[tracker] New location ontology

[Ivan Frade <ifrade src gnome org>]

commit 6e6f52d0a8ba3a75950e0610ff7d57f8ba313f95
Author: Ivan Frade <ivan frade nokia com>
Date:   Wed May 27 14:16:11 2009 +0300

    New location ontology
    
    Very first draft (dont use cardinal points)

 data/ontologies/40-mlo.description |   10 ++++
 data/ontologies/40-mlo.ontology    |  101 ++++++++++++++++++++++++++++++++++++
 utils/services/ttl_html.c          |    6 ++-
 3 files changed, 116 insertions(+), 1 deletions(-)
---
diff --git a/data/ontologies/40-mlo.description b/data/ontologies/40-mlo.description
new file mode 100644
index 0000000..48e89e4
--- /dev/null
+++ b/data/ontologies/40-mlo.description
@@ -0,0 +1,10 @@
+ prefix dsc: <http://www.tracker-project.org/temp/dsc#> .
+
+<virtual-ontology-uri:40-mlo.ontology> a dsc:Ontology ;
+      dsc:title "Maemo Location Ontology (MLO)" ;
+      dsc:author "Ivan Frade &lt;ivan frade nokia com&gt;" ;
+      dsc:editor "Ivan Frade &lt;ivan frade nokia com&gt" ;
+      dsc:contributor "Example of contributor" ;
+      
+      dsc:baseUrl "http://www.tracker-project.org/temp/mlo#"; ;
+      dsc:relativePath "./40-mlo.ontology" .
diff --git a/data/ontologies/40-mlo.ontology b/data/ontologies/40-mlo.ontology
new file mode 100644
index 0000000..78bea37
--- /dev/null
+++ b/data/ontologies/40-mlo.ontology
@@ -0,0 +1,101 @@
+ prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+ prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+ prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+ prefix nrl: <http://www.semanticdesktop.org/ontologies/2007/08/15/nrl#> .
+ prefix nie: <http://www.semanticdesktop.org/ontologies/2007/01/19/nie#> .
+
+ prefix mlo: <http://www.tracker-project.org/temp/mlo#> .
+ prefix tracker: <http://www.tracker-project.org/ontologies/tracker#> .
+
+mlo: a tracker:Namespace ;
+    tracker:prefix "mlo" .
+
+mlo:GeoPoint a rdfs:Class ;
+    rdfs:label "Point on the earth" ;
+    rdfs:comment "The inherited properties from InformationElement can be used to add details." ;
+    rdfs:subClassOf nie:InformationElement .
+
+# Should this be a subclass of nao:Tag?
+mlo:PointOfInterest a rdfs:Class ;
+    rdfs:label "Annotation for a point (FIXME subclass of nao:Tag?)" ;
+    rdfs:subClassOf nie:InformationElement ;
+    rdfs:comment "Use the nie title, description, ...  properties".
+
+mlo:LocationBoundingBox a rdfs:Class ;
+    rdfs:label "Box containing a relevant location (places that cannot be described in one concrete point)" ;
+    rdfs:subClassOf nie:InformationElement .
+
+mlo:Route a rdfs:Class ;
+    rdfs:label "Bounding box with an specific use-case" ;
+    rdfs:subClassOf mlo:LocationBoundingBox .
+
+#Properties of GeoPoint
+mlo:latitude a rdf:Property ;
+    rdfs:label "Latitude";
+    rdfs:comment "Positive values for the north hemisphere, negative for the south" ;
+    rdfs:domain mlo:GeoPoint ;
+    rdfs:range  xsd:double .
+
+mlo:longitude a rdf:Property ;
+    rdfs:label "Longitude" ;
+    rdfs:comment "Positive to one side of the Greenwich meridian, negative to the the other" ;
+    rdfs:domain mlo:GeoPoint ;
+    rdfs:range  xsd:double .
+
+mlo:altitude a rdf:Property ;
+    rdfs:label "Altitude" ;
+    rdfs:comment "Altitude above mean sea level";
+    rdfs:domain mlo:GeoPoint ;
