Managing a subscription hierarchy in presence systems

摘要

A method, an apparatus and an article of manufacture for managing a subscription hierarchy in a presence system. The method includes receiving a presence information request within a presence server, wherein the request is one of a subscription request and an un-subscribe request, determining if the request corresponds to an existing subscriber in the presence server, and if so, sending a redirect message to the existing subscriber, and if not, processing the request within the presence server, and enhancing functionality of subscribers to accept and handle subscription and un-subscribe requests.

主权项

1. A method for managing a subscription hierarchy in a presence system, the method comprising:
receiving a presence information request from a first subscriber within a presence server, wherein the request is one of a subscription request and an un-subscribe request; determining if the request corresponds to an existing second subscriber in the presence server;
and if so, redirecting the request to the existing second subscriber for processing by the existing second subscriber, wherein said processing comprises:
the existing second subscriber updating a watcher table in connection with the request; andthe existing second subscriber emitting a notification pertaining to the request;and if not, processing the request within the presence server; and enhancing functionality of subscribers to accept and process subscription requests and un-subscribe requests to distribute a processing load among the presence server and subscribers within the presence server; wherein at least one of the steps is carried out by a computer device.