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FeatureWriter output port: option to create file checksum attribute

Related products:Transformers
  • February 27, 2019
  • 1 reply
  • 29 views

tomf
Supporter
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I'm generating files with my FME workspace for ingestion into another data management platform. In order to get the data ingested I need to also create a file containing a checksum (MD5 currently) for the data platform to check file integrity.

As I'm already using the FeatureWriter to create files before pushing them to the platform I would like to see the option of being able to create a checksum for the written file and adding it as an output summary attribute, then I can easily use the same workspace to perform the complete upload process.

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1 reply

david_r
Celebrity
  • February 27, 2019

It's an interesting idea, I sometimes need to do the same thing and am currently handling this manually in the shutdown python script.

Some questions for how this might be implemented:

  • How should such an option work for non-file based output formats? Databases, web services, etc?
  • If the output is a multi-file format (e.g. shape file), which files should be included in the checksum?