Code clean up

application/command/commands.go

@@ -33,7 +33,7 @@ const (
 // Errors
 var (
 	ErrCommandRunUndefinedCommand = errors.New(
-		"Undefined Command")
+		"undefined Command")
 )
 
 // Command represents a command handler machine builder

application/command/handler.go

@@ -31,13 +31,13 @@ import (
 // Errors
 var (
 	ErrHandlerUnknownHeaderType = errors.New(
-		"Unknown command header type")
+		"unknown command header type")
 
 	ErrHandlerControlMessageTooLong = errors.New(
-		"Control message was too long")
+		"control message was too long")
 
 	ErrHandlerInvalidControlMessage = errors.New(
-		"Invalid control message")
+		"invalid control message")
 )
 
 // HandlerCancelSignal signals the cancel of the entire handling proccess
@@ -113,11 +113,6 @@ type streamHandlerSender struct {
 	sendDelay time.Duration
 }
 
-// signal sends handler signal
-func (h streamHandlerSender) signal(hd Header, d []byte, buf []byte) error {
-	return h.handlerSender.signal(hd, d, buf)
-}
-
 // Write sends data
 func (h streamHandlerSender) Write(b []byte) (int, error) {
 	defer time.Sleep(h.sendDelay)

application/command/streams.go

@@ -28,16 +28,16 @@ import (
 // Errors
 var (
 	ErrStreamsInvalidStreamID = errors.New(
-		"Stream ID is invalid")
+		"stream ID is invalid")
 
 	ErrStreamsStreamOperateInactiveStream = errors.New(
-		"Specified stream was inactive for operation")
+		"specified stream was inactive for operation")
 
 	ErrStreamsStreamClosingInactiveStream = errors.New(
-		"Closing an inactive stream is not allowed")
+		"closing an inactive stream is not allowed")
 
 	ErrStreamsStreamReleasingInactiveStream = errors.New(
-		"Releasing an inactive stream is not allowed")
+		"releasing an inactive stream is not allowed")
 )
 
 // StreamError Stream Error signal