Exemplo n.º 1
0
def askPage(request):

    logging.basicConfig(filename="panorama.log", level=logging.DEBUG)
    # TODO: from question get the SPARQL Query, integrate with backend
    question = request.POST["question"]
    if question == "":
        return redirect(home)

        # use the jar file

        # read the json file
    module_dir = os.path.dirname(__file__)
    file_path = os.path.join(module_dir, "output.json")
    json_file = open(file_path)
    data = json.load(json_file)
    json_file.close()

    # check for other result types
    uris = []
    for result in data["result-set"]:
        if result["type"] == "uri":
            uris.append(result["value"])

            # Using panorama
    solution_graph = Graph()
    print "Downloading resources:"
    # TODO: check efficiency
    for uri in uris:
        print "Downloading ", uri
        solution_graph.parse(uri)

    print "RDF Graph:"
    for term in solution_graph:
        logging.debug(term)

    print "Creating Fresnel Graph"
    f = open("panorama/data/person_foaf.n3")
    fresnel_data = f.read()
    fresnel = Fresnel(fresnel_data)

    print "Making selection"
    selector = Selector(fresnel, solution_graph)
    selector.select()
    print "Formatting"
    formatter = Formatter(selector)
    formatter.format()
    data = ""
    for resource in formatter.result:
        data += resource.render()

    return render_to_response(
        "answer.html", {"result": data, "question": question}, context_instance=RequestContext(request)
    )
Exemplo n.º 2
0
def askPage(request):
	
	#TODO: from question get the SPARQL Query, integrate with backend

	SPARQL = """PREFIX yago: <http://dbpedia.org/class/yago/>
		    PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
		    PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
		    SELECT DISTINCT ?uri ?string
		    WHERE {
			?uri rdf:type yago:RussianCosmonauts .
		        ?uri rdf:type yago:FemaleAstronauts .
			OPTIONAL { ?uri rdfs:label ?string. FILTER (lang(?string) = 'en') }
		  } """
	
	SPARQL1 = """PREFIX dbo: <http://dbpedia.org/ontology/>
		     PREFIX res: <http://dbpedia.org/resource/>
		     PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
		     SELECT DISTINCT ?uri ?string 
		     WHERE {       
     			   res:Brooklyn_Bridge dbo:crosses ?uri . 
      			   OPTIONAL { ?uri rdfs:label ?string. FILTER (lang(?string) = 'en') }
		 }"""
	print "SPARQL query...", SPARQL

	print "Querying endpoint..."
	#Query the endpoint and get result
	result_graph = queryEndpoint( SPARQL )

	print result_graph

	print "Result..."
	for term in result_graph:
		print term

	print "Extracting solution nodes from result..."
	#Parse the resultset and get the URIs
	uris = extractSolutions( result_graph )
	
	print "Solutions..."

	for node in uris:
		print node

	#Using panorama
	solution_graph = Graph()
	print "Downloading resources..."
	#TODO: check efficiency
	for uri in uris:
		print "for uri ", uri
		solution_graph.parse( uri )
	
	print "RDF Graph..."
	for term in solution_graph:
		print term
	
        print "Creating Fresnel Graph.."
	f = open('panorama/data/person_foaf.n3')
        fresnel_data = f.read()
        fresnel = Fresnel( fresnel_data )

	print "Making selection.."
        selector = Selector( fresnel , solution_graph)
        selector.select()
	print "Formatting..."
        formatter = Formatter( selector )
        formatter.format()
	data = "<html>\n<head><link rel='stylesheet' type='text/css' href='/static/style.css'></head>\n<body>\n"
        for resource in formatter.result:
                data += resource.render()
        data += "</body>\n</html>"
	return HttpResponse( data )