+    rdfs:range  xsd:integer .
+
+mlo:timestamp a rdf:Property ;
+    rdfs:label "Timestamp" ;
+    rdfs:comment "Timestamp when the geopoint is referenced. Create subproperties for certain use cases" ;
+    rdfs:domain mlo:GeoPoint ;
+    rdfs:range xsd:dateTime .
+
+# Properties of LocationBoundingBox
+mlo:boxSouthWestCorner a rdf:Property ;
+    rdfs:label "South-west corner of the bounding box" ;
+    rdfs:domain mlo:LocationBoundingBox ;
+    rdfs:range  mlo:GeoPoint.
+
+mlo:boxEastLimit a rdf:Property ;
+    rdfs:label "Length of the box in the East direction" ;
+    rdfs:domain mlo:LocationBoundingBox ;
+    rdfs:range mlo:GeoPoint.
+
+mlo:boxVerticalLimit a rdf:Property ;
+    rdfs:label "Length of the box in the Up direction (height)" ;
+    rdfs:domain mlo:LocationBoundingBox ;
+    rdfs:range mlo:GeoPoint.
+
+mlo:boxNorthLimit a rdf:Property ;
+    rdfs:label "Length of the box in the North direction" ;
+    rdfs:domain mlo:LocationBoundingBox ;
+    rdfs:range mlo:GeoPoint.
+
+# Properties of Rouce
+mlo:startTime a rdf:Property ;
+    rdfs:label "Time when the first point in the route was saved" ;
+    rdfs:domain mlo:Route ;
+    rdfs:range  xsd:dateTime .
+
+mlo:endTime a rdf:Property ;
+    rdfs:label "Time when the last point in the route was saved" ;
+    rdfs:domain mlo:Route ;
+    rdfs:range  xsd:dateTime .
+
+mlo:routeDetails a rdf:Property ;
+    rdfs:label "Pointer to a file containing route details (e.g. KML file)." ;
+    rdfs:comment "FIXME Domain can be resource if we handle map-files correctly in the ontology";
+    rdfs:domain mlo:Route ;
+    rdfs:range  xsd:string . 
+
+
+# FIXME Domain rdfs:Resource?? to link files and not only content?
+mlo:location a rdf:Property ;
+    rdfs:label "Property linking something to a location" ;
+    rdfs:comment "This can be subclassed to add semantics" ;
+    rdfs:domain nie:InformationElement ;
+    rdfs:range mlo:GeoPoint .
diff --git a/utils/services/ttl_html.c b/utils/services/ttl_html.c
index b8120b2..bb13636 100644
--- a/utils/services/ttl_html.c
+++ b/utils/services/ttl_html.c
@@ -12,6 +12,7 @@ Namespace NAMESPACES [] = {
         {"dc", "http://purl.org/dc/elements/1.1/"},
         {"fts", "http://www.tracker-project.org/ontologies/fts#"},
         {"mto", "http://www.tracker-project.org/temp/mto#"},
+        {"mlo", "http://www.tracker-project.org/temp/mlo#"},
         {"nao", "http://www.semanticdesktop.org/ontologies/2007/08/15/nao#"},
         {"ncal", "http://www.semanticdesktop.org/ontologies/2007/04/02/ncal#"},
         {"nco", "http://www.semanticdesktop.org/ontologies/2007/03/22/nco#"},
@@ -64,7 +65,10 @@ qname_to_shortname (const gchar *qname)
         for (i = 0; NAMESPACES[i].namespace != NULL; i++) {
                 if (g_str_has_prefix (qname, NAMESPACES[i].uri)) {
                         pieces = g_strsplit (qname, "#", 2);
-                        g_assert (g_strv_length (pieces) == 2);
+                        if (g_strv_length (pieces) != 2) {
+                                g_warning ("Unable to get the shortname for %s", qname);
+                                break;
+                        }
 
                         name = g_strdup_printf ("%s:%s", 
                                                 NAMESPACES[i].namespace,