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Object ID Auto-Generation and Constructor Overloads #222

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04571ab
Added tests for the core package and fixed bugs found
Gurankio Nov 18, 2025
d2e7f0f
Add overloads with automatic id provisioning
Gurankio Nov 17, 2025
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31 changes: 8 additions & 23 deletions modules/cloudsim-examples/src/main/java/org/cloudbus/cloudsim/examples/CloudSimExample1.java
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Expand Up @@ -9,31 +9,18 @@
* Copyright (c) 2009, The University of Melbourne, Australia
*/

import org.cloudbus.cloudsim.*;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;

import org.cloudbus.cloudsim.Cloudlet;
import org.cloudbus.cloudsim.CloudletSchedulerTimeShared;
import org.cloudbus.cloudsim.Datacenter;
import org.cloudbus.cloudsim.DatacenterBroker;
import org.cloudbus.cloudsim.DatacenterCharacteristics;
import org.cloudbus.cloudsim.Host;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.Pe;
import org.cloudbus.cloudsim.Storage;
import org.cloudbus.cloudsim.UtilizationModel;
import org.cloudbus.cloudsim.UtilizationModelFull;
import org.cloudbus.cloudsim.Vm;
import org.cloudbus.cloudsim.VmAllocationPolicySimple;
import org.cloudbus.cloudsim.VmSchedulerTimeShared;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;

/**
* A simple example showing how to create a data center with one host and run one cloudlet on it.
*/
Expand Down Expand Up @@ -86,7 +73,7 @@ public static void main(String[] args) {
Datacenter datacenter0 = createDatacenter("Datacenter_0");

// Third step: Create Broker
broker = new DatacenterBroker("Broker");;
broker = new DatacenterBroker("Broker");
int brokerId = broker.getId();

// Fourth step: Create one virtual machine
Expand Down Expand Up @@ -169,18 +156,16 @@ private static Datacenter createDatacenter(String name) {
int mips = 1000;

// 3. Create PEs and add these into a list.
peList.add(new Pe(0, new PeProvisionerSimple(mips))); // need to store Pe id and MIPS Rating
peList.add(new Pe(new PeProvisionerSimple(mips))); // need to store Pe id and MIPS Rating

// 4. Create Host with its id and list of PEs and add them to the list
// of machines
int hostId = 0;
int ram = 2048; // host memory (MB)
long storage = 1000000; // host storage
int bw = 10000;

hostList.add(
new Host(
hostId,
new RamProvisionerSimple(ram),
new BwProvisionerSimple(bw),
storage,
Expand Down
47 changes: 13 additions & 34 deletions modules/cloudsim-examples/src/main/java/org/cloudbus/cloudsim/examples/CloudSimExample2.java
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Expand Up @@ -10,31 +10,18 @@
package org.cloudbus.cloudsim.examples;


import org.cloudbus.cloudsim.*;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;

import org.cloudbus.cloudsim.Cloudlet;
import org.cloudbus.cloudsim.CloudletSchedulerTimeShared;
import org.cloudbus.cloudsim.Datacenter;
import org.cloudbus.cloudsim.DatacenterBroker;
import org.cloudbus.cloudsim.DatacenterCharacteristics;
import org.cloudbus.cloudsim.Host;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.Pe;
import org.cloudbus.cloudsim.Storage;
import org.cloudbus.cloudsim.UtilizationModel;
import org.cloudbus.cloudsim.UtilizationModelFull;
import org.cloudbus.cloudsim.Vm;
import org.cloudbus.cloudsim.VmAllocationPolicySimple;
import org.cloudbus.cloudsim.VmSchedulerTimeShared;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;


/**
* A simple example showing how to create
Expand Down Expand Up @@ -75,14 +62,13 @@ public static void main(String[] args) {
Datacenter datacenter0 = createDatacenter("Datacenter_0");

//Third step: Create Broker
broker = new DatacenterBroker("Broker");;
int brokerId = broker.getId();
broker = new DatacenterBroker("Broker");
int brokerId = broker.getId();

//Fourth step: Create one virtual machine
vmlist = new ArrayList<>();

//VM description
int vmid = 0;
int mips = 250;
long size = 10000; //image size (MB)
int ram = 512; //vm memory (MB)
Expand All @@ -91,10 +77,8 @@ public static void main(String[] args) {
String vmm = "Xen"; //VMM name

//create two VMs
Vm vm1 = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());

vmid++;
Vm vm2 = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());
Vm vm1 = new Vm(brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());
Vm vm2 = new Vm(brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());

