1. Wien, 18-19 January 2010 1 Infrastructure for Spatial Information in the European Community The INSPIRE Community Geoportal EC INSPIRE GEOPORTAL TEAM European Commission Joint Research Centre Institute for Environment and Sustainability Spatial Data Infrastructures Unit

2. Wien, 18-19 January 2010 2 INSPIRE Geoportal – home page http://www.inspire-geoportal.eu

3. Wien, 18-19 January 2010 3 Web Site: http://www.inspire-geoportal.eu For more information contact inspire-geoportal@jrc.ec.europa.eu

4. Wien, 18-19 January 2010 4 View Service Client - Overview  It is a web application  Lists and displays layers offered by View Services  Features a search engine for layers  Multi-language search is enabled for INSPIRE themes.

5. Wien, 18-19 January 2010 5 View Service Client – Presentation tier  The presentation tier runs inside the user’s web browser  Map layers are displayed using OpenLayers  Map layers images are obtained through a direct connection between the browser and the View Service

6. Wien, 18-19 January 2010 6 View Service Client – INSPIRE metadata  The presentation tier receives only the metadata relevant to INSPIRE from the application tier  The application tier takes care of any conversion

7. Wien, 18-19 January 2010 7 View Service Client – Service Metadata  View Service metadata is collected by the Application tier  OGC WMS 1.3 documents are expected but the system also works with versions 1.1.0 and 1.1.1  Metadata documents are parsed by the Application tier to extract information relevant to INSPIRE which is sent to the Presentation tier.

8. Wien, 18-19 January 2010 8 View Service Client – Service Metadata  Metadata documents are cached so that View Services are not requested repeatedly the same document.  Metadata documents are parsed and persisted in a format that optimizes free text search.

9. Wien, 18-19 January 2010 9  The View Service Client does not make any assumption on the language used in textual elements of the metadata as this information is not available. View Service Client – Service Metadata language

10. Wien, 18-19 January 2010 10 View Service Client – Software Stack Presentation tierApplication TierService Tier  Ext JS JavaScript library  OpenLayers  MapFish Web layer  J2EE Servlets  GeoTools library  GEMET Java library Data access layer  Java Persistence API  EclipseLink as persistence engine implementation Thesaurus: GEMET RPC API View Service: -WMS 1.1.1 and ISO 19128 (WMS 1.3) RDBMS  is Oracle 10g Release 2.