seata-go/pkg/saga/statemachine/engine/serializer/serializer.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 serializer

import (
	"bytes"
	"encoding/gob"
	"encoding/json"
	"github.com/pkg/errors"
)

type ParamsSerializer struct{}

func (ParamsSerializer) Serialize(object any) (string, error) {
	result, err := json.Marshal(object)
	return string(result), err
}

func (ParamsSerializer) Deserialize(object string) (any, error) {
	var result any
	err := json.Unmarshal([]byte(object), &result)
	return result, err
}

type ErrorSerializer struct{}

func (ErrorSerializer) Serialize(object error) ([]byte, error) {
	var buffer bytes.Buffer
	encoder := gob.NewEncoder(&buffer)
	if object != nil {
		err := encoder.Encode(object.Error())
		return buffer.Bytes(), err
	}
	return nil, nil
}

func (ErrorSerializer) Deserialize(object []byte) (error, error) {
	var errorMsg string
	buffer := bytes.NewReader(object)
	encoder := gob.NewDecoder(buffer)
	err := encoder.Decode(&errorMsg)

	return errors.New(errorMsg), err
}