com.nubits.nubot.launch.toolkit.LaunchUI.java Source code

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Here is the source code for com.nubits.nubot.launch.toolkit.LaunchUI.java

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/*
 * Copyright (C) 2015 Nu Development Team
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package com.nubits.nubot.launch.toolkit;

import com.nubits.nubot.global.Settings;
import com.nubits.nubot.utils.FilesystemUtils;
import org.apache.commons.lang3.SystemUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.swing.*;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileNameExtensionFilter;
import java.io.File;
import java.io.IOException;

/**
 * This should be packed into a Binary jar that launched nubot with the UI.
 * Associated gradle task LaunchUIjar
 * Assuming this binary is in the same folder of NuBot.jar, it will launch the command
 * java - jar NuBot -cfg=<pathTo/options.json> -GUI
 */

public class LaunchUI {

    private static final Logger LOG = LoggerFactory.getLogger(LaunchUI.class.getName());

    private final String JAR_FILE = "NuBot.jar"; //Name of jar file
    private final String ARGS = "-GUI"; //Arguments to pass to CLI to run
    private final String CFG_PREFIX = "-cfg=";
    private final String EXECUTE_JAR = "java -jar"; //Command to launch the jar

    private final String ICON_PATH = Settings.IMAGE_FOLDER + "/nubot-logo.png";
    private String command = "";
    private String local_path;

    public static void main(String[] args) {
        if (args.length == 0) {
            LaunchUI launch = new LaunchUI();
            launch.start();
        }
    }

    private void start() {

        local_path = FilesystemUtils.getBotAbsolutePath();

        String configPath = askUser(); //Ask user for path; returns "" if nothing selected

        command = EXECUTE_JAR + " " + JAR_FILE + " ";
        if (!configPath.equals("")) {//User indicated a file
            command += CFG_PREFIX + configPath + " ";
        }

        command += ARGS;

        Runtime rt = Runtime.getRuntime();
        try {
            if (SystemUtils.IS_OS_WINDOWS) {
                //for windows the launch command requires a different syntax
                command = "cmd /c " + command;
            }

            System.out.println("Launching UI from CLI : $ " + command);
            Process pr = rt.exec(command); //Run

        } catch (IOException e) {
            LOG.error(e.toString());
        }

        System.exit(0);
    }

    private String askUser() {
        //Create Options for option dialog
        String path = "";

        // Set cross-platform Java L&F (also called "Metal")
        try {
            UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());

            final ImageIcon icon = new ImageIcon(local_path + "/" + ICON_PATH);

            //Ask the user to ask for scratch
            Object[] options = { "Import existing JSON option file", "Configure the bot from scratch" };

            int n = JOptionPane.showOptionDialog(new JFrame(), "Chose one of the following options:",
                    "NuBot UI Launcher", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, icon, //do not use a custom Icon
                    options, //the titles of buttons
                    options[0]); //default button title

            if (n == JOptionPane.YES_OPTION) {

                //Prompt user to chose a file.
                JFileChooser fileChooser = createFileChoser();

                int result = fileChooser.showOpenDialog(new JFrame());
                if (result == JFileChooser.APPROVE_OPTION) {
                    File selectedFile = fileChooser.getSelectedFile();
                    path = selectedFile.getAbsolutePath();
                    LOG.info("Option file selected : " + path);
                } else {
                    LOG.info("Closing Launch UI utility.");
                    System.exit(0);
                }
            }
        } catch (ClassNotFoundException | UnsupportedLookAndFeelException | IllegalAccessException
                | InstantiationException e) {
            LOG.error(e.toString());
        }

        return path;
    }

    private JFileChooser createFileChoser() {
        JFileChooser fileChooser = new JFileChooser();

        // Set the text of the button
        fileChooser.setApproveButtonText("Import");
        // Set the tool tip
        fileChooser.setApproveButtonToolTipText("Import configuration file");

        //Filter .json files
        FileFilter filter = new FileNameExtensionFilter(".json files", "json");
        fileChooser.setFileFilter(filter);

        fileChooser.setCurrentDirectory(new File(local_path));
        return fileChooser;
    }
}