Optimized cooperation between resource list servers and presence servers

摘要

A method, system and computer program product for optimized cooperation between resource list servers and presence servers. The method including receiving a subscription request from a watcher, where the subscription request identifies a resource list and is a request to receive presence information regarding each of a plurality of presentities listed on the resource list, and generating a subscription request to a presence server for presence information regarding any presentity listed on the resource list only if no other currently-active subscription request is known by the resource list server to exist for presence information regarding the presentity.

主权项

1. A system comprising:
a first processing system including at least one processor device configured to:
receive a subscription request that identifies a list indicating a plurality of network entities and includes a request for information for one or more network entities within said list;determine active subscription requests for individual network entities and compare individual network entities of said list to said determined active subscription requests;receive information pertaining to individual network entities of said list from a second processing system in response to said comparison indicating said active subscription requests for those individual network entities; andgenerate one or more subscription requests each for a corresponding one of said network entities of said list and requesting information pertaining to that network entity from said second processing system, wherein each subscription request is generated for said corresponding network entity in response to no other currently-active subscription request being determined by said first processing system to exist for said information pertaining to that network entity.