Files
graphql-monitoring-proxy/logging/logging.go
T
2024-06-12 11:54:03 +01:00

124 lines
2.8 KiB
Go

package libpack_logging
import (
"io"
"os"
"sync"
"time"
"github.com/gookit/goutil/envutil"
"github.com/rs/zerolog"
)
type LogConfig struct {
logger zerolog.Logger
}
var (
baseLogger zerolog.Logger
eventPool = sync.Pool{
New: func() interface{} {
return new(zerolog.Event)
},
}
fieldMapPool = sync.Pool{
New: func() interface{} {
return make(map[string]interface{})
},
}
)
func init() {
zerolog.TimeFieldFormat = time.RFC3339
zerolog.MessageFieldName = "short_message"
zerolog.TimestampFieldName = "timestamp"
zerolog.LevelFieldName = "level"
zerolog.LevelFatalValue = "critical"
baseLogger = zerolog.New(os.Stdout).With().Timestamp().Logger()
switch logLevel := envutil.Getenv("LOG_LEVEL", "info"); logLevel {
case "debug":
baseLogger = baseLogger.Level(zerolog.DebugLevel)
case "warn":
baseLogger = baseLogger.Level(zerolog.WarnLevel)
case "error":
baseLogger = baseLogger.Level(zerolog.ErrorLevel)
default:
baseLogger = baseLogger.Level(zerolog.InfoLevel)
}
}
func NewLogger() *LogConfig {
return &LogConfig{logger: baseLogger}
}
func (lw *LogConfig) log(w io.Writer, level zerolog.Level, message string, fields map[string]interface{}) {
logger := lw.logger.Output(w)
event := logger.WithLevel(level).CallerSkipFrame(3)
for k, val := range fields {
switch v := val.(type) {
case string:
event = event.Str(k, v)
case int:
event = event.Int(k, v)
case float64:
event = event.Float64(k, v)
default:
event = event.Interface(k, val)
}
}
event.Msg(message)
}
func (lw *LogConfig) logWithLevel(level zerolog.Level, message string, fields map[string]interface{}) {
if lw.logger.GetLevel() > level {
return
}
if lw.logger.GetLevel() <= level {
w := os.Stdout
if level >= zerolog.ErrorLevel {
w = os.Stderr
}
lw.log(w, level, message, fields)
}
}
func (lw *LogConfig) Debug(message string, fields map[string]interface{}) {
lw.logWithLevel(zerolog.DebugLevel, message, fields)
}
func (lw *LogConfig) Info(message string, fields map[string]interface{}) {
lw.logWithLevel(zerolog.InfoLevel, message, fields)
}
func (lw *LogConfig) Warning(message string, fields map[string]interface{}) {
lw.logWithLevel(zerolog.WarnLevel, message, fields)
}
func (lw *LogConfig) Error(message string, fields map[string]interface{}) {
lw.logWithLevel(zerolog.ErrorLevel, message, fields)
}
func (lw *LogConfig) Critical(message string, fields map[string]interface{}) {
lw.logWithLevel(zerolog.FatalLevel, message, fields)
os.Exit(1)
}
// Helper function to get a new fields map from the pool
func getFieldsMap() map[string]interface{} {
return fieldMapPool.Get().(map[string]interface{})
}
// Helper function to put a used fields map back into the pool
func putFieldsMap(fields map[string]interface{}) {
for k := range fields {
delete(fields, k)
}
fieldMapPool.Put(fields)
}