Hello Zac, AppenderBase will not invoke the append() method less the appender has the started flag set to true. -- Ceki Gülcü Sponsoring SLF4J/logback/reload4j at https://github.com/sponsors/qos-ch On 7/25/2022 6:38 PM, Zac Harvey wrote:
Java 11 and logback-classic-1.2.11 here. I'm trying to write my own custom appender and am following this Baeldung article <https://www.baeldung.com/custom-logback-appender> to test it out.
My *src/main/java/myapp/logging/CatAppender* appender (on the runtime classpath):
public class CatAppender extends AppenderBase<ILoggingEvent> { @Override protected void append(ILoggingEvent eventObject) { System.out.println("meow"); } }
My *src/main/resources/logback.xml*:
<?xml version="1.0" encoding="UTF-8"?> <configuration debug="true">
<appender name="cat" class="myapp.logging.CatAppender"/>
<root level="info"> <appender-ref ref="cat" /> </root>
</configuration>
In my *build.gradle* I specify to use logback and Lombok:
plugins { id "io.freefair.lombok" version '6.4.0' }
dependencies { implementation ( 'ch.qos.logback:logback-classic:1.2.11' ,'org.projectlombok:lombok:1.18.16' ) }
And then in my Java code I use Lombok to inject an SLF4J logger like so:
@Slf4j public class SomethingDoer {
public void doSomething() { log.info <http://log.info>("this should invoke the CatAppender..."); }
}
But when *SomethingDoer#doSomething()* runs, I don't see a meow printed to my STDOUT console. Have I wired anything up incorrectly here?