org.cloudbus.cloudsim.network.datacenter

Class NetworkDatacenter

java.lang.Object

org.cloudbus.cloudsim.core.SimEntity

org.cloudbus.cloudsim.Datacenter

org.cloudbus.cloudsim.network.datacenter.NetworkDatacenter

All Implemented Interfaces:

Cloneable

public class NetworkDatacenter
extends Datacenter

NetworkDatacenter class is a Datacenter whose hostList are virtualized and networked. It contains all the information about internal network. For example, which VM is connected to Switch etc. It deals with processing of VM queries (i.e., handling of VMs) instead of processing Cloudlet-related queries. So, even though an AllocPolicy will be instantiated (in the init() method of the superclass, it will not be used, as processing of cloudlets are handled by the CloudletScheduler and processing of VirtualMachines are handled by the VmAllocationPolicy. Please refer to following publication for more details: Saurabh Kumar Garg and Rajkumar Buyya, NetworkCloudSim: Modelling Parallel Applications in Cloud Simulations, Proceedings of the 4th IEEE/ACM International Conference on Utility and Cloud Computing (UCC 2011, IEEE CS Press, USA), Melbourne, Australia, December 5-7, 2011.

Since:

CloudSim Toolkit 3.0

Author:

Saurabh Kumar Garg

Field Summary

Fields

Modifier and Type	Field and Description
Map<Integer,Integer>	HostToSwitchid
Map<Integer,Switch>	Switchlist
Map<Integer,Integer>	VmtoHostlist
Map<Integer,Integer>	VmToSwitchid

Fields inherited from class org.cloudbus.cloudsim.core.SimEntity

FINISHED, HOLDING, RUNNABLE, WAITING

Constructor Summary

Constructors

Constructor and Description
NetworkDatacenter(String name, DatacenterCharacteristics characteristics, VmAllocationPolicy vmAllocationPolicy, List<Storage> storageList, double schedulingInterval) Allocates a new NetworkDatacenter object.

Method Summary

Methods

Modifier and Type	Method and Description
Map<Integer,Switch>	getEdgeSwitch() Get list of all EdgeSwitches in the Datacenter network One can design similar functions for other type of switches.
protected void	processCloudletSubmit(SimEvent ev, boolean ack) Processes a Cloudlet submission.
boolean	processVmCreateNetwork(Vm vm) Create the VM within the NetworkDatacenter.

Methods inherited from class org.cloudbus.cloudsim.Datacenter

addFile, checkCloudletCompletion, contains, contains, getCharacteristics, getDebts, getHostList, getLastProcessTime, getRegionalCisName, getSchedulingInterval, getStorageList, getVmAllocationPolicy, getVmList, predictFileTransferTime, printDebts, processCloudlet, processCloudletCancel, processCloudletMove, processCloudletPause, processCloudletResume, processCloudletStatus, processDataAdd, processDataDelete, processEvent, processOtherEvent, processPingRequest, processVmCreate, processVmDestroy, processVmMigrate, registerOtherEntity, setCharacteristics, setDebts, setLastProcessTime, setRegionalCisName, setSchedulingInterval, setStorageList, setVmAllocationPolicy, setVmList, shutdownEntity, startEntity, updateCloudletProcessing

Methods inherited from class org.cloudbus.cloudsim.core.SimEntity

cancelEvent, clone, getEventBuffer, getId, getName, getNextEvent, getNextEvent, getState, numEventsWaiting, numEventsWaiting, pause, run, schedule, schedule, schedule, schedule, scheduleFirst, scheduleFirst, scheduleFirst, scheduleFirst, scheduleFirstNow, scheduleFirstNow, scheduleFirstNow, scheduleFirstNow, scheduleNow, scheduleNow, scheduleNow, scheduleNow, selectEvent, send, send, send, send, sendNow, sendNow, sendNow, sendNow, setEventBuffer, setId, setState, waitForEvent

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VmToSwitchid

public Map<Integer,Integer> VmToSwitchid

HostToSwitchid

public Map<Integer,Integer> HostToSwitchid

Switchlist

public Map<Integer,Switch> Switchlist

VmtoHostlist

public Map<Integer,Integer> VmtoHostlist

Constructor Detail

NetworkDatacenter

public NetworkDatacenter(String name,
                 DatacenterCharacteristics characteristics,
                 VmAllocationPolicy vmAllocationPolicy,
                 List<Storage> storageList,
                 double schedulingInterval)
                  throws Exception

Allocates a new NetworkDatacenter object.

Parameters:

name - the name to be associated with this entity (as required by Sim_entity class from simjava package)

characteristics - an object of DatacenterCharacteristics

storageList - a LinkedList of storage elements, for data simulation

vmAllocationPolicy - the vmAllocationPolicy

Throws:

Exception - This happens when one of the following scenarios occur:

• creating this entity before initializing CloudSim package
• this entity name is null or empty
• this entity has zero number of PEs (Processing Elements).
  No PEs mean the Cloudlets can't be processed. A CloudResource must contain one or more Machines. A Machine must contain one or more PEs.

Method Detail

getEdgeSwitch

public Map<Integer,Switch> getEdgeSwitch()

Get list of all EdgeSwitches in the Datacenter network One can design similar functions for other type of switches.

processVmCreateNetwork

public boolean processVmCreateNetwork(Vm vm)

Create the VM within the NetworkDatacenter. It can be directly accessed by Datacenter Broker which manage allocation of Cloudlets.

processCloudletSubmit

protected void processCloudletSubmit(SimEvent ev,
                         boolean ack)

Processes a Cloudlet submission.

Overrides:

processCloudletSubmit in class Datacenter

Parameters:

ev - a SimEvent object

ack - an acknowledgement