-
Notifications
You must be signed in to change notification settings - Fork 32
/
logger.go
346 lines (311 loc) · 9.8 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
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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
// Copyright 2020-present Open Networking Foundation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package logging
import (
"bytes"
"net/url"
"os"
"strings"
art "github.com/plar/go-adaptive-radix-tree"
"go.uber.org/zap"
zc "go.uber.org/zap/zapcore"
)
// init initialize logger package data structures
func init() {
dbg = false
// Adds default logger (i.e. root logger)
defaultLoggerName := "root"
loggers = art.New()
cfg := getDefaultConfig(defaultLoggerName, levelToInt(zc.InfoLevel))
rootLogger, _ := cfg.GetZapConfig().Build(zap.AddCallerSkip(1))
defaultAtomLevel := zap.NewAtomicLevelAt(zc.InfoLevel)
defaultEncoder := zc.NewJSONEncoder(cfg.GetZapConfig().EncoderConfig)
defaultWriter := zc.Lock(os.Stdout)
newLogger := rootLogger.WithOptions(
zap.WrapCore(
func(zc.Core) zc.Core {
return zc.NewCore(defaultEncoder, defaultWriter, &defaultAtomLevel)
}))
rootLogger = newLogger.Named(defaultLoggerName)
root = Log{rootLogger, &defaultEncoder, &defaultWriter, defaultLoggerName, defaultAtomLevel}
loggingConf = &loggingConfig{}
if err := Load(loggingConf); err != nil {
dbg.Println(err.Error())
}
Configure(loggingConf.Logging)
}
func getDefaultConfig(name string, level Level) LoggerConfig {
cfg := LoggerConfig{}
cfg.SetEncoding("json").
SetLevel(level).
SetOutputPaths([]string{"stdout"}).
SetErrorOutputPaths([]string{"stderr"}).
SetECMsgKey("msg").
SetECLevelKey("level").
SetECEncoderCaller("caller", zc.ShortCallerEncoder).
SetECTimeKey("ts").
SetECTimeEncoder(zc.ISO8601TimeEncoder).
SetECEncodeLevel(zc.CapitalLevelEncoder).
SetName(name).
Build()
return cfg
}
// AddConfiguredLoggers adds configured loggers
func AddConfiguredLoggers(config Config) {
dbg.Println("Add configured loggers %s", config.Loggers)
loggersList := config.Loggers
if len(loggersList) == 0 {
dbg.Println("Config file is empty or not loaded properly")
return
}
sinks := GetSinks(config)
for _, logger := range loggersList {
loggerSinkInfo, found := ContainSink(sinks, logger.Sink)
if found {
switch loggerSinkInfo._type {
case Kafka.String():
err := zap.RegisterSink("kafka", InitSink)
if err != nil {
dbg.Println("Kafka Sink cannot be registered %s", err)
}
var urls []SinkURL
var rawQuery bytes.Buffer
if loggerSinkInfo.topic != "" {
rawQuery.WriteString("topic=")
rawQuery.WriteString(loggerSinkInfo.topic)
dbg.Println(rawQuery.String())
}
if loggerSinkInfo.key != "" {
rawQuery.WriteString("&")
rawQuery.WriteString("key=")
rawQuery.WriteString(loggerSinkInfo.key)
}
urlInfo := SinkURL{
URL: url.URL{Scheme: Kafka.String(), Host: loggerSinkInfo.uri, RawQuery: rawQuery.String()},
}
urls = append(urls, urlInfo)
cfg := LoggerConfig{}
cfg.SetEncoding(logger.Encoding).
SetLevel(StringToInt(strings.ToUpper(logger.Level))).
SetSinkURLs(urls).
SetName(logger.Name).
SetECMsgKey("msg").
SetECLevelKey("level").
SetECTimeKey("ts").
SetECTimeEncoder(zc.ISO8601TimeEncoder).
SetECEncodeLevel(zc.CapitalLevelEncoder).
Build()
cfg.GetLogger()
case Stdout.String():
cfg := LoggerConfig{}
cfg.SetEncoding(logger.Encoding).
SetLevel(StringToInt(strings.ToUpper(logger.Level))).
SetOutputPaths([]string{Stdout.String()}).
SetName(logger.Name).
SetECMsgKey("msg").
SetECLevelKey("level").
SetECTimeKey("ts").
SetECTimeEncoder(zc.ISO8601TimeEncoder).
SetECEncodeLevel(zc.CapitalLevelEncoder).
Build()
cfg.GetLogger()
}
}
}
}
// Configure configures logging with the given configuration
func Configure(config Config) {
AddConfiguredLoggers(config)
}
// SetLevel defines a new logger level and propagate the change its children
func (l *Log) SetLevel(level Level) {
newLevel := intToAtomicLevel(level)
l.level.SetLevel(newLevel.Level())
dbg.Println("Logger %s writer, encoder, stdlogger memory addresses are 0X%08x, 0X%08x, 0X%08x", l.name, &l.writer, &l.encoder, &l.stdLogger)
loggers.ForEachPrefix(art.Key(l.name), func(node art.Node) bool {
if node.Key() != nil {
loggerNode := node.Value().(*Log)
loggerNode.level.SetLevel(newLevel.Level())
}
return true
})
}
// GetKey returns a key object of radix tree
func GetKey(name string) art.Key {
return art.Key(name)
}
func assignParentLevelLogger(name string) *Log {
parentNames := findParentsNames(name)
for _, parentName := range parentNames {
parentLogger, found := loggers.Search(art.Key(parentName))
if found {
logger := parentLogger.(Log)
core := logger.stdLogger.Core()
zapLogger := zap.New(core).Named(name)
logger.stdLogger = zapLogger
loggers.Insert(art.Key(name), &logger)
return &logger
}
}
root := GetDefaultLogger()
core := root.stdLogger.Core()
zapLogger := zap.New(core).Named(name)
root.stdLogger = zapLogger
loggers.Insert(art.Key(name), &root)
return &root
}
// FindLogger :
func FindLogger(names ...string) (*Log, bool) {
name := buildTreeName(names...)
value, found := GetLoggers().Search(GetKey(name))
if found {
dbg.Println("found logger: %s", names)
return value.(*Log), found
}
return &Log{}, found
}
// GetLogger gets a logger based on a give name
func GetLogger(names ...string) *Log {
name := buildTreeName(names...)
value, found := GetLoggers().Search(GetKey(name))
if found {
dbg.Println("found logger: %s", names)
return value.(*Log)
}
dbg.Println("not found logger: %s, creating it", name)
return AddLogger(InfoLevel, names...)
