public class UploadHandler extends AbstractHandler {

	public static final String LOCAL_DEVICE_SHAPE_XMI_FILE = "localDeviceShapeXmiFile";

	@Override
	public Object execute(ExecutionEvent event) throws ExecutionException {
		FileDialog fileDialog = new FileDialog(HandlerUtil.getActiveShell(event), SWT.OPEN);
		fileDialog.setFilterExtensions(new String[] { ".xmi" });
try {
		String file = fileDialog.open();
		MessageDialog.openInformation(HandlerUtil.getActiveWorkbenchWindow(event).getShell(), "Info",
				"Uploaded and stored here " + file);
}catch (Throwable e) {
	e.printStackTrace();
}
}