Курнат Андрей
92 lines
2.2 KiB
Go
92 lines
2.2 KiB
Go
package rawproduce
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import (
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"fmt"
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"github.com/segmentio/kafka-go/protocol"
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"github.com/segmentio/kafka-go/protocol/produce"
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)
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func init() {
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// Register a type override so that raw produce requests will be encoded with the correct type.
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req := &Request{}
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protocol.RegisterOverride(req, &produce.Response{}, req.TypeKey())
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}
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type Request struct {
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TransactionalID string `kafka:"min=v3,max=v8,nullable"`
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Acks int16 `kafka:"min=v0,max=v8"`
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Timeout int32 `kafka:"min=v0,max=v8"`
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Topics []RequestTopic `kafka:"min=v0,max=v8"`
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}
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func (r *Request) ApiKey() protocol.ApiKey { return protocol.Produce }
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func (r *Request) TypeKey() protocol.OverrideTypeKey { return protocol.RawProduceOverride }
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func (r *Request) Broker(cluster protocol.Cluster) (protocol.Broker, error) {
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broker := protocol.Broker{ID: -1}
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for i := range r.Topics {
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t := &r.Topics[i]
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topic, ok := cluster.Topics[t.Topic]
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if !ok {
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return broker, NewError(protocol.NewErrNoTopic(t.Topic))
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}
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for j := range t.Partitions {
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p := &t.Partitions[j]
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partition, ok := topic.Partitions[p.Partition]
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if !ok {
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return broker, NewError(protocol.NewErrNoPartition(t.Topic, p.Partition))
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}
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if b, ok := cluster.Brokers[partition.Leader]; !ok {
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return broker, NewError(protocol.NewErrNoLeader(t.Topic, p.Partition))
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} else if broker.ID < 0 {
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broker = b
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} else if b.ID != broker.ID {
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return broker, NewError(fmt.Errorf("mismatching leaders (%d!=%d)", b.ID, broker.ID))
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}
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}
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}
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return broker, nil
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}
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func (r *Request) HasResponse() bool {
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return r.Acks != 0
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}
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type RequestTopic struct {
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Topic string `kafka:"min=v0,max=v8"`
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Partitions []RequestPartition `kafka:"min=v0,max=v8"`
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}
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type RequestPartition struct {
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Partition int32 `kafka:"min=v0,max=v8"`
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RecordSet protocol.RawRecordSet `kafka:"min=v0,max=v8"`
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}
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var (
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_ protocol.BrokerMessage = (*Request)(nil)
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)
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type Error struct {
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Err error
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}
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func NewError(err error) *Error {
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return &Error{Err: err}
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}
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func (e *Error) Error() string {
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return fmt.Sprintf("fetch request error: %v", e.Err)
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}
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func (e *Error) Unwrap() error {
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return e.Err
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}
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