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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) 2015-2018 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.cloudsimplus.builders;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.function.Supplier;
import org.cloudbus.cloudsim.brokers.DatacenterBrokerSimple;
import org.cloudbus.cloudsim.vms.Vm;
import org.cloudbus.cloudsim.vms.VmSimple;
import org.cloudsimplus.listeners.VmHostEventInfo;
import org.cloudsimplus.listeners.VmDatacenterEventInfo;
import org.cloudsimplus.listeners.EventListener;
import org.cloudbus.cloudsim.schedulers.cloudlet.CloudletScheduler;
/**
* A Builder class to create {@link Vm} objects.
*
* @author Manoel Campos da Silva Filho
* @since CloudSim Plus 1.0
*/
public class VmBuilder {
private Supplier cloudletSchedulerSupplier;
private long size = 10000;
private long ram = 512;
private double mips = 1000;
private long bw = 1000;
private int pes = 1;
private int numberOfCreatedVms;
private final DatacenterBrokerSimple broker;
private EventListener onHostAllocationListener;
private EventListener onHostDeallocationListener;
private EventListener onVmCreationFailureListener;
private EventListener onUpdateVmProcessingListener;
public VmBuilder(final DatacenterBrokerSimple broker) {
Objects.requireNonNull(broker);
this.broker = broker;
this.numberOfCreatedVms = 0;
this.onHostAllocationListener = EventListener.NULL;
this.onHostDeallocationListener = EventListener.NULL;
this.onVmCreationFailureListener = EventListener.NULL;
this.onUpdateVmProcessingListener = EventListener.NULL;
this.cloudletSchedulerSupplier = () -> CloudletScheduler.NULL;
}
public VmBuilder setOnHostDeallocationListener(final EventListener onHostDeallocationListener) {
this.onHostDeallocationListener = onHostDeallocationListener;
return this;
}
public VmBuilder setMips(double defaultMIPS) {
this.mips = defaultMIPS;
return this;
}
public VmBuilder setBw(long defaultBW) {
this.bw = defaultBW;
return this;
}
public VmBuilder setRam(int defaultRAM) {
this.ram = defaultRAM;
return this;
}
public VmBuilder setOnHostAllocationListener(final EventListener onHostAllocationListener) {
this.onHostAllocationListener = onHostAllocationListener;
return this;
}
public VmBuilder setSize(long defaultSize) {
this.size = defaultSize;
return this;
}
public VmBuilder setOnVmCreationFilatureListenerForAllVms(final EventListener onVmCreationFailureListener) {
this.onVmCreationFailureListener = onVmCreationFailureListener;
return this;
}
public VmBuilder createAndSubmitOneVm() {
return createAndSubmitVms(1);
}
public VmBuilder createAndSubmitVms(final int amount) {
final List vms = new ArrayList<>();
for (int i = 0; i < amount; i++) {
final Vm vm = new VmSimple(numberOfCreatedVms++, mips, pes)
.setRam(ram).setBw(bw).setSize(size)
.setCloudletScheduler(cloudletSchedulerSupplier.get())
.setBroker(broker)
.addOnHostAllocationListener(onHostAllocationListener)
.addOnHostDeallocationListener(onHostDeallocationListener)
.addOnCreationFailureListener(onVmCreationFailureListener)
.addOnUpdateProcessingListener(onUpdateVmProcessingListener);
vms.add(vm);
}
broker.submitVmList(vms);
return this;
}
public long getBw() {
return bw;
}
public VmBuilder setPes(int defaultPEs) {
this.pes = defaultPEs;
return this;
}
public Vm getVmById(final int id) {
return broker.getVmWaitingList().stream()
.filter(vm -> vm.getId() == id)
.findFirst().orElse(Vm.NULL);
}
public long getSize() {
return size;
}
public List getVms() {
return broker.getVmWaitingList();
}
public long getRam() {
return ram;
}
public double getMips() {
return mips;
}
public int getPes() {
return pes;
}
/**
* Sets a {@link Supplier} that is accountable to create CloudletScheduler
* for requested VMs.
*
* @param cloudletSchedulerSupplier the CloudletScheduler Supplier to set
* @return
*/
public VmBuilder setCloudletSchedulerSupplier(Supplier cloudletSchedulerSupplier) {
this.cloudletSchedulerSupplier = cloudletSchedulerSupplier;
return this;
}
public EventListener getOnUpdateVmProcessingListener() {
return onUpdateVmProcessingListener;
}
public VmBuilder setOnUpdateVmProcessingListener(final EventListener onUpdateVmProcessing) {
Objects.requireNonNull(onUpdateVmProcessing);
this.onUpdateVmProcessingListener = onUpdateVmProcessing;
return this;
}
}