RDF-based event distribution / subscribing method supporting isomerous events

Abstract

This invention discloses an issuing / subscribing method suitable for isomerized event based on RDF event, which comprises the following steps: 1) judging whether the event issued is RDF type, if not, to step 2), if is, to step 3); 2) shifting the non-RDF event into RDF type, then issuing to net platform; 3) if event issued matching the condition of subscriber, sending corresponding event to he. Map event is shifted by following steps: ordering the MAP event data in turn of property name, whether the property must appear, whether the property can appear multi-times, logic sequence among the properties, explaining type of the property value, and processing the data to create RDF graph nodes and arcs, forming the RDF event; XML event is shifted by these: adopting XML schema to express XML event structure, making out its schema, using XSLT to shift XML event into RDF event.

Description

technical field

[0001] The invention relates to an RDF-based event publishing / subscribing method supporting heterogeneous events. Background technique

[0002] Publish / subscribe (publish / subscribe, referred to as pub / sub) system is a distributed computing platform (or middleware system), which is used to provide a loosely coupled communication method between participants in a distributed system . In a large-scale, highly dynamic distributed system, its various participants may continuously join and exit, and it is often difficult for each participant to know which participants are currently online, which makes the information interaction between them difficult. Very difficult. The Pub / sub system can solve this problem well because of its loosely coupled characteristics.

[0003] like figure 1 As shown, in a pub / sub system, information exchanged between information producers and consumers is called an "event". The information producer sends the "event" to the "event agen...

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