Add Tabular provider (apache#23704)

.github/CODEOWNERS

@@ -59,6 +59,7 @@
 /airflow/providers/google/ @turbaszek
 /airflow/providers/snowflake/ @turbaszek @potiuk @mik-laj
 /airflow/providers/cncf/kubernetes @jedcunningham
+/airflow/providers/tabular/ @Fokko
 /docs/apache-airflow-providers-cncf-kubernetes @jedcunningham
 
 # Dev tools

.github/ISSUE_TEMPLATE/airflow_providers_bug_report.yml

@@ -93,6 +93,7 @@ body:
         - sqlite
         - ssh
         - tableau
+        - tabular
         - telegram
         - trino
         - vertica

CONTRIBUTING.rst

@@ -627,8 +627,8 @@ grpc, hashicorp, hdfs, hive, http, imap, influxdb, jdbc, jenkins, jira, kerberos
 leveldb, microsoft.azure, microsoft.mssql, microsoft.psrp, microsoft.winrm, mongo, mssql, mysql,
 neo4j, odbc, openfaas, opsgenie, oracle, pagerduty, pandas, papermill, password, pinot, plexus,
 postgres, presto, qds, qubole, rabbitmq, redis, s3, salesforce, samba, segment, sendgrid, sentry,
-sftp, singularity, slack, snowflake, spark, sqlite, ssh, statsd, tableau, telegram, trino, vertica,
-virtualenv, webhdfs, winrm, yandex, zendesk
+sftp, singularity, slack, snowflake, spark, sqlite, ssh, statsd, tableau, tabular, telegram, trino,
+vertica, virtualenv, webhdfs, winrm, yandex, zendesk
   .. END EXTRAS HERE
 
 Provider packages

INSTALL

@@ -104,8 +104,8 @@ grpc, hashicorp, hdfs, hive, http, imap, influxdb, jdbc, jenkins, jira, kerberos
 leveldb, microsoft.azure, microsoft.mssql, microsoft.psrp, microsoft.winrm, mongo, mssql, mysql,
 neo4j, odbc, openfaas, opsgenie, oracle, pagerduty, pandas, papermill, password, pinot, plexus,
 postgres, presto, qds, qubole, rabbitmq, redis, s3, salesforce, samba, segment, sendgrid, sentry,
-sftp, singularity, slack, snowflake, spark, sqlite, ssh, statsd, tableau, telegram, trino, vertica,
-virtualenv, webhdfs, winrm, yandex, zendesk
+sftp, singularity, slack, snowflake, spark, sqlite, ssh, statsd, tableau, tabular, telegram, trino,
+vertica, virtualenv, webhdfs, winrm, yandex, zendesk
 # END EXTRAS HERE
 
 # For installing Airflow in development environments - see CONTRIBUTING.rst

airflow/providers/tabular/CHANGELOG.rst

@@ -0,0 +1,24 @@
+ .. 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.
+
+Changelog
+---------
+
+1.0.0
+.....
+
+Initial version of the provider.

airflow/providers/tabular/__init__.py

@@ -0,0 +1,17 @@
+#
+# 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.

airflow/providers/tabular/hooks/__init__.py

@@ -0,0 +1,17 @@
+#
+# 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.

airflow/providers/tabular/hooks/tabular.py

@@ -0,0 +1,91 @@
+# 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 typing import Any, Dict, Tuple
+
+import requests
+from requests import HTTPError
+
+from airflow.hooks.base import BaseHook
+
+DEFAULT_TABULAR_URL = "https://api.tabulardata.io/ws/v1"
+
+TOKENS_ENDPOINT = "oauth/tokens"
+
+
+class TabularHook(BaseHook):
+    """
+    This hook acts as a base hook for tabular services. It offers the ability to generate temporary,
+    short-lived session tokens to use within Airflow submitted jobs.
+
+    :param tabular_conn_id: The :ref:`Tabular connection id<howto/connection:tabular>`
+        which refers to the information to connect to the Tabular OAuth service.
+    """
+
+    conn_name_attr = 'tabular_conn_id'
+    default_conn_name = "tabular_default"
+    conn_type = "tabular"
+    hook_name = "Tabular"
+
+    @staticmethod
+    def get_ui_field_behaviour() -> Dict[str, Any]:
+        """Returns custom field behaviour"""
+        return {
+            "hidden_fields": ["schema", "port"],
+            "relabeling": {
+                "host": "Base URL",
+                "login": "Client ID",
+                "password": "Client Secret",
+            },
+            "placeholders": {
+                "host": DEFAULT_TABULAR_URL,
+                "login": "client_id (token credentials auth)",
+                "password": "secret (token credentials auth)",
+            },
+        }
+
+    def __init__(self, tabular_conn_id: str = default_conn_name) -> None:
+        super().__init__()
+        self.conn_id = tabular_conn_id
+
+    def test_connection(self) -> Tuple[bool, str]:
+        """Test the Tabular connection."""
+        try:
+            self.get_conn()
+            return True, "Successfully fetched token from Tabular"
+        except HTTPError as e:
+            return False, f"HTTP Error: {e}"
+        except Exception as e:
+            return False, str(e)
+
+    def get_conn(self) -> str:
+        """Obtain a short-lived access token via a client_id and client_secret."""
+        conn = self.get_connection(self.conn_id)
+        base_url = conn.host if conn.host else DEFAULT_TABULAR_URL
+        base_url = base_url.rstrip('/')
+        client_id = conn.login
+        client_secret = conn.password
+        headers = {"Content-Type": "application/x-www-form-urlencoded"}
+        data = {"client_id": client_id, "client_secret": client_secret}
+
+        response = requests.post(f"{base_url}/{TOKENS_ENDPOINT}", data=data, headers=headers)
+        response.raise_for_status()
+
+        return response.json()["access_token"]
+
+    def get_token_macro(self):
+        return f'{{{{ conn.{self.conn_id}.get_hook().get_conn() }}}}'

