`airflow.providers.openlineage.extractors.base`¶

Module Contents¶

`OperatorLineage`	Structure returned from lineage extraction.
`BaseExtractor`	Abstract base extractor class.
`DefaultExtractor`	Extractor that uses get_openlineage_facets_on_start/complete/failure methods.

`DatasetSubclass`
`BaseFacetSubclass`

class airflow.providers.openlineage.extractors.base.OperatorLineage[source]¶

Structure returned from lineage extraction.

class airflow.providers.openlineage.extractors.base.BaseExtractor(operator)[source]¶

Bases: abc.ABC, airflow.utils.log.logging_mixin.LoggingMixin

Abstract base extractor class.

This is used mostly to maintain support for custom extractors.

abstract classmethod get_operator_classnames()[source]¶

Get a list of operators that extractor works for.

This is an abstract method that subclasses should implement. There are operators that work very similarly and one extractor can cover.

extract_on_complete(task_instance)[source]¶

class airflow.providers.openlineage.extractors.base.DefaultExtractor(operator)[source]¶

Extractor that uses get_openlineage_facets_on_start/complete/failure methods.

classmethod get_operator_classnames()[source]¶

Assign this extractor to no operators.

Default extractor is chosen not on the classname basis, but by existence of get_openlineage_facets method on operator.

extract_on_complete(task_instance)[source]¶