/* Copyright (c) 2014-2018. The SimGrid Team. All rights reserved.          */

/* This program is free software; you can redistribute it and/or modify it
 * under the terms of the license (GNU LGPL) which comes with this package. */

package cloud.migration;

import org.simgrid.msg.Msg;
import org.simgrid.msg.VM;
import org.simgrid.msg.Host;
import org.simgrid.msg.HostFailureException;

public class XVM extends VM {
  private int dpIntensity;
  private int ramsize;
  private int currentLoad;

  private Daemon daemon;

  public XVM(Host host, String name, int ramsize, int migNetBW, int dpIntensity){
    super(host, name, ramsize, (int)(migNetBW*0.9), dpIntensity);
    this.currentLoad = 0;
    this.dpIntensity = dpIntensity ;
    this.ramsize= ramsize;
    this.daemon = new Daemon(this);
  }

  public void setLoad(int load){  
    if (load >0) {
      this.setBound(this.getSpeed()*load/100);
      daemon.resume();
    } else{
      daemon.suspend();
    }
    currentLoad = load ;
  }

  @Override
  public void start() {
    super.start();
    daemon.start();
    this.setLoad(0);
  }

  public Daemon getDaemon(){
    return this.daemon;
  }

  public int getLoad(){
    Msg.info("Remaining comp:" + this.daemon.getRemaining());
    return this.currentLoad;
  }

  @Override
  public void migrate(Host host) throws HostFailureException {
    Msg.info("Start migration of VM " + this.getName() + " to " + host.getName());
    Msg.info("    currentLoad:" + this.currentLoad + "/ramSize:" + this.ramsize + "/dpIntensity:" + this.dpIntensity 
        + "/remaining:" + String.format(java.util.Locale.US, "%.2E",this.daemon.getRemaining()));
    try{
      super.migrate(host);
    } catch (Exception e){
      Msg.info("Something wrong during the live migration of VM "+this.getName());
      throw new HostFailureException(); 
    }
    this.setLoad(this.currentLoad); //Fixed the fact that setBound is not propagated to the new node.
    Msg.info("End of migration of VM " + this.getName() + " to node " + host.getName());
  }
}
