Hi, I would know if exist a transformer that verify if file header is correct. Thanks
Question
verify file header
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+18- Supporter
Hi @maica,
Can you provide some more info? what kind of file/format? what is a 'correct' header? and can you provide a file to test?
+1- Contributor
Hi @maica,
Can you provide some more info? what kind of file/format? what is a 'correct' header? and can you provide a file to test?
Hi, the file is a simple csv that has a header. I would the ETL fails if the header change.
One way to validate a CSV header might be to use a dynamic CSV reader followed by a Tester to check for "Attribute is missing" on the attributes you expect to find in the CSV.
+18- Supporter
Hi, the file is a simple csv that has a header. I would the ETL fails if the header change.
You might want to have a look at the Schema (Any Format) reader. This reader returns the data model (schema) of your input as a list.
You can then compare this list to a list of expected attributes, something you can use the ListBasedFeatureMerger transformer for.