//add the VMs to the vmList
vmlist.add(vm1);
Expand All @@ -103,23 +87,20 @@ public static void main(String[] args) {
//submit vm list to the broker
broker.submitGuestList(vmlist);


//Fifth step: Create two Cloudlets
cloudletList = new ArrayList<>();

//Cloudlet properties
int id = 0;
pesNumber=1;
long length = 250000;
long fileSize = 300;
long outputSize = 300;
UtilizationModel utilizationModel = new UtilizationModelFull();

Cloudlet cloudlet1 = new Cloudlet(id, length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
Cloudlet cloudlet1 = new Cloudlet(length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
cloudlet1.setUserId(brokerId);

id++;
Cloudlet cloudlet2 = new Cloudlet(id, length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
Cloudlet cloudlet2 = new Cloudlet(length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
cloudlet2.setUserId(brokerId);

//add the cloudlets to the list
Expand Down Expand Up @@ -168,17 +149,15 @@ private static Datacenter createDatacenter(String name){
int mips = 1000;

// 3. Create PEs and add these into a list.
peList.add(new Pe(0, new PeProvisionerSimple(mips))); // need to store Pe id and MIPS Rating
peList.add(new Pe(new PeProvisionerSimple(mips))); // need to store Pe id and MIPS Rating

//4. Create Host with its id and list of PEs and add them to the list of machines
int hostId=0;
int ram = 2048; //host memory (MB)
long storage = 1000000; //host storage
int bw = 10000;

hostList.add(
new Host(
hostId,
new RamProvisionerSimple(ram),
new BwProvisionerSimple(bw),
storage,
Expand Down
45 changes: 11 additions & 34 deletions modules/cloudsim-examples/src/main/java/org/cloudbus/cloudsim/examples/CloudSimExample3.java
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Original file line number Diff line number Diff line change
Expand Up @@ -9,31 +9,18 @@

package org.cloudbus.cloudsim.examples;

import org.cloudbus.cloudsim.*;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;

import org.cloudbus.cloudsim.Cloudlet;
import org.cloudbus.cloudsim.CloudletSchedulerTimeShared;
import org.cloudbus.cloudsim.Datacenter;
import org.cloudbus.cloudsim.DatacenterBroker;
import org.cloudbus.cloudsim.DatacenterCharacteristics;
import org.cloudbus.cloudsim.Host;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.Pe;
import org.cloudbus.cloudsim.Storage;
import org.cloudbus.cloudsim.UtilizationModel;
import org.cloudbus.cloudsim.UtilizationModelFull;
import org.cloudbus.cloudsim.Vm;
import org.cloudbus.cloudsim.VmAllocationPolicySimple;
import org.cloudbus.cloudsim.VmSchedulerTimeShared;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;


/**
* A simple example showing how to create
Expand Down Expand Up @@ -82,7 +69,6 @@ public static void main(String[] args) {
vmlist = new ArrayList<>();

//VM description
int vmid = 0;
int mips = 250;
long size = 10000; //image size (MB)
int ram = 2048; //vm memory (MB)
Expand All @@ -91,11 +77,9 @@ public static void main(String[] args) {
String vmm = "Xen"; //VMM name

//create two VMs
Vm vm1 = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());

Vm vm1 = new Vm(brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());
//the second VM will have twice the priority of VM1 and so will receive twice CPU time
vmid++;
Vm vm2 = new Vm(vmid, brokerId, mips * 2, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());
Vm vm2 = new Vm(brokerId, mips * 2, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());

//add the VMs to the vmList
vmlist.add(vm1);
Expand All @@ -109,17 +93,15 @@ public static void main(String[] args) {
cloudletList = new ArrayList<>();

//Cloudlet properties
int id = 0;
long length = 40000;
long fileSize = 300;
long outputSize = 300;
UtilizationModel utilizationModel = new UtilizationModelFull();

Cloudlet cloudlet1 = new Cloudlet(id, length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
Cloudlet cloudlet1 = new Cloudlet(length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
cloudlet1.setUserId(brokerId);

id++;
Cloudlet cloudlet2 = new Cloudlet(id, length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
Cloudlet cloudlet2 = new Cloudlet(length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
cloudlet2.setUserId(brokerId);

//add the cloudlets to the list
Expand Down Expand Up @@ -171,14 +153,12 @@ private static Datacenter createDatacenter(String name){
peList.add(new Pe(0, new PeProvisionerSimple(mips))); // need to store Pe id and MIPS Rating

