Kotlin logger template

logger.properties

# Global logger
handlers=java.util.logging.FileHandler,java.util.logging.ConsoleHandler
.level=ALL

# File handler
java.util.logging.FileHandler.level=ALL
java.util.logging.FileHandler.formatter=java.util.logging.SimpleFormatter
java.util.logging.FileHandler.limit=1000000
java.util.logging.FileHandler.count=10
java.util.logging.FileHandler.pattern=log.%u.%g.txt

# Console handler
java.util.logging.ConsoleHandler.level=ALL
java.util.logging.ConsoleHandler.pattern=log.log
java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter

LoggerLoaders.kt

/**
 * Need "LOGGER_CONFIG_PATH" environment variable which set the place where was put .properties file with config of logger
 */
fun loadLoggerConfig() {
    FileInputStream(System.getenv("LOGGER_CONFIG_PATH")).use {
        LogManager.getLogManager().readConfiguration(it)
    }
}

/**
 * Need file with logger config
 */
fun loadLoggerConfig(file: FileInputStream) {
    LogManager.getLogManager().readConfiguration(file)
}