Source code for tests.system.apache.cassandra.example_cassandra_dag

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"""
Example Airflow DAG to check if a Cassandra Table and a Records exists
or not using `CassandraTableSensor` and `CassandraRecordSensor`.
"""

from __future__ import annotations

import os
from datetime import datetime

from airflow.models import DAG
from airflow.providers.apache.cassandra.sensors.record import CassandraRecordSensor
from airflow.providers.apache.cassandra.sensors.table import CassandraTableSensor

# Ignore missing args provided by default_args
# mypy: disable-error-code="call-arg"


[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]DAG_ID = "example_cassandra_operator"

# [START howto_operator_cassandra_sensors]
with DAG(
    dag_id=DAG_ID,
    schedule=None,
    start_date=datetime(2021, 1, 1),
    default_args={"table": "keyspace_name.table_name"},
    catchup=False,
    tags=["example"],
) as dag:
[docs]    table_sensor = CassandraTableSensor(task_id="cassandra_table_sensor")

    record_sensor = CassandraRecordSensor(task_id="cassandra_record_sensor", keys={"p1": "v1", "p2": "v2"})
# [END howto_operator_cassandra_sensors]

from tests_common.test_utils.system_tests import get_test_run  # noqa: E402

# Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)
[docs]test_run = get_test_run(dag)