/
http.go
93 lines (77 loc) · 1.78 KB
/
http.go
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package main
import (
"bytes"
"errors"
"io"
"io/ioutil"
"log"
"net/http"
"net/url"
)
import _ "net/http/pprof"
type ReqParams struct {
params url.Values
body []byte
}
func NewReqParams(req *http.Request) (*ReqParams, error) {
reqParams, err := url.ParseQuery(req.URL.RawQuery)
if err != nil {
return nil, err
}
data, err := ioutil.ReadAll(req.Body)
if err != nil {
return nil, err
}
return &ReqParams{reqParams, data}, nil
}
func (r *ReqParams) Query(key string) (string, error) {
keyData := r.params[key]
if len(keyData) == 0 {
return "", errors.New("key not in query params")
}
return keyData[0], nil
}
func httpServer(address string, port string, endChan chan int) {
http.HandleFunc("/ping", pingHandler)
http.HandleFunc("/put", putHandler)
go func() {
err := http.ListenAndServe(address+":"+port, nil)
if err != nil {
log.Fatal("http.ListenAndServe:", err)
}
}()
<-endChan
}
func pingHandler(w http.ResponseWriter, req *http.Request) {
w.Header().Set("Content-Length", "2")
io.WriteString(w, "OK")
}
// 消费者调用 http
func putHandler(w http.ResponseWriter, req *http.Request) {
var buf bytes.Buffer
reqParams, err := NewReqParams(req)
if err != nil {
log.Printf("HTTP: error - %s", err.Error())
return
}
// 获取 topic name
topicName, err := reqParams.Query("topic")
if err != nil {
log.Printf("HTTP: error - %s", err.Error())
return
}
_, err = buf.Write(Uuid())
if err != nil {
log.Printf("HTTP: error - %s", err.Error())
return
}
// body 中存放的是需要发的消息,http 头中的是 topic。
_, err = buf.Write(reqParams.body)
if err != nil {
log.Printf("HTTP: error - %s", err.Error())
return
}
// 现在 buf 中存的是:uuid + body
topic := GetTopic(topicName)
topic.PutMessage(NewMessage(buf.Bytes()))
}