CODEWITHSUNDEEP
javaspringspring-batch
oneworld
oneworld

Reputation: 791

Spring Batch Reading Multiple files with Dynamic names

I am a newbie in Spring Batch. I have already created working code using FlatFileItemReader where I am getting the preset file name from a property file. In a new requirement I would not know the file name. For instance, the below could be the files and their names, all placed in the same location.

...\files2read\<SOME-RANDOM-ID>.<YYMMDD>.<EXTN>

...\files2read\123.140613.ABB - @Pick this
...\files2read\234.140610.ABB
...\files2read\345.140607.ABB

...\files2read\123.140613.ABC - @Pick this
...\files2read\234.140610.ABC
...\files2read\345.140607.ABC

...\files2read\123.140613.ABD - @Pick this
...\files2read\234.140610.ABD
...\files2read\345.140607.ABD

There might be multiple files as the time goes, but I need to pick the latest file looking at the date on the file name, and per each file extension (i.e., @Pick this)

I have looked at the MultiResourceItemReader where the resources can be specified as pattern. This will allow me to read all the files matching a file extension but not as I require here. Is there an elegant solution to this, rather than writing each file type pattern as a separate step? Also I still not sure how to pick the latest file looking at the date here.

I am using this example as a reference. Please let me know your thoughts. Thanks in advance.

Upvotes: 1

Views: 1285

Answers (1)

Luca Basso Ricci
Luca Basso Ricci

Reputation: 18413

You can implements your own ResourcePatternResolver and return resources you want.

Upvotes: 0

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