/**
* Creates instances of CloudSim's Cloudlet class from a customer's utilization profile.
*
* @param ugr the utilization profile.
* @param brokerId the id of the broker that owns the cloudlets.
* @param numOfVms the number of virtual machines.
* @return a list of Cloudlet instances.
* @since 1.0
*/
static List<Cloudlet> createCloudlets(UtilizationProfile ugr, int brokerId, long numOfVms)
throws IOException, ServiceDeniedException {
List<Cloudlet> list = new ArrayList<Cloudlet>();
for (int i = 0; i < numOfVms; i++) {
Optional<UtilizationModel> cpu =
UTILIZATION_MODEL.getExtensionInstanceByName(ugr.getUtilizationModelCpuAlias());
if (!cpu.isPresent()) {
Dialog.showErrorMessage(
null,
format(
"Error on loading the CPU utilization model [%s]",
ugr.getUtilizationModelCpuAlias()));
return null;
}
Optional<UtilizationModel> ram =
UTILIZATION_MODEL.getExtensionInstanceByName(ugr.getUtilizationModelRamAlias());
if (!ram.isPresent()) {
Dialog.showErrorMessage(
null,
format(
"Error on loading the RAM utilization model [%s]",
ugr.getUtilizationModelRamAlias()));
return null;
}
Optional<UtilizationModel> bw =
UTILIZATION_MODEL.getExtensionInstanceByName(ugr.getUtilizationModelBwAlias());
if (!bw.isPresent()) {
Dialog.showErrorMessage(
null,
format(
"Error on loading the bandwidth utilization model [%s]",
ugr.getUtilizationModelBwAlias()));
return null;
}
Cloudlet cloudlet =
new Cloudlet(
i,
(long) ((long) ugr.getLength() * RandomNumberGenerator.getRandomNumbers(1).get(0)),
ugr.getCloudletsPesNumber(),
ugr.getFileSize(),
ugr.getOutputSize(),
cpu.get(),
ram.get(),
bw.get());
cloudlet.setUserId(brokerId);
cloudlet.setVmId(i);
list.add(cloudlet);
}
return list;
}
/**
* Creates instances of CloudSim's VM class from a list of virtual machine registers.
*
* @param vmList a list of virtual machine registers.
* @param brokerId the id of the broker that owns the virtual machines.
* @return a list of VM instances.
* @since 1.0
*/
static List<Vm> createVms(List<VirtualMachineRegistry> vmList, int brokerId) {
List<Vm> list = new ArrayList<Vm>();
int vmId = 0;
for (VirtualMachineRegistry vmr : vmList) {
for (int n = 0; n < vmr.getAmount(); n++) {
Optional<CloudletScheduler> cs =
CLOUDLET_SCHEDULER.getExtensionInstanceByName(
vmr.getSchedulingPolicyAlias(), vmr.getMips(), vmr.getPesNumber());
if (!cs.isPresent()) {
Dialog.showErrorMessage(
null,
format(
"Error on loading the cloudlet scheduler [%s]", vmr.getSchedulingPolicyAlias()));
return null;
}
list.add(
new Vm(
vmId,
brokerId,
vmr.getMips(),
vmr.getPesNumber(),
vmr.getRam(),
vmr.getBw(),
vmr.getSize(),
vmr.getVmm(),
cs.get()));
vmId++;
}
}
return list;
}
/**
* Creates instances of CloudSim's PowerDatacenter class from a list of datacenter registries.
*
* @param dcrList a list of datacenter registries.
* @return a map containing names of datacenters as keys and PowerDatacenter instances as values.
* @since 1.0
*/
static HashMap<String, PowerDatacenter> createDatacenters() {
List<DatacenterRegistry> dcrList = DatacenterRegistryBusiness.getListOfDatacenters();
HashMap<String, PowerDatacenter> map = new HashMap<String, PowerDatacenter>();
for (DatacenterRegistry dcr : dcrList) {
List<PowerHost> hostList = createHosts(dcr.getHostList());
if (hostList == null) {
return null;
}
DatacenterCharacteristics chars =
new DatacenterCharacteristics(
dcr.getArchitecture(),
dcr.getOs(),
dcr.getVmm(),
hostList,
dcr.getTimeZone(),
dcr.getCostPerSec(),
dcr.getCostPerMem(),
dcr.getCostPerStorage(),
dcr.getCostPerBw());
LinkedList<Storage> storageList = createStorageList(dcr.getSanList());
try {
Optional<VmAllocationPolicy> allocationPolicy =
VM_ALLOCATION_POLICY.getExtensionInstanceByName(
dcr.getAllocationPolicyAlias(), hostList, dcr);
if (!allocationPolicy.isPresent()) {
Dialog.showErrorMessage(
null,
format(
"Error on loading the allocation policy [%s]", dcr.getAllocationPolicyAlias()));
return null;
}
PowerDatacenter newDC =
new PowerDatacenter(
dcr.getName(),
chars,
allocationPolicy.get(),
storageList,
dcr.getSchedulingInterval(),
dcr.getMonitoringInterval());
newDC.setDisableMigrations(!dcr.isVmMigration());
map.put(dcr.getName(), newDC);
} catch (Exception ex) {
LOG.error("Error on creating data centers. Error message: [{}]", ex.getMessage(), ex);
}
}
return map;
}
/**
* Creates instances of CloudSim's DatacenterBroker class from a list of customer registers.
