log4j2-propagation

Log4j 2 Thread Context propagation library

Adding the log4j2-propagation jar to your classpath is all that is needed to let the Thread Context from the Log4j 2 library be automatically included into the ContextSnapshot.

How to use this library

Add it to your classpath.

<dependency>
    <groupId>nl.talsmasoftware.context</groupId>
    <artifactId>log4j2-propagation</artifactId>
    <version>[see Maven badge above]</version>
</dependency>

Done!

Now the data of the Log4j 2 Thread Context is copied into each snapshot from the ContextManagers.createSnapshot() method to be reactivated by the Contextsnapshot.reactivate() call. The ContextAwareExecutorService automatically propagates the full Thread Context data into all executed tasks this way.

When Thread Context data is propagated, it is added on top of the existing data, if any: Thread Context stack values are pushed on top of the existing stack; map entries are added to the existing map, only replacing existing ones in case of a map key conflict.

Calling ContextManagers.clearActiveContexts() will clear the Thread Context data of the current thread.