Source code for airflow.contrib.sensors.sagemaker_base_sensor

# -*- coding: utf-8 -*-
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
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. """ 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:'Bad HTTP response: %s', response) return False state = self.state_from_response(response)'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
def non_terminal_states(self): raise NotImplementedError('Please implement non_terminal_states() in subclass') def failed_states(self): raise NotImplementedError('Please implement failed_states() in subclass') def get_sagemaker_response(self): raise NotImplementedError('Please implement get_sagemaker_response() in subclass') def get_failed_reason_from_response(self, response): return 'Unknown' def state_from_response(self, response): raise NotImplementedError('Please implement state_from_response() in subclass')