Source code for airflow.providers.apache.hive.sensors.hive_partition

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from __future__ import annotations

from typing import TYPE_CHECKING, Any, Sequence

from airflow.providers.apache.hive.hooks.hive import HiveMetastoreHook
from airflow.sensors.base import BaseSensorOperator

    from airflow.utils.context import Context

[docs]class HivePartitionSensor(BaseSensorOperator): """ Waits for a partition to show up in Hive. Note: Because ``partition`` supports general logical operators, it can be inefficient. Consider using NamedHivePartitionSensor instead if you don't need the full flexibility of HivePartitionSensor. :param table: The name of the table to wait for, supports the dot notation (my_database.my_table) :param partition: The partition clause to wait for. This is passed as is to the metastore Thrift client ``get_partitions_by_filter`` method, and apparently supports SQL like notation as in ``ds='2015-01-01' AND type='value'`` and comparison operators as in ``"ds>=2015-01-01"`` :param metastore_conn_id: reference to the :ref: `metastore thrift service connection id <howto/connection:hive_metastore>` """
[docs] template_fields: Sequence[str] = ( "schema", "table", "partition", )
[docs] ui_color = "#C5CAE9"
def __init__( self, *, table: str, partition: str | None = "ds='{{ ds }}'", metastore_conn_id: str = "metastore_default", schema: str = "default", poke_interval: int = 60 * 3, **kwargs: Any, ): super().__init__(poke_interval=poke_interval, **kwargs) if not partition: partition = "ds='{{ ds }}'" self.metastore_conn_id = metastore_conn_id self.table = table self.partition = partition self.schema = schema
[docs] def poke(self, context: Context) -> bool: if "." in self.table: self.schema, self.table = self.table.split(".")"Poking for table %s.%s, partition %s", self.schema, self.table, self.partition) if not hasattr(self, "hook"): hook = HiveMetastoreHook(metastore_conn_id=self.metastore_conn_id) return hook.check_for_partition(self.schema, self.table, self.partition)

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