1. CGI – GeoSciML Use Case 2 & 3 Delivering GetFeatureInfo and GetFeature into HTML, GML and GeoSciML WFS & Filters

2. Scope Map server SLDs geoserver Database Vocabularies WFSX WMS WFS
Gsml Resource
Service
GetMap
WFSX
HTML
GetFeatureInfo
GeoSciML
GML

3. WFSX : Schema mapping => HTML
geoserver
WMS
GetFeatureInfo
WFSX
HTML

4. WFSX : Schema mapping => GeoSciML
geoserver
WMS
GetFeatureInfo
WFSX
GeoSciML

5. WFS-X Architecture : a Web Feature Service with Transformation
Client
WFS-X
Servlet
DB with mapping
descriptions
geoserver
WMS
Schema mapping
Schema translation
Content translation
WFS
geoserver
WMS
Mapping
descriptions
WFS
A WFS-X connected to various WFS with 3 components:
one for schema mapping with many operators,
one for schema translation (of elements name),
one for content translation (text values)

6. WFS-X: Exemple of Schema Mapping
<Server> defines which WMS or WFS to call in order to obtain INPUT which will be parsed by WFSX
<Name> is part of the url to call WFSX.

7. WFS-X: Exemple of Schema Mapping, to map HTML
input
Mapping
Output

8. WFSX and Vocabularies Operator GetUrnByTerm: parameters :
Pattern to find value to translate
Vocabulary to use
Url service to call
Operating of GetUrnByTerm operator :
A Java program uses a Get http Request on the service URL,
retrieves and parses XML response,
then translates into GeoSciML

9. WFSX and Filters When WFSX detects a Filter parameter:
using Mapping, it translates PropertyName into GML pattern,
if a GetUrnByTerm operator is found, it translates urn given into Filter,
then translated Filter is sent to WFS getFeature.
<ogc:Filter xmlns:ogc=" xmlns:gml="
<ogc:PropertyIsEqualTo>
<ogc:PropertyName>
gsml:GeologicUnit/gsml:classifier/gsml:ControlledConcept/gsml:identifier
</ogc:PropertyName>
<ogc:Literal>
urn:cgi:classifier:CGI:SimpleLithology:1986:amphibolite
</ogc:Literal>
</ogc:PropertyIsEqualTo>
</ogc:Filter>
GML pattern:
brgm:lithologie
amphibolite