142 lines
3.1 KiB
Go
142 lines
3.1 KiB
Go
/*
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* Copyright 2022 CloudWeGo Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package logs
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import (
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"bytes"
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"errors"
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"fmt"
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"log"
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"os"
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)
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type StdLogger struct {
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level int
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outLogger *log.Logger
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warnLogger *log.Logger
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errLogger *log.Logger
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out *bytes.Buffer
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warn *bytes.Buffer
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err *bytes.Buffer
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Defer bool
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ErrOnly bool
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}
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func NewStdLogger(level int) *StdLogger {
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out := bytes.NewBuffer(nil)
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warn := bytes.NewBuffer(nil)
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err := bytes.NewBuffer(nil)
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return &StdLogger{
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level: level,
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outLogger: log.New(out, "[INFO]", log.Llongfile),
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warnLogger: log.New(warn, "[WARN]", log.Llongfile),
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errLogger: log.New(err, "[ERROR]", log.Llongfile),
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out: out,
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warn: warn,
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err: err,
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}
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}
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func (stdLogger *StdLogger) Debugf(format string, v ...interface{}) {
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if stdLogger.level > LevelDebug {
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return
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}
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stdLogger.outLogger.Output(3, fmt.Sprintf(format, v...))
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if !stdLogger.Defer {
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stdLogger.FlushOut()
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}
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}
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func (stdLogger *StdLogger) Infof(format string, v ...interface{}) {
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if stdLogger.level > LevelInfo {
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return
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}
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stdLogger.outLogger.Output(3, fmt.Sprintf(format, v...))
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if !stdLogger.Defer {
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stdLogger.FlushOut()
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}
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}
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func (stdLogger *StdLogger) Warnf(format string, v ...interface{}) {
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if stdLogger.level > LevelWarn {
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return
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}
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stdLogger.warnLogger.Output(3, fmt.Sprintf(format, v...))
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if !stdLogger.Defer {
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stdLogger.FlushErr()
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}
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}
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func (stdLogger *StdLogger) Errorf(format string, v ...interface{}) {
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if stdLogger.level > LevelError {
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return
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}
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stdLogger.errLogger.Output(3, fmt.Sprintf(format, v...))
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if !stdLogger.Defer {
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stdLogger.FlushErr()
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}
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}
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func (stdLogger *StdLogger) Flush() {
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stdLogger.FlushErr()
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if !stdLogger.ErrOnly {
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stdLogger.FlushOut()
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}
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}
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func (stdLogger *StdLogger) FlushOut() {
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os.Stderr.Write(stdLogger.out.Bytes())
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stdLogger.out.Reset()
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}
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func (stdLogger *StdLogger) Err() string {
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return string(stdLogger.err.Bytes())
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}
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func (stdLogger *StdLogger) Warn() string {
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return string(stdLogger.warn.Bytes())
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}
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func (stdLogger *StdLogger) FlushErr() {
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os.Stderr.Write(stdLogger.err.Bytes())
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stdLogger.err.Reset()
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}
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func (stdLogger *StdLogger) OutLines() []string {
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lines := bytes.Split(stdLogger.out.Bytes(), []byte("[INFO]"))
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var rets []string
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for _, line := range lines {
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rets = append(rets, string(line))
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}
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return rets
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}
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func (stdLogger *StdLogger) Out() []byte {
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return stdLogger.out.Bytes()
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}
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func (stdLogger *StdLogger) SetLevel(level int) error {
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switch level {
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case LevelDebug, LevelInfo, LevelWarn, LevelError:
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break
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default:
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return errors.New("invalid log level")
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}
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stdLogger.level = level
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return nil
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}
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