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Add Tableau provider separate from Salesforce Provider #14030

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Feb 25, 2021
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1 change: 1 addition & 0 deletions CONTRIBUTING.rst
Original file line number Diff line number Diff line change
Expand Up @@ -667,6 +667,7 @@ microsoft.mssql odbc
mysql amazon,presto,vertica
opsgenie http
postgres amazon
salesforce tableau
sftp ssh
slack http
snowflake slack
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3 changes: 3 additions & 0 deletions airflow/providers/dependencies.json
Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,9 @@
"postgres": [
"amazon"
],
"salesforce": [
"tableau"
],
"sftp": [
"ssh"
],
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11 changes: 11 additions & 0 deletions airflow/providers/salesforce/CHANGELOG.rst
Original file line number Diff line number Diff line change
Expand Up @@ -19,11 +19,22 @@
Changelog
---------

1.0.2
.....

Tableau provider moved to separate 'tableau' provider

Things done:

- Tableau classes imports classes from 'tableau' provider with deprecation warning


1.0.1
.....

Updated documentation and readme files.


1.0.0
.....

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104 changes: 8 additions & 96 deletions airflow/providers/salesforce/hooks/tableau.py
Original file line number Diff line number Diff line change
Expand Up @@ -14,102 +14,14 @@
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from enum import Enum
from typing import Any, Optional

from tableauserverclient import Pager, PersonalAccessTokenAuth, Server, TableauAuth
from tableauserverclient.server import Auth
import warnings

from airflow.hooks.base import BaseHook
# pylint: disable=unused-import
from airflow.providers.tableau.hooks.tableau import TableauHook, TableauJobFinishCode # noqa


class TableauJobFinishCode(Enum):
"""
The finish code indicates the status of the job.

.. seealso:: https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref.htm#query_job

"""

PENDING = -1
SUCCESS = 0
ERROR = 1
CANCELED = 2


class TableauHook(BaseHook):
"""
Connects to the Tableau Server Instance and allows to communicate with it.

.. seealso:: https://tableau.github.io/server-client-python/docs/

:param site_id: The id of the site where the workbook belongs to.
It will connect to the default site if you don't provide an id.
:type site_id: Optional[str]
:param tableau_conn_id: The Tableau Connection id containing the credentials
to authenticate to the Tableau Server.
:type tableau_conn_id: str
"""

conn_name_attr = 'tableau_conn_id'
default_conn_name = 'tableau_default'
conn_type = 'tableau'
hook_name = 'Tableau'

def __init__(self, site_id: Optional[str] = None, tableau_conn_id: str = default_conn_name) -> None:
super().__init__()
self.tableau_conn_id = tableau_conn_id
self.conn = self.get_connection(self.tableau_conn_id)
self.site_id = site_id or self.conn.extra_dejson.get('site_id', '')
self.server = Server(self.conn.host, use_server_version=True)
self.tableau_conn = None

def __enter__(self):
if not self.tableau_conn:
self.tableau_conn = self.get_conn()
return self

def __exit__(self, exc_type: Any, exc_val: Any, exc_tb: Any) -> None:
self.server.auth.sign_out()

def get_conn(self) -> Auth.contextmgr:
"""
Signs in to the Tableau Server and automatically signs out if used as ContextManager.

:return: an authorized Tableau Server Context Manager object.
:rtype: tableauserverclient.server.Auth.contextmgr
"""
if self.conn.login and self.conn.password:
return self._auth_via_password()
if 'token_name' in self.conn.extra_dejson and 'personal_access_token' in self.conn.extra_dejson:
return self._auth_via_token()
raise NotImplementedError('No Authentication method found for given Credentials!')

def _auth_via_password(self) -> Auth.contextmgr:
tableau_auth = TableauAuth(
username=self.conn.login, password=self.conn.password, site_id=self.site_id
)
return self.server.auth.sign_in(tableau_auth)

def _auth_via_token(self) -> Auth.contextmgr:
tableau_auth = PersonalAccessTokenAuth(
token_name=self.conn.extra_dejson['token_name'],
personal_access_token=self.conn.extra_dejson['personal_access_token'],
site_id=self.site_id,
)
return self.server.auth.sign_in_with_personal_access_token(tableau_auth)

def get_all(self, resource_name: str) -> Pager:
"""
Get all items of the given resource.

.. seealso:: https://tableau.github.io/server-client-python/docs/page-through-results

:param resource_name: The name of the resource to paginate.
For example: jobs or workbooks
:type resource_name: str
:return: all items by returning a Pager.
:rtype: tableauserverclient.Pager
"""
resource = getattr(self.server, resource_name)
return Pager(resource.get)
warnings.warn(
"This module is deprecated. Please use `airflow.providers.tableau.hooks.tableau`.",
DeprecationWarning,
stacklevel=2,
)
88 changes: 10 additions & 78 deletions airflow/providers/salesforce/operators/tableau_refresh_workbook.py
Original file line number Diff line number Diff line change
Expand Up @@ -14,84 +14,16 @@
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from typing import Optional

from tableauserverclient import WorkbookItem
import warnings

from airflow.exceptions import AirflowException
from airflow.models import BaseOperator
from airflow.providers.salesforce.hooks.tableau import TableauHook
from airflow.utils.decorators import apply_defaults
# pylint: disable=unused-import
from airflow.providers.tableau.operators.tableau_refresh_workbook import ( # noqa
TableauRefreshWorkbookOperator,
)


class TableauRefreshWorkbookOperator(BaseOperator):
"""
Refreshes a Tableau Workbook/Extract

.. seealso:: https://tableau.github.io/server-client-python/docs/api-ref#workbooks

:param workbook_name: The name of the workbook to refresh.
:type workbook_name: str
:param site_id: The id of the site where the workbook belongs to.
:type site_id: Optional[str]
:param blocking: By default the extract refresh will be blocking means it will wait until it has finished.
:type blocking: bool
:param tableau_conn_id: The Tableau Connection id containing the credentials
to authenticate to the Tableau Server.
:type tableau_conn_id: str
"""

@apply_defaults
def __init__(
self,
*,
workbook_name: str,
site_id: Optional[str] = None,
blocking: bool = True,
tableau_conn_id: str = 'tableau_default',
**kwargs,
) -> None:
super().__init__(**kwargs)
self.workbook_name = workbook_name
self.site_id = site_id
self.blocking = blocking
self.tableau_conn_id = tableau_conn_id

def execute(self, context: dict) -> str:
"""
Executes the Tableau Extract Refresh and pushes the job id to xcom.

