1. M. Santoro, F. Papeschi, E. Boldrini, S. Nativi
GEOSS AIP-8
GEO DAB APIs
M. Santoro, F. Papeschi, E. Boldrini, S. Nativi

2. The GEOSS Common Infrastructure
Science & Society
GEOSS Common Infrastructure
GEOSS Web Portal
GEO DAB
Registry
Data & Information Capacities

3. The GEO DAB
Community/Citizen
Portals

4. Accessing the GEO DAB

5. From Many to Many APIs Well-Known Interfaces Many Community Resources
Many Users Applications/ portals/Clients
APIs
Well-Known Interfaces

6. GEO DAB Interfaces OGC CSW OpenSearch OAI-PMH
Core
ISO
EbRIM
OpenSearch
Geo and Time Extension
Semantic Extension
OAI-PMH
OGC Web Processing Service (Access + Transformation)
OGC WxS

7. The JavaScript Libraries

8. Why JavaScript?

9. The GI DAB APIs http://api.eurogeoss-broker.eu Objectives
To support and facilitate the creation of clients exploiting the DAB functionalities
An environment to learn by examples
Design criteria
To expose the DAB functionalities (semantic discovery and dataset access) hiding its complexity
Easy programming of most common operations
Few concepts (classes)
Default behavior and options
Full interfaces and options available if needed

10. GI API Conceptual Model
DAB
Paginator
(semantic) discovery
ResultSet
Page
explore nodes
expand
GINode
preview / access

11. GI Javascript library Objectives Specific characteristics:
To support Web development
Community portals, application and apps
Specific characteristics:
Asynchronous model
To handle long running tasks (e.g. DAB distributed queries)
Inherent in Javascript language model (event-based)
Dedicated operations to facilitate mash-up
E.g. olWMS operation automatically creates a OpenLayers layer
jQuery integration/dependence
Download and documentation (including examples) at

12. API Homepage

13. API Examples

14. Examples CEOS Water Portal Chile Portal China GEO BCube Ocean Portal
Prod-Trees Cross-Ontology Browser
Next Data Portal

15. Contacts Mailing List: gi-api@lists.essi-lab.eu
Project Leader:
Developers:

16. Thank you