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global_begin_response_codec.go
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/
global_begin_response_codec.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 codec
import (
"math"
"github.com/seata/seata-go/pkg/protocol/message"
"github.com/seata/seata-go/pkg/util/bytes"
serror "github.com/seata/seata-go/pkg/util/errors"
)
type GlobalBeginResponseCodec struct{}
func (c *GlobalBeginResponseCodec) Encode(in interface{}) []byte {
data := in.(message.GlobalBeginResponse)
buf := bytes.NewByteBuffer([]byte{})
buf.WriteByte(byte(data.ResultCode))
if data.ResultCode == message.ResultCodeFailed {
msg := data.Msg
if len(data.Msg) > math.MaxInt16 {
msg = data.Msg[:math.MaxInt16]
}
bytes.WriteString16Length(msg, buf)
}
buf.WriteByte(byte(data.TransactionErrorCode))
bytes.WriteString16Length(data.Xid, buf)
bytes.WriteString16Length(string(data.ExtraData), buf)
return buf.Bytes()
}
func (g *GlobalBeginResponseCodec) Decode(in []byte) interface{} {
data := message.GlobalBeginResponse{}
buf := bytes.NewByteBuffer(in)
data.ResultCode = message.ResultCode(bytes.ReadByte(buf))
if data.ResultCode == message.ResultCodeFailed {
data.Msg = bytes.ReadString16Length(buf)
}
data.TransactionErrorCode = serror.TransactionErrorCode(bytes.ReadByte(buf))
data.Xid = bytes.ReadString16Length(buf)
data.ExtraData = []byte(bytes.ReadString16Length(buf))
return data
}
func (g *GlobalBeginResponseCodec) GetMessageType() message.MessageType {
return message.MessageTypeGlobalBeginResult
}