PowerDatacenterBroker3VMs.java

/*
 * Title:        CloudSim Toolkit
 * Description:  CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
 * Licence:      GPL - http://www.gnu.org/copyleft/gpl.html
 *
 * Copyright (c) 2009-2012, The University of Melbourne, Australia
 */

package org.cloudsub.cloudsim.power_examples;

import org.cloudbus.cloudsim.DatacenterBroker;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.Vm;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.core.CloudSimTags;
import org.cloudbus.cloudsim.core.SimEvent;

/**
 * A power-aware {@link DatacenterBroker}.
 * 
 * <br/>If you are using any algorithms, policies or workload included in the power package please cite
 * the following paper:<br/>
 * 
 * <ul>
 * <li><a href="http://dx.doi.org/10.1002/cpe.1867">Anton Beloglazov, and Rajkumar Buyya, "Optimal Online Deterministic Algorithms and Adaptive
 * Heuristics for Energy and Performance Efficient Dynamic Consolidation of Virtual Machines in
 * Cloud Data Centers", Concurrency and Computation: Practice and Experience (CCPE), Volume 24,
 * Issue 13, Pages: 1397-1420, John Wiley & Sons, Ltd, New York, USA, 2012</a>
 * </ul>
 * 
 * @author Anton Beloglazov
 * @since CloudSim Toolkit 2.0
 */
public class PowerDatacenterBroker3VMs extends DatacenterBroker {

	/**
	 * Instantiates a new PowerDatacenterBroker.
	 * 
	 * @param name the name of the broker
	 * @throws Exception the exception
	 */
	public PowerDatacenterBroker3VMs(String name) throws Exception {
		super(name);
	}

	/**
	 * Create the submitted virtual machines in a datacenter.
	 *
	 * @param datacenterId Id of the chosen Datacenter
	 * @pre $none
	 * @post $none
	 * @see #submitVmList(java.util.List)
	 */
	@Override
	protected void createVmsInDatacenter(int datacenterId) {
		// send as much vms as possible for this datacenter before trying the next one
		int requestedVms = 0;
		String datacenterName = CloudSim.getEntityName(datacenterId);
		for (Vm vm : getVmList()) {
			if(requestedVms == 3)
				break;
			if (!getVmsToDatacentersMap().containsKey(vm.getId())) {
				Log.printLine(CloudSim.clock() + ": " + getName() + ": Trying to Create VM #" + vm.getId()
						+ " in " + datacenterName);
				sendNow(datacenterId, CloudSimTags.VM_CREATE_ACK, vm);
				requestedVms++;
			}
		}

		getDatacenterRequestedIdsList().add(datacenterId);

		setVmsRequested(requestedVms);
		setVmsAcks(0);
	}
}