Alan Bohannon
02/06/2024, 9:30 PMScout
02/06/2024, 9:30 PMdata_to_transform
that contains the logic to validate the data and determine its format. Based on the format, you can then pass the data to either format_A_data_asset
or format_B_data_asset
. This is not an anti-pattern; in fact, it's a common use case in data processing pipelines where the transformation logic may vary based on the characteristics of the input data. Here's a conceptual example based on the documentation: python @asset def data_to_transform(): data = ... # Your data extraction logic return data @asset def format_A_data_asset(data_to_transform): if data_is_format_A(data_to_transform): transformed_data = transform_format_A(data_to_transform) return transformed_data else: return None # Skip processing if data is not in format A @asset def format_B_data_asset(data_to_transform): if data_is_format_B(data_to_transform): transformed_data = transform_format_B(data_to_transform) return transformed_data else: return None # Skip processing if data is not in format B
In this example, data_to_transform
is an asset that extracts the data. The format_A_data_asset
and format_B_data_asset
assets take the data from data_to_transform
as input and apply their respective transformation logic only if the data matches their expected format. If the data does not match the format, they return None
or some other indication that they should not process the data. This approach allows you to create a flexible and maintainable ETL pipeline that can handle different data formats and direct them to the appropriate processing logic. Remember to handle the case where data does not match any expected format, and ensure that your pipeline can handle or log such occurrences appropriately.