/**
* Filter out LUNs that are already a part of storage domains exist in the system.
*
* @param luns the LUNs list
* @return the filtered LUNs list
*/
protected List<LUNs> filterLUNsThatBelongToExistingStorageDomains(List<LUNs> luns) {
List<StorageDomain> existingStorageDomains = getStorageDomainDao().getAll();
final List<Guid> existingStorageDomainIDs = Entities.getIds(existingStorageDomains);
return luns.stream()
.filter(lun -> !existingStorageDomainIDs.contains(lun.getStorageDomainId()))
.collect(Collectors.toList());
}
/**
* Create StorageDomain objects according to the specified VG-IDs list.
*
* @param vgIDs the VG-IDs list
* @return storage domains list
*/
@SuppressWarnings("unchecked")
protected List<StorageDomain> getStorageDomainsByVolumeGroupIds(List<String> vgIDs) {
List<StorageDomain> storageDomains = new ArrayList<>();
// Get existing PhysicalVolumes.
List<String> existingLunIds = Entities.getIds(getLunDao().getAll());
for (String vgID : vgIDs) {
VDSReturnValue returnValue;
try {
returnValue =
executeGetVGInfo(new GetVGInfoVDSCommandParameters(getParameters().getVdsId(), vgID));
} catch (RuntimeException e) {
log.error("Could not get info for VG ID: '{}': {}", vgID, e.getMessage());
log.debug("Exception", e);
continue;
}
ArrayList<LUNs> luns = (ArrayList<LUNs>) returnValue.getReturnValue();
List<String> lunIdsOnStorage = Entities.getIds(luns);
if (CollectionUtils.containsAny(lunIdsOnStorage, existingLunIds)) {
log.info("There are existing luns in the system which are part of VG id '{}'", vgID);
continue;
}
// Get storage domain ID by a representative LUN
LUNs lun = luns.get(0);
Guid storageDomainId = lun.getStorageDomainId();
// Get storage domain using GetStorageDomainInfo
StorageDomain storageDomain = getStorageDomainById(storageDomainId);
if (storageDomain != null) {
storageDomains.add(storageDomain);
}
}
return storageDomains;
}