05acf2c25
 김태훈
Added Converter f...
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// Converter for Ubees-Tracker
package main
import (
"bufio"
"bytes"
"encoding/binary"
"flag"
"fmt"
"io"
"log"
"os"
"regexp"
"strconv"
"time"
)
type data struct {
Time uint32
Msec uint16
Latitude int32
Longitude int32
Checksum uint16
}
const bytesPerLine = 128
var inputFileName string
var outputFileName string
func init() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s [OPTION] FILE
", os.Args[0])
flag.PrintDefaults()
}
flag.StringVar(&outputFileName, "o", "", "Specify output file path. Default is FILE.out")
flag.Parse()
if flag.NArg() == 0 {
flag.Usage()
os.Exit(2)
}
inputFileName = flag.Arg(0)
if outputFileName == "" {
outputFileName = inputFileName + ".out"
}
}
func main() {
fileIn, err := os.Open(inputFileName)
check(err)
defer fileIn.Close()
fileOut, err := os.OpenFile(outputFileName, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
check(err)
defer fileOut.Close()
b := parse(fileIn)
print(b, fileOut)
}
func check(err error) {
if err != nil {
log.Fatal(err)
}
}
func parse(r io.Reader) *bytes.Buffer {
b := bytes.NewBuffer(nil)
rLine := regexp.MustCompile(`:.*\|`)
rByte := regexp.MustCompile(`[0-9A-Fa-f]{2}`)
br := bufio.NewReader(r)
for {
l, _, err := br.ReadLine()
if err != nil {
if err == io.EOF {
return b
}
log.Fatal(err)
}
mLine := rLine.Find(l)
if mLine == nil {
log.Printf("Line not matched %#v", string(l))
continue
}
if bytes.HasPrefix(mLine, []byte(":FF")) {
continue
}
mBytes := rByte.FindAll(mLine, -1)
if len(mBytes) != bytesPerLine {
log.Printf("Length not matched %v %#v
", len(mBytes), string(l))
}
for _, mByte := range mBytes {
i, err := strconv.ParseUint(string(mByte), 16, 8)
check(err)
b.WriteByte(byte(i))
}
}
}
func print(r io.Reader, w io.Writer) {
bw := bufio.NewWriter(w)
defer bw.Flush()
var d data
for {
err := binary.Read(r, binary.LittleEndian, &d)
if err != nil {
if err == io.EOF {
return
}
log.Fatal(err)
}
t := time.Unix(int64(d.Time), int64(d.Msec)*1e6)
bw.WriteString(fmt.Sprintf("%v, %.4f, %.4f
",
t.Format("2006-01-02 15:04:05.000"),
float64(d.Latitude)/10000,
float64(d.Longitude)/10000))
}
}
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