CODEWITHSUNDEEP
kotlinloggingslf4jkotlin-logging
HViktor
HViktor

Reputation: 51

Access underlying SLF4J Logger from oshai.kotlin-logging KLogger?

I'm migrating my Kotlin project to use oshai's kotlin-logging.

I am using a legacy library which has dependency on SLF4J Logger, but KLogger in oshai's kotlin-logging doesn't inherit it any more.

Slf4j dependency is not provided anymore (users have to provide it). It means that >= 5.x can work with both slf4j 1 or 2.

Here's the existing legacy class:

class MyLegacyClass(
    private val log: org.slf4j.Logger
)

My previous implementation looked like this:

import mu.KotlinLogging

class MyClass() : MyLegacyClass(log) {
    companion object {
        private val log = KotlinLogging.logger {}
    }
}

I need to migrate to oshai's kotlin-logging, which doesn't inherit org.slf4j.Logger any more.

Here is the new library:

import io.github.oshai.kotlinlogging.KotlinLogging

My Problem:

I need to access the SLF4J Logger from the KLogger instance to pass it to the MyLegacyClass. The previous method using mu.KotlinLogging allowed accessing the underlying SLF4J logger. How can I achieve this with oshai's kotlin-logging?

Alternatively, could I exclusively use SLF4J in my Kotlin class? What are the implications?

Attempted Solutions:

Tried accessing underlyingLogger property, but it doesn't exist in the new KLogger.

Explored the library documentation but couldn't find a direct method to unwrap the KLogger.

Useful links:

Upvotes: 5

Views: 243

Answers (0)

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