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From Mikael Ståldal (JIRA) <j...@apache.org>
Subject [jira] [Commented] (LOG4J2-1010) Possibility to set ThreadContext values in calls to Logger method
Date Thu, 11 Jun 2015 07:57:00 GMT

    [ https://issues.apache.org/jira/browse/LOG4J2-1010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14581618#comment-14581618
] 

Mikael Ståldal commented on LOG4J2-1010:
----------------------------------------

I am developing a Scala wrapper around Log4j 2 (similar to [Typesafe's Scala-logging|https://github.com/typesafehub/scala-logging/]
but using Log4j 2 directly), which handles context in a different way than ThreadContext.
It uses the methods in ExtendedLogger to do the actual logging.

Currently I have to use a workaround like this:
{code}
try {
  ThreadContext.put(key1, value1);
  ThreadContext.put(key2, value2);
  delegateLogger.logIfEnabled(FQCN, level, marker, message, cause);
} finally {
  ThreadContext.remove(key1);
  ThreadContext.remove(key2);
}
{code}

I would like to be able to do this instead:

{code}
  delegateLogger.logIfEnabled(FQCN, level, marker, message, cause, contextMap);
{code}

How am I supposed to pass in the context map in the Message object?


> Possibility to set ThreadContext values in calls to Logger method
> -----------------------------------------------------------------
>
>                 Key: LOG4J2-1010
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1010
>             Project: Log4j 2
>          Issue Type: Improvement
>          Components: API
>    Affects Versions: 2.2
>            Reporter: Mikael Ståldal
>
> It would be useful to have some logging methods in the Logger interface to set ThreadContext
values for a single log message only.
> In an asynchronous environment, using ThreadContext as currently defined is not so useful
since JVM threads might not be coupled to the logical flow of the application.



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