forked from cerc-io/plugeth
3f047be5aa
All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".
77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package logger
|
|
|
|
import (
|
|
"io"
|
|
"log"
|
|
"sync/atomic"
|
|
)
|
|
|
|
// LogSystem is implemented by log output devices.
|
|
// All methods can be called concurrently from multiple goroutines.
|
|
type LogSystem interface {
|
|
LogPrint(LogMsg)
|
|
}
|
|
|
|
// NewStdLogSystem creates a LogSystem that prints to the given writer.
|
|
// The flag values are defined package log.
|
|
func NewStdLogSystem(writer io.Writer, flags int, level LogLevel) *StdLogSystem {
|
|
logger := log.New(writer, "", flags)
|
|
return &StdLogSystem{logger, uint32(level)}
|
|
}
|
|
|
|
type StdLogSystem struct {
|
|
logger *log.Logger
|
|
level uint32
|
|
}
|
|
|
|
func (t *StdLogSystem) LogPrint(msg LogMsg) {
|
|
stdmsg, ok := msg.(stdMsg)
|
|
if ok {
|
|
if t.GetLogLevel() >= stdmsg.Level() {
|
|
t.logger.Print(stdmsg.String())
|
|
}
|
|
}
|
|
}
|
|
|
|
func (t *StdLogSystem) SetLogLevel(i LogLevel) {
|
|
atomic.StoreUint32(&t.level, uint32(i))
|
|
}
|
|
|
|
func (t *StdLogSystem) GetLogLevel() LogLevel {
|
|
return LogLevel(atomic.LoadUint32(&t.level))
|
|
}
|
|
|
|
// NewJSONLogSystem creates a LogSystem that prints to the given writer without
|
|
// adding extra information irrespective of loglevel only if message is JSON type
|
|
func NewJsonLogSystem(writer io.Writer) LogSystem {
|
|
logger := log.New(writer, "", 0)
|
|
return &jsonLogSystem{logger}
|
|
}
|
|
|
|
type jsonLogSystem struct {
|
|
logger *log.Logger
|
|
}
|
|
|
|
func (t *jsonLogSystem) LogPrint(msg LogMsg) {
|
|
jsonmsg, ok := msg.(jsonMsg)
|
|
if ok {
|
|
t.logger.Print(jsonmsg.String())
|
|
}
|
|
}
|