def poke(self, context, session=None):
if self.execution_delta:
dttm = context['execution_date'] - self.execution_delta
elif self.execution_date_fn:
dttm = self.execution_date_fn(context['execution_date'])
else:
dttm = context['execution_date']
dttm_filter = dttm if isinstance(dttm, list) else [dttm]
serialized_dttm_filter = ','.join(
[datetime.isoformat() for datetime in dttm_filter])
self.log.info('Poking for %s.%s on %s ... ', self.external_dag_id,
self.external_task_id, serialized_dttm_filter)
DM = DagModel
TI = TaskInstance
DR = DagRun
# we only do the check for 1st time, no need for subsequent poke
if self.check_existence and not self.has_checked_existence:
dag_to_wait = session.query(DM).filter(
DM.dag_id == self.external_dag_id).first()
if not dag_to_wait:
raise AirflowException('The external DAG '
'{} does not exist.'.format(
self.external_dag_id))
else:
if not os.path.exists(dag_to_wait.fileloc):
raise AirflowException('The external DAG '
'{} was deleted.'.format(
self.external_dag_id))
if self.external_task_id:
refreshed_dag_info = DagBag(dag_to_wait.fileloc).get_dag(
self.external_dag_id)
if not refreshed_dag_info.has_task(self.external_task_id):
raise AirflowException(
'The external task'
'{} in DAG {} does not exist.'.format(
self.external_task_id, self.external_dag_id))
self.has_checked_existence = True
if self.external_task_id:
count = session.query(TI).filter(
TI.dag_id == self.external_dag_id,
TI.task_id == self.external_task_id,
TI.state.in_(self.allowed_states),
TI.execution_date.in_(dttm_filter),
).count()
else:
count = session.query(DR).filter(
DR.dag_id == self.external_dag_id,
DR.state.in_(self.allowed_states),
DR.execution_date.in_(dttm_filter),
).count()
session.commit()
return count == len(dttm_filter)
def poke(self, context, session=None):
if self.execution_delta:
dttm = context['execution_date'] - self.execution_delta
elif self.execution_date_fn:
dttm = self.execution_date_fn(context['execution_date'])
else:
dttm = context['execution_date']
dttm_filter = dttm if isinstance(dttm, list) else [dttm]
serialized_dttm_filter = ','.join(
[datetime.isoformat() for datetime in dttm_filter])
self.log.info(
'Poking for '
'{self.external_dag_id}.'
'{self.external_task_id} on '
'{} ... '.format(serialized_dttm_filter, **locals()))
DM = DagModel
TI = TaskInstance
DR = DagRun
# we only do the check for 1st time, no need for subsequent poke
if self.check_existence and not self.has_checked_existence:
dag_to_wait = session.query(DM).filter(
DM.dag_id == self.external_dag_id
).first()
if not dag_to_wait:
raise AirflowException('The external DAG '
'{} does not exist.'.format(self.external_dag_id))
else:
if not os.path.exists(dag_to_wait.fileloc):
raise AirflowException('The external DAG '
'{} was deleted.'.format(self.external_dag_id))
if self.external_task_id:
refreshed_dag_info = DagBag(dag_to_wait.fileloc).get_dag(self.external_dag_id)
if not refreshed_dag_info.has_task(self.external_task_id):
raise AirflowException('The external task'
'{} in DAG {} does not exist.'.format(self.external_task_id,
self.external_dag_id))
self.has_checked_existence = True
if self.external_task_id:
count = session.query(TI).filter(
TI.dag_id == self.external_dag_id,
TI.task_id == self.external_task_id,
TI.state.in_(self.allowed_states),
TI.execution_date.in_(dttm_filter),
).count()
else:
count = session.query(DR).filter(
DR.dag_id == self.external_dag_id,
DR.state.in_(self.allowed_states),
DR.execution_date.in_(dttm_filter),
).count()
session.commit()
return count == len(dttm_filter)
def poke(self, context, session=None):
if self.execution_delta:
dttm = context['execution_date'] - self.execution_delta
elif self.execution_date_fn:
dttm = self._handle_execution_date_fn(context=context)
else:
dttm = context['execution_date']
dttm_filter = [dttm]
# dttm_filter = dttm if isinstance(dttm, list) else [dttm]
# serialized_dttm_filter = ','.join(
# [datetime.isoformat() for datetime in dttm_filter])
self.log.info(
'Poking for %s.%s on %s ... ',
self.external_dag_id, self.external_task_id, dttm_filter
)
DM = DagModel
TI = TaskInstance
DR = DagRun
if self.check_existence:
dag_to_wait = session.query(DM).filter(
DM.dag_id == self.external_dag_id
).first()
if not dag_to_wait:
raise AirflowException('The external DAG '
'{} does not exist.'.format(self.external_dag_id))
else:
if not os.path.exists(dag_to_wait.fileloc):
raise AirflowException('The external DAG '
'{} was deleted.'.format(self.external_dag_id))
if self.external_task_id:
refreshed_dag_info = DagBag(dag_to_wait.fileloc).get_dag(self.external_dag_id)
if not refreshed_dag_info.has_task(self.external_task_id):
raise AirflowException('The external task'
'{} in DAG {} does not exist.'.format(self.external_task_id,
self.external_dag_id))
if self.external_task_id:
# .count() is inefficient
count = session.query(func.count()).filter(
TI.dag_id == self.external_dag_id,
TI.task_id == self.external_task_id,
TI.state.in_(self.allowed_states),
TI.execution_date > dttm_filter[0],
).scalar()
else:
# .count() is inefficient
count = session.query(func.count()).filter(
DR.dag_id == self.external_dag_id,
DR.state.in_(self.allowed_states),
DR.execution_date > dttm_filter[0],
).scalar()
session.commit()
return count == len(dttm_filter)
def poke(self, context, session=None):
if self.execution_delta:
dttm = context['execution_date'] - self.execution_delta
elif self.execution_date_fn:
dttm = self._handle_execution_date_fn(context=context)
else:
dttm = context['execution_date']
dttm_filter = dttm if isinstance(dttm, list) else [dttm]
serialized_dttm_filter = ','.join(
[datetime.isoformat() for datetime in dttm_filter])
self.log.info('Poking for %s.%s on %s ... ', self.external_dag_id,
self.external_task_id, serialized_dttm_filter)
DM = DagModel
# we only do the check for 1st time, no need for subsequent poke
if self.check_existence and not self.has_checked_existence:
dag_to_wait = session.query(DM).filter(
DM.dag_id == self.external_dag_id).first()
if not dag_to_wait:
raise AirflowException(
f'The external DAG {self.external_dag_id} does not exist.')
