works now!

git-svn-id: https://weed-fs.googlecode.com/svn/trunk@20 282b0af5-e82d-9cf1-ede4-77906d7719d0
This commit is contained in:
chris.lu@gmail.com
2011-12-22 04:04:47 +00:00
parent 9c6a9bf518
commit ea75165e85
7 changed files with 151 additions and 77 deletions

View File

@@ -5,6 +5,7 @@ import (
"flag"
"fmt"
"http"
"json"
"log"
"mime"
"strconv"
@@ -18,10 +19,12 @@ var (
publicServer = flag.String("pserver", "localhost:8080", "public server to serve data read")
metaServer = flag.String("mserver", "localhost:9333", "metadata server to store mappings")
store *storage.Store
store *storage.Store
)
func statusHandler(w http.ResponseWriter, r *http.Request) {
writeJson(w, r, store.Status())
}
func storeHandler(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case "GET":
@@ -35,25 +38,52 @@ func storeHandler(w http.ResponseWriter, r *http.Request) {
func GetHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
path := r.URL.Path
sepIndex := strings.Index(path[1:], "/") + 1
volumeId, _ := strconv.Atoui64(path[1:sepIndex])
dotIndex := strings.LastIndex(path, ".")
n.ParsePath(path[sepIndex+1 : dotIndex])
ext := path[dotIndex:]
sepIndex := strings.LastIndex(path, "/")
commaIndex := strings.LastIndex(path[sepIndex:], ",")
dotIndex := strings.LastIndex(path[sepIndex:], ".")
fid := path[commaIndex+1:]
if dotIndex > 0 {
fid = path[commaIndex+1 : dotIndex]
}
volumeId, _ := strconv.Atoui64(path[sepIndex+1 : commaIndex])
n.ParsePath(fid)
store.Read(volumeId, n)
w.Header().Set("Content-Type", mime.TypeByExtension(ext))
if dotIndex > 0 {
ext := path[dotIndex:]
w.Header().Set("Content-Type", mime.TypeByExtension(ext))
}
w.Write(n.Data)
}
func PostHandler(w http.ResponseWriter, r *http.Request) {
volumeId, _ := strconv.Atoui64(r.FormValue("volumeId"))
store.Write(volumeId, storage.NewNeedle(r))
w.Header().Set("Content-Type", "text/plain")
fmt.Fprint(w, "volumeId=", volumeId, "\n")
path := r.URL.Path
commaIndex := strings.LastIndex(path, ",")
sepIndex := strings.LastIndex(path[:commaIndex], "/")
volumeId, e := strconv.Atoui64(path[sepIndex+1 : commaIndex])
if e != nil {
writeJson(w, r, e)
} else {
store.Write(volumeId, storage.NewNeedle(r))
writeJson(w, r, make(map[string]string))
}
}
func DeleteHandler(w http.ResponseWriter, r *http.Request) {
}
func writeJson(w http.ResponseWriter, r *http.Request, obj interface{}) {
w.Header().Set("Content-Type", "application/javascript")
bytes, _ := json.Marshal(obj)
callback := r.FormValue("callback")
if callback == "" {
w.Write(bytes)
} else {
w.Write([]uint8(callback))
w.Write([]uint8("("))
fmt.Fprint(w, string(bytes))
w.Write([]uint8(")"))
}
//log.Println("JSON Response", string(bytes))
}
func main() {
flag.Parse()
@@ -61,14 +91,15 @@ func main() {
store = storage.NewStore(*port, *publicServer, *chunkFolder, 1024*1024*1024, *chunkCount)
defer store.Close()
http.HandleFunc("/", storeHandler)
http.HandleFunc("/status", statusHandler)
store.Join(*metaServer)
log.Println("store joined at", *metaServer)
log.Println("Start storage service at http://127.0.0.1:" + strconv.Itoa(*port))
e := http.ListenAndServe(":"+strconv.Itoa(*port), nil)
if e!=nil {
log.Fatalf("Fail to start:",e.String())
if e != nil {
log.Fatalf("Fail to start:", e.String())
}
}

View File

@@ -17,11 +17,15 @@ var (
metaFolder = flag.String("mdir", "/tmp", "data directory to store mappings")
capacity = flag.Int("capacity", 100, "maximum number of volumes to hold")
mapper *directory.Mapper
)
func dirReadHandler(w http.ResponseWriter, r *http.Request) {
volumeId, _ := strconv.Atoui64(r.FormValue("volumeId"))
func dirLookupHandler(w http.ResponseWriter, r *http.Request) {
vid := r.FormValue("volumeId")
commaSep := strings.Index(vid, ",")
if commaSep > 0 {
vid = vid[0:commaSep]
}
volumeId, _ := strconv.Atoui64(vid)
machine := mapper.Get(uint32(volumeId))
writeJson(w, r, machine.Server)
}
@@ -29,9 +33,9 @@ func dirWriteHandler(w http.ResponseWriter, r *http.Request) {
_, machine := mapper.PickForWrite()
writeJson(w, r, machine)
}
func dirPickHandler(w http.ResponseWriter, r *http.Request) {
fid, machine := mapper.PickForWrite()
writeJson(w, r, map[string]string{"fid":fid,"url":machine.Url})
func dirAssignHandler(w http.ResponseWriter, r *http.Request) {
fid, machine := mapper.PickForWrite()
writeJson(w, r, map[string]string{"fid": fid, "url": machine.Url})
}
func dirJoinHandler(w http.ResponseWriter, r *http.Request) {
s := r.RemoteAddr[0:strings.Index(r.RemoteAddr, ":")+1] + r.FormValue("port")
@@ -44,9 +48,7 @@ func dirJoinHandler(w http.ResponseWriter, r *http.Request) {
writeJson(w, r, vids)
}
func dirStatusHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
bytes, _ := json.Marshal(mapper)
fmt.Fprint(w, string(bytes))
writeJson(w, r, mapper)
}
func writeJson(w http.ResponseWriter, r *http.Request, obj interface{}) {
w.Header().Set("Content-Type", "application/javascript")
@@ -67,9 +69,9 @@ func main() {
flag.Parse()
mapper = directory.NewMapper(*metaFolder, "directory", *capacity)
defer mapper.Save()
http.HandleFunc("/dir/read", dirReadHandler)
http.HandleFunc("/dir/assign", dirAssignHandler)
http.HandleFunc("/dir/lookup", dirLookupHandler)
http.HandleFunc("/dir/write", dirWriteHandler)
http.HandleFunc("/dir/pick", dirPickHandler)
http.HandleFunc("/dir/join", dirJoinHandler)
http.HandleFunc("/dir/status", dirStatusHandler)