Kotlin Programming Cookbook

How to do it...

Let's go through the given steps to create an idiomatic logger in Kotlin:

1. First, let's see how it was done in Java. In Java, SLF4J is used and considered de-facto, so much that logging seems like a solved problem in Java language. Here's what a Java implementation would look like:

private static final Logger logger = LoggerFactory.getLogger(CurrentClass.class);…logger.info(“Hi, {}”, name);

2. It also works fine with Kotlin, obviously with minor modifications:

val logger = LoggerFactory.getLogger(CurrentClass::class)…logger.info(“Hi, {}”, name)

However, apart from this, we can utilize the power of Kotlin using Delegates for the logger. In this case, we will be creating the logger using the lazy keyword. This way, we will create ...