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logger.go
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logger.go
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// Copyright 2018 The cpchain authors
// This file is part of the cpchain library.
//
// The cpchain library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The cpchain library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the cpchain library. If not, see <http://www.gnu.org/licenses/>.
package log
import (
"io"
"sync"
"bitbucket.org/cpchain/chain/commons/log/filename"
"bitbucket.org/cpchain/chain/commons/log/stack"
"github.com/sirupsen/logrus"
)
const errCtx = "Normalized odd number of arguments by adding nil"
const (
PanicLevel = logrus.PanicLevel
FatalLevel = logrus.FatalLevel
ErrorLevel = logrus.ErrorLevel
WarnLevel = logrus.WarnLevel
InfoLevel = logrus.InfoLevel
DebugLevel = logrus.DebugLevel
defaultFilenameHookBaseSkip = 3
)
type (
Level = logrus.Level
Formatter = logrus.Formatter
TextFormatter = logrus.TextFormatter
JSONFormatter = logrus.JSONFormatter
)
type Logger struct {
*logrus.Entry
needSkip bool
once *sync.Once
filenameHook *filename.Hook
}
func New(ctx ...interface{}) *Logger {
var l *Logger
opt := len(ctx)
switch {
case opt == 0:
l = &Logger{
Entry: logrus.NewEntry(logrus.New()),
once: new(sync.Once),
}
case (opt % 2) == 0:
l = &Logger{
Entry: logrus.WithFields(getFields(ctx)),
once: new(sync.Once),
}
default:
logrus.Error("argument number wrong")
return nil
}
l.SetFormatter(&TextFormatter{
FullTimestamp: true,
QuoteEmptyFields: true,
TimestampFormat: termTimeFormat,
})
l.Logger.AddHook(stack.NewHook())
return l
}
func (logger *Logger) skip() {
logger.needSkip = true
}
// ShowFilename show filename and position
func (logger *Logger) ShowFilename() {
logger.once.Do(func() {
logger.filenameHook = filename.NewHook()
if logger.needSkip {
logger.filenameHook.Skip++
}
logger.filenameHook.Skip += defaultFilenameHookBaseSkip
logger.filenameHook.Field = "Line"
// logger.Entry.Logger.Hooks
logger.Entry.Logger.AddHook(logger.filenameHook)
})
}
// SetLevel sets the logger level.
func (logger *Logger) SetLevel(level logrus.Level) {
logger.Logger.SetLevel(level)
}
// GetLevel returns the logger level.
func (logger *Logger) GetLevel() logrus.Level {
return logger.Logger.GetLevel()
}
// SetOutput sets the logger output.
func (logger *Logger) SetOutput(output io.Writer) {
logger.Logger.SetOutput(output)
}
// SetFormatter sets the logger formatter.
func (logger *Logger) SetFormatter(formatter Formatter) {
logger.Logger.SetFormatter(formatter)
}
// Info logs a message at level Info on the standard logger.
func (logger *Logger) Info(msg string, args ...interface{}) {
if logger.Logger.IsLevelEnabled(logrus.InfoLevel) {
if len(args)%2 != 0 {
root.Error(errCtx)
return
}
logger.WithFields(getFields(args...)).Info(msg)
}
}
// Debug logs a message at level Debug on the standard logger.
func (logger *Logger) Debug(msg string, args ...interface{}) {
if logger.Logger.IsLevelEnabled(logrus.DebugLevel) {
if len(args)%2 != 0 {
root.Error(errCtx)
return
}
logger.WithFields(getFields(args...)).Debug(msg)
}
}
// Print logs a message at level Info on the standard logger.
func (logger *Logger) Print(msg string, args ...interface{}) {
if logger.Logger.IsLevelEnabled(logrus.InfoLevel) {
if len(args)%2 != 0 {
root.Error(errCtx)
return
}
logger.WithFields(getFields(args...)).Info(msg)
}
}
// Warn logs a message at level Info on the standard logger.
func (logger *Logger) Warn(msg string, args ...interface{}) {
if logger.Logger.IsLevelEnabled(logrus.WarnLevel) {
if len(args)%2 != 0 {
root.Error(errCtx)
return
}
logger.WithFields(getFields(args...)).Warn(msg)
}
}
// Error logs a message at level Info on the standard logger.
func (logger *Logger) Error(msg string, args ...interface{}) {
if logger.Logger.IsLevelEnabled(logrus.ErrorLevel) {
if len(args)%2 != 0 {
root.Error(errCtx)
return
}
logger.WithFields(getFields(args...)).Error(msg)
}
}
// Panic logs a message at level Info on the standard logger.
func (logger *Logger) Panic(msg string, args ...interface{}) {
if logger.Logger.IsLevelEnabled(logrus.PanicLevel) {
if len(args)%2 != 0 {
root.Error(errCtx)
return
}
logger.WithFields(getFields(args...)).Panic(msg)
}
}
// Fatal logs a message at level Info on the standard logger.
func (logger *Logger) Fatal(msg string, args ...interface{}) {
if logger.Logger.IsLevelEnabled(logrus.FatalLevel) {
if len(args)%2 != 0 {
root.Error(errCtx)
return
}
logger.WithFields(getFields(args...)).Fatal(msg)
}
}