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From GitBox <...@apache.org>
Subject [GitHub] feng-tao commented on a change in pull request #4265: [AIRFLOW-3406] Implement an Azure CosmosDB operator
Date Wed, 05 Dec 2018 18:23:24 GMT
feng-tao commented on a change in pull request #4265: [AIRFLOW-3406] Implement an Azure CosmosDB
operator
URL: https://github.com/apache/incubator-airflow/pull/4265#discussion_r239180352
 
 

 ##########
 File path: airflow/contrib/hooks/azure_cosmos_hook.py
 ##########
 @@ -0,0 +1,287 @@
+# -*- coding: utf-8 -*-
+#
+# 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.
+import azure.cosmos.cosmos_client as cosmos_client
+from azure.cosmos.errors import HTTPFailure
+import uuid
+
+from airflow.exceptions import AirflowBadRequest
+from airflow.hooks.base_hook import BaseHook
+
+
+class AzureCosmosDBHook(BaseHook):
+    """
+    Interacts with Azure CosmosDB.
+
+    login should be the endpoint uri, password should be the master key
+    optionally, you can use the following extras to default these values
+    {"database_name": "<DATABASE_NAME>", "collection_name": "COLLECTION_NAME"}.
+
+    :param azure_cosmos_conn_id: Reference to the Azure CosmosDB connection.
+    :type azure_cosmos_conn_id: str
+    """
+
+    def __init__(self, azure_cosmos_conn_id='azure_cosmos_default'):
+        self.conn_id = azure_cosmos_conn_id
+        self.connection = self.get_connection(self.conn_id)
+        self.extras = self.connection.extra_dejson
+
+        self.endpoint_uri = self.connection.login
+        self.master_key = self.connection.password
+        self.default_database_name = self.extras.get('database_name')
+        self.default_collection_name = self.extras.get('collection_name')
+        self.cosmos_client = None
+
+    def get_conn(self):
+        """
+        Return a cosmos db client.
+        """
+        if self.cosmos_client is not None:
+            return self.cosmos_client
+
+        # Initialize the Python Azure Cosmos DB client
+        self.cosmos_client = cosmos_client.CosmosClient(self.endpoint_uri, {'masterKey':
self.master_key})
+
+        return self.cosmos_client
+
+    def get_database_name(self, database_name=None):
+        db_name = database_name
+        if db_name is None:
+            db_name = self.default_database_name
+
+        if db_name is None:
+            raise AirflowBadRequest("Database name must be specified")
+
+        return db_name
+
+    def get_collection_name(self, collection_name=None):
 
 Review comment:
   same

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