150 lines
4.0 KiB
Go
150 lines
4.0 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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/*
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Package logger implements a multi-output leveled logger.
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Other packages use tagged logger to send log messages to shared
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(process-wide) logging engine. The shared logging engine dispatches to
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multiple log systems. The log level can be set separately per log
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system.
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Logging is asynchronous and does not block the caller. Message
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formatting is performed by the caller goroutine to avoid incorrect
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logging of mutable state.
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*/
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package logger
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import (
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"encoding/json"
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"fmt"
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"os"
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)
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type LogLevel uint32
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const (
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// Standard log levels
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Silence LogLevel = iota
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ErrorLevel
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WarnLevel
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InfoLevel
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DebugLevel
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DebugDetailLevel
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)
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// A Logger prints messages prefixed by a given tag. It provides named
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// Printf and Println style methods for all loglevels. Each ethereum
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// component should have its own logger with a unique prefix.
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type Logger struct {
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tag string
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}
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func NewLogger(tag string) *Logger {
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return &Logger{"[" + tag + "] "}
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}
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func (logger *Logger) Sendln(level LogLevel, v ...interface{}) {
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logMessageC <- stdMsg{level, logger.tag + fmt.Sprintln(v...)}
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}
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func (logger *Logger) Sendf(level LogLevel, format string, v ...interface{}) {
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logMessageC <- stdMsg{level, logger.tag + fmt.Sprintf(format, v...)}
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}
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// Errorln writes a message with ErrorLevel.
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func (logger *Logger) Errorln(v ...interface{}) {
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logger.Sendln(ErrorLevel, v...)
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}
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// Warnln writes a message with WarnLevel.
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func (logger *Logger) Warnln(v ...interface{}) {
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logger.Sendln(WarnLevel, v...)
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}
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// Infoln writes a message with InfoLevel.
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func (logger *Logger) Infoln(v ...interface{}) {
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logger.Sendln(InfoLevel, v...)
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}
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// Debugln writes a message with DebugLevel.
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func (logger *Logger) Debugln(v ...interface{}) {
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logger.Sendln(DebugLevel, v...)
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}
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// DebugDetailln writes a message with DebugDetailLevel.
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func (logger *Logger) DebugDetailln(v ...interface{}) {
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logger.Sendln(DebugDetailLevel, v...)
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}
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// Errorf writes a message with ErrorLevel.
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func (logger *Logger) Errorf(format string, v ...interface{}) {
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logger.Sendf(ErrorLevel, format, v...)
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}
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// Warnf writes a message with WarnLevel.
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func (logger *Logger) Warnf(format string, v ...interface{}) {
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logger.Sendf(WarnLevel, format, v...)
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}
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// Infof writes a message with InfoLevel.
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func (logger *Logger) Infof(format string, v ...interface{}) {
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logger.Sendf(InfoLevel, format, v...)
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}
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// Debugf writes a message with DebugLevel.
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func (logger *Logger) Debugf(format string, v ...interface{}) {
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logger.Sendf(DebugLevel, format, v...)
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}
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// DebugDetailf writes a message with DebugDetailLevel.
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func (logger *Logger) DebugDetailf(format string, v ...interface{}) {
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logger.Sendf(DebugDetailLevel, format, v...)
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}
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// Fatalln writes a message with ErrorLevel and exits the program.
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func (logger *Logger) Fatalln(v ...interface{}) {
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logger.Sendln(ErrorLevel, v...)
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Flush()
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os.Exit(0)
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}
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// Fatalf writes a message with ErrorLevel and exits the program.
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func (logger *Logger) Fatalf(format string, v ...interface{}) {
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logger.Sendf(ErrorLevel, format, v...)
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Flush()
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os.Exit(0)
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}
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type JsonLogger struct {
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Coinbase string
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}
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func NewJsonLogger() *JsonLogger {
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return &JsonLogger{}
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}
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func (logger *JsonLogger) LogJson(v JsonLog) {
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msgname := v.EventName()
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obj := map[string]interface{}{
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msgname: v,
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}
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jsontxt, _ := json.Marshal(obj)
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logMessageC <- (jsonMsg(jsontxt))
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}
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