def NFFG_Update(self, new_nffg):
# Check and get the session id for this user-graph couple
logging.debug(
"Update NF-FG: check if the user " + self.user_data.user_id + " has already instantiated the graph " + new_nffg.id + ".")
session = GraphSession().getActiveUserGraphSession(self.user_data.user_id, new_nffg.id, error_aware=True)
if session is None:
return None
self.__session_id = session.session_id
logging.debug("Update NF-FG: already instantiated, trying to update it")
try:
logging.debug(
"Update NF-FG: updating session " + self.__session_id + " from user " + self.user_data.username + " on tenant " + self.user_data.tenant)
GraphSession().updateStatus(self.__session_id, 'updating')
# Get the old NFFG
old_nffg = GraphSession().getNFFG(self.__session_id)
logging.debug("Update NF-FG: the old session: " + old_nffg.getJSON())
# Get the updated NFFG
updated_nffg = old_nffg.diff(new_nffg)
logging.debug("Update NF-FG: coming updates: " + updated_nffg.getJSON(True))
# Delete useless endpoints and flowrules, from DB and Network Controller
self.__NFFG_NC_DeleteAndUpdate(updated_nffg)
# Update database
GraphSession().updateNFFG(updated_nffg, self.__session_id)
# Send flowrules to Network Controller
self.__NC_FlowsInstantiation(updated_nffg)
logging.debug("Update NF-FG: session " + self.__session_id + " correctly updated!")
GraphSession().updateStatus(self.__session_id, 'complete')
# Update the resource description .json
ResourceDescription().updateAll()
ResourceDescription().saveFile()
Messaging().PublishDomainConfig()
except Exception as ex:
logging.error("Update NF-FG: ", ex)
self.__NFFG_NC_deleteGraph()
GraphSession().updateError(self.__session_id)
raise ex
return self.__session_id
def NFFG_Delete(self, nffg_id):
session = GraphSession().getActiveUserGraphSession(self.user_data.user_id, nffg_id, error_aware=False)
if session is None:
raise sessionNotFound("Delete NF-FG: session not found for graph " + str(nffg_id))
self.__session_id = session.session_id
try:
instantiated_nffg = GraphSession().getNFFG(self.__session_id)
logging.debug("Delete NF-FG: [session=" + str(
self.__session_id) + "] we are going to delete: " + instantiated_nffg.getJSON())
self.__NFFG_NC_deleteGraph()
logging.debug("Delete NF-FG: session " + self.__session_id + " correctly deleted!")
# Update the resource description .json
ResourceDescription().updateAll()
ResourceDescription().saveFile()
Messaging().PublishDomainConfig()
except Exception as ex:
logging.error("Delete NF-FG: ", ex)
raise ex