}
// GetLogger :
func (c *LoggerConfig) GetLogger() *Log {
dbg.Println("Get Configured Logger: %s", c.zapConfig.EncoderConfig.NameKey)
level := c.zapConfig.Level.Level().String()
name := c.zapConfig.EncoderConfig.NameKey
if level == "" {
return assignParentLevelLogger(name)
}
atomLevel := zap.AtomicLevel{}
switch level {
case zc.InfoLevel.String():
atomLevel = zap.NewAtomicLevelAt(zc.InfoLevel)
case zc.DebugLevel.String():
atomLevel = zap.NewAtomicLevelAt(zc.DebugLevel)
case zc.ErrorLevel.String():
atomLevel = zap.NewAtomicLevelAt(zc.ErrorLevel)
case zc.PanicLevel.String():
atomLevel = zap.NewAtomicLevelAt(zc.PanicLevel)
case zc.FatalLevel.String():
atomLevel = zap.NewAtomicLevelAt(zc.FatalLevel)
case zc.WarnLevel.String():
atomLevel = zap.NewAtomicLevelAt(zc.WarnLevel)
}
sinkURLs := c.GetSinkURLs()
var urls []string
if len(sinkURLs) > 0 {
for _, url := range sinkURLs {
urls = append(urls, url.String())
dbg.Println(url.String())
}
ws, _, err := zap.Open(urls...)
if err != nil {
return &Log{}
}
cfg := c.zapConfig
configLogger, _ := cfg.Build(zap.AddCallerSkip(1))
encoder := zc.NewJSONEncoder(cfg.EncoderConfig)
newLogger := configLogger.WithOptions(
zap.WrapCore(
func(zc.Core) zc.Core {
return zc.NewCore(encoder, ws, &atomLevel)
}))
configLogger = newLogger.Named(name)
logger := Log{configLogger, &encoder, &ws, name, atomLevel}
loggers.Insert(art.Key(name), &logger)
return &logger
}
cfg := c.zapConfig
configLogger, _ := cfg.Build(zap.AddCallerSkip(1))
encoder := zc.NewJSONEncoder(cfg.EncoderConfig)
writer := zc.Lock(os.Stdout)
newLogger := configLogger.WithOptions(
zap.WrapCore(
func(zc.Core) zc.Core {
return zc.NewCore(encoder, writer, &atomLevel)
}))
configLogger = newLogger.Named(name)
logger := Log{configLogger, &encoder, &writer, name, atomLevel}
loggers.Insert(art.Key(name), &logger)
return &logger
}
// SetLevel change level of a logger and propagates the change to its children
func SetLevel(level Level, names ...string) {
name := buildTreeName(names...)
loggers.ForEachPrefix(art.Key(name), func(node art.Node) bool {
if node.Key() != nil {
loggerNode := node.Value().(*Log)
newLevel := intToAtomicLevel(level)
loggerNode.level.SetLevel(newLevel.Level())
}
return true
})
}
// AddLogger adds a logger based on a given level and a hierarchy of names
func AddLogger(level Level, names ...string) *Log {
name := buildTreeName(names...)
if level.String() == "" {
return assignParentLevelLogger(name)
}
atomLevel := zap.AtomicLevel{}
var internalLevel Level
switch level {
case InfoLevel:
atomLevel = zap.NewAtomicLevelAt(zc.InfoLevel)
internalLevel = InfoLevel
case DebugLevel:
atomLevel = zap.NewAtomicLevelAt(zc.DebugLevel)
internalLevel = DebugLevel
case ErrorLevel:
atomLevel = zap.NewAtomicLevelAt(zc.ErrorLevel)
internalLevel = ErrorLevel
case PanicLevel:
atomLevel = zap.NewAtomicLevelAt(zc.PanicLevel)
internalLevel = PanicLevel
case FatalLevel:
atomLevel = zap.NewAtomicLevelAt(zc.FatalLevel)
internalLevel = FatalLevel
case WarnLevel:
atomLevel = zap.NewAtomicLevelAt(zc.WarnLevel)
internalLevel = WarnLevel
}
cfg := getDefaultConfig(name, internalLevel)
configLogger, _ := cfg.GetZapConfig().Build(zap.AddCallerSkip(1))
defaultEncoder := zc.NewJSONEncoder(cfg.GetZapConfig().EncoderConfig)
defaultWriter := zc.Lock(os.Stdout)
newLogger := configLogger.WithOptions(
zap.WrapCore(
func(zc.Core) zc.Core {
return zc.NewCore(defaultEncoder, defaultWriter, &atomLevel)
}))
configLogger = newLogger.Named(name)
logger := Log{configLogger, &defaultEncoder, &defaultWriter, name, atomLevel}
loggers.Insert(art.Key(name), &logger)
return &logger
}
// GetLoggers get loggers radix tree
func GetLoggers() art.Tree {
return loggers
}
// GetDefaultLogger gets the default logger
func GetDefaultLogger() Log {
return root
}