Hello ,
I have a simple pipeline where i want some csv files to be moved from s3 bucket to SFTP server,
However the files saved in the SFTP server should have different naming that includes the current date, something like:
“mer_YYYYMMDDHHmmss.csv”
i tried in the file name expression field in the sftp server destination to come up with expression evaluating the above but it always produces errors that functions like YYYY() is not a function.
Use expression language to create a new file name. Something like
${str:concat(record:value('/fileInfo/filename'), ".json")}
Instead of “.json”, you can add something like ${YYYY()-MM()-DD()}
More information here.
whenever i use YYYY() or MM() or any other date function
i get this error : Error evaluating expression ${YYYY()-MM()-DD()}: javax.servlet.jsp.el.ELException: No function is mapped to the name "YYYY" .
i have the files in amazon S3 bucket as mer-timestamp-version.csv , for example mer-123654789-1.csv
i want them to be saved in SFTP server as mer_YYYYMMDDhhmmss.csv , for example mer_20220828085700.csv
Try using an expression evaluator. If 123456789 in mer-123654789-1.csv is the timestamp then try creating the file name in an expression evaluator…
get the number bit in another variable called mytimestamp
create a new field called /myfilename as concatenate of
record:value('/fileInfo/filename') + time:millisecondsToDateTime(<long>)
can you please provide me with an example ,
i am having hard time creating the expression without errors.
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