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[log] NewFilterByLevel returns an error

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This commit is contained in:
Anton Kaliaev
2017-05-13 15:54:11 +02:00
parent 9e1852c08d
commit dd3e433d32
2 changed files with 10 additions and 11 deletions
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7
log/filter.go
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@ -17,7 +17,8 @@ func NewFilter(next Logger, options ...Option) Logger {
}
// NewFilterByLevel wraps next and implements filtering based on a given level.
func NewFilterByLevel(next Logger, lvl string) Logger {
// Error is returned if level is not info, error or debug.
func NewFilterByLevel(next Logger, lvl string) (Logger, error) {
var option Option
switch lvl {
case "info":
@ -27,9 +28,9 @@ func NewFilterByLevel(next Logger, lvl string) Logger {
case "error":
option = AllowError()
default:
panic(fmt.Sprintf("Expected either \"info\", \"debug\" or \"error\" log level, given %v", lvl))
return nil, fmt.Errorf("Expected either \"info\", \"debug\" or \"error\" log level, given %v", lvl)
}
return NewFilter(next, option)
return NewFilter(next, option), nil
}
type filter struct {