def createTripCreationGraph(self, userName, userEmail, tripId, tripLegIds, startTime, endTime):
"""Creates and stores the provenacne graph depecting the action of creating the trip"""
#startTime = datetime.datetime.strptime(startTime, "%a, %d %b %Y %H:%M:%S %Z")
#endTime = datetime.datetime.strptime(endTime, "%a, %d %b %Y %H:%M:%S %Z")
#the namespace of the project
cf = Namespace('cf', 'http://users.ecs.soton.ac.uk/pp6g11/ontology/carbonFooprints/')
# create a provenance _container
g = ProvBundle()
g.add_namespace("foaf", "http://xmlns.com/foaf/0.1/")
#create activity
g.activity(cf['tripCreation'], startTime, endTime)
#create entities.
g.entity(cf['trip-' + tripId])
#create trip leg entities
for tripLegId in tripLegIds:
tripLegId = str(tripLegId)
g.entity(cf['tripLeg-' + tripLegId])
g.wasGeneratedBy('cf:tripLeg-' + tripLegId, 'cf:tripCreation')
g.wasDerivedFrom('cf:trip-' + tripId, 'cf:tripLeg-' + tripLegId)
#add relations
g.wasGeneratedBy('cf:trip-' + tripId, 'cf:tripCreation')
#create agent
g.agent('cf:' + userName, {'prov:type': 'prov:Person', 'foaf:mbox': '<mailto:' + userEmail + '>'})
g.wasAssociatedWith('cf:tripCreation', 'cf:' + userName)
g.wasAttributedTo('cf:trip-' + tripId, 'cf:' + userName)
#save the graph
pdBundle = save_bundle(g)
#visualize the graph
path = tempfile.mkdtemp()
filepath = os.path.join(path, 'dot-test.png')
# Convert it to DOT
dot = graph.prov_to_dot(g)
dot.set_dpi(120)
# Write it to a temporary PNG file
#dot.write_png(filepath)
# Display it using matplotlib
#img = mpimg.imread(filepath)
##imgplot = plt.imshow(img)
#plt.show()
#os.remove(filepath)
return pdBundle
def createTempProvGraphImage(self, bundleId):
"""
creates a temporary png image illustrating a provenance graph
"""
pdBundle = TripLegCarbonEmission.objects.get(provBundle = bundleId).provBundle
g = pdBundle.get_prov_bundle()
#visualize the graph
path = "C:\\Users\\Boliev\\My Documents\\Aptana Studio 3 Workspace\\Thesis\\CarbonEmissions\\static\\images\\provGraphs\\"
self.__class__.filepath = os.path.join(path, 'dot-test.png')
# Convert it to DOT
dot = graph.prov_to_dot(g)
dot.set_dpi(120)
# Write it to a temporary PNG file
dot.write_png(self.__class__.filepath)
def bundle_svg(request, bundle_id):
pdBundle = get_object_or_404(PDBundle, pk=bundle_id)
prov_g = pdBundle.get_prov_bundle()
dot = prov_to_dot(prov_g)
svg_content = dot.create(format='svg')
return HttpResponse(content=svg_content, mimetype='image/svg+xml')
def bundle_svg(request, container_id):
container = get_object_or_404(Container, pk=container_id)
prov_g = container.content.get_prov_bundle()
dot = prov_to_dot(prov_g)
svg_content = dot.create(format='svg')
return HttpResponse(content=svg_content, mimetype='image/svg+xml')
