make api.Channel as interface

Change-Id: I052d241ab09043b1195beebeee99df4d8536621f
Signed-off-by: Vladimir Lavor <vlavor@cisco.com>

1 files changed, 0 insertions, 159 deletions

diff --git a/core/msg_codec.go b/core/msg_codec.go
deleted file mode 100644
index e32916b..0000000
--- a/core/msg_codec.go
+++ /dev/null
@@ -1,159 +0,0 @@
-// Copyright (c) 2017 Cisco and/or its affiliates.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at:
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package core
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"reflect"
-
-	"github.com/lunixbochs/struc"
-	logger "github.com/sirupsen/logrus"
-
-	"git.fd.io/govpp.git/api"
-)
-
-// MsgCodec provides encoding and decoding functionality of `api.Message` structs into/from
-// binary format as accepted by VPP.
-type MsgCodec struct{}
-
-// VppRequestHeader struct contains header fields implemented by all VPP requests.
-type VppRequestHeader struct {
-	VlMsgID     uint16
-	ClientIndex uint32
-	Context     uint32
-}
-
-// VppReplyHeader struct contains header fields implemented by all VPP replies.
-type VppReplyHeader struct {
-	VlMsgID uint16
-	Context uint32
-}
-
-// VppEventHeader struct contains header fields implemented by all VPP events.
-type VppEventHeader struct {
-	VlMsgID uint16
-	Context uint32
-}
-
-// VppOtherHeader struct contains header fields implemented by other VPP messages (not requests nor replies).
-type VppOtherHeader struct {
-	VlMsgID uint16
-}
-
-const (
-	vppRequestHeaderSize = 10 // size of a VPP request header
-	vppReplyHeaderSize   = 6  // size of a VPP reply header
-	vppEventHeaderSize   = 6  // size of a VPP event header
-	vppOtherHeaderSize   = 2  // size of the header of other VPP messages
-)
-
-// EncodeMsg encodes provided `Message` structure into its binary-encoded data representation.
-func (*MsgCodec) EncodeMsg(msg api.Message, msgID uint16) ([]byte, error) {
-	if msg == nil {
-		return nil, errors.New("nil message passed in")
-	}
-
-	buf := new(bytes.Buffer)
-
-	// encode message header
-	var header interface{}
-	if msg.GetMessageType() == api.RequestMessage {
-		header = &VppRequestHeader{VlMsgID: msgID}
-	} else if msg.GetMessageType() == api.ReplyMessage {
-		header = &VppReplyHeader{VlMsgID: msgID}
-	} else if msg.GetMessageType() == api.EventMessage {
-		header = &VppEventHeader{VlMsgID: msgID}
-	} else {
-		header = &VppOtherHeader{VlMsgID: msgID}
-	}
-	err := struc.Pack(buf, header)
-	if err != nil {
-		log.WithFields(logger.Fields{
-			"error":  err,
-			"header": header,
-		}).Error("Unable to encode the message header: ", err)
-		return nil, fmt.Errorf("unable to encode the message header: %v", err)
-	}
-
-	// encode message content
-	if reflect.Indirect(reflect.ValueOf(msg)).NumField() > 0 {
-		err := struc.Pack(buf, msg)
-		if err != nil {
-			log.WithFields(logger.Fields{
-				"error":   err,
-				"message": msg,
-			}).Error("Unable to encode the message: ", err)
-			return nil, fmt.Errorf("unable to encode the message: %v", err)
-		}
-	}
-
-	return buf.Bytes(), nil
-}
-
-// DecodeMsg decodes binary-encoded data of a message into provided `Message` structure.
-func (*MsgCodec) DecodeMsg(data []byte, msg api.Message) error {
-	if msg == nil {
-		return errors.New("nil message passed in")
-	}
-
-	buf := bytes.NewReader(data)
-
-	// check which header is expected
-	var header interface{}
-	if msg.GetMessageType() == api.RequestMessage {
-		header = &VppRequestHeader{}
-	} else if msg.GetMessageType() == api.ReplyMessage {
-		header = &VppReplyHeader{}
-	} else if msg.GetMessageType() == api.EventMessage {
-		header = &VppEventHeader{}
-	} else {
-		header = &VppOtherHeader{}
-	}
-
-	// decode message header
-	err := struc.Unpack(buf, header)
-	if err != nil {
-		log.WithFields(logger.Fields{
-			"error": err,
-			"data":  data,
-		}).Error("Unable to decode header of the message.")
-		return fmt.Errorf("unable to decode the message header: %v", err)
-	}
-
-	// get rid of the message header
-	if msg.GetMessageType() == api.RequestMessage {
-		buf = bytes.NewReader(data[vppRequestHeaderSize:])
-	} else if msg.GetMessageType() == api.ReplyMessage {
-		buf = bytes.NewReader(data[vppReplyHeaderSize:])
-	} else if msg.GetMessageType() == api.EventMessage {
-		buf = bytes.NewReader(data[vppEventHeaderSize:])
-	} else {
-		buf = bytes.NewReader(data[vppOtherHeaderSize:])
-	}
-
-	// decode message content
-	err = struc.Unpack(buf, msg)
-	if err != nil {
-		log.WithFields(logger.Fields{
-			"error": err,
-			"data":  buf,
-		}).Error("Unable to decode the message.")
-		return fmt.Errorf("unable to decode the message: %v", err)
-	}
-
-	return nil
-}