refactor: 将布隆过滤器改为Cuckoo过滤器并优化代码结构

controller/dataController.go

@@ -31,6 +31,7 @@ func ReadDataHandler(c *gin.Context) {
 }
 
 func WriteDataHandler(c *gin.Context) {
+	//解析输入数据
 	input := struct {
 		Token string `form:"token" binding:"required"`
 		Data  string `form:"data" binding:"required"`
@@ -40,6 +41,7 @@ func WriteDataHandler(c *gin.Context) {
 		return
 	}
 
+	//数据获取
 	dedupObject, err := db.GetDedupObject(input.Token)
 	if err != nil {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
@@ -52,7 +54,7 @@ func WriteDataHandler(c *gin.Context) {
 	}
 	dedupValue := strings.Split(input.Data, "----")[dataIndex[dedupObject]]
 
-	err = createBF(fmt.Sprintf("dedup:%s:%s", input.Token, dedupObject), 0.01, 100000000)
+	err = createCF(fmt.Sprintf("dedup:%s:%s", input.Token, dedupObject), 100000000)
 	if err != nil && err.Error() != "ERR item exists" {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
@@ -64,7 +66,7 @@ local dedupValue = ARGV[1] -- ARGV[1]: 去重值
 local rawData = ARGV[2]    -- ARGV[2]: 原始数据
 
 -- 检查布隆过滤器中是否已存在该值
-local exists = redis.call('BF.EXISTS', dedupKey, dedupValue)
+local exists = redis.call('CF.EXISTS', dedupKey, dedupValue)
 
 -- 如果已存在，返回已去重标记
 if exists == 1 then
@@ -72,7 +74,7 @@ if exists == 1 then
 end
 
 -- 添加到布隆过滤器
-redis.call('BF.ADD', dedupKey, dedupValue)
+redis.call('CF.ADD', dedupKey, dedupValue)
 -- 添加到列表
 redis.call('LPUSH', listKey, rawData)
 
@@ -102,8 +104,8 @@ return "ok"
 	c.JSON(http.StatusInternalServerError, gin.H{"error": "WriteDataHandler 错误"})
 }
 
-func createBF(bloomFilter string, errorRate float64, capacity int64) error {
-	_, err := global.RDB.BFReserve(global.RCtx, bloomFilter, errorRate, capacity).Result()
+func createCF(bloomFilter string, capacity int64) error {
+	_, err := global.RDB.CFReserve(global.RCtx, bloomFilter, capacity).Result()
 	return err
 }
 

controller/tokenController.go

@@ -3,9 +3,9 @@ package controller
 import (
 	"dypid/db"
 	"dypid/global"
-	"fmt"
 	"net/http"
 	"strconv"
+	"strings"
 
 	"github.com/gin-gonic/gin"
 )
@@ -116,9 +116,10 @@ func GetTokenInfoHandler(c *gin.Context) {
 func DeleteTokenInfoHandler(c *gin.Context) {
 	//解析输入数据
 	input := struct {
-		Token     string `form:"token" binding:"required"`
-		DedupBF   string `form:"dedup_bf"`
-		CacheList string `form:"cache_list"`
+		Token      string `form:"token" binding:"required"`
+		DedupBF    string `form:"dedup_bf"`
+		CacheList  string `form:"cache_list"`
+		BothNumber string `form:"both_number"`
 	}{}
 	if err := c.ShouldBindQuery(&input); err != nil {
 		c.JSON(http.StatusBadRequest, gin.H{"error": "Token不能为空"})
@@ -132,6 +133,12 @@ func DeleteTokenInfoHandler(c *gin.Context) {
 		return
 	}
 
+	dedupObject, err := db.GetDedupObject(input.Token)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
 	//删除去重对象
 	switch input.DedupBF {
 	case "":
@@ -139,6 +146,7 @@ func DeleteTokenInfoHandler(c *gin.Context) {
 		keys := global.RDB.Keys(global.RCtx, "dedup:"+input.Token+":*").Val()
 		global.RDB.Del(global.RCtx, keys...)
 	default:
+		//TODO 不考虑单独删除指定数量去重参考值
 		_, err := strconv.Atoi(input.DedupBF)
 		if err != nil {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "dedup_bf设置错误 " + err.Error()})
@@ -155,9 +163,25 @@ func DeleteTokenInfoHandler(c *gin.Context) {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "cache_list设置错误 " + err.Error()})
 			return
 		}
-		fmt.Println(-i)
 		global.RDB.LTrim(global.RCtx, "list:"+input.Token, 1, int64(-i))
 	}
+	//TODO
+	switch input.BothNumber {
+	case "":
+	default:
+		i, err := strconv.Atoi(input.BothNumber)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "both_number设置错误 " + err.Error()})
+			return
+		}
+		result := global.RDB.LRange(global.RCtx, "list:"+input.Token, 1, int64(i)).Val()
+		global.RDB.LTrim(global.RCtx, "list:"+input.Token, 1, int64(-i))
+		dataIndex, err := getDataIndex(input.Token)
+		for _, s := range result {
+			s2 := strings.Split(s, "----")[dataIndex[dedupObject]]
+			global.RDB.CFDel(global.RCtx, "dedup:"+input.Token+":"+dedupObject, s2)
+		}
+	}
 
 	//输出信息
 	c.JSON(http.StatusOK, gin.H{"result": "ok"})