s3 read while writing inside sink function

[Sathi Chowdhury <Sa...@elliemae.com>]

Hi fellow Flink enthusiasts,

I am trying figure out a recommended way to read s3 data  while  I am trying to write to s3 using BucketingSink.



BucketingSink<String> s3Sink = new BucketingSink<String>("s3://" + entityBucket + "/")
        .setBucketer(new EntityCustomBucketer())
        .setWriter(new StringWriter<String>())
……………….


The issue is that I want to write to S3 based on a condition check on the filename already existing there.
I wanted to bake this check within the sink itself, any clue on what is needed for this?
Thanks
Sathi


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