def clear_context_broker(url: str, fiware_header: FiwareHeader):
"""
Function deletes all entities, registrations and subscriptions for a
given fiware header
Note:
Always clear the devices first because the IoT-Agent will otherwise
through errors if it cannot find its registration anymore.
Args:
url: Url of the context broker service
fiware_header: header of the tenant
Returns:
None
"""
# create client
client = ContextBrokerClient(url=url, fiware_header=fiware_header)
# clean entities
client.delete_entities(entities=client.get_entity_list())
# clear subscriptions
for sub in client.get_subscription_list():
client.delete_subscription(subscription_id=sub.id)
assert len(client.get_subscription_list()) == 0
# clear registrations
for reg in client.get_registration_list():
client.delete_registration(registration_id=reg.id)
assert len(client.get_registration_list()) == 0
except:
logger.info("There might be no historical data for some calls.")
# ## 2.3 Delete
#
# delete entity in QL
try:
ql_client.delete_entity(entity_id=hall_entity.id,
entity_type=hall_entity.type)
except:
logger.error("Can not delete data from QL")
# delete entity in CV
try:
cb_client.delete_entity(entity_id=hall_entity.id,
entity_type=hall_entity.type)
except:
logger.error("Can not delete entity from context broker")
# delete subscription
try:
cb_client.delete_subscription(subscription_id)
except:
logger.error("Can not delete subscription from context broker.")
# # 3 Clean up (Optional)
#
# Close clients
ql_client.close()
cb_client.close()
