**
* @Author: ws
* @File: main
* @Date: 2019/11/16 0016 14:35
* @Remark: 
*/
var(
 _INSERT_INTO="INSERTINTO${table}VALUES"
 _Dir="temp"
)
var TABLE_CAR="T_SCM_CAR"

func ReadSqlFile(){
 t1 := time.Now() // get current time
 f, err := os.Open("E:\\update\\crm_20191112_210001.sql\\crm_20191112_210001.sql")
 defer f.Close()
 if err != nil {
 }
 buf := bufio.NewReader(f)
 nfs:=getTxtFile(TABLE_CAR)
 for {
  s, err := buf.ReadString('\n')
  if(err!=nil){
   logger.ERROR(err.Error())
   break
  }
  if err == nil {
   if s==""{
    continue
   }
   sqlstr:=getSqlStr(s,TABLE_CAR)
   if(sqlstr!=""){
    nfs.Write([]byte(sqlstr))
   }
  }
 }
 elapsed := time.Since(t1)
 fmt.Println("App elapsed: ", elapsed)
}
/**
调整验证每一行数据的格式化，并与预设是否一致，如果一致则读取加载到
 */
func getSqlStr(sqlstr,tableName string)string{
 var realTableName=strings.Replace(_INSERT_INTO,"${table}",tableName,-1)
 replaceEmptyStr:=strings.Replace(sqlstr," ","",-1)
 tempS:=strings.ToUpper(strings.Replace(replaceEmptyStr,"`","",-1))
 if(len(tempS)>=len(realTableName)) {
  tabName := tempS[0:len(realTableName)]
  if (tabName ==realTableName) {
   return sqlstr
  }
 }
 return ""
}

/**
打开txt文件
 */
func getTxtFile(fileName string)os.File{
 txtFile:=createToFile(fmt.Sprintf("%v/%v.txt",_Dir,fileName))
 nfs, err := os.OpenFile(txtFile.Name(), os.O_APPEND |os.O_RDWR|os.O_CREATE, 0644)
 if err != nil {
  logger.ERROR(fmt.Sprintf("打开文件失败:%v",err.Error()))
 }
 defer nfs.Close()
 nfs.Seek(0, io.SeekEnd)
 return *nfs
}


func readLine(r *bufio.Reader) (string, error) {
 line, isprefix, err := r.ReadLine()
 for isprefix && err == nil {
  var bs []byte
  bs, isprefix, err = r.ReadLine()
  line = append(line, bs...)
 }
 return string(line), err
}

func createToFile(fileName string)os.File{
 _, err := os.Stat(_Dir)
 if err == nil {
 }
 if os.IsNotExist(err) {
  os.MkdirAll(_Dir, os.ModePerm)
 }
 newFile, err := os.Create(fileName)
 if err != nil {
  logger.ERROR(fmt.Sprintf("文件创建失败:%v",err.Error()))
 }
 defer func() {
  newFile.Close()
 }()
 newFile.WriteString("\xEF\xBB\xBF") // 写入UTF-8 BOM，防止中文乱码
 return *newFile
}

func main() {
 ReadSqlFile()
}