mirror of
https://github.com/astaxie/beego.git
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90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
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// Copyright 2020
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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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package logs
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import (
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"path"
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"strconv"
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)
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var formatterMap = make(map[string]LogFormatter, 4)
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type LogFormatter interface {
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Format(lm *LogMsg) string
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}
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// PatternLogFormatter provides a quick format method
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// for example:
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// tes := &PatternLogFormatter{Pattern: "%F:%n|%w %t>> %m", WhenFormat: "2006-01-02"}
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// RegisterFormatter("tes", tes)
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// SetGlobalFormatter("tes")
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type PatternLogFormatter struct {
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Pattern string
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WhenFormat string
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}
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func (p *PatternLogFormatter) getWhenFormatter() string {
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s := p.WhenFormat
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if s == "" {
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s = "2006/01/02 15:04:05.123" // default style
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}
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return s
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}
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func (p *PatternLogFormatter) Format(lm *LogMsg) string {
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return p.ToString(lm)
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}
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// RegisterFormatter register an formatter. Usually you should use this to extend your custom formatter
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// for example:
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// RegisterFormatter("my-fmt", &MyFormatter{})
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// logs.SetFormatter(Console, `{"formatter": "my-fmt"}`)
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func RegisterFormatter(name string, fmtr LogFormatter) {
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formatterMap[name] = fmtr
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}
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func GetFormatter(name string) (LogFormatter, bool) {
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res, ok := formatterMap[name]
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return res, ok
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}
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// 'w' when, 'm' msg,'f' filename，'F' full path，'n' line number
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// 'l' level number, 't' prefix of level type, 'T' full name of level type
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func (p *PatternLogFormatter) ToString(lm *LogMsg) string {
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s := []rune(p.Pattern)
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m := map[rune]string{
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'w': lm.When.Format(p.getWhenFormatter()),
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'm': lm.Msg,
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'n': strconv.Itoa(lm.LineNumber),
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'l': strconv.Itoa(lm.Level),
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't': levelPrefix[lm.Level-1],
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'T': levelNames[lm.Level-1],
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'F': lm.FilePath,
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}
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_, m['f'] = path.Split(lm.FilePath)
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res := ""
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for i := 0; i < len(s)-1; i++ {
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if s[i] == '%' {
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if k, ok := m[s[i+1]]; ok {
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res += k
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i++
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continue
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}
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}
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res += string(s[i])
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}
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return res
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}
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