mirror of
https://github.com/astaxie/beego.git
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319 lines
7.1 KiB
Go
319 lines
7.1 KiB
Go
// Copyright (c) 2016 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package logging
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"log"
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"time"
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)
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type goLogger struct {
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logger *log.Logger
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level Level
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entryFormatter formatter
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}
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const (
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_LEVEL = "_level"
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_MSG = "_msg"
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_TIME = "_time"
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_RLEVEL = "_rlevel"
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)
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func NewLogger(out io.Writer, lvl Level, fmtLogging LogEntryFormatter) *goLogger {
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logger := &goLogger{
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logger: log.New(out, "", 0),
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level: lvl,
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}
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if fmtLogging == JSONFORMATTER {
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logger.entryFormatter = &jsonFormatter{}
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} else if fmtLogging == KVFORMATTER {
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logger.entryFormatter = &keyvalueFormatter{}
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} else {
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logger.entryFormatter = &textFormatter{}
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}
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return logger
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}
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func (gl *goLogger) Logp(level Level, msg string, kv ...Pair) {
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if gl.logger == nil {
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return
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}
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if level <= gl.level {
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e := newLogEntry(msg, level)
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copyPairs(e, kv)
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gl.log(e)
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}
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}
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func (gl *goLogger) Debugp(msg string, kv ...Pair) {
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gl.Logp(DEBUG, msg, kv...)
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}
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func (gl *goLogger) Tracep(msg string, kv ...Pair) {
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gl.Logp(TRACE, msg, kv...)
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}
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func (gl *goLogger) Requestp(rlevel Level, msg string, kv ...Pair) {
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if gl.logger == nil {
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return
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}
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if REQUEST <= gl.level {
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e := newLogEntry(msg, REQUEST)
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e.Rlevel = rlevel
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copyPairs(e, kv)
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gl.log(e)
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}
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}
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func (gl *goLogger) Infop(msg string, kv ...Pair) {
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gl.Logp(INFO, msg, kv...)
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}
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func (gl *goLogger) Warnp(msg string, kv ...Pair) {
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gl.Logp(WARN, msg, kv...)
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}
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func (gl *goLogger) Errorp(msg string, kv ...Pair) {
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gl.Logp(ERROR, msg, kv...)
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}
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func (gl *goLogger) Severep(msg string, kv ...Pair) {
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gl.Logp(SEVERE, msg, kv...)
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}
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func (gl *goLogger) Fatalp(msg string, kv ...Pair) {
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gl.Logp(FATAL, msg, kv...)
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}
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func (gl *goLogger) Logm(level Level, msg string, kv Map) {
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if gl.logger == nil {
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return
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}
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if level <= gl.level {
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e := newLogEntry(msg, level)
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e.Data = kv
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gl.log(e)
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}
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}
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func (gl *goLogger) Debugm(msg string, kv Map) {
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gl.Logm(DEBUG, msg, kv)
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}
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func (gl *goLogger) Tracem(msg string, kv Map) {
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gl.Logm(TRACE, msg, kv)
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}
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func (gl *goLogger) Requestm(rlevel Level, msg string, kv Map) {
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if gl.logger == nil {
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return
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}
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if REQUEST <= gl.level {
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e := newLogEntry(msg, REQUEST)
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e.Rlevel = rlevel
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e.Data = kv
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gl.log(e)
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}
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}
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func (gl *goLogger) Infom(msg string, kv Map) {
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gl.Logm(INFO, msg, kv)
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}
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func (gl *goLogger) Warnm(msg string, kv Map) {
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gl.Logm(WARN, msg, kv)
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}
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func (gl *goLogger) Errorm(msg string, kv Map) {
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gl.Logm(ERROR, msg, kv)
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}
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func (gl *goLogger) Severem(msg string, kv Map) {
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gl.Logm(SEVERE, msg, kv)
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}
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func (gl *goLogger) Fatalm(msg string, kv Map) {
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gl.Logm(FATAL, msg, kv)
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}
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func (gl *goLogger) Logf(level Level, format string, args ...interface{}) {
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if gl.logger == nil {
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return
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}
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if level <= gl.level {
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e := newLogEntry(fmt.Sprintf(format, args...), level)
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gl.log(e)
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}
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}
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func (gl *goLogger) Debugf(format string, args ...interface{}) {
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gl.Logf(DEBUG, format, args...)
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}
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func (gl *goLogger) Tracef(format string, args ...interface{}) {
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gl.Logf(TRACE, format, args...)
