Works on my machine: https://github.com/yihtserns/test-logback-appender-custom When running the Main class in IDE: ```17:06:45: Executing task ':Main.main()'...
Task :generateEffectiveLombokConfig Task :compileJava Task :processResources Task :classes
Task :Main.main() 17:06:48,383 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml] 17:06:48,384 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [file:/C:/workspace/projects/test-logback-appender-custom/build/resources/main/logback.xml] 17:06:48,464 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [com.github.yihtserns.test.logback.appender.custom.CatAppender] 17:06:48,466 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [cat] 17:06:48,466 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to INFO 17:06:48,466 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [cat] to Logger[ROOT] 17:06:48,467 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration. 17:06:48,468 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@61e4705b - Registering current configuration as safe fallback point Meow: Hello```
On Tuesday, 26 July 2022 at 02:27:51 GMT+8, Zac Harvey <bitbythecron@gmail.com> wrote: Thank you Ceki! I called start() in the CatAppender constructor and everything is now working. Are there recommended practices as to when (and from where) to call start() and stop()? Thanks again so much! Best,Zac On Mon, Jul 25, 2022 at 2:14 PM Ceki Gülcü <ceki@qos.ch> wrote: 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?
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