Source code for airflow.contrib.sensors.sagemaker_base_sensor

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from airflow.sensors.base_sensor_operator import BaseSensorOperator
from airflow.utils.decorators import apply_defaults
from airflow.exceptions import AirflowException


[docs]class SageMakerBaseSensor(BaseSensorOperator): """ Contains general sensor behavior for SageMaker. Subclasses should implement get_sagemaker_response() and state_from_response() methods. Subclasses should also implement NON_TERMINAL_STATES and FAILED_STATE methods. """
[docs] ui_color = '#ededed'
@apply_defaults def __init__( self, aws_conn_id='aws_default', *args, **kwargs): super(SageMakerBaseSensor, self).__init__(*args, **kwargs) self.aws_conn_id = aws_conn_id
[docs] def poke(self, context): response = self.get_sagemaker_response() if not response['ResponseMetadata']['HTTPStatusCode'] == 200: self.log.info('Bad HTTP response: %s', response) return False state = self.state_from_response(response) self.log.info('Job currently %s', state) if state in self.non_terminal_states(): return False if state in self.failed_states(): failed_reason = self.get_failed_reason_from_response(response) raise AirflowException('Sagemaker job failed for the following reason: %s' % failed_reason) return True
[docs] def non_terminal_states(self): raise NotImplementedError('Please implement non_terminal_states() in subclass')
[docs] def failed_states(self): raise NotImplementedError('Please implement failed_states() in subclass')
[docs] def get_sagemaker_response(self): raise NotImplementedError('Please implement get_sagemaker_response() in subclass')
[docs] def get_failed_reason_from_response(self, response): return 'Unknown'
[docs] def state_from_response(self, response): raise NotImplementedError('Please implement state_from_response() in subclass')