D-Net

            if(writeOps == -1){

            	//means the process was cancelled, so we must not commit

				log.warn(String.format("The feeding process on mdstore %s has been cancelled. Records will not be committed. Transaction %s set as invalid.", mdId, transactionId));

				dao.invalidTransaction(transactionId, mdId);

				failCallback.call(new MDStoreServiceException(String.format("Feeding cancelled for mdstore %s on transaction %s", mdId, transactionId)));

            }

            else {

				dao.commit(mdstore.getId(), mdId);

				int size = dao.refreshSize(mdId);

				touch(mdId, size);

				log.info("Finished feeding mdstore " + mdId + " - new size: " + size);

				doneCallback.call(buildParams(size, writeOps));

			}