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https://issues.apache.org/jira/browse/NIFI-3555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15906273#comment-15906273
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Puspendu Banerjee commented on NIFI-3555:
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[~uwegeercken] Hi! The expression , input and output sample doesn't match, may
be underscores {noformat}'_'{noformat} before and after the "fragment" literal
got lost during saving the ticket.
Please provide correct expression and here goes my scenario, which is working
correctly:
{noformat}
Expression-->${fname:substringBefore('.'):append('_fragment_'):append(${fragment.index}):append('_details.csv')}<--
Original fname-->allCountries_100.txt<--
Updated fname-->allCountries_100_fragment_33_details.csv<--
{noformat}
> UpdateAttribute on filename adds extra space
> --------------------------------------------
>
> Key: NIFI-3555
> URL: https://issues.apache.org/jira/browse/NIFI-3555
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core UI
> Affects Versions: 1.1.1
> Environment: Linux, Fedora 25, Nifi 1.1.1
> Reporter: Uwe Geercken
> Priority: Minor
>
> I have used the GetFile and then SplitText processors to split a csv file
> into rows.
> Here is the original filename:
> allCountries_100.txt
> Then I have created an Expression in the UpdateAttribute processor:
> ${filename:substringBefore('.'):append('_fragment_'):append(${fragment.index}):append('_details.csv')}
>
> It creates a new filename by using the original filename plus the fragment
> number from the SplitText processor and adds a string at the end.
> In the output of the PutFile processor all files have an extra space at the
> end behing the ".csv".
> here is an example:
> allCountries_100_fragment_35.csv
> please note the extra space at the end.
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