com.redislabs.provider.redis.util.Logging.scala Maven / Gradle / Ivy

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A Spark library for Redis

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package com.redislabs.provider.redis.util

import org.slf4j.{Logger, LoggerFactory}

/**
  * @author The Viet Nguyen
  */
trait Logging {

  /**
    * This logger will likely to be used in serializable environment like Spark contexts. So, we make
    * it transient to avoid unnecessary serialization errors.
    */
  @transient private var _logger: Logger = _

  protected def loggerName: String =
    this.getClass.getName.stripSuffix("$")

  protected def logger: Logger = {
    if (_logger == null) {
      _logger = LoggerFactory.getLogger(loggerName)
    }
    _logger
  }

  def logInfo(msg: => String): Unit = {
    if (logger.isInfoEnabled) {
      _logger.info(msg)
    }
  }

  def logDebug(msg: => String): Unit = {
    if (logger.isDebugEnabled) {
      _logger.debug(msg)
    }
  }

  def logTrace(msg: => String): Unit = {
    if (logger.isTraceEnabled) {
      _logger.trace(msg)
    }
  }
}