How to subscribe a node

Openfire Plugins
1

Guys!

I m developing a plugin to intercept precense, i need to the specified jid subscribe to the corresponding node, but how i can do it?

e.g

if (incoming && !processed) {//       String statusStr=presence.getStatus();
      if("fztest".equals(statusStr)){
           String jid=presence.getFrom();
           PubSubService ps=XMPPServer.getInstance().getPubSubModule();
           Node node=ps.getNode("fztest");
          //but how to subscribe the node?

any help is welcome

2

node.createSubscription(null, own, jid, true, null);