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From GitBox <...@apache.org>
Subject [GitHub] feng-tao closed pull request #4265: [AIRFLOW-3406] Implement an Azure CosmosDB operator
Date Thu, 06 Dec 2018 18:18:46 GMT
feng-tao closed pull request #4265: [AIRFLOW-3406] Implement an Azure CosmosDB operator
URL: https://github.com/apache/incubator-airflow/pull/4265
 
 
   

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diff --git a/airflow/contrib/example_dags/example_cosmosdb_sensor.py b/airflow/contrib/example_dags/example_cosmosdb_sensor.py
new file mode 100644
index 0000000000..a801d9f41b
--- /dev/null
+++ b/airflow/contrib/example_dags/example_cosmosdb_sensor.py
@@ -0,0 +1,64 @@
+# -*- 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.
+
+"""
+This is only an example DAG to highlight usage of AzureCosmosDocumentSensor to detect
+if a document now exists.
+
+You can trigger this manually with `airflow trigger_dag example_cosmosdb_sensor`.
+
+*Note: Make sure that connection `azure_cosmos_default` is properly set before running
+this example.*
+"""
+
+from airflow import DAG
+from airflow.contrib.sensors.azure_cosmos_sensor import AzureCosmosDocumentSensor
+from airflow.contrib.operators.azure_cosmos_insertdocument_operator import AzureCosmosInsertDocumentOperator
+from airflow.utils import dates
+
+default_args = {
+    'owner': 'airflow',
+    'depends_on_past': False,
+    'start_date': dates.days_ago(2),
+    'email': ['airflow@example.com'],
+    'email_on_failure': False,
+    'email_on_retry': False
+}
+
+dag = DAG('example_cosmosdb_sensor', default_args=default_args)
+
+dag.doc_md = __doc__
+
+t1 = AzureCosmosDocumentSensor(
+    task_id='check_cosmos_file',
+    database_name='airflow_example_db',
+    collection_name='airflow_example_coll',
+    document_id='airflow_checkid',
+    azure_cosmos_conn_id='azure_cosmos_default',
+    dag=dag)
+
+t2 = AzureCosmosInsertDocumentOperator(
+    task_id='insert_cosmos_file',
+    dag=dag,
+    database_name='airflow_example_db',
+    collection_name='new-collection',
+    document={"id": "someuniqueid", "param1": "value1", "param2": "value2"},
+    azure_cosmos_conn_id='azure_cosmos_default')
+
+t2.set_upstream(t1)
diff --git a/airflow/contrib/hooks/azure_cosmos_hook.py b/airflow/contrib/hooks/azure_cosmos_hook.py
new file mode 100644
index 0000000000..01b4007b03
--- /dev/null
+++ b/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):
+        coll_name = collection_name
+        if coll_name is None:
+            coll_name = self.default_collection_name
+
+        if coll_name is None:
+            raise AirflowBadRequest("Collection name must be specified")
+
+        return coll_name
+
+    def does_collection_exist(self, collection_name, database_name=None):
+        """
+        Checks if a collection exists in CosmosDB.
+        """
+        if collection_name is None:
+            raise AirflowBadRequest("Collection name cannot be None.")
+
+        existing_container = list(self.get_conn().QueryContainers(
+            get_database_link(self.__get_database_name(database_name)), {
+                "query": "SELECT * FROM r WHERE r.id=@id",
+                "parameters": [
+                    {"name": "@id", "value": collection_name}
+                ]
+            }))
+        if len(existing_container) == 0:
+            return False
+
+        return True
+
+    def create_collection(self, collection_name, database_name=None):
+        """
+        Creates a new collection in the CosmosDB database.
+        """
+        if collection_name is None:
+            raise AirflowBadRequest("Collection name cannot be None.")
+
+        # We need to check to see if this container already exists so we don't try
+        # to create it twice
+        existing_container = list(self.get_conn().QueryContainers(
+            get_database_link(self.__get_database_name(database_name)), {
+                "query": "SELECT * FROM r WHERE r.id=@id",
+                "parameters": [
+                    {"name": "@id", "value": collection_name}
+                ]
+            }))
+
+        # Only create if we did not find it already existing
+        if len(existing_container) == 0:
+            self.get_conn().CreateContainer(
+                get_database_link(self.__get_database_name(database_name)),
+                {"id": collection_name})
+
+    def does_database_exist(self, database_name):
+        """
+        Checks if a database exists in CosmosDB.
+        """
+        if database_name is None:
+            raise AirflowBadRequest("Database name cannot be None.")
+
+        existing_database = list(self.get_conn().QueryDatabases({
+            "query": "SELECT * FROM r WHERE r.id=@id",
+            "parameters": [
+                {"name": "@id", "value": database_name}
+            ]
+        }))
+        if len(existing_database) == 0:
+            return False
+
+        return True
+
+    def create_database(self, database_name):
+        """
+        Creates a new database in CosmosDB.
+        """
+        if database_name is None:
+            raise AirflowBadRequest("Database name cannot be None.")
+
