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parser_json.go
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/
parser_json.go
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/*
* 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 parser
import (
"encoding/json"
"github.com/seata/seata-go/pkg/datasource/sql/undo"
)
type JsonParser struct {
}
// Get the name of parser;
// return the name of parser
func (j *JsonParser) GetName() string {
return "json"
}
// Get default context of this parser
// return the default content if undo log is empty
func (j *JsonParser) GetDefaultContent() []byte {
return []byte("{}")
}
// Encode branch undo log to byte array.
// param branchUndoLog the branch undo log
// return the byte array
func (j *JsonParser) Encode(branchUndoLog *undo.BranchUndoLog) ([]byte, error) {
bytes, err := json.Marshal(branchUndoLog)
if err != nil {
return nil, err
}
return bytes, nil
}
// Decode byte array to branch undo log.
// param bytes the byte array
// return the branch undo log
func (j *JsonParser) Decode(bytes []byte) (*undo.BranchUndoLog, error) {
var branchUndoLog *undo.BranchUndoLog
if err := json.Unmarshal(bytes, &branchUndoLog); err != nil {
return nil, err
}
return branchUndoLog, nil
}