airflow/providers/tabular/provider.yaml

@@ -0,0 +1,43 @@
+# 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.
+
+---
+package-name: apache-airflow-providers-tabular
+name: Tabular
+description: |
+    `Tabular <https://tabular.io/>`__
+
+versions:
+  - 1.0.0
+
+dependencies:
+  - apache-airflow>=2.2.0
+
+integrations:
+  - integration-name: Tabular
+    external-doc-url: https://tabular.io/docs/
+    logo: /integration-logos/tabular/tabular.jpeg
+    tags: [software]
+
+hooks:
+  - integration-name: Tabular
+    python-modules:
+      - airflow.providers.tabular.hooks.tabular
+
+connection-types:
+  - hook-class-name: airflow.providers.tabular.hooks.tabular.TabularHook
+    connection-type: tabular

airflow/utils/db.py

@@ -606,6 +606,14 @@ def create_default_connections(session: Session = NEW_SESSION):
         ),
         session,
     )
+    merge_conn(
+        Connection(
+            conn_id="tabular_default",
+            conn_type="tabular",
+            host="https://api.tabulardata.io/ws/v1",
+        ),
+        session,
+    )
     merge_conn(
         Connection(
             conn_id="trino_default",

docs/apache-airflow-providers-tabular/commits.rst

@@ -0,0 +1,27 @@
+
+ .. 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.
+
+
+Package apache-airflow-providers-tabular
+------------------------------------------------------
+
+`Tabular <https://tabular.io/>`__
+
+
+This is detailed commit list of changes for versions provider package: ``tabular``.
+For high-level changelog, see :doc:`package information including changelog <index>`.

docs/apache-airflow-providers-tabular/connections.rst

@@ -0,0 +1,39 @@
+ .. 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.
+
+.. _howto/connection:tabular:
+
+Tabular Connection
+==================
+
+The Tabular connection type enables connection to Tabular to request a short lived token to access the Apache Iceberg tables. This token can be injected as an environment variable, to be used with Trino, Spark, Flink or your favorite query engine that supports Apache Iceberg.
+
+Default Connection IDs
+----------------------
+
+Tabular Hook uses the parameter ``tabular_conn_id`` for Connection IDs and the value of the parameter as ``tabular_default`` by default. You can create multiple connections in case you want to switch between environments.
+
+Configuring the Connection
+--------------------------
+Client ID
+    The Client ID from Tabular
+
+Client Secret
+    The Client Secret from Tabular
+
+Host
+    Sets the URL to the Tabular environment. By default `https://api.tabulardata.io/ws/v1`

docs/apache-airflow-providers-tabular/index.rst

@@ -0,0 +1,77 @@
+
+ .. 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.
+
+``apache-airflow-providers-tabular``
+====================================
+
+Content
+-------
+
+.. toctree::
+    :maxdepth: 1
+    :caption: Guides
+
+    Connection types <connections>
+
+.. toctree::
+    :hidden:
+    :caption: System tests
+
+    System Tests <_api/tests/system/providers/tabular/index>
+
+.. toctree::
+    :maxdepth: 1
+    :caption: Resources
+
+    Example DAGs <https://github.com/apache/airflow/tree/providers-tabular/1.0.0/tests/system/providers/tabular>
+    PyPI Repository <https://pypi.org/project/apache-airflow-providers-tabular/>
+    Installing from sources <installing-providers-from-sources>
+    Python API <_api/airflow/providers/tabular/index>
+
+
+.. THE REMAINDER OF THE FILE IS AUTOMATICALLY GENERATED. IT WILL BE OVERWRITTEN AT RELEASE TIME!
+
+
+.. toctree::
+    :maxdepth: 1
+    :caption: Commits
+
+    Detailed list of commits <commits>
+
+
+Package apache-airflow-providers-tabular
+------------------------------------------------------
+
+`Tabular <https://tabular.io/>`__
+
+
+Release: 0.0.1
+
+Provider package
+----------------
+
+This is a provider package for ``tabular`` provider. All classes for this provider package
+are in ``airflow.providers.tabular`` python package.
+
+Installation
+------------
+
+You can install this package on top of an existing Airflow 2.1+ installation via
+``pip install apache-airflow-providers-tabular``
+
+.. include:: ../../airflow/providers/tabular/CHANGELOG.rst