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[python] Add task base database and procedure
We add a new task procedure, and add parent class database for both sql task and procedure task fix: #6929
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dolphinscheduler-python/pydolphinscheduler/src/pydolphinscheduler/tasks/database.py
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# 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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"""Task database base task.""" | ||
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from typing import Dict | ||
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from pydolphinscheduler.core.task import Task | ||
from pydolphinscheduler.java_gateway import launch_gateway | ||
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class Database(Task): | ||
"""Base task to handle database, declare behavior for the base handler of database. | ||
It a parent class for all database task of dolphinscheduler. And it should run sql like | ||
job in multiply sql lik engine, such as: | ||
- ClickHouse | ||
- DB2 | ||
- HIVE | ||
- MySQL | ||
- Oracle | ||
- Postgresql | ||
- Presto | ||
- SQLServer | ||
You provider datasource_name contain connection information, it decisions which | ||
database type and database instance would run this sql. | ||
""" | ||
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_task_custom_attr = {"sql"} | ||
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def __init__( | ||
self, task_type: str, name: str, datasource_name: str, sql: str, *args, **kwargs | ||
): | ||
super().__init__(name, task_type, *args, **kwargs) | ||
self.datasource_name = datasource_name | ||
self.sql = sql | ||
self._datasource = {} | ||
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def get_datasource_type(self) -> str: | ||
"""Get datasource type from java gateway, a wrapper for :func:`get_datasource_info`.""" | ||
return self.get_datasource_info(self.datasource_name).get("type") | ||
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def get_datasource_id(self) -> str: | ||
"""Get datasource id from java gateway, a wrapper for :func:`get_datasource_info`.""" | ||
return self.get_datasource_info(self.datasource_name).get("id") | ||
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def get_datasource_info(self, name) -> Dict: | ||
"""Get datasource info from java gateway, contains datasource id, type, name.""" | ||
if self._datasource: | ||
return self._datasource | ||
else: | ||
gateway = launch_gateway() | ||
self._datasource = gateway.entry_point.getDatasourceInfo(name) | ||
return self._datasource | ||
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@property | ||
def task_params(self, camel_attr: bool = True, custom_attr: set = None) -> Dict: | ||
"""Override Task.task_params for sql task. | ||
Sql task have some specials attribute for task_params, and is odd if we | ||
directly set as python property, so we Override Task.task_params here. | ||
""" | ||
params = super().task_params | ||
custom_params = { | ||
"type": self.get_datasource_type(), | ||
"datasource": self.get_datasource_id(), | ||
} | ||
params.update(custom_params) | ||
return params |
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dolphinscheduler-python/pydolphinscheduler/src/pydolphinscheduler/tasks/procedure.py
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# 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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"""Task procedure.""" | ||
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from pydolphinscheduler.constants import TaskType | ||
from pydolphinscheduler.tasks.database import Database | ||
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class Procedure(Database): | ||
"""Task Procedure object, declare behavior for Procedure task to dolphinscheduler. | ||
It should run database procedure job in multiply sql lik engine, such as: | ||
- ClickHouse | ||
- DB2 | ||
- HIVE | ||
- MySQL | ||
- Oracle | ||
- Postgresql | ||
- Presto | ||
- SQLServer | ||
You provider datasource_name contain connection information, it decisions which | ||
