Added Reading of Json with Protocol Definition

proto/proto.go

@@ -0,0 +1,47 @@
+package proto
+
+import (
+	"encoding/json"
+	"strconv"
+)
+
+type HexByte byte
+
+type ProtoComplete struct {
+	Header    ProtocolHeader            `json:"protocol"`
+	Protocols map[string][]ProtoMessage `json:"protocols"`
+}
+
+type ProtocolHeader struct {
+	StartByte     HexByte `json:"start_byte"`
+	MessageLength int     `json:"message_length"`
+	MaxPayload    int     `json:"max_payload"`
+	Checksum      string  `json:"checksum"`
+}
+
+type ProtoMessage struct {
+	Name    string                `json:"name"`
+	ID      HexByte               `json:"id"`
+	Payload []ProtoMessagePayload `json:"payload,omitempty"` // optional falls kein payload
+}
+
+type ProtoMessagePayload struct {
+	Name        string `json:"name"`
+	DataType    string `json:"type"`
+	ArrayLength int    `json:"array,omitempty"` // optional falls kein array
+}
+
+func (h *HexByte) UnmarshalJSON(data []byte) error {
+	var s string
+	if err := json.Unmarshal(data, &s); err != nil { // turn into go string
+		return err
+	}
+
+	i, err := strconv.ParseUint(s, 0, 8)
+	if err != nil {
+		return err
+	}
+
+	*h = HexByte(i)
+	return nil
+}

proto/proto_test.go

@@ -0,0 +1,23 @@
+package proto
+
+import (
+	"encoding/json"
+	"log"
+	"os"
+	"testing"
+)
+
+func TestReadJson(t *testing.T) {
+	con, err := os.ReadFile("../testdata/prot1.json")
+	if err != nil {
+		log.Fatalf("Could not read file %v", err)
+	}
+
+	pc := &ProtoComplete{}
+
+	json.Unmarshal(con, pc)
+
+	log.Printf("%v", pc)
+
+	t.Fail()
+}