mirror of
https://gitee.com/rainbond/Rainbond.git
synced 2024-12-03 04:07:51 +08:00
143 lines
4.0 KiB
Go
143 lines
4.0 KiB
Go
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// RAINBOND, Application Management Platform
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// Copyright (C) 2014-2017 Goodrain Co., Ltd.
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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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"github.com/goodrain/rainbond/pkg/eventlog/conf"
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"github.com/goodrain/rainbond/pkg/eventlog/store"
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"time"
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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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zmq4 "github.com/pebbe/zmq4"
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)
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//MonitorMessageServer 监控实时数据接受服务
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type MonitorMessageServer struct {
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conf conf.MonitorMessageServerConf
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log *logrus.Entry
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cancel func()
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context context.Context
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server *zmq4.Socket
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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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}
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//NewMonitorMessageServer 创建zmq sub
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func NewMonitorMessageServer(conf conf.MonitorMessageServerConf, log *logrus.Entry, storeManager store.Manager) (*MonitorMessageServer, error) {
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ctx, cancel := context.WithCancel(context.Background())
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s := &MonitorMessageServer{
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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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server, err := zmq4.NewSocket(zmq4.SUB)
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server.SetSubscribe(conf.SubSubscribe)
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if err != nil {
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s.log.Error("create rep zmq socket error.", err.Error())
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return nil, err
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}
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for _, add := range conf.SubAddress {
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server.Connect(add)
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s.log.Infof("Monitor message server sub %s", add)
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}
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s.server = server
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s.messageChan = s.storemanager.MonitorMessageChan()
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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 *MonitorMessageServer) Serve() {
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s.handleMessage()
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}
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//Stop 停止
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func (s *MonitorMessageServer) Stop() {
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s.cancel()
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s.log.Info("receive event message server stop")
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}
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func (s *MonitorMessageServer) handleMessage() {
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chQuit := make(chan interface{})
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chErr := make(chan error, 2)
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channel := make(chan [][]byte, s.conf.CacheMessageSize)
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newServerListen := func(sock *zmq4.Socket, channel chan [][]byte) {
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socketHandler := func(state zmq4.State) error {
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msgs, err := sock.RecvMessageBytes(0)
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if err != nil {
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s.log.Error("server receive message error.", err.Error())
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return err
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}
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s.messageChan <- msgs
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return nil
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}
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quitHandler := func(interface{}) error {
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close(channel)
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s.log.Infof("Event message receive Server quit.")
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return nil
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}
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reactor := zmq4.NewReactor()
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reactor.AddSocket(sock, zmq4.POLLIN, socketHandler)
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reactor.AddChannel(chQuit, 1, quitHandler)
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err := reactor.Run(100 * time.Millisecond)
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chErr <- err
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}
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go newServerListen(s.server, channel)
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func() {
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for !s.stopReceiveMessage {
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select {
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case msg := <-channel:
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s.messageChan <- msg
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case <-s.context.Done():
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s.log.Debug("handle message core begin close.")
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close(chQuit)
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s.stopReceiveMessage = true
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// close(s.messageChan)
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}
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}
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}()
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s.log.Info("Handle message core stop.")
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}
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type event struct {
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Name string `json:"name"`
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Data []interface{} `json:"data"`
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Update string `json:"update_time"`
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}
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//ListenError listen error chan
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func (s *MonitorMessageServer) ListenError() chan error {
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return s.listenErr
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}
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