//
// ============LICENSE_START=======================================================
//  Copyright (C) 2016-2018 Ericsson. All rights reserved.
// ================================================================================
// This file is licensed under the CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE
// Full license text at https://creativecommons.org/licenses/by/4.0/legalcode
// 
// SPDX-License-Identifier: CC-BY-4.0
// ============LICENSE_END=========================================================
//
// @author Sven van der Meer (sven.van.der.meer@ericsson.com)
//

== Logging External Components

Logback can also be configured to log any other, external components APEX is using, if they are using the common logging framework.

For instance, the context component of APEX is using __Infinispan__ and one can add a logger for this external component.
The following example adds a logger for __Infinispan__ using the standard output appender.

[source%nowrap,xml]
----
<logger name="org.infinispan" level="INFO" additivity="false">
  <appender-ref ref="STDOUT" />
</logger>
----

Another example is Apache Zookeeper.
The following example adds a logger for Zookeeper using the standard outout appender.

[source%nowrap,xml]
----
<logger name="org.apache.zookeeper.ClientCnxn" level="INFO" additivity="false">
  <appender-ref ref="STDOUT" />
</logger>
----