zhongjiajie commented on a change in pull request #7022: URL: https://github.com/apache/dolphinscheduler/pull/7022#discussion_r760897936
########## File path: dolphinscheduler-python/pydolphinscheduler/src/pydolphinscheduler/tasks/sub_process.py ########## @@ -0,0 +1,65 @@ +# 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. + +"""Task sub_process.""" + +from typing import Dict + +from pydolphinscheduler.constants import TaskType +from pydolphinscheduler.core.process_definition import ProcessDefinitionContext +from pydolphinscheduler.core.task import Task, TaskParams +from pydolphinscheduler.java_gateway import launch_gateway + + +class SubProcessTaskParams(TaskParams): + """Parameter only for Sub Process task type.""" + + def __init__(self, process_definition_code, *args, **kwargs): + super().__init__(*args, **kwargs) + self.process_definition_code = process_definition_code + + +class SubProcess(Task): + """Task SubProcess object, declare behavior for SubProcess task to dolphinscheduler.""" + + def __init__(self, name: str, process_definition_name: str, *args, **kwargs): + self._process_definition_name = process_definition_name + self._process_definition = {} + task_params = SubProcessTaskParams( + process_definition_code=self.get_process_definition_code(), + ) + super().__init__(name, TaskType.SUB_PROCESS, task_params, *args, **kwargs) + + def get_process_definition_code(self) -> str: + """Get process definition code, a wrapper for :func:`get_process_definition_info`.""" + return self.get_process_definition_info(self._process_definition_name).get( + "code" + ) + + def get_process_definition_info(self, process_definition_name: str) -> Dict: + """Get process definition info from java gateway, contains process definition id, name, code.""" + if self._process_definition: + return self._process_definition + else: + gateway = launch_gateway() + process_definition = ProcessDefinitionContext.get() Review comment: Hi @devosend , I do no think it will, for now we have two way to use task in workflow-as-code, with context or direct assignment to task attribute. ```py # Context mode # In this case, sub_process would get `self.process_definiton` # from parent `Task`, and `Task` `self.process_definiton` # would get from `ProcessDefinitionContext` with ProcessDefinition(...) as pd: sub_process = SubProcess(name="test", process_name="sub-name") # Seperate mode # We would directly assign ProcessDefinition instance to # `SubProcess` parameter `process_definiton` and we could use it directly. pd = ProcessDefinition(...) sub_process = SubProcess(name="test", process_name="sub-name", process_definiton=pd) ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
