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zerolog_adapter.go
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/
zerolog_adapter.go
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package log
import (
"os"
"github.com/rs/zerolog"
)
// Interface assertions
var _ Logger = (*zeroLogger)(nil)
// zeroLogger is used as an adapter which contains a set of loggers,
// each logger corresponds to an "Appender".
type zeroLogger struct {
loggers map[string]*zerolog.Logger
}
func (zl *zeroLogger) SetOutputFlags(flags *OutputFlags) {
zerolog.CallerFieldName = flags.CallerFieldName
zerolog.ErrorFieldName = flags.ErrorFieldName
zerolog.LevelFieldName = flags.LevelFieldName
zerolog.MessageFieldName = flags.MessageFieldName
zerolog.TimestampFieldName = flags.TimestampFieldName
}
func (zl *zeroLogger) SetGlobalLogLevel(level Level) {
zerolog.SetGlobalLevel(parseLogLevel(level))
}
func (zl *zeroLogger) SetTimeFieldFormat(format string) {
zerolog.TimeFieldFormat = format
}
func (zl *zeroLogger) Debug(msg string) {
for _, l := range zl.loggers {
l.Debug().Msg(msg)
}
}
func (zl *zeroLogger) Info(msg string) {
for _, l := range zl.loggers {
l.Info().Msg(msg)
}
}
func (zl *zeroLogger) Warn(msg string) {
for _, l := range zl.loggers {
l.Warn().Msg(msg)
}
}
func (zl *zeroLogger) Error(msg string) {
for _, l := range zl.loggers {
l.Error().Msg(msg)
}
}
func (zl *zeroLogger) Fatal(msg string) {
for _, l := range zl.loggers {
l.Fatal().Msg(msg)
}
}
func (zl *zeroLogger) Panic(msg string) {
for _, l := range zl.loggers {
l.Panic().Msg(msg)
}
}
func (zl *zeroLogger) DebugKV(msg string, keyvals map[string]interface{}) {
for _, l := range zl.loggers {
l.Debug().Fields(keyvals).Msg(msg)
}
}
func (zl *zeroLogger) InfoKV(msg string, keyvals map[string]interface{}) {
for _, l := range zl.loggers {
l.Info().Fields(keyvals).Msg(msg)
}
}
func (zl *zeroLogger) WarnKV(msg string, keyvals map[string]interface{}) {
for _, l := range zl.loggers {
l.Warn().Fields(keyvals).Msg(msg)
}
}
func (zl *zeroLogger) ErrorKV(msg string, keyvals map[string]interface{}) {
for _, l := range zl.loggers {
l.Error().Fields(keyvals).Msg(msg)
}
}
func (zl *zeroLogger) FatalKV(msg string, keyvals map[string]interface{}) {
for _, l := range zl.loggers {
l.Fatal().Fields(keyvals).Msg(msg)
}
}
func (zl *zeroLogger) PanicKV(msg string, keyvals map[string]interface{}) {
for _, l := range zl.loggers {
l.Panic().Fields(keyvals).Msg(msg)
}
}
// buildZeroLogger builds a zeroLogger out of the specified "Config".
func buildZeroLogger(config *Config) Logger {
if !config.Enabled {
return nonLogger{}
}
zerolog.CallerSkipFrameCount = 4
zerologger := &zeroLogger{make(map[string]*zerolog.Logger, len(config.Appenders))}
zerolog.TimeFieldFormat = config.TimeFieldFormat
zerolog.SetGlobalLevel(parseLogLevel(config.GlobalLogLevel))
zerologger.SetOutputFlags(config.OutputFlags)
for s, a := range config.Appenders {
if !a.Enabled {
continue
}
var logger zerolog.Logger
context := zerolog.New(a.Output).Level(parseLogLevel(a.LogLevel)).With().Timestamp()
if a.ShowCaller {
context = context.Caller()
}
if a.ShowHostname {
hostname, err := os.Hostname()
if err != nil {
panic(err)
}
context = context.Str(globalOutputFlags.HostnameFieldName, hostname)
}
logger = context.Logger()
if a.Format == TextFmt {
if a.Output == os.Stdout || a.Output == os.Stderr {
logger = logger.Output(zerolog.ConsoleWriter{Out: a.Output})
} else {
logger = logger.Output(zerolog.ConsoleWriter{Out: a.Output, NoColor: true}).With().Timestamp().Logger()
}
}
zerologger.loggers[s] = &logger
}
return zerologger
}
// parseLogLevel matches our log-level with zerolog's Level.
func parseLogLevel(level Level) zerolog.Level {
switch level {
case DebugLevel:
return zerolog.DebugLevel
case InfoLevel:
return zerolog.InfoLevel
case WarnLevel:
return zerolog.WarnLevel
case ErrorLevel:
return zerolog.ErrorLevel
case FatalLevel:
return zerolog.FatalLevel
case PanicLevel:
return zerolog.PanicLevel
case Disabled:
return zerolog.Disabled
}
return zerolog.Disabled
}