telegraf/testutil/capturelog.go

83 lines
2.2 KiB
Go

package testutil
import (
"fmt"
"log"
"sync"
"github.com/influxdata/telegraf"
)
var _ telegraf.Logger = &CaptureLogger{}
// CaptureLogger defines a logging structure for plugins.
type CaptureLogger struct {
Name string // Name is the plugin name, will be printed in the `[]`.
errors []string
sync.Mutex
}
// Errorf logs an error message, patterned after log.Printf.
func (l *CaptureLogger) Errorf(format string, args ...interface{}) {
s := fmt.Sprintf("E! ["+l.Name+"] "+format, args...)
l.Lock()
l.errors = append(l.errors, s)
l.Unlock()
log.Print(s)
}
// Error logs an error message, patterned after log.Print.
func (l *CaptureLogger) Error(args ...interface{}) {
s := fmt.Sprint(append([]interface{}{"E! [" + l.Name + "] "}, args...)...)
l.Lock()
l.errors = append(l.errors, s)
l.Unlock()
log.Print(s)
}
// Debugf logs a debug message, patterned after log.Printf.
func (l *CaptureLogger) Debugf(format string, args ...interface{}) {
log.Printf("D! ["+l.Name+"] "+format, args...)
}
// Debug logs a debug message, patterned after log.Print.
func (l *CaptureLogger) Debug(args ...interface{}) {
log.Print(append([]interface{}{"D! [" + l.Name + "] "}, args...)...)
}
// Warnf logs a warning message, patterned after log.Printf.
func (l *CaptureLogger) Warnf(format string, args ...interface{}) {
log.Printf("W! ["+l.Name+"] "+format, args...)
}
// Warn logs a warning message, patterned after log.Print.
func (l *CaptureLogger) Warn(args ...interface{}) {
log.Print(append([]interface{}{"W! [" + l.Name + "] "}, args...)...)
}
// Infof logs an information message, patterned after log.Printf.
func (l *CaptureLogger) Infof(format string, args ...interface{}) {
log.Printf("I! ["+l.Name+"] "+format, args...)
}
// Info logs an information message, patterned after log.Print.
func (l *CaptureLogger) Info(args ...interface{}) {
log.Print(append([]interface{}{"I! [" + l.Name + "] "}, args...)...)
}
func (l *CaptureLogger) Errors() []string {
l.Lock()
defer l.Unlock()
e := append([]string{}, l.errors...)
return e
}
func (l *CaptureLogger) LastError() string {
l.Lock()
defer l.Unlock()
if len(l.errors) > 0 {
return l.errors[len(l.errors)-1]
}
return ""
}