database type and database instance would run this sql. | ||
""" | ||
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def __init__(self, name: str, datasource_name: str, sql: str, *args, **kwargs): | ||
super().__init__( | ||
TaskType.PROCEDURE, name, datasource_name, sql, *args, **kwargs | ||
) |
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dolphinscheduler-python/pydolphinscheduler/tests/tasks/test_database.py
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# 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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"""Test Task Database.""" | ||
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from unittest.mock import patch | ||
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import pytest | ||
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from pydolphinscheduler.tasks.database import Database | ||
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TEST_DATABASE_TASK_TYPE = "SQL" | ||
TEST_DATABASE_SQL = "select 1" | ||
TEST_DATABASE_DATASOURCE_NAME = "test_datasource" | ||
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@patch( | ||
"pydolphinscheduler.core.task.Task.gen_code_and_version", | ||
return_value=(123, 1), | ||
) | ||
@patch( | ||
"pydolphinscheduler.tasks.database.Database.get_datasource_info", | ||
return_value=({"id": 1, "type": "mock_type"}), | ||
) | ||
def test_get_datasource_detail(mock_datasource, mock_code_version): | ||
"""Test :func:`get_datasource_type` and :func:`get_datasource_id` can return expect value.""" | ||
name = "test_get_database_detail" | ||
task = Database( | ||
TEST_DATABASE_TASK_TYPE, name, TEST_DATABASE_DATASOURCE_NAME, TEST_DATABASE_SQL | ||
) | ||
assert 1 == task.get_datasource_id() | ||
assert "mock_type" == task.get_datasource_type() | ||
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@pytest.mark.parametrize( | ||
"attr, expect", | ||
[ | ||
( | ||
{ | ||
"task_type": TEST_DATABASE_TASK_TYPE, | ||
"name": "test-task-params", | ||
"datasource_name": TEST_DATABASE_DATASOURCE_NAME, | ||
"sql": TEST_DATABASE_SQL, | ||
}, | ||
{ | ||
"type": "MYSQL", | ||
"datasource": 1, | ||
"sql": TEST_DATABASE_SQL, | ||
"localParams": [], | ||
"resourceList": [], | ||
"dependence": {}, | ||
"waitStartTimeout": {}, | ||
"conditionResult": {"successNode": [""], "failedNode": [""]}, | ||
}, | ||
) | ||
], | ||
) | ||
@patch( | ||
"pydolphinscheduler.core.task.Task.gen_code_and_version", | ||
return_value=(123, 1), | ||
) | ||
@patch( | ||
"pydolphinscheduler.tasks.database.Database.get_datasource_info", | ||
return_value=({"id": 1, "type": "MYSQL"}), | ||
) | ||
def test_property_task_params(mock_datasource, mock_code_version, attr, expect): | ||
"""Test task database task property.""" | ||
task = Database(**attr) | ||
assert expect == task.task_params | ||
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@patch( | ||
"pydolphinscheduler.core.task.Task.gen_code_and_version", | ||
return_value=(123, 1), | ||
) | ||
@patch( | ||
"pydolphinscheduler.tasks.database.Database.get_datasource_info", | ||
return_value=({"id": 1, "type": "MYSQL"}), | ||
) | ||
def test_database_get_define(mock_datasource, mock_code_version): | ||
"""Test task database function get_define.""" | ||
name = "test_database_get_define" | ||
expect = { | ||
"code": 123, | ||
"name": name, | ||
"version": 1, | ||
"description": None, | ||
"delayTime": 0, | ||
"taskType": TEST_DATABASE_TASK_TYPE, | ||
"taskParams": { | ||
"type": "MYSQL", | ||
"datasource": 1, | ||
"sql": TEST_DATABASE_SQL, | ||
"localParams": [], | ||
"resourceList": [], | ||
"dependence": {}, | ||
"conditionResult": {"successNode": [""], "failedNode": [""]}, | ||
"waitStartTimeout": {}, | ||
}, | ||
"flag": "YES", | ||
"taskPriority": "MEDIUM", | ||
"workerGroup": "default", | ||
"failRetryTimes": 0, | ||
"failRetryInterval": 1, | ||
"timeoutFlag": "CLOSE", | ||
"timeoutNotifyStrategy": None, | ||
"timeout": 0, | ||
} | ||
task = Database( | ||
TEST_DATABASE_TASK_TYPE, name, TEST_DATABASE_DATASOURCE_NAME, TEST_DATABASE_SQL | ||
) | ||
assert task.get_define() == expect |
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