Add optional function for footer record processing to FlatFileItemReader [BATCH-2539]

Kiichi Kuramoto opened BATCH-2539 and commented

I read BATCH-826, but, for a output file by FlatFileItemWriter,
I think that FlatFileItemReader should support footer handling.

• For output
  • I can write the header records by FlatFileHeaderCallback.
  • I can write the footer records by FlatFileFooterCallback.
• For input
  • The header records processing can be performed.
    (LineCallbackHandler I/F or linesToSkip)
  • The footer records processing can not be performed(hadling and skipping).

Input and output are asymmetrical, it cannot be completed file-to-file job only Spring Batch.
The footer records processing must also be able to in the same way as the header records.
Therefore, for FlatFileItemReader, I would like you to add options as follows.

• skip footer records
• call back I/F for footer records

Affects: 3.0.7

1 votes, 8 watchers

Start by locating FlatFileItemReader and reviewing its existing linesToSkip and LineCallbackHandler handling for input headers. Define the footer boundary and verify how both skipping footer records and invoking a footer callback should work. Done means input processing supports the requested footer options and preserves the existing header behavior.