[GitHub] [incubator-hudi] bschell opened a new pull request #1040: [HUDI-327] Add null/empty checks to key generators

[GitBox <gi...@apache.org>]

bschell opened a new pull request #1040: [HUDI-327] Add null/empty checks to key generators
URL: https://github.com/apache/incubator-hudi/pull/1040
 
 
   ## Summary
   Adds null and empty checks to all key generators. Also improves error
   messaging for key generator issues.
   
   Additionally gives support to complex key generator to accept null/empty fields within the composite key.
   
   ## What is the purpose of the pull request
   Improve usability by improving null/empty key handling in key generators
   
   ## Brief change log
     - *Improve null/empty handling in key generators*
   
   ## Verify this pull request
   This change added tests and can be verified as follows:
     - Old + New Unit tests pass successfully
   

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