at.rc.tacos.client.Application.java Source code

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Here is the source code for at.rc.tacos.client.Application.java

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/*******************************************************************************
 * Copyright (c) 2008, 2009 Internettechnik, FH JOANNEUM
 * http://www.fh-joanneum.at/itm
 * 
 *    Licenced under the GNU GENERAL PUBLIC LICENSE Version 2;
 *    You may obtain a copy of the License at
 *    http://www.gnu.org/licenses/gpl-2.0.txt
 * 
 * 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.
 *******************************************************************************/
package at.rc.tacos.client;

import org.eclipse.equinox.app.IApplication;
import org.eclipse.equinox.app.IApplicationContext;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;

import at.rc.tacos.core.net.NetSource;
import at.rc.tacos.core.net.NetWrapper;
import at.rc.tacos.core.net.socket.IServerInfo;
import at.rc.tacos.core.net.socket.ServerInfo;

/**
 * This class controls all aspects of the application's execution
 */
public class Application implements IApplication {

    /**
     * Start the application and create the main workbench
     * 
     * @param context
     *            the context used to init the application
     * @return the exit code of the application
     */
    public Object start(IApplicationContext context) {
        // the net source
        NetSource source = NetSource.getInstance();
        ServerInfo primaryServer = source.getServerInfoById(IServerInfo.PRIMARY_SERVER);
        ServerInfo failoverServer = source.getServerInfoById(IServerInfo.FAILOVER_SERVER);

        // FIXME This is just a test for svn merge

        // startup the workbench
        Display display = PlatformUI.createDisplay();
        // connect to the server
        if (source.openConnection(primaryServer) == null) {
            display.beep();
            // show an error message
            if (!MessageDialog.openQuestion(display.getActiveShell(), "Verbindungsfehler",
                    "Verbindung zum primren Server nicht mglich.\n"
                            + "Soll eine Verbindung zum Backup Server hergestellt werden?")) {
                return IApplication.EXIT_OK;
            } else {
                // get the network status
                if (source.openConnection(failoverServer) == null) {
                    display.beep();
                    // show an error message
                    MessageDialog.openError(display.getActiveShell(), "Verbindungsfehler",
                            "Verbindung zum primren und zum Backup Server nicht mglich.\n"
                                    + "Applikation wird beendet");
                    return IApplication.EXIT_OK;
                }
            }
        }
        // startup the network
        NetWrapper.getDefault().init();
        Activator.getDefault().init();
        // try to load workbench
        try {
            ApplicationWorkbenchAdvisor adv = new ApplicationWorkbenchAdvisor();
            // create the workbench
            int returnCode = PlatformUI.createAndRunWorkbench(display, adv);
            if (returnCode == PlatformUI.RETURN_RESTART)
                return IApplication.EXIT_RESTART;
            return IApplication.EXIT_OK;
        } finally {
            display.dispose();
        }
    }

    /**
     * Stops the application and close the workbench
     */
    public void stop() {
        final IWorkbench workbench = PlatformUI.getWorkbench();
        if (workbench == null)
            return;
        final Display display = workbench.getDisplay();
        display.syncExec(new Runnable() {

            public void run() {
                if (!display.isDisposed())
                    workbench.close();
            }
        });
    }
}