Source code for astronomer.providers.dbt.cloud.triggers.dbt
import asyncio
import time
from typing import Any, AsyncIterator, Dict, Optional, Tuple
from airflow.providers.dbt.cloud.hooks.dbt import DbtCloudJobRunStatus
from airflow.triggers.base import BaseTrigger, TriggerEvent
from astronomer.providers.dbt.cloud.hooks.dbt import DbtCloudHookAsync
[docs]class DbtCloudRunJobTrigger(BaseTrigger):
"""
DbtCloudRunJobTrigger is triggered with run id and account id, makes async Http call to dbt and get the status
for the submitted job with run id in polling interval of time.
:param conn_id: The connection identifier for connecting to Dbt.
:param run_id: The ID of a dbt Cloud job.
:param end_time: Time in seconds to wait for a job run to reach a terminal status. Defaults to 7 days.
:param account_id: The ID of a dbt Cloud account.
:param poll_interval: polling period in seconds to check for the status.
"""
def __init__(
self,
conn_id: str,
run_id: int,
end_time: float,
poll_interval: float,
account_id: Optional[int],
):
super().__init__()
self.run_id = run_id
self.account_id = account_id
self.conn_id = conn_id
self.end_time = end_time
self.poll_interval = poll_interval
[docs] def serialize(self) -> Tuple[str, Dict[str, Any]]:
"""Serializes DbtCloudRunJobTrigger arguments and classpath."""
return (
"astronomer.providers.dbt.cloud.triggers.dbt.DbtCloudRunJobTrigger",
{
"run_id": self.run_id,
"account_id": self.account_id,
"conn_id": self.conn_id,
"end_time": self.end_time,
"poll_interval": self.poll_interval,
},
)
[docs] async def run(self) -> AsyncIterator["TriggerEvent"]:
"""Make async connection to Dbt, polls for the pipeline run status"""
hook = DbtCloudHookAsync(self.conn_id)
try:
while await self.is_still_running(hook):
if self.end_time < time.time():
yield TriggerEvent(
{
"status": "error",
"message": f"Job run {self.run_id} has not reached a terminal status after "
f"{self.end_time} seconds.",
"run_id": self.run_id,
}
)
await asyncio.sleep(self.poll_interval)
job_run_status = await hook.get_job_status(self.run_id, self.account_id)
if job_run_status == DbtCloudJobRunStatus.SUCCESS.value:
yield TriggerEvent(
{
"status": "success",
"message": f"Job run {self.run_id} has completed successfully.",
"run_id": self.run_id,
}
)
elif job_run_status == DbtCloudJobRunStatus.CANCELLED.value:
yield TriggerEvent(
{
"status": "cancelled",
"message": f"Job run {self.run_id} has been cancelled.",
"run_id": self.run_id,
}
)
else:
yield TriggerEvent(
{
"status": "error",
"message": f"Job run {self.run_id} has failed.",
"run_id": self.run_id,
}
)
except Exception as e:
yield TriggerEvent({"status": "error", "message": str(e), "run_id": self.run_id})
[docs] async def is_still_running(self, hook: DbtCloudHookAsync) -> bool:
"""
Async function to check whether the job is submitted via async API is in
running state and returns True if it is still running else
return False
"""
job_run_status = await hook.get_job_status(self.run_id, self.account_id)
if not DbtCloudJobRunStatus.is_terminal(job_run_status):
return True
return False