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data_list.go
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/
data_list.go
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package fctrl
import (
"sort"
"github.com/go-redis/redis"
)
type Data struct {
Score int64 `json:"ts"`
Detail interface{} `json:"detail"`
}
type DataList []Data
func (list DataList) Len() int { return len(list) }
func (list DataList) Less(i, j int) bool { return list[i].Score < list[j].Score }
func (list DataList) Swap(i, j int) { list[i], list[j] = list[j], list[i] }
func rankByScoreDesc(data map[int64]interface{}) DataList {
result := make(DataList, len(data))
i := 0
for k, v := range data {
result[i] = Data{k, v}
i++
}
// rank by score desc
sort.Sort(sort.Reverse(result))
return result
}
func (dataList *DataList) isReachThreshold(threshold int64) bool {
return reachThreshold(int64(len(*dataList)), threshold)
}
func reachThreshold(currentCount, threshold int64) bool {
// 很多人理解的阈值都不同,有的是大于有的是大于等于,在这里进行统一
return currentCount > threshold
}
func convertFromZ(zs []redis.Z) DataList {
res := make(map[int64]interface{})
for _, item := range zs {
res[int64(item.Score)] = item.Member
}
return rankByScoreDesc(res)
}
func redisToDataList(zs []redis.Z) DataList {
result := make(DataList, len(zs))
for k, v := range zs {
result[k].Score = int64(v.Score)
result[k].Detail = v.Member
}
return result
}