Play framework logging setup, for getting proper class names into log files.

application-logger.xml

<configuration>
  <conversionRule conversionWord="coloredLevel" converterClass="play.api.Logger$ColoredLevel" />

  <appender name="FILE" class="ch.qos.logback.core.FileAppender">
    <file>${application.home}/logs/application.log</file>
    <encoder>
      <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} - %message%n%xException</pattern>
    </encoder>
  </appender>

  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%coloredLevel %logger{15} - %message%n%xException{5}</pattern>
    </encoder>
  </appender>

  <logger name="play" level="INFO" />
  <logger name="application" level="INFO" />
  <logger name="controllers" level="INFO" />
  <logger name="com.example.myapp" level="INFO" />

  <root level="ERROR">
    <appender-ref ref="STDOUT" />
    <appender-ref ref="FILE" />
  </root>

</configuration>

Application.scala

package controllers

import play.api._
import play.api.mvc._

object Application extends Controller with LoggerSupport {
  def index = Action { implicit req =>
    logger.info(s"Serving index to ${req.remoteAddress}")
    Ok(views.html.index())
  }
}

LoggerSupport.scala

package controllers

trait LoggerSupport { self =>
  implicit lazy val logger =
    play.api.Logger(self.getClass.getName.replaceAll("\\$$", ""))
}