mirror of
https://gitee.com/rainbond/Rainbond.git
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109 lines
3.2 KiB
Go
109 lines
3.2 KiB
Go
// Copyright (C) 2014-2018 Goodrain Co., Ltd.
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// RAINBOND, Application Management Platform
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version. For any non-GPL usage of Rainbond,
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// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
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// must be obtained first.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package entry
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import (
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"errors"
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"fmt"
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"net"
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"time"
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"github.com/goodrain/rainbond/eventlog/conf"
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"github.com/goodrain/rainbond/eventlog/store"
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"golang.org/x/net/context"
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"sync"
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"github.com/sirupsen/logrus"
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)
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//NMonitorMessageServer 新性能分析实时数据接受服务
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type NMonitorMessageServer struct {
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conf conf.NewMonitorMessageServerConf
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log *logrus.Entry
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cancel func()
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context context.Context
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storemanager store.Manager
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messageChan chan []byte
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listenErr chan error
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serverLock sync.Mutex
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stopReceiveMessage bool
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listener *net.UDPConn
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}
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//NewNMonitorMessageServer 创建UDP服务端
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func NewNMonitorMessageServer(conf conf.NewMonitorMessageServerConf, log *logrus.Entry, storeManager store.Manager) (*NMonitorMessageServer, error) {
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ctx, cancel := context.WithCancel(context.Background())
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s := &NMonitorMessageServer{
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conf: conf,
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log: log,
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cancel: cancel,
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context: ctx,
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storemanager: storeManager,
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listenErr: make(chan error),
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}
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listener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP(conf.ListenerHost), Port: conf.ListenerPort})
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if err != nil {
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fmt.Println(err)
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return nil, err
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}
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log.Infof("UDP Server Listener: %s", listener.LocalAddr().String())
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s.listener = listener
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s.messageChan = s.storemanager.NewMonitorMessageChan()
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if s.messageChan == nil {
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return nil, errors.New("receive monitor message server can not get store message chan ")
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}
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return s, nil
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}
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//Serve 执行
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func (s *NMonitorMessageServer) Serve() {
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s.handleMessage()
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}
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//Stop 停止
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func (s *NMonitorMessageServer) Stop() {
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s.cancel()
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s.log.Info("receive new monitor message server stop")
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}
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func (s *NMonitorMessageServer) handleMessage() {
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buf := make([]byte, 65535)
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defer s.listener.Close()
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s.log.Infoln("start receive monitor message by udp")
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for {
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n, _, err := s.listener.ReadFromUDP(buf)
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if err != nil {
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logrus.Errorf("read new monitor message from udp error,%s", err.Error())
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time.Sleep(time.Second * 2)
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continue
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}
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// fix issues https://github.com/golang/go/issues/35725
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message := make([]byte, n)
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copy(message, buf[0:n])
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s.messageChan <- message
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}
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}
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//ListenError listen error chan
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func (s *NMonitorMessageServer) ListenError() chan error {
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return s.listenErr
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}
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