/**
* Extract triplesMap contents.
*
* @param triplesMap
* @param r2rmlMappingGraph
* @param triplesMapSubject
* @param triplesMapResources
* @param storedTriplesMaps
* @throws InvalidR2RMLStructureException
* @throws InvalidR2RMLSyntaxException
* @throws R2RMLDataError
*/
private static void extractTriplesMap(
SesameDataSet r2rmlMappingGraph,
Resource triplesMapSubject,
Map<Resource, TriplesMap> triplesMapResources)
throws InvalidR2RMLStructureException, InvalidR2RMLSyntaxException, R2RMLDataError {
if (log.isDebugEnabled()) {
log.debug(
"[RMLMappingFactory:extractTriplesMap] Extract TriplesMap subject : "
+ triplesMapSubject.stringValue());
}
TriplesMap result = triplesMapResources.get(triplesMapSubject);
// Extract TriplesMap properties
// MVS: create LogicalSource
LogicalSource logicalSource = extractLogicalSource(r2rmlMappingGraph, triplesMapSubject);
// Extract subject
// Create a graph maps storage to save all met graph uri during parsing.
Set<GraphMap> graphMaps = new HashSet<GraphMap>();
// log.debug("[RMLMappingFactory:extractTriplesMap] Current number of created graphMaps : "
// + graphMaps.size());
SubjectMap subjectMap =
extractSubjectMap(r2rmlMappingGraph, triplesMapSubject, graphMaps, result);
// log.debug("[RMLMappingFactory:extractTriplesMap] Current number of created graphMaps : "
// + graphMaps.size());
// Extract predicate-object maps
Set<PredicateObjectMap> predicateObjectMaps =
extractPredicateObjectMaps(
r2rmlMappingGraph, triplesMapSubject, graphMaps, result, triplesMapResources);
log.debug(
"[RMLMappingFactory:extractTriplesMap] Current number of created graphMaps : "
+ graphMaps.size());
// Fill triplesMap
for (PredicateObjectMap predicateObjectMap : predicateObjectMaps) {
result.addPredicateObjectMap(predicateObjectMap);
}
result.setLogicalSource(logicalSource);
result.setSubjectMap(subjectMap);
log.debug(
"[RMLMappingFactory:extractTriplesMap] Extract of TriplesMap subject : "
+ triplesMapSubject.stringValue()
+ " done.");
}
