blob: edb149dfa507701df4da60e17891107825d73029 (
plain)
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
|
// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package log
import (
"encoding/json"
"io"
"log"
"net"
)
// ConnWriter implements LoggerInterface.
// it writes messages in keep-live tcp connection.
type ConnWriter struct {
lg *log.Logger
innerWriter io.WriteCloser
ReconnectOnMsg bool `json:"reconnectOnMsg"`
Reconnect bool `json:"reconnect"`
Net string `json:"net"`
Addr string `json:"addr"`
Level int `json:"level"`
}
// NewConn creates new ConnWrite returning as LoggerInterface.
func NewConn() LoggerInterface {
conn := new(ConnWriter)
conn.Level = TRACE
return conn
}
// Init inits connection writer with json config.
// json config only need key "level".
func (cw *ConnWriter) Init(jsonconfig string) error {
return json.Unmarshal([]byte(jsonconfig), cw)
}
// WriteMsg writes message in connection.
// if connection is down, try to re-connect.
func (cw *ConnWriter) WriteMsg(msg string, skip, level int) error {
if cw.Level > level {
return nil
}
if cw.neededConnectOnMsg() {
if err := cw.connect(); err != nil {
return err
}
}
if cw.ReconnectOnMsg {
defer cw.innerWriter.Close()
}
cw.lg.Println(msg)
return nil
}
// Flush no things for this implementation
func (cw *ConnWriter) Flush() {
}
// Destroy destroy connection writer and close tcp listener.
func (cw *ConnWriter) Destroy() {
if cw.innerWriter == nil {
return
}
cw.innerWriter.Close()
}
func (cw *ConnWriter) connect() error {
if cw.innerWriter != nil {
cw.innerWriter.Close()
cw.innerWriter = nil
}
conn, err := net.Dial(cw.Net, cw.Addr)
if err != nil {
return err
}
if tcpConn, ok := conn.(*net.TCPConn); ok {
tcpConn.SetKeepAlive(true)
}
cw.innerWriter = conn
cw.lg = log.New(conn, "", log.Ldate|log.Ltime)
return nil
}
func (cw *ConnWriter) neededConnectOnMsg() bool {
if cw.Reconnect {
cw.Reconnect = false
return true
}
if cw.innerWriter == nil {
return true
}
return cw.ReconnectOnMsg
}
func init() {
Register("conn", NewConn)
}
|
