/
offset_fetch_request.go
65 lines (57 loc) · 1.3 KB
/
offset_fetch_request.go
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package protocol
// https://kafka.apache.org/protocol#The_Messages_OffsetFetch
type OffsetFetchRequest struct {
APIVersion int16
GroupID string
Topics []OffsetFetchTopicRequest
}
type OffsetFetchTopicRequest struct {
Topic string
Partitions []int32
}
func (r *OffsetFetchRequest) Encode(e PacketEncoder) (err error) {
if err = e.PutString(r.GroupID); err != nil {
return err
}
if err = e.PutArrayLength(len(r.Topics)); err != nil {
return err
}
for _, oft := range r.Topics {
if err = e.PutString(oft.Topic); err != nil {
return err
}
if err = e.PutInt32Array(oft.Partitions); err != nil {
return err
}
}
return nil
}
func (r *OffsetFetchRequest) Decode(d PacketDecoder, version int16) (err error) {
r.APIVersion = version
r.GroupID, err = d.String()
if err != nil {
return err
}
topicCount, err := d.ArrayLength()
if err != nil {
return err
}
r.Topics = make([]OffsetFetchTopicRequest, topicCount)
for i := range r.Topics {
oft := OffsetFetchTopicRequest{}
if oft.Topic, err = d.String(); err != nil {
return err
}
if oft.Partitions, err = d.Int32Array(); err != nil {
return err
}
r.Topics[i] = oft
}
return nil
}
func (r *OffsetFetchRequest) Key() int16 {
return OffsetFetchKey
}
func (r *OffsetFetchRequest) Version() int16 {
return r.APIVersion
}