47dd1cb7ae
Refactor Logger to make a logger interface and make it possible to wrap loggers for specific purposes. Co-authored-by: techknowlogick <techknowlogick@gitea.io>
99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
// Copyright 2020 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package log
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import (
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"fmt"
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"runtime"
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"strings"
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"time"
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)
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// MultiChannelledLogger is default logger in the Gitea application.
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// it can contain several providers and log message into all providers.
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type MultiChannelledLogger struct {
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LevelLoggerLogger
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*MultiChannelledLog
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bufferLength int64
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}
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// newLogger initializes and returns a new logger.
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func newLogger(name string, buffer int64) *MultiChannelledLogger {
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l := &MultiChannelledLogger{
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MultiChannelledLog: NewMultiChannelledLog(name, buffer),
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bufferLength: buffer,
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}
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l.LevelLogger = l
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return l
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}
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// SetLogger sets new logger instance with given logger provider and config.
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func (l *MultiChannelledLogger) SetLogger(name, provider, config string) error {
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eventLogger, err := NewChannelledLog(name, provider, config, l.bufferLength)
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if err != nil {
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return fmt.Errorf("Failed to create sublogger (%s): %v", name, err)
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}
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l.MultiChannelledLog.DelLogger(name)
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err = l.MultiChannelledLog.AddLogger(eventLogger)
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if err != nil {
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if IsErrDuplicateName(err) {
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return fmt.Errorf("Duplicate named sublogger %s %v", name, l.MultiChannelledLog.GetEventLoggerNames())
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}
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return fmt.Errorf("Failed to add sublogger (%s): %v", name, err)
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}
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return nil
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}
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// DelLogger deletes a sublogger from this logger.
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func (l *MultiChannelledLogger) DelLogger(name string) (bool, error) {
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return l.MultiChannelledLog.DelLogger(name), nil
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}
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// Log msg at the provided level with the provided caller defined by skip (0 being the function that calls this function)
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func (l *MultiChannelledLogger) Log(skip int, level Level, format string, v ...interface{}) error {
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if l.GetLevel() > level {
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return nil
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}
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caller := "?()"
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pc, filename, line, ok := runtime.Caller(skip + 1)
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if ok {
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// Get caller function name.
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fn := runtime.FuncForPC(pc)
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if fn != nil {
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caller = fn.Name() + "()"
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}
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}
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msg := format
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if len(v) > 0 {
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msg = ColorSprintf(format, v...)
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}
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stack := ""
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if l.GetStacktraceLevel() <= level {
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stack = Stack(skip + 1)
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}
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return l.SendLog(level, caller, strings.TrimPrefix(filename, prefix), line, msg, stack)
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}
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// SendLog sends a log event at the provided level with the information given
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func (l *MultiChannelledLogger) SendLog(level Level, caller, filename string, line int, msg string, stack string) error {
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if l.GetLevel() > level {
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return nil
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}
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event := &Event{
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level: level,
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caller: caller,
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filename: filename,
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line: line,
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msg: msg,
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time: time.Now(),
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stacktrace: stack,
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}
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l.LogEvent(event)
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return nil
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}
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