cassandra_dag

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

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"""
Example Airflow DAG to check if a Cassandra Table and a Records exists
or not using `CassandraTableSensor` and `CassandraRecordSensor`.
"""
from airflow.models import DAG
from airflow.providers.apache.cassandra.sensors.record import CassandraRecordSensor
from airflow.providers.apache.cassandra.sensors.table import CassandraTableSensor
from airflow.utils.dates import days_ago
args = {
'owner': 'Airflow',
}
with DAG(
dag_id='example_cassandra_operator',
default_args=args,
schedule_interval=None,
start_date=days_ago(2),
tags=['example'],
) as dag:
# [START howto_operator_cassandra_table_sensor]
table_sensor = CassandraTableSensor(
task_id="cassandra_table_sensor",
cassandra_conn_id="cassandra_default",
table="keyspace_name.table_name",
)
# [END howto_operator_cassandra_table_sensor]
# [START howto_operator_cassandra_record_sensor]
record_sensor = CassandraRecordSensor(
task_id="cassandra_record_sensor",
cassandra_conn_id="cassandra_default",
table="keyspace_name.table_name",
keys={"p1": "v1", "p2": "v2"},
)
# [END howto_operator_cassandra_record_sensor]
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