I want to use SLF4J-ext EventData and EventLogger to log important events in my business-logic:
public void onMessage(Message message) {
EventData messageEvent = new EventData();
messageEvent.setMessage("Message arrived");
messageEvent.put("messageID", message.getJMSMessageID());
EventLogger.logEvent(messageEvent);
}
I also want to use log4j2 as a backend. Currently, this leads to the following artifacts being part of my deployment: slf4j-api-1.7.12, slf4j-ext-1.7.12, log4j-api-2.3, log4j-core-2.3, log4j-slf4j-impl-2.3, log4j-web-2.3 - as well as their dependencies, of course.
My log4j2-configuration is intended to produce a formatted entry in regular files:
[...]
<Appenders>
<RollingFile name="traceFileAppender"
fileName="${logBase}/trace.log"
filePattern="${logBase}/trace.log.%d{yyyy-MM-dd}">
<TimeBasedTriggeringPolicy interval="1" modulate="true" />
<DefaultRolloverStrategy max="7"/>
<PatternLayout pattern="%date{ISO8601}[%thread] %level %marker %logger%nThread-Stack: %x%nThread-Map: %X%nMessage-Map: %K%nMessage: %m%n%rEx-- %n%n" />
<ThresholdFilter level="TRACE" onMatch="ACCEPT" onMismatch="DENY" />
</RollingFile>
[...]
</Appenders>
<Loggers>
[...]
<Logger name="EventLogger" level="INFO" additivity="true" />
[...]
<Root level="TRACE">
<AppenderRef ref="traceFileAppender" />
[...]
</Root>
</Loggers>
[...]
However, my log-statements look like this:
2015-07-31T08:13:55,589[MessageListenerThreadPool : 0] INFO EVENT EventLogger
Thread-Stack: []
Thread-Map: {}
Message-Map: {messageID=ID:c3e2d840d4d8d4f14040404040404040cf522d11eb57d22b}
Message:
--
What am I missing?