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@Override public OrderReportVO getOrdersStatistics(LocalDate begin, LocalDate end) {
List<LocalDate> dateList = new ArrayList<>();
dateList.add(begin); while (!begin.equals(end)) { begin = begin.plusDays(1); dateList.add(begin); }
List<Integer> orderCountList = new ArrayList<>(); List<Integer> validOrderCountList = new ArrayList<>(); for (LocalDate date : dateList) { LocalDateTime beginTime = LocalDateTime.of(date, LocalTime.MIN); LocalDateTime endTime = LocalDateTime.of(date, LocalTime.MAX);
Integer orderCount = getOrderCount(beginTime, endTime, null); orderCountList.add(orderCount); Integer validOrderCount = getOrderCount(beginTime, endTime, Orders.COMPLETED); validOrderCountList.add(validOrderCount); }
Integer totalOrderCount = orderCountList.stream().reduce(Integer::sum).get(); Integer validOrderCount = validOrderCountList.stream().reduce(Integer::sum).get();
Double orderCompletionRate = 0.0; if (totalOrderCount != 0) { orderCompletionRate = validOrderCount.doubleValue() / totalOrderCount; }
return OrderReportVO.builder() .dateList(StringUtils.join(dateList, ",")) .orderCountList(StringUtils.join(orderCountList, ",")) .validOrderCountList(StringUtils.join(validOrderCountList, ",")) .totalOrderCount(totalOrderCount) .validOrderCount(validOrderCount) .orderCompletionRate(orderCompletionRate) .build(); }
private Integer getOrderCount(LocalDateTime begin, LocalDateTime end, Integer status) { Map map = new HashMap(); map.put("begin", begin); map.put("end", end); map.put("status", status);
return orderMapper.countByMap(map); }
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