list 转另一个list stream操作

private static List convertFromInventoryDoList(Long tenantId, Long ptnrId, InventoryRecordTypeEnum type, Long saleId, List piDOList) {
    if (CollectionUtils.isEmpty(piDOList)) {
        return new ArrayList<>();
    }
    if (saleId == null || saleId <= 0) {
        return new ArrayList<>();
    }
    return piDOList.stream()
        .map(it -> {
            PmsInventoryRecordDO pirDO = new PmsInventoryRecordDO();
            pirDO.setGmtCreate(new Date());
            pirDO.setGmtModified(new Date());
            pirDO.setPriceId(it.getPriceId());
            pirDO.setSaleId(saleId);
            pirDO.setCount(it.getSaleCount());
            pirDO.setType(type.getCode());
            pirDO.setEventId(it.getEventId());
            pirDO.setProjectId(it.getProjectId());
            pirDO.setPtnrId(ptnrId);
            pirDO.setTenantId(tenantId);
            pirDO.setDataState(DataStateEnum.EFFECTIVE.getCode());
            return pirDO;
        }).collect(Collectors.toList());
}