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//
// ============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)
//
== Configuring loggers for Policy Logic
The logging for the logic inside a policy (task logic, task selection logic, state finalizer logic) can be configured separate from standard logging.
The logger for policy logic is `org.onap.policy.apex.executionlogging`.
The following example defines
- a new appender for policy logic logging to standard out using a very simple pattern (simply the actual message)
- a logger for policy logic to standard out using the new appender
- a logger for policy logic to the standard `FILE` appender
[source%nowrap,xml]
----
<appender name="POLICY_APPENDER_STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>policy: %msg\n</pattern>
</encoder>
</appender>
<appender name="POLICY_APPENDER_STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>policy: %msg\n</pattern>
</encoder>
</appender>
<logger name="org.onap.policy.apex.executionlogging" level="info" additivity="false">
<appender-ref ref="POLICY_APPENDER_STDOUT" />
<appender-ref ref="FILE" />
</logger>
----
It is also possible to use specific logging for parts of policy logic.
The following example defines a logger for task logic.
[source%nowrap,xml]
----
<logger name="org.onap.policy.apex.executionlogging.TaskExecutionLogging" level="TRACE" additivity="false">
<appender-ref ref="STDOUT" />
</logger>
----
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