How to create a pubsub node on server side

I know that i can use smack api to create a pubsub node on client side. however, i want to create a pubsub node on server side, but PubSubModule class has no method to do this. Does it mean i cannot do this on server side? or i miss something?

I want to implement that only administrator can create node and manage subscriber, how can i do that by coding?