Use specific ServiceProvider in Laravel 4

Use specific ServiceProvider in Laravel 4

Laravel 4 ships with the php artisan routes command. This shows a list of
registered routes on the command line. Instead of showing the registered
routes on the command line, I would like to get its values within a
controller.
The following method does exactly what I want:
Illuminate\Foundation\Console\RoutesCommand()
Unfortunately this is a protected method, so it doesn't work when I try
something like this:
$rc = new Illuminate\Foundation\Console\RoutesCommand(new
Illuminate\Routing\Router);
print_r($rc->getRoutes());
How can I access this method to display the registered routes in my
Laravel 4 app?
Or even better; how can I access methods of any autoloaded service provider?