Source code for airflow.providers.google.cloud.links.pubsub

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"""This module contains Google Pub/Sub links."""

from __future__ import annotations

from typing import TYPE_CHECKING

from airflow.providers.google.cloud.links.base import BaseGoogleLink

if TYPE_CHECKING:
    from airflow.models import BaseOperator
    from airflow.utils.context import Context

[docs]PUBSUB_BASE_LINK = "/cloudpubsub"
[docs]PUBSUB_TOPIC_LINK = PUBSUB_BASE_LINK + "/topic/detail/{topic_id}?project={project_id}"
[docs]PUBSUB_SUBSCRIPTION_LINK = PUBSUB_BASE_LINK + "/subscription/detail/{subscription_id}?project={project_id}"


[docs]class PubSubTopicLink(BaseGoogleLink):
    """Helper class for constructing Pub/Sub Topic Link."""

[docs]    name = "Pub/Sub Topic"
[docs]    key = "pubsub_topic"
[docs]    format_str = PUBSUB_TOPIC_LINK

    @staticmethod
[docs]    def persist(
        context: Context,
        task_instance: BaseOperator,
        topic_id: str,
        project_id: str | None,
    ):
        task_instance.xcom_push(
            context,
            key=PubSubTopicLink.key,
            value={"topic_id": topic_id, "project_id": project_id},
        )


[docs]class PubSubSubscriptionLink(BaseGoogleLink):
    """Helper class for constructing Pub/Sub Subscription Link."""

[docs]    name = "Pub/Sub Subscription"
[docs]    key = "pubsub_subscription"
[docs]    format_str = PUBSUB_SUBSCRIPTION_LINK

    @staticmethod
[docs]    def persist(
        context: Context,
        task_instance: BaseOperator,
        subscription_id: str | None,
        project_id: str | None,
    ):
        task_instance.xcom_push(
            context,
            key=PubSubSubscriptionLink.key,
            value={"subscription_id": subscription_id, "project_id": project_id},
        )