adding makefiles created by go-gb

git-svn-id: https://weed-fs.googlecode.com/svn/trunk@36 282b0af5-e82d-9cf1-ede4-77906d7719d0

weed-fs/src/cmd/weedvolume/weedvolume.go

@@ -0,0 +1,157 @@
+package main
+
+import (
+    "storage"
+    "flag"
+    "fmt"
+    "http"
+    "json"
+    "log"
+    "mime"
+    "rand"
+    "strconv"
+    "strings"
+    "time"
+)
+
+var (
+    port         = flag.Int("port", 8080, "http listen port")
+    chunkFolder  = flag.String("dir", "/tmp", "data directory to store files")
+    volumes   = flag.String("volumes", "0,1-3,4", "comma-separated list of volume ids or range of ids")
+    publicUrl = flag.String("publicUrl", "localhost:8080", "public url to serve data read")
+    metaServer   = flag.String("mserver", "localhost:9333", "master directory server to store mappings")
+    IsDebug      = flag.Bool("debug", false, "enable debug mode")
+    pulse        = flag.Int("pulseSeconds", 5, "number of seconds between heartbeats")
+
+    store *storage.Store
+)
+
+func statusHandler(w http.ResponseWriter, r *http.Request) {
+    writeJson(w, r, store.Status())
+}
+func addVolumeHandler(w http.ResponseWriter, r *http.Request) {
+    store.AddVolume(r.FormValue("volume"))
+    writeJson(w, r, store.Status())
+}
+func storeHandler(w http.ResponseWriter, r *http.Request) {
+    switch r.Method {
+    case "GET":
+        GetHandler(w, r)
+    case "DELETE":
+        DeleteHandler(w, r)
+    case "POST":
+        PostHandler(w, r)
+    }
+}
+func GetHandler(w http.ResponseWriter, r *http.Request) {
+    n := new(storage.Needle)
+    vid, fid, ext := parseURLPath(r.URL.Path)
+    volumeId, _ := strconv.Atoui64(vid)
+    n.ParsePath(fid)
+
+    if *IsDebug {
+        log.Println("volume", volumeId, "reading", n)
+    }
+    cookie := n.Cookie
+    count, e := store.Read(volumeId, n)
+    if *IsDebug {
+        log.Println("read bytes", count, "error", e)
+    }
+    if n.Cookie != cookie {
+        log.Println("request with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
+        return
+    }
+    if ext != "" {
+        w.Header().Set("Content-Type", mime.TypeByExtension(ext))
+    }
+    w.Write(n.Data)
+}
+func PostHandler(w http.ResponseWriter, r *http.Request) {
+    vid, _, _ := parseURLPath(r.URL.Path)
+    volumeId, e := strconv.Atoui64(vid)
+    if e != nil {
+        writeJson(w, r, e)
+    } else {
+        ret := store.Write(volumeId, storage.NewNeedle(r))
+        m := make(map[string]uint32)
+        m["size"] = ret
+        writeJson(w, r, m)
+    }
+}
+func DeleteHandler(w http.ResponseWriter, r *http.Request) {
+    n := new(storage.Needle)
+    vid, fid, _ := parseURLPath(r.URL.Path)
+    volumeId, _ := strconv.Atoui64(vid)
+    n.ParsePath(fid)
+
+    cookie := n.Cookie
+    count, _ := store.Read(volumeId, n)
+
+    if n.Cookie != cookie {
+        log.Println("delete with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
+        return
+    }
+
+    n.Size = 0
+    store.Write(volumeId, n)
+    m := make(map[string]uint32)
+    m["size"] = uint32(count)
+    writeJson(w, r, m)
+}
+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 parseURLPath(path string) (vid, fid, ext string) {
+    sepIndex := strings.LastIndex(path, "/")
+    commaIndex := strings.LastIndex(path[sepIndex:], ",")
+    if commaIndex <= 0 {
+        log.Println("unknown file id", path[sepIndex+1:])
+        return
+    }
+    dotIndex := strings.LastIndex(path[sepIndex:], ".")
+    vid = path[sepIndex+1 : commaIndex]
+    fid = path[commaIndex+1:]
+    ext = ""
+    if dotIndex > 0 {
+        fid = path[commaIndex+1 : dotIndex]
+        ext = path[dotIndex+1:]
+    }
+    return
+}
+
+func main() {
+    flag.Parse()
+    //TODO: now default to 1G, this value should come from server?
+    store = storage.NewStore(*port, *publicUrl, *chunkFolder, *volumes)
+    defer store.Close()
+    http.HandleFunc("/", storeHandler)
+    http.HandleFunc("/status", statusHandler)
+    http.HandleFunc("/add_volume", addVolumeHandler)
+
+    go func() {
+        for {
+            store.Join(*metaServer)
+            ns := int64(*pulse) * 1e9
+            time.Sleep(ns + rand.Int63()%ns)
+        }
+    }()
+    log.Println("store joined at", *metaServer)
+
+    log.Println("Start storage service at http://127.0.0.1:" + strconv.Itoa(*port), "public url", *publicUrl)
+    e := http.ListenAndServe(":"+strconv.Itoa(*port), nil)
+    if e != nil {
+        log.Fatalf("Fail to start:", e.String())
+    }
+
+}