133 lines
3.2 KiB
Go
133 lines
3.2 KiB
Go
// Copyright 2015 The etcd Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package raft
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"log"
|
|
"os"
|
|
"sync"
|
|
)
|
|
|
|
type Logger interface {
|
|
Debug(v ...interface{})
|
|
Debugf(format string, v ...interface{})
|
|
|
|
Error(v ...interface{})
|
|
Errorf(format string, v ...interface{})
|
|
|
|
Info(v ...interface{})
|
|
Infof(format string, v ...interface{})
|
|
|
|
Warning(v ...interface{})
|
|
Warningf(format string, v ...interface{})
|
|
|
|
Fatal(v ...interface{})
|
|
Fatalf(format string, v ...interface{})
|
|
|
|
Panic(v ...interface{})
|
|
Panicf(format string, v ...interface{})
|
|
}
|
|
|
|
func SetLogger(l Logger) {
|
|
raftLoggerMu.Lock()
|
|
raftLogger = l
|
|
raftLoggerMu.Unlock()
|
|
}
|
|
|
|
var (
|
|
defaultLogger = &DefaultLogger{Logger: log.New(os.Stderr, "raft", log.LstdFlags)}
|
|
discardLogger = &DefaultLogger{Logger: log.New(ioutil.Discard, "", 0)}
|
|
raftLoggerMu sync.Mutex
|
|
raftLogger = Logger(defaultLogger)
|
|
)
|
|
|
|
const (
|
|
calldepth = 2
|
|
)
|
|
|
|
// DefaultLogger is a default implementation of the Logger interface.
|
|
type DefaultLogger struct {
|
|
*log.Logger
|
|
debug bool
|
|
}
|
|
|
|
func (l *DefaultLogger) EnableTimestamps() {
|
|
l.SetFlags(l.Flags() | log.Ldate | log.Ltime)
|
|
}
|
|
|
|
func (l *DefaultLogger) EnableDebug() {
|
|
l.debug = true
|
|
}
|
|
|
|
func (l *DefaultLogger) Debug(v ...interface{}) {
|
|
if l.debug {
|
|
l.Output(calldepth, header("DEBUG", fmt.Sprint(v...)))
|
|
}
|
|
}
|
|
|
|
func (l *DefaultLogger) Debugf(format string, v ...interface{}) {
|
|
if l.debug {
|
|
l.Output(calldepth, header("DEBUG", fmt.Sprintf(format, v...)))
|
|
}
|
|
}
|
|
|
|
func (l *DefaultLogger) Info(v ...interface{}) {
|
|
l.Output(calldepth, header("INFO", fmt.Sprint(v...)))
|
|
}
|
|
|
|
func (l *DefaultLogger) Infof(format string, v ...interface{}) {
|
|
l.Output(calldepth, header("INFO", fmt.Sprintf(format, v...)))
|
|
}
|
|
|
|
func (l *DefaultLogger) Error(v ...interface{}) {
|
|
l.Output(calldepth, header("ERROR", fmt.Sprint(v...)))
|
|
}
|
|
|
|
func (l *DefaultLogger) Errorf(format string, v ...interface{}) {
|
|
l.Output(calldepth, header("ERROR", fmt.Sprintf(format, v...)))
|
|
}
|
|
|
|
func (l *DefaultLogger) Warning(v ...interface{}) {
|
|
l.Output(calldepth, header("WARN", fmt.Sprint(v...)))
|
|
}
|
|
|
|
func (l *DefaultLogger) Warningf(format string, v ...interface{}) {
|
|
l.Output(calldepth, header("WARN", fmt.Sprintf(format, v...)))
|
|
}
|
|
|
|
func (l *DefaultLogger) Fatal(v ...interface{}) {
|
|
l.Output(calldepth, header("FATAL", fmt.Sprint(v...)))
|
|
os.Exit(1)
|
|
}
|
|
|
|
func (l *DefaultLogger) Fatalf(format string, v ...interface{}) {
|
|
l.Output(calldepth, header("FATAL", fmt.Sprintf(format, v...)))
|
|
os.Exit(1)
|
|
}
|
|
|
|
func (l *DefaultLogger) Panic(v ...interface{}) {
|
|
l.Logger.Panic(v...)
|
|
}
|
|
|
|
func (l *DefaultLogger) Panicf(format string, v ...interface{}) {
|
|
l.Logger.Panicf(format, v...)
|
|
}
|
|
|
|
func header(lvl, msg string) string {
|
|
return fmt.Sprintf("%s: %s", lvl, msg)
|
|
}
|