+        # We need to check to see if this database already exists so we don't try
+        # to create it twice
+        existing_database = list(self.get_conn().QueryDatabases({
+            "query": "SELECT * FROM r WHERE r.id=@id",
+            "parameters": [
+                {"name": "@id", "value": database_name}
+            ]
+        }))
+
+        # Only create if we did not find it already existing
+        if len(existing_database) == 0:
+            self.get_conn().CreateDatabase({"id": database_name})
+
+    def delete_database(self, database_name):
+        """
+        Deletes an existing database in CosmosDB.
+        """
+        if database_name is None:
+            raise AirflowBadRequest("Database name cannot be None.")
+
+        self.get_conn().DeleteDatabase(get_database_link(database_name))
+
+    def delete_collection(self, collection_name, database_name=None):
+        """
+        Deletes an existing collection in the CosmosDB database.
+        """
+        if collection_name is None:
+            raise AirflowBadRequest("Collection name cannot be None.")
+
+        self.get_conn().DeleteContainer(
+            get_collection_link(self.__get_database_name(database_name), collection_name))
+
+    def upsert_document(self, document, database_name=None, collection_name=None, document_id=None):
+        """
+        Inserts a new document (or updates an existing one) into an existing
+        collection in the CosmosDB database.
+        """
+        # Assign unique ID if one isn't provided
+        if document_id is None:
+            document_id = str(uuid.uuid4())
+
+        if document is None:
+            raise AirflowBadRequest("You cannot insert a None document")
+
+        # Add document id if isn't found
+        if 'id' in document:
+            if document['id'] is None:
+                document['id'] = document_id
+        else:
+            document['id'] = document_id
+
+        created_document = self.get_conn().CreateItem(
+            get_collection_link(
+                self.__get_database_name(database_name),
+                self.__get_collection_name(collection_name)),
+            document)
+
+        return created_document
+
+    def insert_documents(self, documents, database_name=None, collection_name=None):
+        """
+        Insert a list of new documents into an existing collection in the CosmosDB database.
+        """
+        if documents is None:
+            raise AirflowBadRequest("You cannot insert empty documents")
+
+        created_documents = []
+        for single_document in documents:
+            created_documents.append(
+                self.get_conn().CreateItem(
+                    get_collection_link(
+                        self.__get_database_name(database_name),
+                        self.__get_collection_name(collection_name)),
+                    single_document))
+
+        return created_documents
+
+    def delete_document(self, document_id, database_name=None, collection_name=None):
+        """
+        Delete an existing document out of a collection in the CosmosDB database.
+        """
+        if document_id is None:
+            raise AirflowBadRequest("Cannot delete a document without an id")
+
+        self.get_conn().DeleteItem(
+            get_document_link(
+                self.__get_database_name(database_name),
+                self.__get_collection_name(collection_name),
+                document_id))
+
+    def get_document(self, document_id, database_name=None, collection_name=None):
+        """
+        Get a document from an existing collection in the CosmosDB database.
+        """
+        if document_id is None:
+            raise AirflowBadRequest("Cannot get a document without an id")
+
+        try:
+            return self.get_conn().ReadItem(
+                get_document_link(
+                    self.__get_database_name(database_name),
+                    self.__get_collection_name(collection_name),
+                    document_id))
+        except HTTPFailure:
+            return None
+
+    def get_documents(self, sql_string, database_name=None, collection_name=None, partition_key=None):
+        """
+        Get a list of documents from an existing collection in the CosmosDB database via
SQL query.
+        """
+        if sql_string is None:
+            raise AirflowBadRequest("SQL query string cannot be None")
+
+        # Query them in SQL
+        query = {'query': sql_string}
+
+        try:
+            result_iterable = self.get_conn().QueryItems(
+                get_collection_link(
+                    self.__get_database_name(database_name),
+                    self.__get_collection_name(collection_name)),
+                query,
+                partition_key)
+
+            return list(result_iterable)
+        except HTTPFailure:
+            return None
+
+
+def get_database_link(database_id):
+    return "dbs/" + database_id
+
+
+def get_collection_link(database_id, collection_id):
+    return get_database_link(database_id) + "/colls/" + collection_id
+
+
+def get_document_link(database_id, collection_id, document_id):
+    return get_collection_link(database_id, collection_id) + "/docs/" + document_id
