/
db.go
120 lines (100 loc) · 1.97 KB
/
db.go
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package main
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"time"
"github.com/boltdb/bolt"
)
type StatRecord struct {
Uri string
Rstatus int
Rtime time.Duration
}
func (sr StatRecord) String() string {
return fmt.Sprintf("%s %d %f",
sr.Uri,
sr.Rstatus,
sr.Rtime.Seconds())
}
func OpenDb() *bolt.DB {
db, err := bolt.Open("stat.db", 0600, nil)
if err != nil {
panic("Can't open db for statistic")
}
return db
}
func PrepareDb(db *bolt.DB, urls []string) error {
if err := db.Update(func(tx *bolt.Tx) error {
for _, u := range urls {
r, err := url.Parse(u)
if err != nil {
//TODO: add logging
continue
}
domain := r.Host
if _, err := tx.CreateBucketIfNotExists([]byte(domain)); err != nil {
fmt.Println(err)
return err
}
}
return nil
}); err != nil {
fmt.Println(err)
return err
}
return nil
}
func SaveStatus(db *bolt.DB, u *url.URL, resp *http.Response, d time.Duration) error {
if err := db.Update(func(tx *bolt.Tx) error {
b, err := tx.CreateBucketIfNotExists([]byte(u.Host))
if err != nil {
return err
}
// dirty hack for /
var uPath string
if u.Path == "" {
uPath = "/"
} else {
uPath = u.Path
}
sr := &StatRecord{uPath, resp.StatusCode, d}
data, err := json.Marshal(sr)
if err != nil {
return err
}
cur := time.Now()
t := cur.Format(time.RFC3339)
if err := b.Put([]byte(t), data); err != nil {
return err
}
return nil
}); err != nil {
return err
}
return nil
}
func ShowStatus(db *bolt.DB, u string) error {
ur, err := url.Parse(u)
if err != nil {
return err
}
fmt.Printf("Host %s status:\n", ur.Host)
db.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(ur.Host))
c := b.Cursor()
for k, v := c.First(); k != nil; k, v = c.Next() {
var sr StatRecord
err := json.Unmarshal(v, &sr)
if err != nil {
fmt.Println(err)
c.Next()
}
fmt.Printf("%s => %s\n", k, sr)
}
fmt.Printf("\n\n")
return nil
})
return nil
}