def _create_from_endpoint_config(
endpoint_config: Optional[EndpointConfig],
) -> Optional["EventBroker"]:
"""Instantiate an event broker based on its configuration."""
if endpoint_config is None:
broker = None
elif endpoint_config.type is None or endpoint_config.type.lower() == "pika":
from rasa.core.brokers.pika import PikaEventBroker
# default broker if no type is set
broker = PikaEventBroker.from_endpoint_config(endpoint_config)
elif endpoint_config.type.lower() == "sql":
from rasa.core.brokers.sql import SQLEventBroker
broker = SQLEventBroker.from_endpoint_config(endpoint_config)
elif endpoint_config.type.lower() == "file":
from rasa.core.brokers.file import FileEventBroker
broker = FileEventBroker.from_endpoint_config(endpoint_config)
elif endpoint_config.type.lower() == "kafka":
from rasa.core.brokers.kafka import KafkaEventBroker
broker = KafkaEventBroker.from_endpoint_config(endpoint_config)
else:
broker = _load_from_module_string(endpoint_config)
if broker:
logger.debug(f"Instantiated event broker to '{broker.__class__.__name__}'.")
return broker
def test_kafka_broker_security_protocols(file: Text, exception: Exception):
endpoints_path = f"data/test_endpoints/event_brokers/{file}"
cfg = read_endpoint_config(endpoints_path, "event_broker")
actual = KafkaEventBroker.from_endpoint_config(cfg)
with pytest.raises(exception):
# noinspection PyProtectedMember
actual._create_producer()
def test_kafka_broker_from_config():
endpoints_path = "data/test_endpoints/event_brokers/kafka_plaintext_endpoint.yml"
cfg = read_endpoint_config(endpoints_path, "event_broker")
actual = KafkaEventBroker.from_endpoint_config(cfg)
expected = KafkaEventBroker(
"localhost",
"username",
"password",
topic="topic",
security_protocol="SASL_PLAINTEXT",
)
assert actual.host == expected.host
assert actual.sasl_username == expected.sasl_username
assert actual.sasl_password == expected.sasl_password
assert actual.topic == expected.topic