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|  |  |  | import java.util.List; | 
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|  |  |  | import java.util.Map; | 
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|  |  |  | import java.util.OptionalDouble; | 
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|  |  |  | import java.util.stream.Collectors; | 
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|  |  |  | import java.util.stream.DoubleStream; | 
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|  |  |  |  | 
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|  |  |  | /** | 
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|  |  |  | 
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|  |  |  | wrapper.select("city_code", "city_id").eq("is_delete", Constants.NOT_DELETE); | 
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|  |  |  | List<CityConfigAqi> list = cityConfigAqiService.list(wrapper); | 
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|  |  |  |  | 
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|  |  |  | //获取历史数据,用于计算臭氧滑动值 | 
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|  |  |  | Map<Integer, List<Map<String, Object>>> cityData = null; | 
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|  |  |  | if (start != null) { | 
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|  |  |  | QueryWrapper<CityAqi> queryWrapper = new QueryWrapper<>(); | 
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|  |  |  | List<Integer> cityCodes = list.stream().map(CityConfigAqi::getCityCode) | 
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|  |  |  | .collect(Collectors.toList()); | 
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|  |  |  |  | 
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|  |  |  | queryWrapper.select("city_code", "time", "value") | 
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|  |  |  | .ge("time", DateUtils.dateToDateString(start)) | 
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|  |  |  | .in("city_code", cityCodes); | 
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|  |  |  | List<Map<String, Object>> selectMaps = cityAqiMapper.selectMaps(queryWrapper); | 
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|  |  |  |  | 
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|  |  |  | //按city_code分组 | 
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|  |  |  | cityData = selectMaps.stream() | 
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|  |  |  | .collect(Collectors.groupingBy(o -> Integer.parseInt(o.get("city_code").toString()))); | 
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|  |  |  | } | 
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|  |  |  |  | 
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|  |  |  |  | 
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|  |  |  | List<CityAqi> cityAqiList = new ArrayList<>(); | 
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|  |  |  | CityAqi cityAqi = new CityAqi(); | 
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|  |  |  |  | 
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|  |  |  | for (CityConfigAqi cityConfigAqi : list) { | 
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|  |  |  | CityAqi cityAqi = new CityAqi(); | 
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|  |  |  | Integer cityCode = cityConfigAqi.getCityCode(); | 
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|  |  |  | Map<String, Object> data; | 
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|  |  |  | try { | 
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|  |  |  | 
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|  |  |  | aqi.put("AQI", aqi.remove("value")); | 
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|  |  |  |  | 
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|  |  |  | //o3滑动值计算 | 
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|  |  |  | if (start != null) { | 
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|  |  |  | QueryWrapper<CityAqi> queryWrapper = new QueryWrapper<>(); | 
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|  |  |  | queryWrapper.select("time", "value") | 
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|  |  |  | .eq("city_code", cityCode) | 
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|  |  |  | .ge("time", DateUtils.dateToDateString(start)); | 
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|  |  |  | List<Map<String, Object>> cityAqis = cityAqiMapper.selectMaps(queryWrapper); | 
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|  |  |  | if (cityData != null) { | 
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|  |  |  | List<Map<String, Object>> cityAqis = cityData.get(cityCode); | 
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|  |  |  |  | 
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|  |  |  | Map<String, Object> params = new HashMap<>(); | 
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|  |  |  | params.put("time", DateUtils.dateToDateString(dataTime, DateUtils.yyyy_MM_dd_HH_mm_ss_S_EN)); | 
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|  |  |  | params.put("value", JSONObject.toJSONString(aqi)); | 
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