| # 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 __future__ import annotations |
| |
| from typing import TYPE_CHECKING |
| |
| from airflow.models.taskmap import TaskMap |
| |
| if TYPE_CHECKING: |
| from sqlalchemy.orm import Session |
| |
| from airflow.models.mappedoperator import MappedOperator |
| |
| |
| def expand_mapped_task( |
| mapped: MappedOperator, run_id: str, upstream_task_id: str, length: int, session: Session |
| ): |
| session.add( |
| TaskMap( |
| dag_id=mapped.dag_id, |
| task_id=upstream_task_id, |
| run_id=run_id, |
| map_index=-1, |
| length=length, |
| keys=None, |
| ) |
| ) |
| session.flush() |
| |
| mapped.expand_mapped_task(run_id, session=session) |