[jira] [Resolved] (LOG4J2-2732) Add ThreadContext.putIfNull(String, String)

["Ralph Goers (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4J2-2732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralph Goers resolved LOG4J2-2732.
---------------------------------
    Resolution: Fixed

Patch was applied. Thanks for the contribution!

> Add ThreadContext.putIfNull(String, String)
> -------------------------------------------
>
>                 Key: LOG4J2-2732
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2732
>             Project: Log4j 2
>          Issue Type: New Feature
>          Components: API
>            Reporter: Matt Pavlovich
>            Priority: Major
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Provide a helper method that provides a 1-liner to put an identifier only if it is not currently set. This removes an if-check in all classes that share a design approach of assessing a uniqueId, such as request id, etc.
> {noformat}
> if(!ThreadContext.containsKey("uniqueId")) {
>    ThreadContext.put("uniqueId", generateUniqueId());
> }
> {noformat}
> Proposed:
> {noformat}
> ThreadContext.putIfNull("uniqueId", generateUniqueId());
> {noformat}



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