/
main.go
103 lines (83 loc) · 1.83 KB
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
package main
import (
"encoding/json"
"expvar"
"fmt"
"log"
"math/rand"
"net/http"
"strings"
)
var (
keyCountPckRecv = "countPckRecv"
keyCountPckSent = "countPckSent"
keyCountPckErr = "countPckErr"
userPrefix = "/users/"
)
type User struct {
Dn string
Age int
}
type Users struct {
users map[string]*User
}
func NewUsers(from, to int) *Users {
users := make(map[string]*User)
var dn string
var age int
for i := from; i < to; i++ {
dn = fmt.Sprintf("uid=%015d", i)
age = rand.Int()
users[dn] = &User{Dn: dn, Age: age % 70}
}
return &Users{users: users}
}
func (u *Users) Get(dn string) *User {
return u.users[dn]
}
type Response struct {
ReturnCode int
Data *User
}
func main() {
countPckRecv := expvar.NewInt(keyCountPckRecv)
countPckRecv.Set(0)
countPckSent := expvar.NewInt(keyCountPckSent)
countPckSent.Set(0)
countPckErr := expvar.NewInt(keyCountPckErr)
countPckErr.Set(0)
UserMap := NewUsers(0, 100)
http.HandleFunc(userPrefix, func(w http.ResponseWriter, r *http.Request) {
countPckRecv.Add(1)
uid := strings.TrimPrefix(r.URL.Path, userPrefix)
w.Header().Set("Content-Type", "application/json")
u := UserMap.Get(uid)
ret := 0
switch r.Method {
case "GET":
if u == nil {
ret = 2
}
res := Response{ReturnCode: ret, Data: u}
err := json.NewEncoder(w).Encode(res)
if err != nil {
http.Error(w, fmt.Sprintf("%s", err), http.StatusInternalServerError)
return
}
// case "PUT":
// if u == nil {
// http.Error(w, fmt.Sprintf("%s not found", uid), http.StatusInternalServerError)
// return
// }
case "POST":
case "DELETE":
default:
http.Error(w, "Method not allow", http.StatusMethodNotAllowed)
return
}
countPckSent.Add(1)
return
})
log.Printf("Running server on :8080")
log.Fatal(http.ListenAndServe(":8080", nil))
}