launcher.java

基于Jabber协议的即时消息服务器

        frame.setResizable(true);

        GraphicUtils.centerWindowOnScreen(frame);

        frame.setVisible(true);

        // Setup command area
        final ImageIcon icon = new ImageIcon(getClass().getClassLoader().getResource("splash2.gif"));
        pane = new DroppableTextPane() {
            public void paintComponent(Graphics g) {
                final Dimension size = pane.getSize();

                int x = (size.width - icon.getIconWidth()) / 2;
                int y = (size.height - icon.getIconHeight()) / 2;
                //  Approach 1: Dispaly image at at full size
                g.setColor(Color.white);
                g.fillRect(0, 0, size.width, size.height);
                g.drawImage(icon.getImage(), x, y, null);


                setOpaque(false);
                super.paintComponent(g);
            }

            public void fileDropped(File file) {
                String fileName = file.getName();
                if (fileName.endsWith(".jar") || fileName.endsWith(".war")) {
                    installPlugin(file);
                }
            }
        };

        pane.setEditable(false);

        final JPanel bevelPanel = new JPanel();
        bevelPanel.setBackground(Color.white);
        bevelPanel.setLayout(new BorderLayout());
        bevelPanel.setBorder(BorderFactory.createLoweredBevelBorder());
        bevelPanel.add(new JScrollPane(pane), BorderLayout.CENTER);
        cardPanel.add("running", bevelPanel);

        // Start the app.
        startButton.doClick();
    }

    /**
     * Creates a new GUI launcher instance.
     */
    public static void main(String[] args) {
        new Launcher();
    }

    private synchronized void startApplication() {
        if (wildfired == null) {
            try {
                File windowsExe = new File(binDir, "wildfired.exe");
                File unixExe = new File(binDir, "wildfired");
                if (windowsExe.exists()) {
                    wildfired = Runtime.getRuntime().exec(new String[]{windowsExe.toString()});
                }
                else if (unixExe.exists()) {
                    wildfired = Runtime.getRuntime().exec(new String[]{unixExe.toString()});
                }
                else {
                    throw new FileNotFoundException();
                }
            }
            catch (Exception e) {
                // Try one more time using the jar and hope java is on the path
                try {
                    File libDir = new File(binDir.getParentFile(), "lib").getAbsoluteFile();
                    wildfired = Runtime.getRuntime().exec(new String[]{
                        "java", "-jar", new File(libDir, "startup.jar").toString()
                    });
                }
                catch (Exception ex) {
                    ex.printStackTrace();
                    JOptionPane.showMessageDialog(null,
                            "Launcher could not start,\n" + appName,
                            "File not found", JOptionPane.ERROR_MESSAGE);
                }
            }

            final SimpleAttributeSet styles = new SimpleAttributeSet();
            SwingWorker inputWorker = new SwingWorker() {
                public Object construct() {
                    if (wildfired != null) {
                        try {
                            // Get the input stream and read from it
                            InputStream in = wildfired.getInputStream();
                            int c;
                            while ((c = in.read()) != -1) {
                                try {
                                    StyleConstants.setFontFamily(styles, "courier new");
                                    pane.getDocument().insertString(pane.getDocument().getLength(),
                                            "" + (char)c, styles);
                                }
                                catch (BadLocationException e) {
                                    // Ignore.
                                }
                            }
                            in.close();
                        }
                        catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    return "ok";
                }
            };
            inputWorker.start();


            SwingWorker errorWorker = new SwingWorker() {
                public Object construct() {
                    if (wildfired != null) {
                        try {
                            // Get the input stream and read from it
                            InputStream in = wildfired.getErrorStream();
                            int c;
                            while ((c = in.read()) != -1) {
                                try {
                                    StyleConstants.setForeground(styles, Color.red);
                                    pane.getDocument().insertString(pane.getDocument().getLength(), "" + (char)c, styles);
                                }
                                catch (BadLocationException e) {
                                    // Ignore.
                                }
                            }
                            in.close();
                        }
                        catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    return "ok";
                }
            };
            errorWorker.start();

            if (freshStart) {
                try {
                    Thread.sleep(1000);
                    cardLayout.show(cardPanel, "running");
                }
                catch (Exception ex) {
                    // Ignore.
                }
                freshStart = false;
            }
            else {
                 // Clear Text
                pane.setText("");
                cardLayout.show(cardPanel, "running");
            }

