airflow cosmos 源码
airflow cosmos 代码
文件路径：/airflow/providers/microsoft/azure/operators/cosmos.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.
from __future__ import annotations
from typing import TYPE_CHECKING, Sequence
from airflow.models import BaseOperator
from airflow.providers.microsoft.azure.hooks.cosmos import AzureCosmosDBHook
if TYPE_CHECKING:
from airflow.utils.context import Context
class AzureCosmosInsertDocumentOperator(BaseOperator):
"""
Inserts a new document into the specified Cosmos database and collection
It will create both the database and collection if they do not already exist
:param database_name: The name of the database. (templated)
:param collection_name: The name of the collection. (templated)
:param document: The document to insert
:param azure_cosmos_conn_id: Reference to the
:ref:`Azure CosmosDB connection<howto/connection:azure_cosmos>`.
"""
template_fields: Sequence[str] = ('database_name', 'collection_name')
ui_color = '#e4f0e8'
def __init__(
self,
*,
database_name: str,
collection_name: str,
document: dict,
azure_cosmos_conn_id: str = 'azure_cosmos_default',
**kwargs,
) -> None:
super().__init__(**kwargs)
self.database_name = database_name
self.collection_name = collection_name
self.document = document
self.azure_cosmos_conn_id = azure_cosmos_conn_id
def execute(self, context: Context) -> None:
# Create the hook
hook = AzureCosmosDBHook(azure_cosmos_conn_id=self.azure_cosmos_conn_id)
# Create the DB if it doesn't already exist
if not hook.does_database_exist(self.database_name):
hook.create_database(self.database_name)
# Create the collection as well
if not hook.does_collection_exist(self.collection_name, self.database_name):
hook.create_collection(self.collection_name, self.database_name)
# finally insert the document
hook.upsert_document(self.document, self.database_name, self.collection_name)
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