// GET: /render?target=my.key&from=-1h[&to=...&jsonp=...]
func (h *RenderHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case "GET":
glog.Infof("%v\n", r.URL)
err := h.parseQuery(r)
if err != nil {
glog.Warningln(err)
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
h.jsonResponse(w, api.Eval(h.target, h.from, h.to, &metrics.Api{h.maxDataPoints}))
glog.Flush()
default:
http.Error(w, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
}
}
// Handle TCP Connections
func handle(conn net.Conn) {
glog.Infof("Connection: %s -> %s\n", conn.RemoteAddr(), conn.LocalAddr())
defer func() {
glog.Infof("Closing connection: %s\n", conn.RemoteAddr())
conn.Close()
glog.Flush()
}()
scanner := bufio.NewScanner(conn)
for scanner.Scan() {
if m := strings.Split(scanner.Text(), " "); len(m) > 2 {
if ts, err := strconv.ParseInt(m[2], 10, 0); err != nil {
glog.Warningln(err)
continue
} else {
metrics.Add(m[0], m[1], ts)
}
}
}
if err := scanner.Err(); err != nil {
glog.Errorln(err)
}
}