//4. Create Hosts with its id and list of PEs and add them to the list of machines
int hostId=0;
int ram = 2048; //host memory (MB)
long storage = 1000000; //host storage
int bw = 10000;

hostList.add(
new Host(
hostId,
new RamProvisionerSimple(ram),
new BwProvisionerSimple(bw),
storage,
Expand All @@ -190,13 +170,10 @@ private static Datacenter createDatacenter(String name){
//create another machine in the Data center
List<Pe> peList2 = new ArrayList<>();

peList2.add(new Pe(0, new PeProvisionerSimple(mips)));

hostId++;
peList2.add(new Pe(new PeProvisionerSimple(mips)));

hostList.add(
new Host(
hostId,
new RamProvisionerSimple(ram),
new BwProvisionerSimple(bw),
storage,
Expand Down
43 changes: 11 additions & 32 deletions modules/cloudsim-examples/src/main/java/org/cloudbus/cloudsim/examples/CloudSimExample4.java
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Original file line number Diff line number Diff line change
Expand Up @@ -9,31 +9,18 @@

package org.cloudbus.cloudsim.examples;

import org.cloudbus.cloudsim.*;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.LinkedList;
import java.util.List;

import org.cloudbus.cloudsim.Cloudlet;
import org.cloudbus.cloudsim.CloudletSchedulerTimeShared;
import org.cloudbus.cloudsim.Datacenter;
import org.cloudbus.cloudsim.DatacenterBroker;
import org.cloudbus.cloudsim.DatacenterCharacteristics;
import org.cloudbus.cloudsim.Host;
import org.cloudbus.cloudsim.Log;
import org.cloudbus.cloudsim.Pe;
import org.cloudbus.cloudsim.Storage;
import org.cloudbus.cloudsim.UtilizationModel;
import org.cloudbus.cloudsim.UtilizationModelFull;
import org.cloudbus.cloudsim.Vm;
import org.cloudbus.cloudsim.VmAllocationPolicySimple;
import org.cloudbus.cloudsim.VmSchedulerSpaceShared;
import org.cloudbus.cloudsim.core.CloudSim;
import org.cloudbus.cloudsim.provisioners.BwProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.PeProvisionerSimple;
import org.cloudbus.cloudsim.provisioners.RamProvisionerSimple;


/**
* A simple example showing how to create
Expand Down Expand Up @@ -79,7 +66,6 @@ public static void main(String[] args) {
vmlist = new ArrayList<>();

//VM description
int vmid = 0;
int mips = 250;
long size = 10000; //image size (MB)
int ram = 512; //vm memory (MB)
Expand All @@ -88,10 +74,8 @@ public static void main(String[] args) {
String vmm = "Xen"; //VMM name

//create two VMs
Vm vm1 = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());

vmid++;
Vm vm2 = new Vm(vmid, brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());
Vm vm1 = new Vm(brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());
Vm vm2 = new Vm(brokerId, mips, pesNumber, ram, bw, size, vmm, new CloudletSchedulerTimeShared());

//add the VMs to the vmList
vmlist.add(vm1);
Expand All @@ -105,17 +89,15 @@ public static void main(String[] args) {
cloudletList = new ArrayList<>();

//Cloudlet properties
int id = 0;
long length = 40000;
long fileSize = 300;
long outputSize = 300;
UtilizationModel utilizationModel = new UtilizationModelFull();

Cloudlet cloudlet1 = new Cloudlet(id, length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
Cloudlet cloudlet1 = new Cloudlet(length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
cloudlet1.setUserId(brokerId);

id++;
Cloudlet cloudlet2 = new Cloudlet(id, length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
Cloudlet cloudlet2 = new Cloudlet(length, pesNumber, fileSize, outputSize, utilizationModel, utilizationModel, utilizationModel);
cloudlet2.setUserId(brokerId);

//add the cloudlets to the list
Expand Down Expand Up @@ -164,20 +146,17 @@ private static Datacenter createDatacenter(String name){
int mips = 1000;

// 3. Create PEs and add these into a list.
peList.add(new Pe(0, new PeProvisionerSimple(mips))); // need to store Pe id and MIPS Rating
peList.add(new Pe(new PeProvisionerSimple(mips))); // need to store Pe id and MIPS Rating

//4. Create Host with its id and list of PEs and add them to the list of machines
int hostId=0;
int ram = 2048; //host memory (MB)
long storage = 1000000; //host storage
int bw = 10000;


//in this example, the VMAllocatonPolicy in use is SpaceShared. It means that only one VM
//is allowed to run on each Pe. As each Host has only one Pe, only one VM can run on each Host.
hostList.add(
new Host(
hostId,
new RamProvisionerSimple(ram),
new BwProvisionerSimple(bw),
storage,
Expand Down
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