micro/logger/logger.go
Vasiliy Tolstov 2fbaa26f0f logger: add Clone method
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2021-08-30 16:21:01 +03:00

141 lines
4.3 KiB
Go

// Package logger provides a log interface
package logger
import (
"context"
"os"
)
var (
// DefaultLogger variable
DefaultLogger Logger = NewLogger(WithLevel(ParseLevel(os.Getenv("MICRO_LOG_LEVEL"))))
// DefaultLevel used by logger
DefaultLevel Level = InfoLevel
// DefaultCallerSkipCount used by logger
DefaultCallerSkipCount = 2
)
// Logger is a generic logging interface
type Logger interface {
// Init initialises options
Init(opts ...Option) error
// Clone create logger copy with new options
Clone(opts ...Option) Logger
// V compare provided verbosity level with current log level
V(level Level) bool
// Level sets the log level for logger
Level(level Level)
// The Logger options
Options() Options
// Fields set fields to always be logged with keyval pairs
Fields(fields ...interface{}) Logger
// Info level message
Info(ctx context.Context, args ...interface{})
// Trace level message
Trace(ctx context.Context, args ...interface{})
// Debug level message
Debug(ctx context.Context, args ...interface{})
// Warn level message
Warn(ctx context.Context, args ...interface{})
// Error level message
Error(ctx context.Context, args ...interface{})
// Fatal level message
Fatal(ctx context.Context, args ...interface{})
// Infof level message
Infof(ctx context.Context, msg string, args ...interface{})
// Tracef level message
Tracef(ctx context.Context, msg string, args ...interface{})
// Debug level message
Debugf(ctx context.Context, msg string, args ...interface{})
// Warn level message
Warnf(ctx context.Context, msg string, args ...interface{})
// Error level message
Errorf(ctx context.Context, msg string, args ...interface{})
// Fatal level message
Fatalf(ctx context.Context, msg string, args ...interface{})
// Log logs message with needed level
Log(ctx context.Context, level Level, args ...interface{})
// Logf logs message with needed level
Logf(ctx context.Context, level Level, msg string, args ...interface{})
// String returns the name of logger
String() string
}
// Field contains keyval pair
type Field interface{}
// Info writes msg to default logger on info level
func Info(ctx context.Context, args ...interface{}) {
DefaultLogger.Info(ctx, args...)
}
// Error writes msg to default logger on error level
func Error(ctx context.Context, args ...interface{}) {
DefaultLogger.Error(ctx, args...)
}
// Debug writes msg to default logger on debug level
func Debug(ctx context.Context, args ...interface{}) {
DefaultLogger.Debug(ctx, args...)
}
// Warn writes msg to default logger on warn level
func Warn(ctx context.Context, args ...interface{}) {
DefaultLogger.Warn(ctx, args...)
}
// Trace writes msg to default logger on trace level
func Trace(ctx context.Context, args ...interface{}) {
DefaultLogger.Trace(ctx, args...)
}
// Fatal writes msg to default logger on fatal level
func Fatal(ctx context.Context, args ...interface{}) {
DefaultLogger.Fatal(ctx, args...)
}
// Infof writes formatted msg to default logger on info level
func Infof(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Infof(ctx, msg, args...)
}
// Errorf writes formatted msg to default logger on error level
func Errorf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Errorf(ctx, msg, args...)
}
// Debugf writes formatted msg to default logger on debug level
func Debugf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Debugf(ctx, msg, args...)
}
// Warnf writes formatted msg to default logger on warn level
func Warnf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Warnf(ctx, msg, args...)
}
// Tracef writes formatted msg to default logger on trace level
func Tracef(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Tracef(ctx, msg, args...)
}
// Fatalf writes formatted msg to default logger on fatal level
func Fatalf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Fatalf(ctx, msg, args...)
}
// V returns true if passed level enabled in default logger
func V(level Level) bool {
return DefaultLogger.V(level)
}
// Init initialize logger
func Init(opts ...Option) error {
return DefaultLogger.Init(opts...)
}
// Fields create logger with specific fields
func Fields(fields ...interface{}) Logger {
return DefaultLogger.Fields(fields...)
}