Source code for airflow.providers.google.cloud.sensors.dataproc

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"""This module contains a Dataproc Job sensor."""
# pylint: disable=C0302

from google.cloud.dataproc_v1beta2.types import JobStatus

from airflow.exceptions import AirflowException
from airflow.providers.google.cloud.hooks.dataproc import DataprocHook
from airflow.sensors.base import BaseSensorOperator
from airflow.utils.decorators import apply_defaults


[docs]class DataprocJobSensor(BaseSensorOperator):
    """
    Check for the state of a previously submitted Dataproc job.

    :param project_id: The ID of the google cloud project in which
        to create the cluster. (templated)
    :type project_id: str
    :param dataproc_job_id: The Dataproc job ID to poll. (templated)
    :type dataproc_job_id: str
    :param location: Required. The Cloud Dataproc region in which to handle the request. (templated)
    :type location: str
    :param gcp_conn_id: The connection ID to use connecting to Google Cloud Platform.
    :type gcp_conn_id: str
    """

[docs]    template_fields = ('project_id', 'location', 'dataproc_job_id')
[docs]    ui_color = '#f0eee4'

    @apply_defaults
    def __init__(
        self,
        *,
        project_id: str,
        dataproc_job_id: str,
        location: str,
        gcp_conn_id: str = 'google_cloud_default',
        **kwargs,
    ) -> None:
        super().__init__(**kwargs)
        self.project_id = project_id
        self.gcp_conn_id = gcp_conn_id
        self.dataproc_job_id = dataproc_job_id
        self.location = location

[docs]    def poke(self, context: dict) -> bool:
        hook = DataprocHook(gcp_conn_id=self.gcp_conn_id)
        job = hook.get_job(job_id=self.dataproc_job_id, location=self.location, project_id=self.project_id)
        state = job.status.state

        if state == JobStatus.State.ERROR:
            raise AirflowException(f'Job failed:\n{job}')
        elif state in {
            JobStatus.State.CANCELLED,
            JobStatus.State.CANCEL_PENDING,
            JobStatus.State.CANCEL_STARTED,
        }:
            raise AirflowException(f'Job was cancelled:\n{job}')
        elif JobStatus.State.DONE == state:
            self.log.debug("Job %s completed successfully.", self.dataproc_job_id)
            return True
        elif JobStatus.State.ATTEMPT_FAILURE == state:
            self.log.debug("Job %s attempt has failed.", self.dataproc_job_id)

        self.log.info("Waiting for job %s to complete.", self.dataproc_job_id)
        return False