Groovy script that reports Apache Sling average request duration

Sling-AverageRequestDurationMilliseconds.groovy

// Author : Jayan Kandathil
// Last Updated : June 18, 2014
// Version : 0.1

// Need following JVM init arguments for JMX access (Windows .bat example)
// set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dcom.sun.management.jmxremote
// set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dcom.sun.management.jmxremote.port=10000
// set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dcom.sun.management.jmxremote.authenticate=false
// set CQ_JVM_OPTS=%CQ_JVM_OPTS% -Dcom.sun.management.jmxremote.ssl=false

import java.lang.management.*
import javax.management.ObjectName
import javax.management.remote.JMXConnectorFactory as JmxFactory
import javax.management.remote.JMXServiceURL as JmxUrl
 
def serverUrl = 'service:jmx:rmi:///jndi/rmi://localhost:10000/jmxrmi'
String beanName = "org.apache.sling:type=engine,service=RequestProcessor"

try
{
  def server = JmxFactory.connect(new JmxUrl(serverUrl)).MBeanServerConnection
  def gmxb = new GroovyMBean(server, beanName)
  double x = gmxb.getProperty("MeanRequestDurationMsec")
  println x.round(2)
}
catch(java.io.IOException e)
{
  println "Unable to connect to JVM"
  System.exit(0)
}
catch(javax.management.InstanceNotFoundException e)
{
  println 0
}
catch(groovy.lang.MissingPropertyException e)
{
  println "Unable to find " + prop
}