diff --git a/airflow/contrib/operators/azure_cosmos_insertdocument_operator.py b/airflow/contrib/operators/azure_cosmos_insertdocument_operator.py
new file mode 100644
index 0000000000..930ff402d0
--- /dev/null
+++ b/airflow/contrib/operators/azure_cosmos_insertdocument_operator.py
@@ -0,0 +1,69 @@
+# -*- 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.
+
+from airflow.contrib.hooks.azure_cosmos_hook import AzureCosmosDBHook
+from airflow.models import BaseOperator
+from airflow.utils.decorators import apply_defaults
+
+
+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: json
+    :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)
diff --git a/airflow/contrib/sensors/azure_cosmos_sensor.py b/airflow/contrib/sensors/azure_cosmos_sensor.py
new file mode 100644
index 0000000000..78b340d4ef
--- /dev/null
+++ b/airflow/contrib/sensors/azure_cosmos_sensor.py
@@ -0,0 +1,67 @@
+# -*- 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.
+from airflow.contrib.hooks.azure_cosmos_hook import AzureCosmosDBHook
+from airflow.sensors.base_sensor_operator import BaseSensorOperator
+from airflow.utils.decorators import apply_defaults
+
+
+class AzureCosmosDocumentSensor(BaseSensorOperator):
+    """
+    Checks for the existence of a document which
+    matches the given query in CosmosDB. Example:
+
+    >>> azure_cosmos_sensor = AzureCosmosDocumentSensor(database_name="somedatabase_name",
+    ...                            collection_name="somecollection_name",
+    ...                            document_id="unique-doc-id",
+    ...                            azure_cosmos_conn_id="azure_cosmos_default",
+    ...                            task_id="azure_cosmos_sensor")
+    """
+    template_fields = ('database_name', 'collection_name', 'document_id')
+
+    @apply_defaults
+    def __init__(
+            self,
+            database_name,
+            collection_name,
+            document_id,
+            azure_cosmos_conn_id="azure_cosmos_default",
+            *args,
+            **kwargs):
+        """
+        Create a new AzureCosmosDocumentSensor
+
+        :param database_name: Target CosmosDB database_name.
+        :type database_name: str
+        :param collection_name: Target CosmosDB collection_name.
+        :type collection_name: str
+        :param document_id: The ID of the target document.
+        :type query: str
+        :param azure_cosmos_conn_id: Reference to the Azure CosmosDB connection.
+        :type azure_cosmos_conn_id: str
+        """
+        super(AzureCosmosDocumentSensor, self).__init__(*args, **kwargs)
+        self.azure_cosmos_conn_id = azure_cosmos_conn_id
+        self.database_name = database_name
+        self.collection_name = collection_name
+        self.document_id = document_id
+
+    def poke(self, context):
+        self.log.info("*** Intering poke")
+        hook = AzureCosmosDBHook(self.azure_cosmos_conn_id)
+        return hook.get_document(self.document_id, self.database_name, self.collection_name)
is not None
diff --git a/airflow/models.py b/airflow/models.py
index 1bca27cbc8..74555902a5 100755
--- a/airflow/models.py
+++ b/airflow/models.py
@@ -667,6 +667,7 @@ class Connection(Base, LoggingMixin):
         ('snowflake', 'Snowflake',),
         ('segment', 'Segment',),
         ('azure_data_lake', 'Azure Data Lake'),
+        ('azure_cosmos', 'Azure CosmosDB'),
         ('cassandra', 'Cassandra',),
         ('qubole', 'Qubole'),
         ('mongo', 'MongoDB'),
@@ -808,6 +809,9 @@ def get_hook(self):
             elif self.conn_type == 'azure_data_lake':
                 from airflow.contrib.hooks.azure_data_lake_hook import AzureDataLakeHook
                 return AzureDataLakeHook(azure_data_lake_conn_id=self.conn_id)
+            elif self.conn_type == 'azure_cosmos':
+                from airflow.contrib.hooks.azure_cosmos_hook import AzureCosmosDBHook
+                return AzureCosmosDBHook(azure_cosmos_conn_id=self.conn_id)
             elif self.conn_type == 'cassandra':
                 from airflow.contrib.hooks.cassandra_hook import CassandraHook
                 return CassandraHook(cassandra_conn_id=self.conn_id)
diff --git a/airflow/utils/db.py b/airflow/utils/db.py
index b6a807c86c..41c6915ee8 100644
--- a/airflow/utils/db.py
+++ b/airflow/utils/db.py
@@ -277,6 +277,10 @@ def initdb(rbac=False):
         models.Connection(
             conn_id='azure_data_lake_default', conn_type='azure_data_lake',
             extra='{"tenant": "<TENANT>", "account_name": "<ACCOUNTNAME>" }'))
+    merge_conn(
+        models.Connection(
+            conn_id='azure_cosmos_default', conn_type='azure_cosmos',
+            extra='{"database_name": "<DATABASE_NAME>", "collection_name": "<COLLECTION_NAME>"
}'))
     merge_conn(
         models.Connection(
             conn_id='cassandra_default', conn_type='cassandra',
diff --git a/docs/integration.rst b/docs/integration.rst
index 7387fc25f4..9a8ca67c3d 100644
--- a/docs/integration.rst
+++ b/docs/integration.rst
@@ -161,6 +161,35 @@ Logging
 Airflow can be configured to read and write task logs in Azure Blob Storage.
 See :ref:`write-logs-azure`.
 
