Slides for the Orion Context Broker webminar on January 22nd, 2014

1. Orion Context Broker webminar
Fermín Galán Márquez (fermin@tid.es) Telefónica I+D
January 22nd, 2014
Open APIs for Open Minds

2. Context management
 Context Management in FI-WARE is about management of Context data (aka Context Information)
 Context Information is always relevant to “entities”, although entities can be anything (applications,
users, things, …)
 Orion Context Broker intermediates between context producers and context consumers
Orion Context
Broker
1
Applications

3. The NGSI information model
(We are not fully supporting
metadata right now)
Context Element
• EntityId
• EntityType
“has”
1
n
Meta-data
Context Element attributes
• Name
• Type
• Value
• Name
• Type
• Value
“has”
1
n
Electrical Regulator
severity
Issues
presence
Technicians
Node Lamps
Vans
2
batteryCharge
location
electricPotential
TimeInstant
illuminance

4. Orion Context Broker in a nutshell
Orion Context Broker
Context
Consumers
subscriptions
Context
Producers
query
1026
update
notify
update
1026
notify
update
3
DB

5. NGSI API
 REST API (XML & JSON rendering)
 NGS10
•
•
•
updateContext
queryContext
subscribeContext / updateContextSubacription / unsusbribeContext
 NGS9
•
•
•
registerContext
discoverContextAvailability
subscribeContext Availability/ updateContextAvailabilitySubacription /
unsusbribeContextAvailability
 Additional “convenience” operations to easy some operations
4

6. Resources for developers
Single entry point: the FI-WARE Catalogue
• http://catalogue.fi-ware.eu/
• “Enablers” tab
• “Data/Context management chapter”
• Search for “Publish/Subscribe Context Broker - Orion Context Broker”
Direct URL: http://catalogue.fi-ware.eu/enablers/publishsubscribecontext-broker-orion-context-broker
The core manuals are linked from “Documentation” tab
5

7. Thanks !
 http://fi-ppp.eu
 http://fi-ware.eu
 Follow @Fiware on Twitter !
6