* {@inheritDoc}
*/
public void doExecute(boolean install, InputStream in, PrintStream out, PrintStream err, boolean consoleView,
boolean swingView) throws Exception {
ViewFactory viewFactory =
consoleView ? new ConsoleViewFactory()
: swingView ? new SwingViewFactory() : null;
if (viewFactory == null) {
err.println("No UI selected");
exit(1);
}