Just-in-time publishing system and program product for a publish/subscribe messaging system using a subscribe-event model
AssigneeInternational Business Machines Corporation
InventorsEben P. Stewart, Matthew Stoken, Michael Van Der Meulen
Life of this patent
Estimating the term…
Abstract
A system, and program product having at least one subscriber subscribing to topics from one or more data sources. The data sources available and the number of subscriptions for each data source are registered in a table in real time. Upon detecting either subscription activity by the subscribers or availability of data on a data source, a matching routine compares the subscriptions registered for the available data source and enables the sending of messages from the available data source to subscriber/s.
Claims16
In a publish/subscribe system having one or more subscribers subscribing to data from one or more data sources, a just-in-time messaging system comprising:
- a memory;
- a subscription table in which is recorded in real time, subscription requests from subscribers, said subscription requests including specific data sources to be subscribed to, said subscription table storing statistics of the subscriptions topics and the categorization and specifics of the data being requested including a system prefix, subtopic of the data type, specific news forum served, and specific forum to be listened to, a subscriber subscribing to a topic by said publish/subscribe system;
- a data source table in which is recorded in real time, data sources for providing data to subscribers;
- a matching routine connected to said subscription table and said data source table for comparing data source subscription requests in the subscription table with data sources of the data source table as said data sources become available and without further input from said subscribers, said matching routine matching subscription requests by said statistics for the subscriptions topics and categorization and specifics with currently available and active data sources;
- a real-time enabling routine responsive to said matching routine for enabling or disabling message transmissions from a subscribed to data source recorded in said data source table to a subscriber having a subscription for said subscribed to data source in said subscription table through a publish/subscribe engine;
- and
- a search routine searching with said matching routine for matches, immediately after the updating of either of said user subscription table of said data source table.
A computer program product for use in a publish/subscribe system having one or more subscribers subscribing to data from one or more data sources, a computer program product stored in a non-transitory computer readable media that recorded therein computer readable program code for executing a method for just-in-time messaging comprising the steps of:
- recording in real time in a subscription table, subscription requests from subscribers, said subscription requests including specific data sources to be subscribed to, said subscription table storing statistics of the subscriptions topics and the categorization and specifics of the data being requested including a system prefix, subtopic of the data type, specific news forum served, and specific forum to be listened to, a subscriber subscribing to a topic;
- recording in real time in a data source table, data sources for providing data to subscribers;
- comparing with a matching routine connected to said subscription table and said data source table, data source subscription requests in the subscription table with data sources of the data source table as said data sources become available and without further input from said subscribers, said matching routine matching subscription requests by said statistics for the subscriptions topics and categorization and specifics with currently available and active data sources;
- in real time and responsive to said matching routine comparing step, one of enabling or disabling message transmissions from a subscribed to data source recorded in said data source table to a subscriber having a subscription for said subscribed to data source in said subscription table through a publish/subscribe engine;
- and
- searching with said matching routine for matches, immediately after the updating of either of said user subscription table or said data source table.
Dependencies are inferred from the claim text.