:param context: The task context during execution.
:type context: dict
:return: the id of the job that executes the extract refresh
:rtype: str
"""
with TableauHook(self.site_id, self.tableau_conn_id) as tableau_hook:
workbook = self._get_workbook_by_name(tableau_hook)

job_id = self._refresh_workbook(tableau_hook, workbook.id)
if self.blocking:
from airflow.providers.salesforce.sensors.tableau_job_status import TableauJobStatusSensor

TableauJobStatusSensor(
job_id=job_id,
site_id=self.site_id,
tableau_conn_id=self.tableau_conn_id,
task_id='wait_until_succeeded',
dag=None,
).execute(context={})
self.log.info('Workbook %s has been successfully refreshed.', self.workbook_name)
return job_id

def _get_workbook_by_name(self, tableau_hook: TableauHook) -> WorkbookItem:
for workbook in tableau_hook.get_all(resource_name='workbooks'):
if workbook.name == self.workbook_name:
self.log.info('Found matching workbook with id %s', workbook.id)
return workbook

raise AirflowException(f'Workbook {self.workbook_name} not found!')

def _refresh_workbook(self, tableau_hook: TableauHook, workbook_id: str) -> str:
job = tableau_hook.server.workbooks.refresh(workbook_id)
self.log.info('Refreshing Workbook %s...', self.workbook_name)
return job.id
warnings.warn(
"This module is deprecated. Please use `airflow.providers.tableau.operators.tableau_refresh_workbook`.",
DeprecationWarning,
stacklevel=2,
)
5 changes: 4 additions & 1 deletion airflow/providers/salesforce/provider.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ description: |
`Salesforce <https://www.salesforce.com/>`__

versions:
- 1.0.2
- 1.0.1
- 1.0.0

Expand All @@ -42,10 +43,12 @@ sensors:
- airflow.providers.salesforce.sensors.tableau_job_status

hooks:
- integration-name: Tableau
python-modules:
- airflow.providers.salesforce.hooks.tableau
- integration-name: Salesforce
python-modules:
- airflow.providers.salesforce.hooks.salesforce
- airflow.providers.salesforce.hooks.tableau

hook-class-names:
- airflow.providers.salesforce.hooks.tableau.TableauHook
68 changes: 11 additions & 57 deletions airflow/providers/salesforce/sensors/tableau_job_status.py
Original file line number Diff line number Diff line change
Expand Up @@ -14,63 +14,17 @@
# 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.providers.salesforce.hooks.tableau import TableauHook, TableauJobFinishCode
from airflow.sensors.base import BaseSensorOperator
from airflow.utils.decorators import apply_defaults
import warnings

# pylint: disable=unused-import
from airflow.providers.tableau.sensors.tableau_job_status import ( # noqa
TableauJobFailedException,
TableauJobStatusSensor,
)

class TableauJobFailedException(AirflowException):
"""An exception that indicates that a Job failed to complete."""


class TableauJobStatusSensor(BaseSensorOperator):
"""
Watches the status of a Tableau Server Job.

.. seealso:: https://tableau.github.io/server-client-python/docs/api-ref#jobs

:param job_id: The job to watch.
:type job_id: str
:param site_id: The id of the site where the workbook belongs to.
:type site_id: Optional[str]
:param tableau_conn_id: The Tableau Connection id containing the credentials
to authenticate to the Tableau Server.
:type tableau_conn_id: str
"""

template_fields = ('job_id',)

@apply_defaults
def __init__(
self,
*,
job_id: str,
site_id: Optional[str] = None,
tableau_conn_id: str = 'tableau_default',
**kwargs,
) -> None:
super().__init__(**kwargs)
self.tableau_conn_id = tableau_conn_id
self.job_id = job_id
self.site_id = site_id

def poke(self, context: dict) -> bool:
"""
Pokes until the job has successfully finished.

:param context: The task context during execution.
:type context: dict
:return: True if it succeeded and False if not.
:rtype: bool
"""
with TableauHook(self.site_id, self.tableau_conn_id) as tableau_hook:
finish_code = TableauJobFinishCode(
int(tableau_hook.server.jobs.get_by_id(self.job_id).finish_code)
)
self.log.info('Current finishCode is %s (%s)', finish_code.name, finish_code.value)
if finish_code in [TableauJobFinishCode.ERROR, TableauJobFinishCode.CANCELED]:
raise TableauJobFailedException('The Tableau Refresh Workbook Job failed!')
return finish_code == TableauJobFinishCode.SUCCESS
warnings.warn(
"This module is deprecated. Please use `airflow.providers.tableau.sensors.tableau_job_status`.",
DeprecationWarning,
stacklevel=2,
)
25 changes: 25 additions & 0 deletions airflow/providers/tableau/CHANGELOG.rst
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
.. 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.
17 changes: 17 additions & 0 deletions airflow/providers/tableau/__init__.py
Original file line number Diff line number Diff line change
@@ -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.
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