a simple url shortener in Go (check it out at qurl.org)
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package main
import (
"encoding/json"
"fmt"
"net"
"os"
"qurl/qurl"
"qurl/storage"
"time"
)
type qurljson struct {
ID uint64 `json:"id"`
IP string `json:"ip"`
Browser string `json:"browser"`
URL string `json:"url"`
Date struct {
Date int64 `json:"$date"`
} `json:"date"`
}
func loadjson(stor storage.Storage, filename string) error {
file, err := os.Open(filename)
if err != nil {
return fmt.Errorf("Error opening %s: %s", filename, err.Error())
}
defer file.Close()
var qj []qurljson
decoder := json.NewDecoder(file)
err = decoder.Decode(&qj)
if err != nil {
return fmt.Errorf("Error parsing %s: %s", filename, err.Error())
}
fmt.Printf("Parsing %d qurls.. \n", len(qj))
var max uint64 = 0
var count uint64 = 0
for _, e := range qj {
if e.ID > max {
max = e.ID
}
qurl := &qurl.QURL{
ID: e.ID,
URL: e.URL,
}
if e.Date.Date > 0 {
qurl.Created = time.Unix((e.Date.Date / 1000), 0)
}
if e.IP != "" {
qurl.IP = net.ParseIP(e.IP)
}
if e.Browser != "" {
qurl.Browser = e.Browser
}
err := stor.AddQURL(qurl)
if err != nil {
fmt.Printf("\nError adding qurl: %s\n", err.Error())
continue
}
count++
if (count % 100) == 0 {
fmt.Printf("*")
}
}
err = stor.SetQURLSequence(max)
if err != nil {
return fmt.Errorf("Error setting sequence: %s", err.Error())
}
fmt.Printf("\nDone!\n")
return nil
}