airflow dynamodb 源码
airflow dynamodb 代码
文件路径:/airflow/providers/amazon/aws/hooks/dynamodb.py
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# to you under the Apache License, Version 2.0 (the
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"""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)}")
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