airflow dynamodb 源码
airflow dynamodb 代码
文件路径：/airflow/providers/amazon/aws/hooks/dynamodb.py
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
"""This module contains the AWS DynamoDB hook"""
from __future__ import annotations
from typing import Iterable
from airflow.exceptions import AirflowException
from airflow.providers.amazon.aws.hooks.base_aws import AwsBaseHook
class DynamoDBHook(AwsBaseHook):
"""
Interact with AWS DynamoDB.
Additional arguments (such as ``aws_conn_id``) may be specified and
are passed down to the underlying AwsBaseHook.
.. seealso::
:class:`~airflow.providers.amazon.aws.hooks.base_aws.AwsBaseHook`
:param table_keys: partition key and sort key
:param table_name: target DynamoDB table
"""
def __init__(
self, *args, table_keys: list | None = None, table_name: str | None = None, **kwargs
) -> None:
self.table_keys = table_keys
self.table_name = table_name
kwargs["resource_type"] = "dynamodb"
super().__init__(*args, **kwargs)
def write_batch_data(self, items: Iterable) -> bool:
"""Write batch items to DynamoDB table with provisioned throughout capacity."""
try:
table = self.get_conn().Table(self.table_name)
with table.batch_writer(overwrite_by_pkeys=self.table_keys) as batch:
for item in items:
batch.put_item(Item=item)
return True
except Exception as general_error:
raise AirflowException(f"Failed to insert items in dynamodb, error: {str(general_error)}")
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
6、 golang
-
7、 openharmony