[GitHub] [airflow] eladkal commented on a change in pull request #16915: New generic tableau operator: TableauOperator

[GitBox <gi...@apache.org>]

eladkal commented on a change in pull request #16915:
URL: https://github.com/apache/airflow/pull/16915#discussion_r674684808



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File path: airflow/providers/tableau/operators/tableau.py
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@@ -0,0 +1,140 @@
+# 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 Optional
+
+
+from airflow.exceptions import AirflowException
+from airflow.models import BaseOperator
+from airflow.providers.tableau.hooks.tableau import TableauHook, TableauJobFinishCode
+from airflow.providers.tableau.sensors.tableau_job_status import TableauJobFailedException
+
+RESOURCES_METHODS = {
+    'datasources': ['delete', 'refresh'],
+    'groups': ['delete'],
+    'projects': ['delete'],
+    'schedule': ['delete'],
+    'sites': ['delete'],
+    'subscriptions': ['delete'],
+    'tasks': ['delete', 'run'],
+    'users': ['remove'],
+    'workbooks': ['delete', 'refresh'],
+}
+
+
+class TableauOperator(BaseOperator):
+    """
+    Exectues a Tableau API Resource
+
+    .. seealso:: https://tableau.github.io/server-client-python/docs/api-ref
+
+    :param resource: The name of the resource to use.
+    :type resource: str
+    :param method: The name of the resource's method to execute.
+    :type method: str
+    :param find: The reference of resource wich will recive the action.
+    :type find: str
+    :param match_with: The resource field name to be matched with find parameter.
+    :type match_with: Optional[str]
+    :param site_id: The id of the site where the workbook belongs to.
+    :type site_id: Optional[str]
+    :param blocking_refresh: By default the extract refresh will be blocking means it will wait until it has finished.
+    :type blocking_refresh: bool
+    :param tableau_conn_id: The :ref:`Tableau Connection id <howto/connection:tableau>`
+        containing the credentials to authenticate to the Tableau Server.
+    :type tableau_conn_id: str
+    """
+
+    def __init__(
+        self,
+        *,
+        resource: str,
+        method: str,
+        find: str,
+        match_with: str = 'id',
+        site_id: Optional[str] = None,
+        blocking_refresh: bool = True,
+        tableau_conn_id: str = 'tableau_default',
+        **kwargs,
+    ) -> None:
+        super().__init__(**kwargs)
+        self.resource = resource
+        self.method = method
+        self.find = find
+        self.match_with = match_with
+        self.site_id = site_id
+        self.blocking_refresh = blocking_refresh
+        self.tableau_conn_id = tableau_conn_id
+
+    def execute(self, context: dict) -> str:
+        """
+        Executes the Tableau API resource and pushes the job id or downloaded file URI to xcom.
+        :param context: The task context during execution.
+        :type context: dict
+        :return: the id of the job that executes the extract refresh or downloaded file URI.
+        :rtype: str
+        """
+
+        available_resources = RESOURCES_METHODS.keys()
+        if self.resource not in available_resources:
+            error_message = f'Resource not found! Available Resources: {available_resources}'
+            raise AirflowException(error_message)
+
+        available_methods = RESOURCES_METHODS[self.resource]
+        if self.method in available_methods:
+            error_message = f'Method not found! Available methods for {self.resource}: {available_methods}'
+            raise AirflowException(error_message)
+
+        with TableauHook(self.site_id, self.tableau_conn_id) as tableau_hook:
+
+            resource = getattr(tableau_hook.server, self.resource)
+            method = getattr(resource, self.resource)
+
+            resource_id = self._get_resource_id(tableau_hook)
+
+            response = method(resource_id)
+
+        if self.method == 'refresh':
+
+            job_id = response.id
+
+            if self.blocking_refresh:
+
+                finish_code = TableauJobFinishCode.PENDING
+                negative_codes = (TableauJobFinishCode.ERROR, TableauJobFinishCode.CANCELED)
+                while not finish_code == TableauJobFinishCode.SUCCESS:
+                    return_code = int(tableau_hook.server.jobs.get_by_id(job_id).finish_code)
+                    finish_code = TableauJobFinishCode(return_code)
+                    if finish_code in negative_codes:
+                        raise TableauJobFailedException(f'The Tableau Refresh {self.resource} Job failed!')

Review comment:
       The hook has `wait_for_state` function which was recently added. Why not using it?




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