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package DataExchange
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import (
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"dsBaseRpc/Utils/CommonUtil"
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"dsBaseRpc/Utils/DbUtil"
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"dsBaseRpc/Utils/FileUtil"
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"encoding/json"
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"fmt"
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"os"
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"time"
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)
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var db = DbUtil.Engine
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// 日志文件路径
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var progressFilePath = "/usr/local/SyncDataLogs/"
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//有同步哪些表,之所以不遍历文件的名称进行上报，是因为需要控制上传的顺序，如果只是文件名，就丢失了顺序
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var sqlDict = []string{"t_base_organization", "t_base_class"}
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/**
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功能：初始化目录
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*/
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func init() {
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if !FileUtil.PathExists(progressFilePath) {
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os.MkdirAll(progressFilePath, os.ModePerm)
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}
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}
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/**
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功能：数据上报
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作者：黄海
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时间：2020-07-16
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*/
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func DataExchange() {
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for {
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//本轮上报的数量，如果是0，休息5秒后再继续上传
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postCount := UploadData()
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if postCount == 0 {
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fmt.Println("同步：本轮没有可以上报的数据，将休息5秒！")
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time.Sleep(5 * 1e9)
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}
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}
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}
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// 日志文件对应的结构体
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type logStruct struct {
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StartUpdateTs string `json:"start_update_ts"`
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IdInt int64 `json:"id_int"`
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}
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/**
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* 功能：上报所有大于给定时间戳的数据
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* 作者：黄海
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* 时间：2019-01-02
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*/
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func UploadData() int {
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var postCount = 0
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//遍历所有的配置节，进行循环
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for i := range sqlDict {
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count := 0
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//默认的开始时间
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startUpdateTs := "1970-01-01 00:00:00"
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//默认的整数主键值
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var idInt int64 = 0
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//查询结果集
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var list []map[string]interface{}
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//表名
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tableName := sqlDict[i]
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//日志文件位置
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logName := progressFilePath + tableName + ".log"
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//判断文件是不是存在
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if FileUtil.PathExists(logName) {
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//读取配置信息
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var logstruct logStruct
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if err := json.Unmarshal([]byte(FileUtil.ReadFileContent(logName)), &logstruct); err == nil {
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startUpdateTs = logstruct.StartUpdateTs
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idInt = logstruct.IdInt
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} else {
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fmt.Println("解析JSON文件失败:" + err.Error())
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}
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}
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//一直循环
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for {
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//获取数据
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startUpdateTs, idInt, list = getRecord(tableName, startUpdateTs, idInt)
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if len(list) == 0 {
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break
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}
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//上报到Http Api
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//TODO
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//记录上报数量
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count = count + len(list)
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//记录日志
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var l logStruct
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l.IdInt = idInt
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l.StartUpdateTs = startUpdateTs
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jsonBytes, err := json.Marshal(l)
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if err != nil {
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fmt.Println(err.Error())
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}
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FileUtil.WriteContent(logName, string(jsonBytes))
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//提示信息
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fmt.Println("同步：" + tableName + ",上报" + CommonUtil.ConvertIntToString(count) +
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"个，start_update_ts=" + startUpdateTs + ",id_int=" + CommonUtil.ConvertInt64ToString(idInt))
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}
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postCount = postCount + count
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}
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return postCount
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}
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/**
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* 功能：获取一个表的指定大小的数据
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* 作者：黄海
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* 时间：2019-01-16
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*/
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func getRecord(tableName string, lastUpdatedTime string, idInt int64) (string, int64, []map[string]interface{}) {
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//每次获取的条数
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limit := 100
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//SQL内容
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sqlPublic := FileUtil.ReadFileContent("./Sql/" + tableName + ".sql")
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//时间戳相等的SQL
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eqSql := sqlPublic + " where t1.last_updated_time =? and t1.id_int>? order by t1.last_updated_time,t1.id_int limit ?"
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//时间戳大于的SQL
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gtSql := sqlPublic + " where t1.last_updated_time >? order by t1.last_updated_time,t1.id_int limit ?"
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//(1)计算相等的
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var rsEq = make([]map[string]interface{}, 0)
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var rsGt = make([]map[string]interface{}, 0)
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lastUpdatedTime, idInt, rsEq = getRecordEq(eqSql, lastUpdatedTime, idInt, limit)
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if len(rsEq) < limit {
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//尝试一次gt操作(组合一下)
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lastUpdatedTime, idInt, rsGt = getRecordGt(gtSql, lastUpdatedTime, idInt, limit-len(rsEq))
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if len(rsGt) > 0 {
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//拼装一下,合并两个结果集
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for i := range rsGt {
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rsEq = append(rsEq, rsGt[i])
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}
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//更改一下
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lastUpdatedTime = rsGt[len(rsGt)-1]["last_updated_time"].(string)
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idInt = rsGt[len(rsGt)-1]["id_int"].(int64)
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}
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}
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return lastUpdatedTime, idInt, rsEq
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}
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/**
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功能：获取时间戳一致的数据
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作者：黄海
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时间：2020-7-17
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*/
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func getRecordEq(eqSql string, lastUpdatedTime string, idInt int64, limit int) (string, int64, []map[string]interface{}) {
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rs, _ := db.SQL(eqSql, lastUpdatedTime, idInt, limit).Query().List()
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if rs != nil && len(rs) > 0 {
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//取出最后一行的数据进行回写
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lastUpdatedTime = rs[len(rs)-1]["last_updated_time"].(string)
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idInt = rs[len(rs)-1]["id_int"].(int64)
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return lastUpdatedTime, idInt, rs
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} else {
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return lastUpdatedTime, idInt, nil
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}
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}
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/**
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功能：获取大于指定时间戳的数据
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作者：黄海
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时间：2020-7-17
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*/
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func getRecordGt(gtSql string, lastUpdatedTime string, idInt int64, limit int) (string, int64, []map[string]interface{}) {
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rs, _ := db.SQL(gtSql, lastUpdatedTime, limit).Query().List()
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if rs != nil && len(rs) > 0 {
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//取出最后一行的数据进行回写
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lastUpdatedTime = rs[len(rs)-1]["last_updated_time"].(string)
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idInt := rs[len(rs)-1]["id_int"].(int64)
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return lastUpdatedTime, idInt, rs
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} else {
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return lastUpdatedTime, idInt, nil
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}
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}
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