[logback-user] Custom appender is being ignored

[YihTsern]

 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 at 61e4705b - Registering current configuration as safe fallback point
Meow: Hello```


    On Tuesday, 26 July 2022 at 02:27:51 GMT+8, Zac Harvey <bitbythecron at 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 at 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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