org.eclipse.stem/modelgen/org.eclipse.stem.model.ui/src/org/eclipse/stem/model/ui/handlers/LoadBundleHandler.java

package org.eclipse.stem.model.ui.handlers;
import java.util.Iterator;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.stem.model.ui.MetamodelEditorPlugin;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.handlers.HandlerUtil;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;


/**
 * 
 * @author jhkauf
 *
 */
public class LoadBundleHandler extends AbstractHandler {

	/**
	 * 
	 */
	@Override
	public Object execute(ExecutionEvent event) throws ExecutionException {
		 ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage().getSelection();
		 if (selection instanceof IStructuredSelection) {
				for (Iterator<?> it = ((IStructuredSelection) selection).iterator(); it.hasNext();) {
					Object element = it.next();
					IProject project = null;
					if (element instanceof IProject) {
						project = (IProject) element;
					} else if (element instanceof IAdaptable) {
						project = (IProject) ((IAdaptable) element).getAdapter(IProject.class);
					}
					if (project != null) {
						installBundle(project);
					}
				}
			}
		
		return null;
	}

	/**
	 * 
	 * @param project
	 */
	protected void installBundle(IProject project)
	{
		System.out.println("Installing bundle from project "+ project.getName());
		
		BundleContext ctx = MetamodelEditorPlugin.getPlugin().getBundle().getBundleContext();
		
		Bundle b = Platform.getBundle(project.getName());
		if (b == null) {
			Bundle newBundle = null;
			try {
				newBundle = ctx.installBundle(project.getLocationURI().toString());
				newBundle.start();
			} catch (BundleException e) {
				
				if (newBundle != null) {
					try {
						System.err.println("Install and/or start failed, trying to uninstall.");
						newBundle.uninstall();
					} catch (BundleException e2) {
						
					}
				}
				IStatus status = new Status(Status.ERROR, project.getName(), "Error installing into OSGi container", e);
				
				ErrorDialog.openError(Display.getDefault().getActiveShell(), "Error", 
						"Error installing the project "+project.getName()+" into the OSGi constainer", status);
				
				// TODO Auto-generated catch block
				e.printStackTrace();
			}				
		}
	}

}