Dataweave get rid of empty lines when reading a file

Question

I am processing a file where every other line is blank, how to get rid of these lines using dataweave or groovy? My payload now looks like this

my transformer which is parsing the lines is:

    %dw 1.0
    %output application/java
    ---
    payload map 
    {
        line: $[0]
    }

Thanks for the response

Answer 1

Try the same dataweave with filtering the payload. Check if anything in the incoming payload is empty or null kind of thing which is causing the issue.

%dw 1.0
%output application/java
---
payload filter ($ !=null and $ !='')  map 
{
    line: $[0]
}