+Azure CosmosDB 
+'''''''''''''''''' 
+ 
+AzureCosmosDBHook communicates via the Azure Cosmos library. Make sure that a 
+Airflow connection of type `azure_cosmos` exists. Authorization can be done by supplying
a 
+login (=Endpoint uri), password (=secret key) and extra fields database_name and collection_name
to specify the  
+default database and collection to use (see connection `azure_cosmos_default` for an example).

+ 
+- :ref:`AzureCosmosDBHook`: Interface with Azure CosmosDB. 
+- :ref:`AzureCosmosInsertDocumentOperator`: Simple operator to insert document into CosmosDB.

+- :ref:`AzureCosmosDocumentSensor`: Simple sensor to detect document existence in CosmosDB.

+
+.. AzureCosmosDBHook: 
+ 
+AzureCosmosDBHook 
+""""""""" 
+ 
+.. autoclass:: airflow.contrib.hooks.azure_cosmos_hook.AzureCosmosDBHook 
+ 
+AzureCosmosInsertDocumentOperator 
+""""""""" 
+ 
+.. autoclass:: airflow.contrib.operators.azure_cosmos_insertdocument_operator.AzureCosmosInsertDocumentOperator

+ 
+AzureCosmosDocumentSensor 
+""""""""" 
+ 
+.. autoclass:: airflow.contrib.sensors.azure_cosmos_sensor.AzureCosmosDocumentSensor 
+
 Azure Data Lake
 '''''''''''''''
 
diff --git a/setup.py b/setup.py
index f4d226de5b..847e56060d 100644
--- a/setup.py
+++ b/setup.py
@@ -151,6 +151,7 @@ def write_version(filename=os.path.join(*['airflow',
     'azure-mgmt-datalake-store==0.4.0',
     'azure-datalake-store==0.0.19'
 ]
+azure_cosmos = ['azure-cosmos>=3.0.1']
 cassandra = ['cassandra-driver>=3.13.0']
 celery = [
     'celery>=4.1.1, <4.2.0',
@@ -265,10 +266,11 @@ def write_version(filename=os.path.join(*['airflow',
 
 devel_minreq = devel + kubernetes + mysql + doc + password + s3 + cgroups
 devel_hadoop = devel_minreq + hive + hdfs + webhdfs + kerberos
+devel_azure = devel_minreq + azure_data_lake + azure_cosmos
 devel_all = (sendgrid + devel + all_dbs + doc + samba + s3 + slack + crypto + oracle +
              docker + ssh + kubernetes + celery + azure_blob_storage + redis + gcp_api +
              datadog + zendesk + jdbc + ldap + kerberos + password + webhdfs + jenkins +
-             druid + pinot + segment + snowflake + elasticsearch + azure_data_lake +
+             druid + pinot + segment + snowflake + elasticsearch + azure_data_lake + azure_cosmos
+
              atlas)
 
