How to generate wsdl programmatically using cxf?

Hi, we are migrating from xfire to cxf. In xfire, we have the following code for generating wsdl.

 XFire xfire = (XFire)BeanFactory.getBeanInstance("xfire");
 Service origRegisteredService = xfire.getServiceRegistry().getService(serviceName);
 origRegisteredService.getWSDLWriter().write(os);

We need to migrate the above code from xfire to CXF.

1) Is JavaToWSDLProcessor.generate() the right API to use for generating wsdl in CXF?
2) If so, given a serviceName, what are the APIs we need to use to get the ServiceInfo, so we can pass it to JavaToWSDLProcessor.generate() method?

Thanks very much in advice,

Li