func socketTelnetHandle(conn net.Conn) {
defer conn.Close()
items := []*cmodel.MetaData{}
buf := bufio.NewReader(conn)
cfg := g.Config()
timeout := time.Duration(cfg.Socket.Timeout) * time.Second
for {
conn.SetReadDeadline(time.Now().Add(timeout))
line, err := buf.ReadString('\n')
if err != nil {
break
}
line = strings.Trim(line, "\n")
if line == "quit" {
break
}
if line == "" {
continue
}
t := strings.Fields(line)
if len(t) < 2 {
continue
}
cmd := t[0]
if cmd != "update" {
continue
}
item, err := convertLine2MetaData(t[1:])
if err != nil {
continue
}
items = append(items, item)
}
// statistics
count := int64(len(items))
pfc.Meter("SocketRecv", count)
pfc.Meter("Recv", count)
if cfg.Transfer.Enabled {
sender.Push2SendQueue(items)
}
return
}
// process new metric values
func RecvMetricValues(args []*cmodel.MetricValue, reply *g.TransferResp, from string) error {
start := time.Now()
reply.ErrInvalid = 0
items := []*cmodel.MetaData{}
for _, v := range args {
if v == nil {
reply.ErrInvalid += 1
continue
}
// 历史遗留问题.
// 老版本agent上报的metric=kernel.hostname的数据,其取值为string类型,现在已经不支持了;所以,这里硬编码过滤掉
if v.Metric == "kernel.hostname" {
reply.ErrInvalid += 1
continue
}
if v.Metric == "" || v.Endpoint == "" {
reply.ErrInvalid += 1
continue
}
if v.Type != g.COUNTER && v.Type != g.GAUGE && v.Type != g.DERIVE {
reply.ErrInvalid += 1
continue
}
if v.Value == "" {
reply.ErrInvalid += 1
continue
}
if v.Step <= 0 {
reply.ErrInvalid += 1
continue
}
if len(v.Metric)+len(v.Tags) > 510 {
reply.ErrInvalid += 1
continue
}
errtags, tags := cutils.SplitTagsString(v.Tags)
if errtags != nil {
reply.ErrInvalid += 1
continue
}
// TODO 呵呵,这里需要再优雅一点
now := start.Unix()
if v.Timestamp <= 0 || v.Timestamp > now*2 {
v.Timestamp = now
}
fv := &cmodel.MetaData{
Metric: v.Metric,
Endpoint: v.Endpoint,
Timestamp: v.Timestamp,
Step: v.Step,
CounterType: v.Type,
Tags: tags, //TODO tags键值对的个数,要做一下限制
}
valid := true
var vv float64
var err error
switch cv := v.Value.(type) {
case string:
vv, err = strconv.ParseFloat(cv, 64)
if err != nil {
valid = false
}
case float64:
vv = cv
case int64:
vv = float64(cv)
default:
valid = false
}
if !valid {
reply.ErrInvalid += 1
continue
}
fv.Value = vv
items = append(items, fv)
}
// statistics
cnt := int64(len(items))
pfc.Meter("Recv", cnt)
if from == "rpc" {
pfc.Meter("RpcRecv", cnt)
} else if from == "http" {
pfc.Meter("HttpRecv", cnt)
}
cfg := g.Config()
if cfg.Transfer.Enabled {
sender.Push2SendQueue(items)
}
reply.Msg = "ok"
reply.Total = len(args)
reply.Latency = (time.Now().UnixNano() - start.UnixNano()) / 1000000
return nil
}