 # Snakebite & Google Cloud Dataflow are not Python 3 compatible :'(
@@ -343,6 +345,7 @@ def do_setup():
             'async': async_packages,
             'azure_blob_storage': azure_blob_storage,
             'azure_data_lake': azure_data_lake,
+            'azure_cosmos': azure_cosmos,
             'cassandra': cassandra,
             'celery': celery,
             'cgroups': cgroups,
@@ -353,6 +356,7 @@ def do_setup():
             'datadog': datadog,
             'devel': devel_minreq,
             'devel_hadoop': devel_hadoop,
+            'devel_azure': devel_azure,
             'doc': doc,
             'docker': docker,
             'druid': druid,
diff --git a/tests/contrib/hooks/test_azure_cosmos_hook.py b/tests/contrib/hooks/test_azure_cosmos_hook.py
new file mode 100644
index 0000000000..653242a34b
--- /dev/null
+++ b/tests/contrib/hooks/test_azure_cosmos_hook.py
@@ -0,0 +1,202 @@
+# -*- 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 json
+import unittest
+import uuid
+
+from airflow.exceptions import AirflowException
+from airflow.contrib.hooks.azure_cosmos_hook import AzureCosmosDBHook
+
+from airflow import configuration
+from airflow import models
+from airflow.utils import db
+
+import logging
+
+try:
+    from unittest import mock
+
+except ImportError:
+    try:
+        import mock
+    except ImportError:
+        mock = None
+
+
+class TestAzureCosmosDbHook(unittest.TestCase):
+
+    # Set up an environment to test with
+    def setUp(self):
+        # set up some test variables
+        self.test_end_point = 'https://test_endpoint:443'
+        self.test_master_key = 'magic_test_key'
+        self.test_database_name = 'test_database_name'
+        self.test_collection_name = 'test_collection_name'
+        self.test_database_default = 'test_database_default'
+        self.test_collection_default = 'test_collection_default'
+        configuration.load_test_config()
+        db.merge_conn(
+            models.Connection(
+                conn_id='azure_cosmos_test_key_id',
+                conn_type='azure_cosmos',
+                login=self.test_end_point,
+                password=self.test_master_key,
+                extra=json.dumps({'database_name': self.test_database_default,
+                                  'collection_name': self.test_collection_default})
+            )
+        )
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_create_database(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.cosmos.create_database(self.test_database_name)
+        expected_calls = [mock.call().CreateDatabase({'id': self.test_database_name})]
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_create_database_exception(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.assertRaises(AirflowException, self.cosmos.create_database, None)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_create_container_exception(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.assertRaises(AirflowException, self.cosmos.create_collection, None)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_create_container(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.cosmos.create_collection(self.test_collection_name, self.test_database_name)
+        expected_calls = [mock.call().CreateContainer(
+            'dbs/test_database_name',
+            {'id': self.test_collection_name})]
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_create_container_default(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.cosmos.create_collection(self.test_collection_name)
+        expected_calls = [mock.call().CreateContainer(
+            'dbs/test_database_default',
+            {'id': self.test_collection_name})]
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_upsert_document_default(self, cosmos_mock):
+        test_id = str(uuid.uuid4())
+        cosmos_mock.return_value.CreateItem.return_value = {'id': test_id}
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        returned_item = self.cosmos.upsert_document({'id': test_id})
+        expected_calls = [mock.call().CreateItem(
+            'dbs/' + self.test_database_default + '/colls/' + self.test_collection_default,
+            {'id': test_id})]
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+        logging.getLogger().info(returned_item)
+        self.assertEqual(returned_item['id'], test_id)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_upsert_document(self, cosmos_mock):
+        test_id = str(uuid.uuid4())
+        cosmos_mock.return_value.CreateItem.return_value = {'id': test_id}
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        returned_item = self.cosmos.upsert_document(
+            {'data1': 'somedata'},
+            database_name=self.test_database_name,
+            collection_name=self.test_collection_name,
+            document_id=test_id)
+
+        expected_calls = [mock.call().CreateItem(
+            'dbs/' + self.test_database_name + '/colls/' + self.test_collection_name,
+            {'data1': 'somedata', 'id': test_id})]
+
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+        logging.getLogger().info(returned_item)
