forked from goodrain/rainbond
-
Notifications
You must be signed in to change notification settings - Fork 0
/
udpserver.go
134 lines (118 loc) · 3.48 KB
/
udpserver.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
// 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 monitormessage
import (
"fmt"
"net"
"strconv"
"strings"
"time"
"github.com/Sirupsen/logrus"
"github.com/goodrain/rainbond/discover"
"github.com/goodrain/rainbond/discover/config"
"github.com/prometheus/common/log"
)
//UDPServer udp server
type UDPServer struct {
ListenerHost string
ListenerPort int
eventServerEndpoint []string
client net.Conn
etcdEndpoints []string
}
//CreateUDPServer create udpserver
func CreateUDPServer(lisHost string, lisPort int, etcdEndpoints []string) *UDPServer {
return &UDPServer{
ListenerHost: lisHost,
ListenerPort: lisPort,
etcdEndpoints: etcdEndpoints,
}
}
//Start start
func (u *UDPServer) Start() error {
dis, err := discover.GetDiscover(config.DiscoverConfig{EtcdClusterEndpoints: u.etcdEndpoints})
if err != nil {
return err
}
dis.AddProject("event_log_event_udp", u)
if err := u.server(); err != nil {
return err
}
return nil
}
//UpdateEndpoints update event server address
func (u *UDPServer) UpdateEndpoints(endpoints ...*config.Endpoint) {
var eventServerEndpoint []string
for _, e := range endpoints {
eventServerEndpoint = append(eventServerEndpoint, e.URL)
u.eventServerEndpoint = eventServerEndpoint
}
if len(u.eventServerEndpoint) > 0 {
for i := range u.eventServerEndpoint {
info := strings.Split(u.eventServerEndpoint[i], ":")
if len(info) == 2 {
dip := net.ParseIP(info[0])
port, err := strconv.Atoi(info[1])
if err != nil {
continue
}
srcAddr := &net.UDPAddr{IP: net.IPv4zero, Port: 0}
dstAddr := &net.UDPAddr{IP: dip, Port: port}
conn, err := net.DialUDP("udp", srcAddr, dstAddr)
if err != nil {
logrus.Error(err)
continue
}
logrus.Infof("Update event server address is %s", u.eventServerEndpoint[i])
u.client = conn
break
}
}
}
}
//Error
func (u *UDPServer) Error(err error) {
}
//Server 服务
func (u *UDPServer) server() error {
listener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP(u.ListenerHost), Port: u.ListenerPort})
if err != nil {
fmt.Println(err)
return err
}
log.Infof("UDP Server Listener: %s", listener.LocalAddr().String())
buf := make([]byte, 65535)
go func() {
defer listener.Close()
for {
n, _, err := listener.ReadFromUDP(buf)
if err != nil {
logrus.Errorf("read message from udp error,%s", err.Error())
time.Sleep(time.Second * 2)
continue
}
u.handlePacket(buf[0:n])
}
}()
return nil
}
func (u *UDPServer) handlePacket(packet []byte) {
lines := strings.Split(string(packet), "\n")
for _, line := range lines {
if line != "" && u.client != nil {
u.client.Write([]byte(line))
}
}
}