/**
* 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;
}
/**
* Sets up all the network links to be simulated,
*
* @param datacenters the datacenters being simulated.
* @param brokers the brokers being simulated.
* @since 1.0
*/
static void setUpNetworkLinks(
HashMap<String, PowerDatacenter> datacenters, HashMap<String, DatacenterBroker> brokers) {
NetworkMapEntryDAO neDAO = new NetworkMapEntryDAO();
/*
* Establish all links whose source is a datacenter
*/
DatacenterRegistryDAO drDAO = new DatacenterRegistryDAO();
String[] datacenterNames = drDAO.getAllDatacentersNames();
for (String source : datacenterNames) {
PowerDatacenter src = datacenters.get(source);
List<NetworkMapEntry> destinationList = neDAO.getListOfDestinations(source);
for (NetworkMapEntry entry : destinationList) {
String destinationName = entry.getDestination();
if (drDAO.getDatacenterRegistry(destinationName) != null) { // destination is a datacenter
PowerDatacenter dest = datacenters.get(destinationName);
NetworkTopology.addLink(
src.getId(), dest.getId(), entry.getBandwidth(), entry.getLatency());
} else { // destination is a customer
DatacenterBroker dest = brokers.get(destinationName);
NetworkTopology.addLink(
src.getId(), dest.getId(), entry.getBandwidth(), entry.getLatency());
}
}
}
/*
* Establish all links whose source is a customer
*/
CustomerRegistryDAO crDAO = new CustomerRegistryDAO();
String[] customerNames = crDAO.getCustomersNames();
for (String source : customerNames) {
DatacenterBroker src = brokers.get(source);
List<NetworkMapEntry> destinationList = neDAO.getListOfDestinations(source);
for (NetworkMapEntry entry : destinationList) {
String destinationName = entry.getDestination();
if (drDAO.getDatacenterRegistry(destinationName) != null) { // destination is a datacenter
PowerDatacenter dest = datacenters.get(destinationName);
NetworkTopology.addLink(
src.getId(), dest.getId(), entry.getBandwidth(), entry.getLatency());
} else { // destination is a customer
DatacenterBroker dest = brokers.get(destinationName);
NetworkTopology.addLink(
src.getId(), dest.getId(), entry.getBandwidth(), entry.getLatency());
}
}
}
}