/**
* 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;
}
