139 lines
3.1 KiB
Go
139 lines
3.1 KiB
Go
package servlet
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
|
|
"github.com/valyala/fasthttp"
|
|
|
|
logging "git.loafle.net/commons/logging-go"
|
|
"git.loafle.net/commons/server-go"
|
|
css "git.loafle.net/commons/server-go/socket"
|
|
cssw "git.loafle.net/commons/server-go/socket/web"
|
|
occp "git.loafle.net/overflow/commons-go/config/probe"
|
|
ocmd "git.loafle.net/overflow/commons-go/model/data"
|
|
oe "git.loafle.net/overflow/external-go"
|
|
oeg "git.loafle.net/overflow/external-go/grpc"
|
|
oek "git.loafle.net/overflow/external-go/kafka"
|
|
og "git.loafle.net/overflow/gateway"
|
|
)
|
|
|
|
type DataServlet interface {
|
|
cssw.Servlet
|
|
}
|
|
|
|
type DataServlets struct {
|
|
cssw.Servlets
|
|
}
|
|
|
|
func (s *DataServlets) Init(serverCtx server.ServerCtx) error {
|
|
if err := s.Servlets.Init(serverCtx); nil != err {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (s *DataServlets) OnStart(serverCtx server.ServerCtx) error {
|
|
if err := s.Servlets.OnStart(serverCtx); nil != err {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (s *DataServlets) OnStop(serverCtx server.ServerCtx) {
|
|
|
|
s.Servlets.OnStop(serverCtx)
|
|
}
|
|
|
|
func (s *DataServlets) Destroy(serverCtx server.ServerCtx) {
|
|
|
|
s.Servlets.Destroy(serverCtx)
|
|
}
|
|
|
|
func (s *DataServlets) Handshake(servletCtx server.ServletCtx, ctx *fasthttp.RequestCtx) (*fasthttp.ResponseHeader, error) {
|
|
// probe key extraction
|
|
bMethod := ctx.Request.Header.Peek(occp.HTTPRequestHeaderKey_Probe_Method)
|
|
if nil == bMethod {
|
|
return nil, fmt.Errorf("Unexpected probe method: %v", bMethod)
|
|
}
|
|
|
|
method := string(bMethod)
|
|
|
|
switch method {
|
|
case occp.HTTPRequestHeaderValue_Probe_Method_Connect:
|
|
default:
|
|
return nil, fmt.Errorf("Unexpected probe method: %s", method)
|
|
}
|
|
|
|
bProbeKey := ctx.Request.Header.Peek(occp.HTTPRequestHeaderKey_Probe_ProbeKey)
|
|
if nil == bProbeKey {
|
|
return nil, fmt.Errorf("Unexpected probe key : %v", bProbeKey)
|
|
}
|
|
|
|
probeKey := string(bProbeKey)
|
|
|
|
grpcCTX := context.Background()
|
|
_, err := oeg.Exec(grpcCTX, "ProbeService.readByProbeKey", probeKey)
|
|
if nil != err {
|
|
return nil, fmt.Errorf("grpc call Error: %s", err.Error())
|
|
}
|
|
|
|
servletCtx.SetAttribute(og.SessionIDKey, probeKey)
|
|
servletCtx.SetAttribute(og.SessionClientTypeKey, oe.PROBE)
|
|
servletCtx.SetAttribute(og.SessionTargetIDKey, probeKey)
|
|
|
|
return nil, nil
|
|
}
|
|
|
|
func (s *DataServlets) OnConnect(servletCtx server.ServletCtx, conn css.Conn) {
|
|
s.Servlets.OnConnect(servletCtx, conn)
|
|
}
|
|
|
|
func (s *DataServlets) OnDisconnect(servletCtx server.ServletCtx) {
|
|
s.Servlets.OnDisconnect(servletCtx)
|
|
}
|
|
|
|
func (s *DataServlets) Handle(servletCtx server.ServletCtx,
|
|
stopChan <-chan struct{}, doneChan chan<- struct{},
|
|
readChan <-chan css.SocketMessage, writeChan chan<- css.SocketMessage) {
|
|
defer func() {
|
|
doneChan <- struct{}{}
|
|
}()
|
|
|
|
var (
|
|
// messageType int
|
|
message []byte
|
|
err error
|
|
)
|
|
|
|
for {
|
|
select {
|
|
case socketMessage, ok := <-readChan:
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
_, message = socketMessage()
|
|
|
|
m := &ocmd.Metric{}
|
|
err = json.Unmarshal(message, m)
|
|
if nil != err {
|
|
logging.Logger().Error(err)
|
|
break
|
|
}
|
|
|
|
err = oek.Write("metric", []byte(m.SensorID), message)
|
|
if nil != err {
|
|
logging.Logger().Error(err)
|
|
break
|
|
}
|
|
|
|
case <-stopChan:
|
|
return
|
|
}
|
|
}
|
|
}
|