+        self.assertEqual(returned_item['id'], test_id)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_insert_documents(self, cosmos_mock):
+        test_id1 = str(uuid.uuid4())
+        test_id2 = str(uuid.uuid4())
+        test_id3 = str(uuid.uuid4())
+        documents = [
+            {'id': test_id1, 'data': 'data1'},
+            {'id': test_id2, 'data': 'data2'},
+            {'id': test_id3, 'data': 'data3'}]
+
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        returned_item = self.cosmos.insert_documents(documents)
+        expected_calls = [
+            mock.call().CreateItem(
+                'dbs/' + self.test_database_default + '/colls/' + self.test_collection_default,
+                {'data': 'data1', 'id': test_id1}),
+            mock.call().CreateItem(
+                'dbs/' + self.test_database_default + '/colls/' + self.test_collection_default,
+                {'data': 'data2', 'id': test_id2}),
+            mock.call().CreateItem(
+                'dbs/' + self.test_database_default + '/colls/' + self.test_collection_default,
+                {'data': 'data3', 'id': test_id3})]
+        logging.getLogger().info(returned_item)
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_delete_database(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.cosmos.delete_database(self.test_database_name)
+        expected_calls = [mock.call().DeleteDatabase('dbs/test_database_name')]
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_delete_database_exception(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.assertRaises(AirflowException, self.cosmos.delete_database, None)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_delete_container_exception(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.assertRaises(AirflowException, self.cosmos.delete_collection, None)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_delete_container(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.cosmos.delete_collection(self.test_collection_name, self.test_database_name)
+        expected_calls = [mock.call().DeleteContainer('dbs/test_database_name/colls/test_collection_name')]
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_delete_container_default(self, cosmos_mock):
+        self.cosmos = AzureCosmosDBHook(azure_cosmos_conn_id='azure_cosmos_test_key_id')
+        self.cosmos.delete_collection(self.test_collection_name)
+        expected_calls = [mock.call().DeleteContainer('dbs/test_database_default/colls/test_collection_name')]
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/contrib/operators/test_azure_cosmos_insertdocument_operator.py b/tests/contrib/operators/test_azure_cosmos_insertdocument_operator.py
new file mode 100644
index 0000000000..26099d0cb3
--- /dev/null
+++ b/tests/contrib/operators/test_azure_cosmos_insertdocument_operator.py
@@ -0,0 +1,84 @@
+# -*- 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 json
+import unittest
+import uuid
+
+from airflow.contrib.operators.azure_cosmos_insertdocument_operator import AzureCosmosInsertDocumentOperator
+
+from airflow import configuration
+from airflow import models
+from airflow.utils import db
+
+try:
+    from unittest import mock
+
+except ImportError:
+    try:
+        import mock
+    except ImportError:
+        mock = None
+
+
+class TestAzureCosmosDbHook(unittest.TestCase):
+
+    # Set up an environment to test with
+    def setUp(self):
+        # set up some test variables
+        self.test_end_point = 'https://test_endpoint:443'
+        self.test_master_key = 'magic_test_key'
+        self.test_database_name = 'test_database_name'
+        self.test_collection_name = 'test_collection_name'
+        configuration.load_test_config()
+        db.merge_conn(
+            models.Connection(
+                conn_id='azure_cosmos_test_key_id',
+                conn_type='azure_cosmos',
+                login=self.test_end_point,
+                password=self.test_master_key,
+                extra=json.dumps({'database_name': self.test_database_name,
+                                  'collection_name': self.test_collection_name})
+            )
+        )
+
+    @mock.patch('azure.cosmos.cosmos_client.CosmosClient')
+    def test_insert_document(self, cosmos_mock):
+        test_id = str(uuid.uuid4())
+        cosmos_mock.return_value.CreateItem.return_value = {'id': test_id}
+        self.cosmos = AzureCosmosInsertDocumentOperator(
+            database_name=self.test_database_name,
+            collection_name=self.test_collection_name,
+            document={'id': test_id, 'data': 'sometestdata'},
+            azure_cosmos_conn_id='azure_cosmos_test_key_id',
+            task_id='azure_cosmos_sensor')
+
+        expected_calls = [mock.call().CreateItem(
+            'dbs/' + self.test_database_name + '/colls/' + self.test_collection_name,
+            {'data': 'sometestdata', 'id': test_id})]
+
+        self.cosmos.execute(None)
+        cosmos_mock.assert_any_call(self.test_end_point, {'masterKey': self.test_master_key})
+        cosmos_mock.assert_has_calls(expected_calls)
+
+
+if __name__ == '__main__':
+    unittest.main()


 

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