def test_execute_different_project_ids(self, mock_hook): another_project = 'another-project' operator = PubSubSubscriptionCreateOperator( project_id=TEST_PROJECT, topic=TEST_TOPIC, subscription=TEST_SUBSCRIPTION, subscription_project_id=another_project, task_id=TASK_ID ) mock_hook.return_value.create_subscription.return_value = TEST_SUBSCRIPTION response = operator.execute(None) mock_hook.return_value.create_subscription.assert_called_once_with( project_id=TEST_PROJECT, topic=TEST_TOPIC, subscription=TEST_SUBSCRIPTION, subscription_project_id=another_project, ack_deadline_secs=10, fail_if_exists=False, push_config=None, retain_acked_messages=None, message_retention_duration=None, labels=None, retry=None, timeout=None, metadata=None ) self.assertEqual(response, TEST_SUBSCRIPTION)
def test_execute_no_subscription(self, mock_hook): operator = PubSubSubscriptionCreateOperator(task_id=TASK_ID, topic_project=TEST_PROJECT, topic=TEST_TOPIC) mock_hook.return_value.create_subscription.return_value = ( TEST_SUBSCRIPTION) response = operator.execute(None) mock_hook.return_value.create_subscription.assert_called_once_with( TEST_PROJECT, TEST_TOPIC, None, None, 10, False) self.assertEqual(response, TEST_SUBSCRIPTION)
def test_execute_different_project_ids(self, mock_hook): another_project = 'another-project' operator = PubSubSubscriptionCreateOperator( task_id=TASK_ID, topic_project=TEST_PROJECT, topic=TEST_TOPIC, subscription=TEST_SUBSCRIPTION, subscription_project=another_project) mock_hook.return_value.create_subscription.return_value = ( TEST_SUBSCRIPTION) response = operator.execute(None) mock_hook.return_value.create_subscription.assert_called_once_with( TEST_PROJECT, TEST_TOPIC, TEST_SUBSCRIPTION, another_project, 10, False) self.assertEqual(response, TEST_SUBSCRIPTION)
TOPIC = "PubSubTestTopic" MESSAGE = {"attributes": {"name": "wrench", "mass": "1.3kg", "count": "3"}} default_args = {"start_date": airflow.utils.dates.days_ago(1)} with models.DAG( "example_gcp_pubsub", default_args=default_args, schedule_interval=None, # Override to match your needs ) as example_dag: create_topic = PubSubTopicCreateOperator( task_id="create_topic", topic=TOPIC, project=GCP_PROJECT_ID ) subscribe_task = PubSubSubscriptionCreateOperator( task_id="subscribe_task", topic_project=GCP_PROJECT_ID, topic=TOPIC ) publish_task = PubSubPublishOperator( task_id="publish_task", project=GCP_PROJECT_ID, topic=TOPIC, messages=[MESSAGE] ) unsubscribe_task = PubSubSubscriptionDeleteOperator( task_id="unsubscribe_task", project=GCP_PROJECT_ID, subscription="{{ task_instance.xcom_pull('subscribe_task') }}", ) delete_topic = PubSubTopicDeleteOperator(task_id="delete_topic", topic=TOPIC, project=GCP_PROJECT_ID) create_topic >> [subscribe_task, publish_task] >> unsubscribe_task >> delete_topic
'email_on_retry': False, 'project': project, 'topic': topic, 'subscription': subscription, } echo_template = ''' {% for m in task_instance.xcom_pull(task_ids='pull-messages') %} echo "AckID: {{ m.get('ackId') }}, Base64-Encoded: {{ m.get('message') }}" {% endfor %} ''' with DAG('pubsub-end-to-end', default_args=default_args, schedule_interval=datetime.timedelta(days=1)) as dag: # pylint: disable=no-value-for-parameter # Note that parameters gets passed via dags default_args above. t1 = PubSubTopicCreateOperator(task_id='create-topic') t2 = PubSubSubscriptionCreateOperator(task_id='create-subscription', topic_project=project, subscription=subscription) t3 = PubSubPublishOperator(task_id='publish-messages', messages=messages) t4 = PubSubPullSensor(task_id='pull-messages', ack_messages=True) t5 = BashOperator(task_id='echo-pulled-messages', bash_command=echo_template) t6 = PubSubSubscriptionDeleteOperator(task_id='delete-subscription') t7 = PubSubTopicDeleteOperator(task_id='delete-topic') t1 >> t2 >> t3 t2 >> t4 >> t5 >> t6 >> t7