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produce_request.go
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/
produce_request.go
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package healer
import (
"encoding/binary"
)
type ProduceRequest struct {
*RequestHeader
RequiredAcks int16
Timeout int32
TopicBlocks []struct {
TopicName string
PartitonBlocks []struct {
Partition int32
MessageSetSize int32
MessageSet MessageSet
}
}
}
func (produceRequest *ProduceRequest) Length() int {
requestLength := produceRequest.RequestHeader.length() + 10 // RequiredAcks(2) + Timeout(4) + TopicBlocks_length(4)
for _, topicBlock := range produceRequest.TopicBlocks {
requestLength += 6 + len(topicBlock.TopicName)
for _, parttionBlock := range topicBlock.PartitonBlocks {
requestLength += 8 + parttionBlock.MessageSet.Length()
}
}
return requestLength
}
func (produceRequest *ProduceRequest) Encode(version uint16) []byte {
requestLength := produceRequest.Length()
payload := make([]byte, requestLength+4)
offset := 0
binary.BigEndian.PutUint32(payload[offset:], uint32(requestLength))
offset += 4
offset += produceRequest.RequestHeader.Encode(payload[offset:])
binary.BigEndian.PutUint16(payload[offset:], uint16(produceRequest.RequiredAcks))
offset += 2
binary.BigEndian.PutUint32(payload[offset:], uint32(produceRequest.Timeout))
offset += 4
binary.BigEndian.PutUint32(payload[offset:], uint32(len(produceRequest.TopicBlocks)))
offset += 4
for _, topicBlock := range produceRequest.TopicBlocks {
binary.BigEndian.PutUint16(payload[offset:], uint16(len(topicBlock.TopicName)))
offset += 2
offset += copy(payload[offset:], topicBlock.TopicName)
binary.BigEndian.PutUint32(payload[offset:], uint32(len(topicBlock.PartitonBlocks)))
offset += 4
for _, parttionBlock := range topicBlock.PartitonBlocks {
binary.BigEndian.PutUint32(payload[offset:], uint32(parttionBlock.Partition))
offset += 4
binary.BigEndian.PutUint32(payload[offset:], uint32(parttionBlock.MessageSet.Length()))
offset += 4
offset = parttionBlock.MessageSet.Encode(payload, offset)
}
}
return payload
}