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join_group_response.go
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/
join_group_response.go
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package sarama
type JoinGroupResponse struct {
Version int16
ThrottleTime int32
Err KError
GenerationId int32
GroupProtocol string
LeaderId string
MemberId string
Members []GroupMember
}
type GroupMember struct {
MemberId string
GroupInstanceId *string
Metadata []byte
}
func (r *JoinGroupResponse) GetMembers() (map[string]ConsumerGroupMemberMetadata, error) {
members := make(map[string]ConsumerGroupMemberMetadata, len(r.Members))
for _, member := range r.Members {
meta := new(ConsumerGroupMemberMetadata)
if err := decode(member.Metadata, meta, nil); err != nil {
return nil, err
}
members[member.MemberId] = *meta
}
return members, nil
}
func (r *JoinGroupResponse) encode(pe packetEncoder) error {
if r.Version >= 2 {
pe.putInt32(r.ThrottleTime)
}
pe.putInt16(int16(r.Err))
pe.putInt32(r.GenerationId)
if err := pe.putString(r.GroupProtocol); err != nil {
return err
}
if err := pe.putString(r.LeaderId); err != nil {
return err
}
if err := pe.putString(r.MemberId); err != nil {
return err
}
if err := pe.putArrayLength(len(r.Members)); err != nil {
return err
}
for _, member := range r.Members {
if err := pe.putString(member.MemberId); err != nil {
return err
}
if r.Version >= 5 {
if err := pe.putNullableString(member.GroupInstanceId); err != nil {
return err
}
}
if err := pe.putBytes(member.Metadata); err != nil {
return err
}
}
return nil
}
func (r *JoinGroupResponse) decode(pd packetDecoder, version int16) (err error) {
r.Version = version
if version >= 2 {
if r.ThrottleTime, err = pd.getInt32(); err != nil {
return
}
}
kerr, err := pd.getInt16()
if err != nil {
return err
}
r.Err = KError(kerr)
if r.GenerationId, err = pd.getInt32(); err != nil {
return
}
if r.GroupProtocol, err = pd.getString(); err != nil {
return
}
if r.LeaderId, err = pd.getString(); err != nil {
return
}
if r.MemberId, err = pd.getString(); err != nil {
return
}
n, err := pd.getArrayLength()
if err != nil {
return err
}
if n == 0 {
return nil
}
r.Members = make([]GroupMember, n)
for i := 0; i < n; i++ {
memberId, err := pd.getString()
if err != nil {
return err
}
var groupInstanceId *string = nil
if r.Version >= 5 {
groupInstanceId, err = pd.getNullableString()
if err != nil {
return err
}
}
memberMetadata, err := pd.getBytes()
if err != nil {
return err
}
r.Members[i] = GroupMember{MemberId: memberId, GroupInstanceId: groupInstanceId, Metadata: memberMetadata}
}
return nil
}
func (r *JoinGroupResponse) key() int16 {
return 11
}
func (r *JoinGroupResponse) version() int16 {
return r.Version
}
func (r *JoinGroupResponse) headerVersion() int16 {
return 0
}
func (r *JoinGroupResponse) requiredVersion() KafkaVersion {
switch r.Version {
case 3, 4, 5:
return V2_3_0_0
case 2:
return V0_11_0_0
case 1:
return V0_10_1_0
default:
return V0_9_0_0
}
}