*
* @param customerList a list of customer instances.
* @return a map containing names of customers as keys and DatacenterBroker instances as values.
* @since 1.0
*/
static HashMap<String, DatacenterBroker> createBrokers() {
List<CustomerRegistry> customerList = CustomerRegistryBusiness.getListOfCustomers();
HashMap<String, DatacenterBroker> map = new HashMap<String, DatacenterBroker>();
try {
for (CustomerRegistry cr : customerList) {
UtilizationProfile up = cr.getUtilizationProfile();
String name = cr.getName();
Optional<DatacenterBroker> broker =
DATACENTER_BROKER.getExtensionInstanceByName(up.getBrokerPolicyAlias(), name);
if (!broker.isPresent()) {
Dialog.showErrorMessage(
null, format("Error on loading datacenter broker [%s]", up.getBrokerPolicyAlias()));
return null;
}
int brokerId = broker.get().getId();
List<Vm> vmList = createVms(cr.getVmList(), brokerId);
if (vmList == null) {
return null;
}
broker.get().submitVmList(vmList);
List<Cloudlet> cloudletList =
createCloudlets(up, brokerId, new CustomerRegistryDAO().getNumOfVms(cr.getId()));
if (cloudletList == null) {
return null;
}
broker.get().submitCloudletList(cloudletList);
map.put(cr.getName(), broker.get());
}
} catch (IOException | ServiceDeniedException ex) {
LOG.error(ex.getMessage(), ex);
}
return map;
}
/**
* Creates instances of CloudSim's PowerPe class from a host registry.
*
* @param hr a host registry.
* @return a list of PowerPe instances.
* @since 1.0
*/
static List<Pe> createPes(HostRegistry hr) {
List<Pe> list = new ArrayList<Pe>();
for (int i = 0; i < hr.getNumOfPes(); i++) {
Optional<PeProvisioner> pp =
PE_PROVISIONER.getExtensionInstanceByName(hr.getPeProvisionerAlias(), hr.getMipsPerPe());
if (!pp.isPresent()) {
Dialog.showErrorMessage(
null,
format("Error on loading the PE provisioning policy [%s]", hr.getPeProvisionerAlias()));
return null;
}
list.add(new Pe(i, pp.get()));
}
return list;
}
/**
* Creates instances of CloudSim's PowerHost class from a list of host registers.
*
* @param hostList a list of datacenter registers
* @return a list of PowerHost instances.
* @since 1.0
*/
static List<PowerHost> createHosts(final List<HostRegistry> hostList) {
final List<PowerHost> list = new ArrayList<PowerHost>();
int i = 0;
for (HostRegistry hr : hostList) {
for (int n = 0; n < hr.getAmount(); n++) {
List<Pe> peList = createPes(hr);
if (peList == null) {
return null;
}
Optional<RamProvisioner> rp =
RAM_PROVISIONER.getExtensionInstanceByName(hr.getRamProvisionerAlias(), hr.getRam());
if (!rp.isPresent()) {
Dialog.showErrorMessage(
null,
format("Error on loading the RAM provisioner [%s]", hr.getRamProvisionerAlias()));
return null;
}
Optional<BwProvisioner> bp =
BW_PROVISIONER.getExtensionInstanceByName(
hr.getBwProvisionerAlias(), (long) hr.getBw());
if (!bp.isPresent()) {
Dialog.showErrorMessage(
null,
format(
"Error on loading the bandwidth provisioner [%s]", hr.getBwProvisionerAlias()));
return null;
}
Optional<VmScheduler> vs =
VM_SCHEDULER.getExtensionInstanceByName(hr.getSchedulingPolicyAlias(), peList);
if (!vs.isPresent()) {
Dialog.showErrorMessage(
null,
format(
"Error on loading the VM scheduling policy [%s]", hr.getSchedulingPolicyAlias()));
return null;
}
Optional<PowerModel> pm =
POWER_MODEL.getExtensionInstanceByName(
hr.getPowerModelAlias(), hr.getMaxPower(), hr.getStaticPowerPercent());
if (!pm.isPresent()) {
Dialog.showErrorMessage(
null, format("Error on loading the power model [%s]", hr.getPowerModelAlias()));
return null;
}
list.add(new PowerHost(i, rp.get(), bp.get(), hr.getStorage(), peList, vs.get(), pm.get()));
i++;
}
}
return list;
}