# baseURI: http://extensionsamples.topbraid.org/services/graphserviceexample
# imports: http://datashapes.org/dash
# prefix: ex

@prefix dash: <http://datashapes.org/dash#> .
@prefix ex: <http://extensionsamples.topbraid.org/services/graphserviceexample#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://extensionsamples.topbraid.org/services/graphserviceexample>
  a owl:Ontology ;
  <http://topbraid.org/swa#defaultNamespace> "http://extensionsamples.topbraid.org/services/graphserviceexample#" ;
  rdfs:label "GraphServiceExample.ttl" ;
  owl:imports <http://datashapes.org/dash> ;
.
ex:GraphStatisticsService
  a dash:GraphService ;
  dash:js """// Here we switch to the graph without owl:imports
let baseGraph = dataset.withoutImports(graph.dataGraphURI);
let localTripleCount = graph.withDataGraph(baseGraph, () => {
	return graph.triples().length;
})

// Construct the response JSON object
let response = {
	localTripleCount: localTripleCount,
	totalTripleCount: graph.triples().length,
}

// As usual, the last expression becomes the overall result
response;""" ;
  dash:responseContentType "application/json" ;
  rdfs:comment """Produces a JSON structure with the number of triples in the graph.

You can try this service from the Web Services section on the Reports tab.""" ;
  rdfs:label "Graph Statistics" ;
.