        }
    }

    private synchronized void stopApplication() {
        if (wildfired != null) {
            try {
                wildfired.destroy();
                wildfired.waitFor();
                cardLayout.show(cardPanel, "main");
            }
            catch (Exception e) {
                e.printStackTrace();
            }
        }

        wildfired = null;
    }

    private synchronized void launchBrowser() {
        try {
            // Note, we use standard DOM to read in the XML. This is necessary so that
            // Launcher has fewer dependencies.
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            Document document = factory.newDocumentBuilder().parse(configFile);
            Element rootElement = document.getDocumentElement();
            Element adminElement = (Element)rootElement.getElementsByTagName("adminConsole").item(0);
            String port = "-1";
            String securePort = "-1";
            Element portElement = (Element)adminElement.getElementsByTagName("port").item(0);
            if (portElement != null) {
                port = portElement.getTextContent();
            }
            Element securePortElement = (Element)adminElement.getElementsByTagName("securePort").item(0);
            if (securePortElement != null) {
                securePort = securePortElement.getTextContent();
            }
            if ("-1".equals(port)) {
                BrowserLauncher.openURL("https://127.0.0.1:" + securePort + "/index.html");
            }
            else {
                BrowserLauncher.openURL("http://127.0.0.1:" + port + "/index.html");
            }
        }
        catch (Exception e) {
            JOptionPane.showMessageDialog(new JFrame(), configFile + " " + e.getMessage());
        }
    }

    private void installPlugin(final File plugin) {
        final JDialog dialog = new JDialog(frame, "Installing Plugin", true);
        dialog.getContentPane().setLayout(new BorderLayout());
        JProgressBar bar = new JProgressBar();
        bar.setIndeterminate(true);
        bar.setString("Installing Plugin.  Please wait...");
        bar.setStringPainted(true);
        dialog.getContentPane().add(bar, BorderLayout.CENTER);
        dialog.pack();
        dialog.setSize(225, 55);

        final SwingWorker installerThread = new SwingWorker() {
            public Object construct() {
                File pluginsDir = new File(binDir.getParentFile(), "plugins");
                String tempName = plugin.getName() + ".part";
                File tempPluginsFile = new File(pluginsDir, tempName);

                File realPluginsFile = new File(pluginsDir, plugin.getName());

                // Copy Plugin into Dir.
                try {
                    // Just for fun. Show no matter what for two seconds.
                    Thread.sleep(2000);

                    copy(plugin.toURL(), tempPluginsFile);

                    // If successfull, rename to real plugin name.
                    tempPluginsFile.renameTo(realPluginsFile);
                }
                catch (Exception e) {
                    e.printStackTrace();
                }
                return realPluginsFile;
            }

            public void finished() {
                dialog.setVisible(false);
            }
        };

        // Start installation
        installerThread.start();

        dialog.setLocationRelativeTo(frame);
        dialog.setVisible(true);
    }

    private static void copy(URL src, File dst) throws IOException {
        InputStream in = null;
        OutputStream out = null;
        try {
            in = src.openStream();
            out = new FileOutputStream(dst);
            dst.mkdirs();
            copy(in, out);
        }
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            }
            catch (IOException e) {
                // Ignore.
            }
            try {
                if (out != null) {
                    out.close();
                }
            }
            catch (IOException e) {
                // Ignore.
            }
        }
    }

    /**
     * Common code for copy routines.  By convention, the streams are
     * closed in the same method in which they were opened.  Thus,
     * this method does not close the streams when the copying is done.
     */
    private static void copy(InputStream in, OutputStream out) throws IOException {
        byte[] buffer = new byte[4096];
        while (true) {
            int bytesRead = in.read(buffer);
            if (bytesRead < 0) {
                break;
            }
            out.write(buffer, 0, bytesRead);
        }
    }
}