mirror of
https://github.com/open-metadata/OpenMetadata.git
synced 2025-06-27 04:22:05 +00:00
57 lines
2.0 KiB
Python
57 lines
2.0 KiB
Python
# Copyright 2025 Collate
|
|
# Licensed under the Collate Community License, Version 1.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
# https://github.com/open-metadata/OpenMetadata/blob/main/ingestion/LICENSE
|
|
# 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 airflow import DAG
|
|
|
|
# these are params only used in the DAG factory, not in the tasks
|
|
from openmetadata_managed_apis.utils.logger import workflow_logger
|
|
from openmetadata_managed_apis.workflows.ingestion.registry import build_registry
|
|
|
|
from metadata.generated.schema.entity.services.ingestionPipelines.ingestionPipeline import (
|
|
IngestionPipeline,
|
|
)
|
|
|
|
logger = workflow_logger()
|
|
|
|
|
|
class WorkflowBuilder:
|
|
"""
|
|
Generates tasks and a DAG from a config.
|
|
:param workflow_config: configuration for the DAG
|
|
"""
|
|
|
|
def __init__(self, ingestion_pipeline: IngestionPipeline) -> None:
|
|
self.airflow_pipeline = ingestion_pipeline
|
|
self.dag_name: str = self.airflow_pipeline.name.root
|
|
|
|
def build(self) -> DAG:
|
|
"""
|
|
Generates a DAG from the DAG parameters.
|
|
|
|
:returns: dict with dag_id and DAG object
|
|
:type: Dict[str, Union[str, DAG]]
|
|
"""
|
|
dag_type = self.airflow_pipeline.pipelineType.value
|
|
|
|
build_fn = build_registry.registry.get(dag_type)
|
|
if not build_fn:
|
|
msg = f"Cannot find build function for {dag_type} in {build_registry.registry}"
|
|
logger.error(msg)
|
|
raise ValueError(msg)
|
|
|
|
dag = build_fn(self.airflow_pipeline)
|
|
if not isinstance(dag, DAG):
|
|
msg = f"Invalid return type from {build_fn.__name__} when building {dag_type}."
|
|
logger.error(msg)
|
|
raise ValueError(msg)
|
|
|
|
return dag
|