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}
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func (gl *goLogger) Requestf(rlevel Level, format string, args ...interface{}) {
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if gl.logger == nil {
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return
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}
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if REQUEST <= gl.level {
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e := newLogEntry(fmt.Sprintf(format, args...), REQUEST)
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e.Rlevel = rlevel
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gl.log(e)
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}
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}
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func (gl *goLogger) Infof(format string, args ...interface{}) {
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gl.Logf(INFO, format, args...)
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}
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func (gl *goLogger) Warnf(format string, args ...interface{}) {
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gl.Logf(WARN, format, args...)
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}
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func (gl *goLogger) Errorf(format string, args ...interface{}) {
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gl.Logf(ERROR, format, args...)
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}
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func (gl *goLogger) Severef(format string, args ...interface{}) {
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gl.Logf(SEVERE, format, args...)
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}
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func (gl *goLogger) Fatalf(format string, args ...interface{}) {
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gl.Logf(FATAL, format, args...)
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}
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func (gl *goLogger) Level() Level {
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return gl.level
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}
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func (gl *goLogger) SetLevel(level Level) {
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gl.level = level
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}
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func (gl *goLogger) log(newEntry *logEntry) {
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s := gl.entryFormatter.format(newEntry)
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gl.logger.Print(s)
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}
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type logEntry struct {
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Time string
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Level Level
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Rlevel Level
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Message string
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Data Map
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}
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func newLogEntry(msg string, level Level) *logEntry {
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return &logEntry{
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Time: time.Now().Format("2006-01-02T15:04:05.000-07:00"), // time.RFC3339 with milliseconds
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Level: level,
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Rlevel: NONE,
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Message: msg,
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}
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}
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func copyPairs(newEntry *logEntry, pairs []Pair) {
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newEntry.Data = make(Map, len(pairs))
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for _, p := range pairs {
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newEntry.Data[p.Name] = p.Value
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}
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}
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type formatter interface {
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format(*logEntry) string
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}
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type textFormatter struct {
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}
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// ex. 2016-02-10T09:15:25.498-08:00 [INFO] This is a message from test in text format
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func (*textFormatter) format(newEntry *logEntry) string {
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b := &bytes.Buffer{}
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appendValue(b, newEntry.Time)
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if newEntry.Rlevel != NONE {
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fmt.Fprintf(b, "[%s,%s] ", newEntry.Level.String(), newEntry.Rlevel.String())
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} else {
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fmt.Fprintf(b, "[%s] ", newEntry.Level.String())
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}
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appendValue(b, newEntry.Message)
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for key, value := range newEntry.Data {
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appendKeyValue(b, key, value)
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}
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b.WriteByte('\n')
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s := bytes.NewBuffer(b.Bytes())
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return s.String()
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}
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func appendValue(b *bytes.Buffer, value interface{}) {
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if _, ok := value.(string); ok {
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fmt.Fprintf(b, "%s ", value)
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} else {
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fmt.Fprintf(b, "%v ", value)
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}
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}
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type keyvalueFormatter struct {
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}
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// ex. _time=2016-02-10T09:15:25.498-08:00 _level=INFO _msg=This is a message from test in key-value format
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func (*keyvalueFormatter) format(newEntry *logEntry) string {
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b := &bytes.Buffer{}
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appendKeyValue(b, _TIME, newEntry.Time)
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appendKeyValue(b, _LEVEL, newEntry.Level.String())
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if newEntry.Rlevel != NONE {
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appendKeyValue(b, _RLEVEL, newEntry.Rlevel.String())
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}
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appendKeyValue(b, _MSG, newEntry.Message)
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for key, value := range newEntry.Data {
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appendKeyValue(b, key, value)
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}
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b.WriteByte('\n')
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s := bytes.NewBuffer(b.Bytes())
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return s.String()
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}
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func appendKeyValue(b *bytes.Buffer, key, value interface{}) {
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if _, ok := value.(string); ok {
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fmt.Fprintf(b, "%v=%s ", key, value)
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} else {
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fmt.Fprintf(b, "%v=%v ", key, value)
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}
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}
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type jsonFormatter struct {
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}
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// ex. {"_level":"INFO","_msg":"This is a message from test in json format","_time":"2016-02-10T09:12:59.518-08:00"}
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func (*jsonFormatter) format(newEntry *logEntry) string {
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if newEntry.Data == nil {
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newEntry.Data = make(Map, 5)
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}
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newEntry.Data[_TIME] = newEntry.Time
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newEntry.Data[_LEVEL] = newEntry.Level.String()
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if newEntry.Rlevel != NONE {
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newEntry.Data[_RLEVEL] = newEntry.Rlevel.String()
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}
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newEntry.Data[_MSG] = newEntry.Message
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serialized, _ := json.Marshal(newEntry.Data)
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s := bytes.NewBuffer(append(serialized, '\n'))
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return s.String()
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}
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