复制项目

internal/msggateway/encoder.go

@@ -0,0 +1,74 @@
+// Copyright © 2023 OpenIM. All rights reserved.
+//
+// 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 msggateway
+
+import (
+	"bytes"
+	"encoding/gob"
+	"encoding/json"
+
+	"github.com/openimsdk/tools/errs"
+)
+
+type Encoder interface {
+	Encode(data any) ([]byte, error)
+	Decode(encodeData []byte, decodeData any) error
+}
+
+type GobEncoder struct{}
+
+func NewGobEncoder() Encoder {
+	return GobEncoder{}
+}
+
+func (g GobEncoder) Encode(data any) ([]byte, error) {
+	var buff bytes.Buffer
+	enc := gob.NewEncoder(&buff)
+	if err := enc.Encode(data); err != nil {
+		return nil, errs.WrapMsg(err, "GobEncoder.Encode failed", "action", "encode")
+	}
+	return buff.Bytes(), nil
+}
+
+func (g GobEncoder) Decode(encodeData []byte, decodeData any) error {
+	buff := bytes.NewBuffer(encodeData)
+	dec := gob.NewDecoder(buff)
+	if err := dec.Decode(decodeData); err != nil {
+		return errs.WrapMsg(err, "GobEncoder.Decode failed", "action", "decode")
+	}
+	return nil
+}
+
+type JsonEncoder struct{}
+
+func NewJsonEncoder() Encoder {
+	return JsonEncoder{}
+}
+
+func (g JsonEncoder) Encode(data any) ([]byte, error) {
+	b, err := json.Marshal(data)
+	if err != nil {
+		return nil, errs.New("JsonEncoder.Encode failed", "action", "encode")
+	}
+	return b, nil
+}
+
+func (g JsonEncoder) Decode(encodeData []byte, decodeData any) error {
+	err := json.Unmarshal(encodeData, decodeData)
+	if err != nil {
+		return errs.New("JsonEncoder.Decode failed", "action", "decode")
+	}
+	return nil
+}