Initial cloud-services repo - gateway service + pkg modules

pkg/common/binary_hex.go

@@ -0,0 +1,56 @@
+package common
+
+import (
+	"encoding/hex"
+	"fmt"
+	"strings"
+)
+
+func NewBinaryHex(data []byte) BinaryHex {
+	var result BinaryHex = data
+	return result
+}
+
+type BinaryHex []byte
+
+func (bh BinaryHex) Bytes() []byte {
+	return []byte(bh)
+}
+
+func (bh *BinaryHex) SetBytes(value []byte) {
+	v := BinaryHex(value)
+	*bh = v
+}
+
+func (bh BinaryHex) String() string {
+	return hex.EncodeToString(bh)
+}
+
+// TODO Hack to render []byte as int array for the JSON RPC. Otherwise Go renders in base64
+func (bh BinaryHex) UintArray() []uint {
+	bytes := bh.Bytes()
+	result := make([]uint, len(bytes))
+	for i, d := range bytes {
+		result[i] = uint(d)
+	}
+
+	return result
+}
+
+func (bh *BinaryHex) SetHex(data string) error {
+	x, err := hex.DecodeString(strings.Trim(string(data), `"`))
+	if err != nil {
+		return err
+	}
+	*bh = x
+
+	return nil
+}
+
+func (bh BinaryHex) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, bh.String())), nil
+}
+
+func (bh *BinaryHex) UnmarshalJSON(data []byte) error {
+	return bh.SetHex(string(data))
+}