@Override public NetworkServiceProviderType getTypeOfNetworkServiceProviderForService( String l3NetworkUuid, NetworkServiceType serviceType) { L3NetworkVO l3vo = dbf.findByUuid(l3NetworkUuid, L3NetworkVO.class); L3NetworkInventory l3inv = L3NetworkInventory.valueOf(l3vo); NetworkServiceL3NetworkRefInventory targetRef = null; for (NetworkServiceL3NetworkRefInventory ref : l3inv.getNetworkServices()) { if (ref.getNetworkServiceType().equals(serviceType.toString())) { targetRef = ref; break; } } if (targetRef == null) { throw new OperationFailureException( errf.stringToOperationError( String.format( "L3Network[uuid:%s] doesn't have network service[type:%s] enabled or no provider provides this network service", l3NetworkUuid, serviceType))); } SimpleQuery<NetworkServiceProviderVO> q = dbf.createQuery(NetworkServiceProviderVO.class); q.select(NetworkServiceProviderVO_.type); q.add(NetworkServiceProviderVO_.uuid, Op.EQ, targetRef.getNetworkServiceProviderUuid()); String providerType = q.findValue(); return NetworkServiceProviderType.valueOf(providerType); }