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