Main.java

/*
 * Copyright (C) 2005-2012 NAUMEN. All rights reserved.
 *
 * This file may be distributed and/or modified under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation and appearing in the file LICENSE.GPL included in the
 * packaging of this file.
 *
 */
package ru.naumen.servacc.ui;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

import ru.naumen.servacc.Backend;
import ru.naumen.servacc.HTTPProxy;
import ru.naumen.servacc.IAuthenticationParametersGetter;
import ru.naumen.servacc.MindtermBackend;
import ru.naumen.servacc.SSHKeyLoader;
import ru.naumen.servacc.activechannel.ActiveChannelsRegistry;
import ru.naumen.servacc.platform.OS;
import ru.naumen.servacc.settings.ApplicationProperties;
import ru.naumen.servacc.settings.ShellConfiguration;
import ru.naumen.servacc.settings.impl.DefaultConfiguration;

public class Main
{
    private static final String WINDOW_HEADER = "Server Access";
    private static final String WINDOW_ICON = "/prog.ico";

    public static void main(String[] args) throws Exception
    {
        new Main().run();
    }

    private void run()
    {
        // Create active channels registry
        ActiveChannelsRegistry acRegistry = new ActiveChannelsRegistry();

        // Create GUI
        OS system = new OS();
        DefaultConfiguration configuration = system.getConfiguration();
        system.initTempDirectories();

        Display display = new Display();
        Shell shell = createShell(display, configuration.getWindowProperties());
        ExecutorService executor = Executors.newCachedThreadPool(new DaemonizerThreadFactory());
        IAuthenticationParametersGetter authParamsGetter = new AuthenticationDialogParametersGetter(shell);
        Backend backend = new MindtermBackend(system, executor, acRegistry, new SSHKeyLoader(authParamsGetter, system.getKeyStoreDirectory(), system.getTempKeyStoreDirectory()));
        HTTPProxy httpProxy = new HTTPProxy(backend, executor, acRegistry);
        UIController controller = new UIController(shell, system.getGUIOptions(), backend, executor, httpProxy,
            configuration.filterProperties("source[0-9]*"), acRegistry);
        controller.start();
        // Start proxy server
        httpProxy.start();

        while (!shell.isDisposed())
        {
            if (!display.readAndDispatch())
            {
                display.sleep();
            }
        }
        acRegistry.finish();
        httpProxy.finish();
        display.dispose();
        backend.cleanup();
        system.removeTempDirectories();
    }

    private Shell createShell(Display display, ApplicationProperties windowProperties)
    {
        Shell shell = new Shell(display);
        shell.setText(WINDOW_HEADER);
        shell.setImage(ImageCache.getImage(WINDOW_ICON, 1));
        shell.setLayout(new GridLayout());
        final ShellConfiguration config = new ShellConfiguration(shell, windowProperties);
        // dispose handler
        shell.addListener(SWT.Dispose, new Listener()
        {
            @Override
            public void handleEvent(Event event)
            {
                config.storePosition();
            }
        });
        config.restorePosition();
        return shell;
    }

    private static class DaemonizerThreadFactory implements ThreadFactory
    {
        @Override
        public Thread newThread(Runnable runnable)
        {
            final Thread thread = new Thread(runnable);
            thread.setDaemon(true);
            return thread;
        }
    }
}