seata-go/pkg/protocol/codec/global_begin_request_codec.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 codec

import (
	"github.com/fagongzi/goetty"
	"github.com/seata/seata-go/pkg/protocol/message"
)

func init() {
	GetCodecManager().RegisterCodec(CodecTypeSeata, &GlobalBeginRequestCodec{})
}

type GlobalBeginRequestCodec struct {
}

func (c *GlobalBeginRequestCodec) Encode(in interface{}) []byte {
	req := in.(message.GlobalBeginRequest)
	buf := goetty.NewByteBuf(0)

	buf.WriteUInt32(uint32(req.Timeout))
	Write16String(req.TransactionName, buf)

	return buf.RawBuf()
}

func (g *GlobalBeginRequestCodec) Decode(in []byte) interface{} {
	msg := message.GlobalBeginRequest{}
	buf := goetty.NewByteBuf(len(in))
	buf.Write(in)

	msg.Timeout = int32(ReadUInt32(buf))
	len := ReadUInt16(buf)
	if len > 0 {
		transactionName := make([]byte, len)
		msg.TransactionName = string(Read(buf, transactionName))
	}

	return msg
}

func (g *GlobalBeginRequestCodec) GetMessageType() message.MessageType {
	return message.MessageType_GlobalBegin
}