# -*- coding: utf-8 -*-
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from airflow.contrib.hooks.azure_cosmos_hook import AzureCosmosDBHook
from airflow.models import BaseOperator
from airflow.utils.decorators import apply_defaults
[docs]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)
:type database_name: str
:param collection_name: The name of the collection. (templated)
:type collection_name: str
:param document: The document to insert
:type document: dict
:param azure_cosmos_conn_id: reference to a CosmosDB connection.
:type azure_cosmos_conn_id: str
"""
template_fields = ('database_name', 'collection_name')
ui_color = '#e4f0e8'
@apply_defaults
def __init__(self,
database_name,
collection_name,
document,
azure_cosmos_conn_id='azure_cosmos_default',
*args,
**kwargs):
super(AzureCosmosInsertDocumentOperator, self).__init__(*args, **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):
# 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)