

    public static void main(String[] args) {
        CommandLine.run(new ZypperPS(), args);
    }
}