mirror of
https://gitee.com/rainbond/Rainbond.git
synced 2024-12-01 03:07:51 +08:00
135 lines
3.5 KiB
Go
135 lines
3.5 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 monitormessage
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import (
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"fmt"
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"net"
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"strconv"
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"strings"
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"time"
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"github.com/Sirupsen/logrus"
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"github.com/goodrain/rainbond/discover"
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"github.com/goodrain/rainbond/discover/config"
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"github.com/prometheus/common/log"
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)
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//UDPServer udp server
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type UDPServer struct {
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ListenerHost string
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ListenerPort int
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eventServerEndpoint []string
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client net.Conn
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etcdEndpoints []string
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}
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//CreateUDPServer create udpserver
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func CreateUDPServer(lisHost string, lisPort int, etcdEndpoints []string) *UDPServer {
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return &UDPServer{
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ListenerHost: lisHost,
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ListenerPort: lisPort,
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etcdEndpoints: etcdEndpoints,
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}
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}
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//Start start
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func (u *UDPServer) Start() error {
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dis, err := discover.GetDiscover(config.DiscoverConfig{EtcdClusterEndpoints: u.etcdEndpoints})
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if err != nil {
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return err
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}
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dis.AddProject("event_log_event_udp", u)
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if err := u.server(); err != nil {
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return err
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}
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return nil
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}
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//UpdateEndpoints update event server address
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func (u *UDPServer) UpdateEndpoints(endpoints ...*config.Endpoint) {
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var eventServerEndpoint []string
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for _, e := range endpoints {
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eventServerEndpoint = append(eventServerEndpoint, e.URL)
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u.eventServerEndpoint = eventServerEndpoint
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}
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if len(u.eventServerEndpoint) > 0 {
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for i := range u.eventServerEndpoint {
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info := strings.Split(u.eventServerEndpoint[i], ":")
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if len(info) == 2 {
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dip := net.ParseIP(info[0])
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port, err := strconv.Atoi(info[1])
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if err != nil {
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continue
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}
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srcAddr := &net.UDPAddr{IP: net.IPv4zero, Port: 0}
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dstAddr := &net.UDPAddr{IP: dip, Port: port}
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conn, err := net.DialUDP("udp", srcAddr, dstAddr)
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if err != nil {
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logrus.Error(err)
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continue
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}
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logrus.Infof("Update event server address is %s", u.eventServerEndpoint[i])
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u.client = conn
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break
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}
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}
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}
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}
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//Error
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func (u *UDPServer) Error(err error) {
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}
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//Server 服务
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func (u *UDPServer) server() error {
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listener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP(u.ListenerHost), Port: u.ListenerPort})
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if err != nil {
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fmt.Println(err)
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return err
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}
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log.Infof("UDP Server Listener: %s", listener.LocalAddr().String())
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buf := make([]byte, 65535)
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go func() {
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defer listener.Close()
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for {
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n, _, err := listener.ReadFromUDP(buf)
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if err != nil {
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logrus.Errorf("read 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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u.handlePacket(buf[0:n])
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}
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}()
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return nil
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}
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func (u *UDPServer) handlePacket(packet []byte) {
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lines := strings.Split(string(packet), "\n")
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for _, line := range lines {
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if line != "" && u.client != nil {
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u.client.Write([]byte(line))
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}
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}
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}
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