MicroMeter LoggingMeterRegistry configuration in SpringBoot 3 application

Question

I am writing a SpringBoot 3 application which needs to report metrics inside log files too.

I registered an instance of io.micrometer.core.instrument.logging.LoggingMeterRegistry by:

@Bean
LoggingMeterRegistry loggingMeterRegistry() {
    return new LoggingMeterRegistry();
}

It works as expected, but:

1. I don't know how to provide configuration settings (like the step) by the application.yaml file.
2. I don't know how to register a custom instance of the class com.codahale.metrics.MetricFilter to filter the output.

Could somebody tell me how to achieve these goals?

Thank you so much in advance!

Edit: my issue seems similar to How to configure LoggingMeterRegistry step duration in Spring Boot 2.x? .

Answer 1

Here my very clean workaround for the first question "I don't know how to provide configuration settings (like the step) by the application.yaml file" (found after a lot of debugging of LoggingMeterRegistry).

Configuration class

@Bean
LoggingMeterRegistry loggingMeterRegistry(Environment environments) {
    LoggingRegistryConfig config =
        key -> {
            String property = null;

            switch (key) {
                case "logging.enabled":
                    property = "management.metrics.export.logging.enabled";
                    break;

                case "logging.step":
                    property = "management.metrics.export.logging.step";
                    break;

            }

            return
                  (null != property)
                ? environments.getProperty(property)
                : null;
        };

    return new LoggingMeterRegistry(config, Clock.SYSTEM);
}

application.yaml

management:
  metrics:
    export:
      logging:
        step: 10s

Now, I am going to find a solution for the second issue...