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javamavenmaven-3maven-plugin

How to inject the Log dependency to a non Mojo class instance?

Is there a way to inject Log dependency to a non-Mojo class instance? In Mojo classes, we simply call getLog() whenever we want to log something, but what happens in the case of a service class?

Something like this one below does not work.

@Singleton
public class AServiceClass implements ServiceInterface {

    @Inject
    private Log log;
    ...
}

A simple way of solving this is to pass the log object from the Mojo class to the service method whenever we call it, but I don't want to do that.

Solution

  • So, thanks to maven-checkstyle-plugin, I was able to find the solution.

    You need to extend AbstractLogEnabled when you want to access the logger.

    @Singleton
public class AServiceClass extends AbstractLogEnabled implements ServiceInterface {

    public void method(){
        // getLogger() gives you access to the logger
        getLogger().info(...)
    }
}