micro/logger/logger.go

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// Package logger provides a log interface
package logger
import (
"context"
)
type ContextAttrFunc func(ctx context.Context) []interface{}
var DefaultContextAttrFuncs []ContextAttrFunc
var (
// DefaultLogger variable
DefaultLogger Logger = NewLogger()
// DefaultLevel used by logger
DefaultLevel = InfoLevel
// DefaultCallerSkipCount used by logger
DefaultCallerSkipCount = 2
)
// Logger is a generic logging interface
type Logger interface {
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// 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{})
// Name returns broker instance name
Name() string
// String returns the type of logger
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String() string
}
// Field contains keyval pair
type Field interface{}
// Info writes msg to default logger on info level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Info(ctx context.Context, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Info(ctx, args...)
}
// Error writes msg to default logger on error level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Error(ctx context.Context, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Error(ctx, args...)
}
// Debug writes msg to default logger on debug level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Debug(ctx context.Context, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Debug(ctx, args...)
}
// Warn writes msg to default logger on warn level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Warn(ctx context.Context, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Warn(ctx, args...)
}
// Trace writes msg to default logger on trace level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Trace(ctx context.Context, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Trace(ctx, args...)
}
// Fatal writes msg to default logger on fatal level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Fatal(ctx context.Context, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Fatal(ctx, args...)
}
// Infof writes formatted msg to default logger on info level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Infof(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Infof(ctx, msg, args...)
}
// Errorf writes formatted msg to default logger on error level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Errorf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Errorf(ctx, msg, args...)
}
// Debugf writes formatted msg to default logger on debug level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Debugf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Debugf(ctx, msg, args...)
}
// Warnf writes formatted msg to default logger on warn level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Warnf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Warnf(ctx, msg, args...)
}
// Tracef writes formatted msg to default logger on trace level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Tracef(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Tracef(ctx, msg, args...)
}
// Fatalf writes formatted msg to default logger on fatal level
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Fatalf(ctx context.Context, msg string, args ...interface{}) {
DefaultLogger.Clone(WithCallerSkipCount(DefaultCallerSkipCount+1)).Fatalf(ctx, msg, args...)
}
// V returns true if passed level enabled in default logger
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func V(level Level) bool {
return DefaultLogger.V(level)
}
// Init initialize logger
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Init(opts ...Option) error {
return DefaultLogger.Init(opts...)
}
// Fields create logger with specific fields
//
// Deprecated: Dont use logger methods directly, use instance of logger to avoid additional allocations
func Fields(fields ...interface{}) Logger {
return DefaultLogger.Fields(fields...)
}