Create an MBean (JMX) in Scala

Create the MBean like this

trait OrderTrackerMBean {
  def getOrderId : Int
  def setOrderId(orderId:Int)
}

class OrderTracker extends OrderTrackerMBean {
  var orderId = 0
  override def getOrderId: Int = orderId
  override def setOrderId(_orderId: Int)= {
    orderId = _orderId
  }

}

trait OrderTrackerMBean {

def getOrderId : Int

def setOrderId(orderId:Int)

}

class OrderTracker extends OrderTrackerMBean {

var orderId = 0

override def getOrderId: Int = orderId

override def setOrderId(_orderId: Int)= {

orderId = _orderId

}

NOTE, that the interface/trait must end with MBean in the name

And this is how you register your MBean

package com.tsoft.playingWithLogback

import java.lang.management.ManagementFactory
import javax.management.{ObjectName, MBeanServer}

import org.slf4j.{MarkerFactory, Marker, LoggerFactory}
import org.slf4j.MDC
import scala.concurrent.{Await, Future}
import scala.concurrent.duration._
import scala.concurrent.ExecutionContext.Implicits.global

object LotsOfLogOutput {

  val logger = LoggerFactory.getLogger(this.getClass)

  val orderTrackerBean = new OrderTracker
  val mbs:MBeanServer = ManagementFactory.getPlatformMBeanServer();
  val mBeanName:ObjectName = new ObjectName("com.tsoft.playingWithLogback:type=Tracking");
  mbs.registerMBean( orderTrackerBean, mBeanName);

...

package com.tsoft.playingWithLogback

import java.lang.management.ManagementFactory

import javax.management.{ObjectName, MBeanServer}

import org.slf4j.{MarkerFactory, Marker, LoggerFactory}

import org.slf4j.MDC

import scala.concurrent.{Await, Future}

import scala.concurrent.duration._

import scala.concurrent.ExecutionContext.Implicits.global

object LotsOfLogOutput {

val logger = LoggerFactory.getLogger(this.getClass)

val orderTrackerBean = new OrderTracker

val mbs:MBeanServer = ManagementFactory.getPlatformMBeanServer();

val mBeanName:ObjectName = new ObjectName("com.tsoft.playingWithLogback:type=Tracking");

mbs.registerMBean( orderTrackerBean, mBeanName);

...

And the simply launch Java Mission Control (imc), attach to the JVM, and modify your MBean attributes as you like.

Enjoy!

tsoft.se

Tobias – With a Passion For Software Development

Create an MBean (JMX) in Scala

2 thoughts on “Create an MBean (JMX) in Scala”

Leave a Reply Cancel reply