/**
* 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;
}