def load_ipython_extension(ip):
log.debug("Loading PROV-O-Matic extension")
# Push the prov and replace wrapper functions
ip.push('prov')
ip.push('replace')
# Push the save_prov function (for saving the generated provenance trace to a file)
ip.push('save_prov')
# Push the add_prov function (for adding provenance from external files)
ip.push('add_prov')
# Push the revive function (for binding a value from an inported provenance graph to a new variable)
ip.push('revive')
ip.push('list_entities')
ip.push('list_activities')
## Initialize the PROV-O-Viz adapter
viewer = Viewer()
view_prov = viewer.view_prov
set_provoviz_url = viewer.set_provoviz_url
view_prov_service = viewer.view_prov_service
# Push the PROV-O-Viz functions to the IPython Notebook
ip.push('view_prov')
ip.push('set_provoviz_url')
ip.push('view_prov_service')
## Initialize the Ducktape loader
ducktape = Ducktape(ip)
load_ducktape = ducktape.load
ip.push('load_ducktape')
# Clear the provenance graph
clear_dataset()
try :
add_prov('http://www.w3.org/ns/prov#',url='http://localhost:8000/datafiles/prov-o.ttl')
except :
curwd = os.getcwd()
provopath = os.path.join(curwd,'datafiles/prov-o.ttl')
log.warning('Could not load PROV schema from URL, attempting to load from {}'.format(provopath))
add_prov('http://www.w3.org/ns/prov#',url='file://{}'.format(provopath))
## Initialize the notebookwatcher and code visitor.
nw = NotebookWatcher(ip)
cv = CodeVisitor(nw)
ip.events.register('pre_execute', nw.pre_execute)
ip.events.register('post_execute', nw.post_execute)
ip.ast_transformers.append(cv)
def load(self, provenance_uri,data_uri):
r = requests.get(data_uri)
tables = json.loads(r.content)
for name,data in tables.items():
log.debug("Loading {}".format(name))
self._ip.push({name: data})
self.__dict__[name] = data
r = requests.get(provenance_uri)
add_prov(provenance_uri,r.content)