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logger.go
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logger.go
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package log
// Level of log
type Level uint8
const (
// DebugLevel defines debug log level.
DebugLevel Level = iota + 1
// InfoLevel defines info log level.
InfoLevel
// WarnLevel defines warn log level.
WarnLevel
// ErrorLevel defines error log level.
ErrorLevel
// NoLevel defines an absent log level.
NoLevel Level = 254
// Disabled disables the logger.
Disabled Level = 255
)
// Logger is the interface for logger.
type Logger interface {
// SetLevel sets the logger level
SetLevel(Level)
// SetEncoding sets the logger's encoding
SetEncoding(encoding string)
// Printf logs a message without level
Printf(template string, args ...interface{})
// Debugf logs a message at DebugLevel
Debugf(template string, args ...interface{})
// Infof logs a message at InfoLevel
Infof(template string, args ...interface{})
// Warnf logs a message at WarnLevel
Warnf(template string, args ...interface{})
// Errorf logs a message at ErrorLevel
Errorf(template string, args ...interface{})
// Output file path to write log message
Output(file string)
// ErrorOutput file path to write error message
ErrorOutput(file string)
}
// String the logger level
func (l Level) String() string {
switch l {
case DebugLevel:
return "DEBUG"
case ErrorLevel:
return "ERROR"
case WarnLevel:
return "WARN"
case InfoLevel:
return "INFO"
default:
return ""
}
}