/
logger.go
73 lines (58 loc) · 1.43 KB
/
logger.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
package wenex
import (
"github.com/nexcode/joneva"
"io"
"log"
"os"
"path"
"sync"
)
// LogWriter used to connect custom loggers to wenex
type LogWriter interface {
GetWriter(string) (io.Writer, error)
}
func NewLogger(config *joneva.Joneva, logWriter LogWriter) (func(string) *log.Logger, error) {
defaultName, err := config.String("logger.defaultName")
if err != nil {
return nil, err
}
if defaultName == "" {
return nil, ErrDefaultLogEmpty
}
namePrefix, err := config.String("logger.namePrefix")
if err != nil {
return nil, err
}
usePrefix, err := config.String("logger.usePrefix")
if err != nil {
return nil, err
}
useFlag, err := config.Float64("logger.useFlag")
if err != nil {
return nil, err
}
var mutex sync.Mutex
loggers := make(map[string]*log.Logger)
f := func(name string) *log.Logger {
mutex.Lock()
defer mutex.Unlock()
if logger, ok := loggers[name]; ok {
return logger
}
var writer io.Writer
if logWriter == nil {
if err = os.MkdirAll(path.Dir(namePrefix+name), 0755); err != nil {
return loggers[""]
}
if writer, err = os.OpenFile(namePrefix+name+".log", os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644); err != nil {
return loggers[""]
}
} else if writer, err = logWriter.GetWriter(namePrefix + name); err != nil {
return loggers[""]
}
loggers[name] = log.New(writer, usePrefix, int(useFlag))
return loggers[name]
}
loggers[""] = f(defaultName)
return f, err
}