| # 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. |
| |
| # [start workflow_declare] |
| r""" |
| A example workflow for task dependent. |
| |
| This example will create two workflows named `task_dependent` and `task_dependent_external`. |
| `task_dependent` is true workflow define and run task dependent, while `task_dependent_external` |
| define outside workflow and task from dependent. |
| |
| After this script submit, we would get workflow as below: |
| |
| task_dependent_external: |
| |
| task_1 |
| task_2 |
| task_3 |
| |
| task_dependent: |
| |
| task_dependent(this task dependent on task_dependent_external.task_1 and task_dependent_external.task_2). |
| """ |
| from pydolphinscheduler import configuration |
| from pydolphinscheduler.core.workflow import Workflow |
| from pydolphinscheduler.tasks.dependent import And, Dependent, DependentItem, Or |
| from pydolphinscheduler.tasks.shell import Shell |
| |
| with Workflow( |
| name="task_dependent_external", |
| ) as workflow: |
| task_1 = Shell(name="task_1", command="echo task 1") |
| task_2 = Shell(name="task_2", command="echo task 2") |
| task_3 = Shell(name="task_3", command="echo task 3") |
| workflow.submit() |
| |
| with Workflow( |
| name="task_dependent_example", |
| ) as workflow: |
| task = Dependent( |
| name="task_dependent", |
| dependence=And( |
| Or( |
| DependentItem( |
| project_name=configuration.WORKFLOW_PROJECT, |
| workflow_name="task_dependent_external", |
| dependent_task_name="task_1", |
| ), |
| DependentItem( |
| project_name=configuration.WORKFLOW_PROJECT, |
| workflow_name="task_dependent_external", |
| dependent_task_name="task_2", |
| ), |
| ) |
| ), |
| ) |
| workflow.submit() |
| # [end workflow_declare] |