#!/bin/sh
# /etc/init.d/MeasuringAgent
# install with: update-rc.d MeasuringAgent defaults

### BEGIN INIT INFO
# Provides:          MeasuringAgent
# Required-Start:    $local_fs $network $time $syslog
# Required-Stop:     $local_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start MeasuringAgent daemon at boot time
# Description:       MeasuringAgent daemon
### END INIT INFO

calculate_xmx () {
  local totalram=$(cat /proc/meminfo | grep -i 'memtotal' | grep -o '[[:digit:]]*')
  local totalramMBs=`expr $totalram / 1024`
  # -Xmx computed to be approx. 20% of physical RAM
  local xmx=`printf %.0f "$(($totalramMBs * 20/100))"`
  # Smaller than 256?
  if [ "$xmx" -lt "256" ]; then xmx="256"; fi;
  # Larger than 8192?
  if [ "$xmx" -gt "8192" ]; then xmx="8192"; fi;
  echo $xmx"m"
}

case "$1" in
  start)
    if [ -f /home/dkfqs/agent/log/MeasuringAgent.log ]; then
       mv /home/dkfqs/agent/log/MeasuringAgent.log /home/dkfqs/agent/log/MeasuringAgent.log_$(date +"%Y_%m_%d_%H_%M")
    fi
    xmx=`calculate_xmx`
    sudo XMX=$xmx -H -u dkfqs bash -c 'CLASSPATH=/home/dkfqs/agent/bin/bcpkix-jdk15on-160.jar:/home/dkfqs/agent/bin/bcprov-jdk15on-160.jar:/home/dkfqs/agent/bin/bctls-jdk15on-160.jar:/home/dkfqs/agent/bin/DKFQSMeasuringAgent.jar;export CLASSPATH;nohup java -Xmx$XMX -DdkfqsMeasuringAgentProperties=/home/dkfqs/agent/config/measuringagent.properties -Dnashorn.args="--no-deprecation-warning" com.dkfqs.measuringagent.internal.StartDKFQSMeasuringAgent -autoAdjustMemory -osReservedMemory 1GB 1>/home/dkfqs/agent/log/MeasuringAgent.log 2>&1 &'
    ;;
  stop)
       PID=`ps -o pid,args -e | grep "StartDKFQSMeasuringAgent" | egrep -v grep | awk '{print $1}'`
       if [ ! -z "$PID" ] ; then
          echo "MeasuringAgent stopped with pid(s) : $PID"
          kill -9 ${PID} 1> /dev/null 2>&1
       fi
    ;;
  status)
       PID=`ps -o pid,args -e | grep "StartDKFQSMeasuringAgent" | egrep -v grep | awk '{print $1}'`
       if [ ! -z "$PID" ] ; then
          echo "MeasuringAgent running with pid(s) : $PID"
       else
          echo "No MeasuringAgent running"
       fi
    ;;
  *)
    echo "Usage: /etc/init.d/MeasuringAgent {start|stop|status}"
    exit 1
    ;;
esac

exit 0