public static UnitConfig computeNewRootLocation(
final UnitConfig currentLocationConfig,
ProtoBufMessageMap<String, UnitConfig, UnitConfig.Builder> entryMap)
throws CouldNotPerformException {
try {
HashMap<String, UnitConfig> rootLocationConfigList = new HashMap<>();
for (UnitConfig locationConfig : entryMap.getMessages()) {
rootLocationConfigList.put(locationConfig.getId(), locationConfig);
}
rootLocationConfigList.put(currentLocationConfig.getId(), currentLocationConfig);
if (rootLocationConfigList.size() == 1) {
return rootLocationConfigList.values().stream().findFirst().get();
}
for (UnitConfig locationConfig : new ArrayList<>(rootLocationConfigList.values())) {
if (!locationConfig.hasPlacementConfig()) {
} else if (!locationConfig.getPlacementConfig().hasLocationId()) {
} else if (locationConfig.getPlacementConfig().getLocationId().isEmpty()) {
} else if (locationConfig
.getPlacementConfig()
.getLocationId()
.equals(locationConfig.getId())) {
return locationConfig;
} else {
rootLocationConfigList.remove(locationConfig.getId());
}
}
if (rootLocationConfigList.isEmpty()) {
throw new NotAvailableException("root candidate");
} else if (rootLocationConfigList.size() == 1) {
return rootLocationConfigList.values().stream().findFirst().get();
}
throw new InvalidStateException("To many potential root locations detected!");
} catch (CouldNotPerformException ex) {
throw new CouldNotPerformException("Could not compute root location!", ex);
}
}
public static UnitConfig getRootLocation(
final ProtoBufMessageMap<String, UnitConfig, UnitConfig.Builder> entryMap)
throws NotAvailableException, CouldNotPerformException {
return getRootLocation(entryMap.getMessages());
}