Source code for airflow.providers.microsoft.azure.fs.adls

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from __future__ import annotations

from typing import TYPE_CHECKING

from airflow.hooks.base import BaseHook
from airflow.providers.microsoft.azure.utils import get_field

if TYPE_CHECKING:
    from fsspec import AbstractFileSystem

[docs]schemes = ["abfs", "abfss", "adl"]


[docs]def get_fs(conn_id: str | None) -> AbstractFileSystem:
    from adlfs import AzureBlobFileSystem

    if conn_id is None:
        return AzureBlobFileSystem()

    conn = BaseHook.get_connection(conn_id)
    extras = conn.extra_dejson

    connection_string = get_field(
        conn_id=conn_id, conn_type="azure_data_lake", extras=extras, field_name="connection_string"
    )
    account_name = get_field(
        conn_id=conn_id, conn_type="azure_data_lake", extras=extras, field_name="account_name"
    )
    account_key = get_field(
        conn_id=conn_id, conn_type="azure_data_lake", extras=extras, field_name="account_key"
    )
    sas_token = get_field(conn_id=conn_id, conn_type="azure_data_lake", extras=extras, field_name="sas_token")
    tenant = get_field(conn_id=conn_id, conn_type="azure_data_lake", extras=extras, field_name="tenant")

    return AzureBlobFileSystem(
        connection_string=connection_string,
        account_name=account_name,
        account_key=account_key,
        sas_token=sas_token,
        tenant_id=tenant,
        client_id=conn.login,
        client_secret=conn.password,
    )