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use 307 to redirect client

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This commit is contained in:
Xiang Li 2013-06-28 11:26:17 -07:00
parent e91ea7be38
commit fcb78ed5cb
1 changed files with 11 additions and 7 deletions
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18
handlers.go
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@ -4,7 +4,7 @@ import (
"encoding/json"
"github.com/xiangli-cmu/go-raft"
"net/http"
//"fmt"
"fmt"
"io/ioutil"
//"bytes"
"strconv"
@ -78,7 +78,7 @@ func JoinHttpHandler(w http.ResponseWriter, req *http.Request) {
if err := decodeJsonRequest(req, command); err == nil {
debug("Receive Join Request from %s", command.Name)
excute(command, &w)
excute(command, &w, req)
} else {
w.WriteHeader(http.StatusInternalServerError)
return
@ -116,7 +116,7 @@ func SetHttpHandler(w http.ResponseWriter, req *http.Request) {
command.ExpireTime = time.Unix(0, 0)
}
excute(command, &w)
excute(command, &w, req)
}
@ -128,10 +128,10 @@ func DeleteHttpHandler(w http.ResponseWriter, req *http.Request) {
command := &DeleteCommand{}
command.Key = key
excute(command, &w)
excute(command, &w, req)
}
func excute(c Command, w *http.ResponseWriter) {
func excute(c Command, w *http.ResponseWriter, req *http.Request) {
if server.State() == "leader" {
if body, err := server.Do(c); err != nil {
warn("Commit failed %v", err)
@ -155,8 +155,12 @@ func excute(c Command, w *http.ResponseWriter) {
} else {
// tell the client where is the leader
debug("Redirect to the leader %s", server.Leader())
(*w).WriteHeader(http.StatusServiceUnavailable)
(*w).Write([]byte(server.Leader()))
path := req.URL.Path
url := "http://" + server.Leader() + path
debug("redirect to ", url)
http.Redirect(*w, req, url, http.StatusTemporaryRedirect)
return
}