def poke(self, context: Dict[str, Any]) -> bool:
if '.' in self.table:
self.schema, self.table = self.table.split('.')
self.log.info('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)
def poke(self, context):
if '.' in self.table:
self.schema, self.table = self.table.split('.')
self.log.info('Poking for table %s.%s, partition %s', self.schema,
self.table, self.partition)
if not hasattr(self, 'hook'):
from airflow.providers.apache.hive.hooks.hive import HiveMetastoreHook
hook = HiveMetastoreHook(metastore_conn_id=self.metastore_conn_id)
return hook.check_for_partition(self.schema, self.table,
self.partition)
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)
:type table: str
: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"``
:type partition: str
:param metastore_conn_id: reference to the metastore thrift service
connection id
:type metastore_conn_id: str
"""
template_fields = (
'schema',
'table',
'partition',
)
ui_color = '#C5CAE9'
@apply_defaults
def __init__(self,
table,
partition="ds='{{ ds }}'",
metastore_conn_id='metastore_default',
schema='default',
poke_interval=60 * 3,
*args,
**kwargs):
super().__init__(poke_interval=poke_interval, *args, **kwargs)
if not partition:
partition = "ds='{{ ds }}'"
self.metastore_conn_id = metastore_conn_id
self.table = table
self.partition = partition
self.schema = schema
def poke(self, context):
if '.' in self.table:
self.schema, self.table = self.table.split('.')
self.log.info('Poking for table %s.%s, partition %s', self.schema,
self.table, self.partition)
if not hasattr(self, 'hook'):
from airflow.providers.apache.hive.hooks.hive import HiveMetastoreHook
self.hook = HiveMetastoreHook(
metastore_conn_id=self.metastore_conn_id)
return self.hook.check_for_partition(self.schema, self.table,
self.partition)
