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https://issues.apache.org/jira/browse/NIFI-6502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alessandro D'Armiento reassigned NIFI-6502:
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Assignee: Alessandro D'Armiento
> Add padLeft() and padRight() functions to RecordPath
> -----------------------------------------------------
>
> Key: NIFI-6502
> URL: https://issues.apache.org/jira/browse/NIFI-6502
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Core Framework
> Affects Versions: 1.9.2
> Reporter: Alessandro D'Armiento
> Assignee: Alessandro D'Armiento
> Priority: Minor
> Time Spent: 40m
> Remaining Estimate: 0h
>
> h2. Current Situation
> - [Record path
> functions|https://nifi.apache.org/docs/nifi-docs/html/record-path-guide.html#functions]
> don't provide anything to perform string padding
> h1. Improvement Proposal
> - Support two new recordPath functions
> -- padLeft:
> --- padLeft(string field, int desiredLength) will prepend a default character
> to the input string until it reaches the length desiredLength
> --- padLeft(String field, int desiredLength, char c) will prepend the c
> characters to the input string until it reaches the length n
> -- padRight:
> --- padRight(string field, int desiredLength) will append a default character
> to the input string until it reaches the length desiredLength
> --- padRight(String field, int desiredLength, char c) will append the c
> characters to the input string until it reaches the length n
> -- Default character should be a renderable character such as underscore
> -- If the input string is already longer than the padding length, no
> operation should be performed
> h3. Examples
> ----
> {
> "name" : "john smith"
> }
> ----
> `padLeft(/name, 15, '@')` => @@@@@john smith
> `padLeft(/name, 15)` => _____john smith
> `padRight(/name, 15, '@')` => john smith@@@@@
> `padRight(/name, 15)`=> john smith_____
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