com.nextep.designer.Application.java Source code

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Here is the source code for com.nextep.designer.Application.java

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/*******************************************************************************
 * Copyright (c) 2011 neXtep Software and contributors.
 * All rights reserved.
 *
 * This file is part of neXtep designer.
 *
 * NeXtep designer 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 3 of the License, or any later version.
 *
 * NeXtep designer 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contributors:
 *     neXtep Softwares - initial API and implementation
 *******************************************************************************/
package com.nextep.designer;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
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;

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

    private final static Log log = LogFactory.getLog(Application.class);

    public Object start(IApplicationContext context) {
        // Adding debug logs here since when we got a configuration problem we fail in these early
        // steps.
        log.debug("Creating display..."); //$NON-NLS-1$
        Display display = PlatformUI.createDisplay();
        log.debug("Display OK, checking java version..."); //$NON-NLS-1$
        String javaVersion = System.getProperty("java.version"); //$NON-NLS-1$
        Float d = Float.parseFloat(javaVersion.substring(0, 3));
        if (d.floatValue() < 1.6f) {
            MessageDialog.openError(null, DesignerMessages.getString("application.javaTooOldError.title"), //$NON-NLS-1$
                    DesignerMessages.getString("application.javaTooOldError.message") + javaVersion + "."); //$NON-NLS-1$ //$NON-NLS-2$
            return IApplication.EXIT_OK;
        }
        try {
            log.debug("Creating workbench..."); //$NON-NLS-1$
            int returnCode = PlatformUI.createAndRunWorkbench(display, new ApplicationWorkbenchAdvisor());
            if (returnCode == PlatformUI.RETURN_RESTART) {
                return IApplication.EXIT_RESTART;
            }
            return IApplication.EXIT_OK;
        } finally {
            display.dispose();
        }
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.equinox.app.IApplication#stop()
     */
    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();
            }
        });
    }
}