Package org.cloudbus.cloudsim.core

Class CloudInformationService

java.lang.Object

org.cloudbus.cloudsim.core.CloudSimEntity

org.cloudbus.cloudsim.core.CloudInformationService

All Implemented Interfaces:

Cloneable, Comparable<SimEntity>, Runnable, Identifiable, Nameable, SimEntity

public class CloudInformationService
extends CloudSimEntity

A Cloud Information Service (CIS) is an entity that provides cloud resource registration, indexing and discovery services. The Cloud datacenters tell their readiness to process Cloudlets by registering themselves with this entity. Other entities such as the broker can contact this class for resource discovery service, which returns a list of registered resource.

In summary, it acts like a yellow page service. An instance of this class is automatically created by CloudSim upon initialisation of the simulation.

Since:

CloudSim Toolkit 1.0

Author:

Manzur Murshed, Rajkumar Buyya

Nested Class Summary

Nested classes/interfaces inherited from interface org.cloudbus.cloudsim.core.SimEntity

SimEntity.State

Field Summary

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

NULL

Method Summary

Modifier and Type	Method	Description
Set<Datacenter>	getDatacenterList()	Gets the list of all registered Datacenters.
void	processEvent(SimEvent evt)	Processes events or services that are available for the entity.
void	shutdown()	Shuts down the entity.
protected void	startInternal()	The method has no effect at the current class.

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

cancelEvent, clone, compareTo, equals, getId, getName, getNextEvent, getNextEvent, getShutdownTime, getSimulation, getStartTime, getState, hashCode, isAlive, isFinished, isStarted, pause, run, run, schedule, schedule, schedule, schedule, schedule, schedule, scheduleFirst, scheduleFirst, scheduleFirstNow, scheduleFirstNow, scheduleNow, scheduleNow, selectEvent, send, send, sendNow, sendNow, setEventBuffer, setId, setName, setSimulation, setState, start, waitForEvent

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

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

schedule

Method Details

startInternal

protected void startInternal()

The method has no effect at the current class.

Specified by:

startInternal in class CloudSimEntity

processEvent

public void processEvent(SimEvent evt)

Description copied from interface: SimEntity

Processes events or services that are available for the entity. This method is invoked by the CloudSim class whenever there is an event in the deferred queue, which needs to be processed by the entity.

Parameters:

evt - information about the event just happened

shutdown

public void shutdown()

Description copied from interface: SimEntity

Shuts down the entity. This method is invoked by the CloudSim before the simulation finishes. If you want to save data in log files this is the method in which the corresponding code would be placed.

Specified by:

shutdown in interface SimEntity

Overrides:

shutdown in class CloudSimEntity

getDatacenterList

public Set<Datacenter> getDatacenterList()

Gets the list of all registered Datacenters.

Returns: