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CloudSim Plus: A modern, highly extensible and easier-to-use Java 8 Framework for Modeling and Simulation of Cloud Computing Infrastructures and Services
/*
* CloudSim Plus: A modern, highly-extensible and easier-to-use Framework for
* Modeling and Simulation of Cloud Computing Infrastructures and Services.
* http://cloudsimplus.org
*
* Copyright (C) 2015-2021 Universidade da Beira Interior (UBI, Portugal) and
* the Instituto Federal de Educação Ciência e Tecnologia do Tocantins (IFTO, Brazil).
*
* This file is part of CloudSim Plus.
*
* CloudSim Plus is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* CloudSim Plus is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CloudSim Plus. If not, see .
*/
package org.cloudbus.cloudsim.cloudlets;
import org.cloudbus.cloudsim.brokers.DatacenterBroker;
import org.cloudbus.cloudsim.core.CustomerEntity;
import org.cloudbus.cloudsim.core.Simulation;
import org.cloudbus.cloudsim.datacenters.Datacenter;
import org.cloudbus.cloudsim.resources.ResourceManageable;
import org.cloudbus.cloudsim.utilizationmodels.UtilizationModel;
import org.cloudbus.cloudsim.vms.Vm;
import org.cloudsimplus.listeners.CloudletVmEventInfo;
import org.cloudsimplus.listeners.EventListener;
import java.util.Collections;
import java.util.List;
/**
* A class that implements the Null Object Design Pattern for {@link Cloudlet}
* class.
*
* @author Manoel Campos da Silva Filho
* @see Cloudlet#NULL
*/
final class CloudletNull implements Cloudlet {
@Override public void setId(long id) {/**/}
@Override public long getId() {
return -1;
}
@Override public String getUid() {
return "";
}
@Override public boolean addRequiredFile(String fileName) {
return false;
}
@Override public boolean addRequiredFiles(List fileNames) {
return false;
}
@Override public boolean deleteRequiredFile(String filename) {
return false;
}
@Override public double getAccumulatedBwCost() {
return 0.0;
}
@Override public double getActualCpuTime() {
return 0.0;
}
@Override public int getPriority() {
return 0;
}
@Override public long getFileSize() {
return 0L;
}
@Override public long getFinishedLengthSoFar() {
return 0L;
}
@Override public long getFinishedLengthSoFar(Datacenter datacenter) {
return 0L;
}
@Override public long getLength() {
return 0L;
}
@Override public long getOutputSize() {
return 0L;
}
@Override public long getTotalLength() {
return 0L;
}
@Override public double getCostPerBw() {
return 0.0;
}
@Override public double getCostPerSec() {
return 0.0;
}
@Override public double getCostPerSec(Datacenter datacenter) {
return 0.0;
}
@Override public double getExecStartTime() {
return 0.0;
}
@Override public double getFinishTime() {
return 0.0;
}
@Override public int getNetServiceLevel() {
return 0;
}
@Override public long getNumberOfPes() {
return 0;
}
@Override public double getTotalCost() {
return 0.0;
}
@Override public List getRequiredFiles() {
return Collections.emptyList();
}
@Override public Status getStatus() {
return Status.FAILED;
}
@Override public boolean isReturnedToBroker() { return false; }
@Override public double getLastDatacenterArrivalTime() {
return 0.0;
}
@Override public double getArrivalTime(Datacenter datacenter) {
return 0.0;
}
@Override public long getJobId() { return 0; }
@Override public void setJobId(long jobId) {/**/}
@Override public UtilizationModel getUtilizationModelBw() {
return UtilizationModel.NULL;
}
@Override public UtilizationModel getUtilizationModelCpu() {
return UtilizationModel.NULL;
}
@Override public UtilizationModel getUtilizationModelRam() {
return UtilizationModel.NULL;
}
@Override public UtilizationModel getUtilizationModel(Class extends ResourceManageable> resourceClass) { return UtilizationModel.NULL; }
@Override public double getUtilizationOfBw() {
return 0;
}
@Override public double getUtilizationOfBw(double time) {
return 0.0;
}
@Override public double getUtilizationOfCpu() {
return 0;
}
@Override public double getUtilizationOfCpu(double time) {
return 0.0;
}
@Override public double getUtilizationOfRam() {
return 0;
}
@Override public double getUtilizationOfRam(double time) {
return 0.0;
}
@Override public Vm getVm() {
return Vm.NULL;
}
@Override public double getWaitingTime() {
return 0.0;
}
@Override public boolean isFinished() {
return false;
}
@Override public boolean hasRequiresFiles() {
return false;
}
@Override public Cloudlet setPriority(int priority) { return this; }
@Override public Cloudlet setLength(long length) {
return Cloudlet.NULL;
}
@Override public Cloudlet setFileSize(long fileSize) {
return Cloudlet.NULL;
}
@Override public Cloudlet setOutputSize(long outputSize) {
return Cloudlet.NULL;
}
@Override public Cloudlet setSizes(long size) { return this; }
@Override public boolean setStatus(Status newStatus) {
return false;
}
@Override public void setNetServiceLevel(int netServiceLevel) {/**/}
@Override public Cloudlet setNumberOfPes(long numberOfPes) {
return Cloudlet.NULL;
}
@Override public void assignToDatacenter(Datacenter datacenter) {/**/}
@Override public void setBroker(DatacenterBroker broker) {/**/}
@Override public DatacenterBroker getBroker() {
return DatacenterBroker.NULL;
}
@Override public Cloudlet setUtilizationModel(UtilizationModel utilizationModel) {
return Cloudlet.NULL;
}
@Override public Cloudlet setUtilizationModelBw(UtilizationModel utilizationModelBw) {
return Cloudlet.NULL;
}
@Override public Cloudlet setUtilizationModelCpu(UtilizationModel utilizationModelCpu) {
return Cloudlet.NULL;
}
@Override public Cloudlet setUtilizationModelRam(UtilizationModel utilizationModelRam) {
return Cloudlet.NULL;
}
@Override public Cloudlet setVm(Vm vm) {
return Cloudlet.NULL;
}
@Override public boolean removeOnFinishListener(EventListener listener) { return false; }
@Override public Cloudlet addOnFinishListener(EventListener listener) { return Cloudlet.NULL; }
@Override public void notifyOnUpdateProcessingListeners(double time) {/**/}
@Override public Simulation getSimulation() {
return Simulation.NULL;
}
@Override public void setLastTriedDatacenter(Datacenter lastTriedDatacenter) {/**/}
@Override public Datacenter getLastTriedDatacenter() { return Datacenter.NULL; }
@Override public double getArrivedTime() { return 0; }
@Override public CustomerEntity setArrivedTime(double time) { return this; }
@Override public double getCreationTime() { return 0; }
@Override public double getWaitTime() { return 0; }
@Override public boolean removeOnUpdateProcessingListener(EventListener listener) { return false; }
@Override public Cloudlet addOnUpdateProcessingListener(EventListener listener) { return Cloudlet.NULL; }
@Override public double getSubmissionDelay() { return 0; }
@Override public boolean isDelayed() { return false; }
@Override public void setSubmissionDelay(double submissionDelay) {/**/}
@Override public boolean isBoundToVm() { return false; }
@Override public int compareTo(Cloudlet cloudlet) {
return 0;
}
@Override public String toString() {
return "Cloudlet.NULL";
}
@Override public boolean addFinishedLengthSoFar(long partialFinishedMI) {
return false;
}
@Override public boolean setWallClockTime(double wallTime, double actualCpuTime) {
return false;
}
@Override public void setExecStartTime(double clockTime) {/**/}
@Override public Cloudlet addOnStartListener(EventListener listener) { return this; }
@Override public boolean removeOnStartListener(EventListener listener) { return false; }
@Override public double registerArrivalInDatacenter() {
return -1;
}
@Override public Cloudlet reset() { return this; }
}