elif not os.path.exists(dag_to_wait.fileloc):
raise AirflowException(
f'The external DAG {self.external_dag_id} was deleted.')
if self.external_task_id:
refreshed_dag_info = DagBag(dag_to_wait.fileloc).get_dag(
self.external_dag_id)
if not refreshed_dag_info.has_task(self.external_task_id):
raise AirflowException(
f'The external task {self.external_task_id} in '
f'DAG {self.external_dag_id} does not exist.')
self.has_checked_existence = True
count_allowed = self.get_count(dttm_filter, session,
self.allowed_states)
count_failed = -1
if len(self.failed_states) > 0:
count_failed = self.get_count(dttm_filter, session,
self.failed_states)
session.commit()
if count_failed == len(dttm_filter):
if self.external_task_id:
raise AirflowException(
f'The external task {self.external_task_id} in DAG {self.external_dag_id} failed.'
)
else:
raise AirflowException(
f'The external DAG {self.external_dag_id} failed.')
return count_allowed == len(dttm_filter)
def _check_for_existence(self, session) -> None:
dag_to_wait = session.query(DagModel).filter(DagModel.dag_id == self.external_dag_id).first()
if not dag_to_wait:
raise AirflowException(f'The external DAG {self.external_dag_id} does not exist.')
if not os.path.exists(dag_to_wait.fileloc):
raise AirflowException(f'The external DAG {self.external_dag_id} was deleted.')
if self.external_task_ids:
refreshed_dag_info = DagBag(dag_to_wait.fileloc).get_dag(self.external_dag_id)
for external_task_id in self.external_task_ids:
if not refreshed_dag_info.has_task(external_task_id):
raise AirflowException(
f'The external task {external_task_id} in '
f'DAG {self.external_dag_id} does not exist.'
)
self._has_checked_existence = True
def poke(self, context, session=None):
"""
Check if specified task_id (dag_id) completed over the specified timedelta.
Slight variation of LastExternalTaskSensor.poke function to
check if at least one task_id (dag_id) completed over the time
interval going from now to the specified one (either via
execution_delta or execution_date_fn.
"""
curr_datetime = timezone.utcnow()
if self.execution_delta:
min_datetime = curr_datetime - self.execution_delta
elif self.execution_date_fn:
min_datetime = curr_datetime - self.execution_date_fn(
context['execution_date'])
else:
min_datetime = context['execution_date']
self.log.info('Poking for %s.%s in state %s on timedelta %s-%s ... ',
self.external_dag_id, self.external_task_id,
self.allowed_states, min_datetime, curr_datetime)
DM = DagModel
TI = TaskInstance
DR = DagRun
# NOTE: v 1.10.3 introduced "check_existence" and "has_checked_existence"
# we only do the check for 1st time, no need for subsequent poke
if self.check_existence and not self.has_checked_existence:
dag_to_wait = session.query(DM).filter(
DM.dag_id == self.external_dag_id).first()
if not dag_to_wait:
raise AirflowException('The external DAG '
'{} does not exist.'.format(
self.external_dag_id))
else:
if not os.path.exists(dag_to_wait.fileloc):
raise AirflowException('The external DAG '
'{} was deleted.'.format(
self.external_dag_id))
if self.external_task_id:
refreshed_dag_info = DagBag(dag_to_wait.fileloc).get_dag(
self.external_dag_id)
if not refreshed_dag_info.has_task(self.external_task_id):
raise AirflowException(
'The external task'
'{} in DAG {} does not exist.'.format(
self.external_task_id, self.external_dag_id))
self.has_checked_existence = True
if self.external_task_id:
count = session.query(TI).filter(
TI.dag_id == self.external_dag_id,
TI.task_id == self.external_task_id,
TI.state.in_(self.allowed_states),
DR.execution_date.between(min_datetime, curr_datetime),
).count()
else:
count = session.query(DR).filter(
DR.dag_id == self.external_dag_id,
DR.state.in_(self.allowed_states),
DR.execution_date.between(min_datetime, curr_datetime),
).count()
self.log.info("found %s tasks for the requested query", count)
session.commit()
return bool(count)
