Rainbond/eventlog/entry/new_monitor_message_server.go
2020-09-06 11:09:48 +08:00

106 lines
3.1 KiB
Go

// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package entry
import (
"errors"
"fmt"
"net"
"time"
"github.com/goodrain/rainbond/eventlog/conf"
"github.com/goodrain/rainbond/eventlog/store"
"golang.org/x/net/context"
"sync"
"github.com/sirupsen/logrus"
)
//NMonitorMessageServer 新性能分析实时数据接受服务
type NMonitorMessageServer struct {
conf conf.NewMonitorMessageServerConf
log *logrus.Entry
cancel func()
context context.Context
storemanager store.Manager
messageChan chan []byte
listenErr chan error
serverLock sync.Mutex
stopReceiveMessage bool
listener *net.UDPConn
}
//NewNMonitorMessageServer 创建UDP服务端
func NewNMonitorMessageServer(conf conf.NewMonitorMessageServerConf, log *logrus.Entry, storeManager store.Manager) (*NMonitorMessageServer, error) {
ctx, cancel := context.WithCancel(context.Background())
s := &NMonitorMessageServer{
conf: conf,
log: log,
cancel: cancel,
context: ctx,
storemanager: storeManager,
listenErr: make(chan error),
}
listener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP(conf.ListenerHost), Port: conf.ListenerPort})
if err != nil {
fmt.Println(err)
return nil, err
}
log.Infof("UDP Server Listener: %s", listener.LocalAddr().String())
s.listener = listener
s.messageChan = s.storemanager.NewMonitorMessageChan()
if s.messageChan == nil {
return nil, errors.New("receive monitor message server can not get store message chan ")
}
return s, nil
}
//Serve 执行
func (s *NMonitorMessageServer) Serve() {
s.handleMessage()
}
//Stop 停止
func (s *NMonitorMessageServer) Stop() {
s.cancel()
s.log.Info("receive new monitor message server stop")
}
func (s *NMonitorMessageServer) handleMessage() {
buf := make([]byte, 65535)
defer s.listener.Close()
s.log.Infoln("start receive monitor message by udp")
for {
n, _, err := s.listener.ReadFromUDP(buf)
if err != nil {
logrus.Errorf("read new monitor message from udp error,%s", err.Error())
time.Sleep(time.Second * 2)
continue
}
s.messageChan <- buf[0:n]
}
}
//ListenError listen error chan
func (s *NMonitorMessageServer) ListenError() chan error {
return s.listenErr
}