package seq
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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)
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// 解析SEQ文件
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func ParseSeqEdi(ediFile string, sequence *SEQUENCE) (err error) {
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var (
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f *os.File
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fd []byte
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datalist []string
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row string
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rowObj string
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ilen int
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dtm DTM
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seq SEQ
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gir GIR
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loc LOC
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)
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// 打开文件
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if f, err = os.Open(ediFile); err != nil {
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goto ERR
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}
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defer f.Close()
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// 读取文件数据
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if fd, err = ioutil.ReadAll(f); err != nil {
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goto ERR
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}
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// 切割数据
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datalist = strings.Split(string(fd), "'")
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// 遍历数据,生成SEQ对象
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sequence.DataRows = 0
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fmt.Println("Total data row = ", len(datalist))
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for _, row = range datalist {
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if strings.TrimSpace(row) == "" {
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continue
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}
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rowObj = getSeqDataRowObj(row)
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switch rowObj {
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case "UNB":
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if err = sequence.Unb.Parse(row); err != nil {
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goto ERR
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}
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case "UNH":
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if err = sequence.Unh.Parse(row); err != nil {
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goto ERR
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}
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sequence.DataRows++
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case "BGM":
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if err = sequence.Bgm.Parse(row); err != nil {
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goto ERR
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}
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sequence.DataRows++
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case "DTM":
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dtm = DTM{}
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if err = dtm.Parse(row); err != nil {
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goto ERR
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}
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// 基于日期时间类型判定是TOD还是SEQ订单时间
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// 137 是TOD消息时间;194是订单开始时间
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switch dtm.DateTimeType {
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case 137:
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sequence.Dtm = dtm
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case 42:
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ilen = len(sequence.SeqList)
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if ilen < 1 {
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err = errors.New("SEQ dtm is existed before the 1st SEQ!")
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goto ERR
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}
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sequence.SeqList[ilen-1].Dtm = dtm
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default:
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err = errors.New("Unknown datetime type in DTM : " + string(dtm.DateTimeType))
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goto ERR
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}
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sequence.DataRows++
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case "FTX":
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if err = sequence.Ftx.Parse(row); err != nil {
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goto ERR
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}
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sequence.DataRows++
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case "NAD":
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if err = sequence.Nad.Parse(row); err != nil {
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goto ERR
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}
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sequence.DataRows++
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case "SEQ":
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seq = SEQ{}
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if err = seq.Parse(row); err != nil {
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goto ERR
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}
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sequence.SeqList = append(sequence.SeqList, seq)
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sequence.DataRows++
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case "GIR":
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gir = GIR{}
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if err = gir.Parse(row); err != nil {
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goto ERR
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}
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ilen = len(sequence.SeqList)
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if ilen < 1 {
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err = errors.New("SEQ gir is existed before the 1st SEQ!")
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goto ERR
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}
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sequence.SeqList[ilen-1].Gir = gir
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sequence.DataRows++
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case "LOC":
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loc = LOC{}
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if err = loc.Parse(row); err != nil {
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goto ERR
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}
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ilen = len(sequence.SeqList)
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if ilen < 1 {
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err = errors.New("SEQ loc is existed before the 1st SEQ!")
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goto ERR
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}
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switch loc.LocType {
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case 44:
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sequence.SeqList[ilen-1].Loc44 = loc
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case 83:
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sequence.SeqList[ilen-1].Loc83 = loc
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}
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sequence.DataRows++
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case "UNT":
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sequence.Unt = UNT{}
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if err = sequence.Unt.Parse(row); err != nil {
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goto ERR
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}
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sequence.DataRows++
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case "UNZ":
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sequence.Unz = UNZ{}
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if err = sequence.Unz.Parse(row); err != nil {
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goto ERR
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}
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break
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default:
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err = errors.New("Unknown SEQ object : " + rowObj)
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goto ERR
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}
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}
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if sequence.Unt.DataRows != sequence.DataRows {
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err = errors.New(fmt.Sprintf("Unt datarows: %d is not matching the actual datarows: %d", sequence.Unt.DataRows, sequence.DataRows))
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goto ERR
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}
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ERR:
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fmt.Println(err)
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return
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}
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func getSeqDataRowObj(row string) (obj string) {
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if len(row) < 3 {
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return ""
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}
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return strings.ToUpper(row[:3])
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}
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// 打印解析的SEQ对象
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func PrintSeqEdi(sequence *SEQUENCE) {
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var (
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seq SEQ
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)
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sequence.Unb.Print()
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sequence.Unh.Print()
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sequence.Bgm.Print()
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sequence.Dtm.Print()
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sequence.Ftx.Print()
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sequence.Nad.Print()
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for _, seq = range sequence.SeqList {
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seq.Print()
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seq.Dtm.Print()
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seq.Gir.Print()
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seq.Loc44.Print()
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seq.Loc83.Print()
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}
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sequence.Unt.Print()
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sequence.Unz.Print()
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}
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