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package sarama
import "time"
type OffsetFetchResponseBlock struct {
Offset int64
LeaderEpoch int32
Metadata string
Err KError
}
func (b *OffsetFetchResponseBlock) decode(pd packetDecoder, version int16) (err error) {
b.Offset, err = pd.getInt64()
if err != nil {
return err
}
if version >= 5 {
b.LeaderEpoch, err = pd.getInt32()
if err != nil {
return err
}
} else {
b.LeaderEpoch = -1
}
b.Metadata, err = pd.getString()
if err != nil {
return err
}
b.Err, err = pd.getKError()
if err != nil {
return err
}
_, err = pd.getEmptyTaggedFieldArray()
return err
}
func (b *OffsetFetchResponseBlock) encode(pe packetEncoder, version int16) (err error) {
pe.putInt64(b.Offset)
if version >= 5 {
pe.putInt32(b.LeaderEpoch)
}
err = pe.putString(b.Metadata)
if err != nil {
return err
}
pe.putKError(b.Err)
pe.putEmptyTaggedFieldArray()
return nil
}
type OffsetFetchResponse struct {
Version int16
ThrottleTimeMs int32
Blocks map[string]map[int32]*OffsetFetchResponseBlock
Err KError
}
func (r *OffsetFetchResponse) setVersion(v int16) {
r.Version = v
}
func (r *OffsetFetchResponse) encode(pe packetEncoder) (err error) {
if r.Version >= 3 {
pe.putInt32(r.ThrottleTimeMs)
}
err = pe.putArrayLength(len(r.Blocks))
if err != nil {
return err
}
for topic, partitions := range r.Blocks {
err = pe.putString(topic)
if err != nil {
return err
}
err = pe.putArrayLength(len(partitions))
if err != nil {
return err
}
for partition, block := range partitions {
pe.putInt32(partition)
if err := block.encode(pe, r.Version); err != nil {
return err
}
}
pe.putEmptyTaggedFieldArray()
}
if r.Version >= 2 {
pe.putKError(r.Err)
}
pe.putEmptyTaggedFieldArray()
return nil
}
func (r *OffsetFetchResponse) decode(pd packetDecoder, version int16) (err error) {
r.Version = version
if version >= 3 {
r.ThrottleTimeMs, err = pd.getInt32()
if err != nil {
return err
}
}
numTopics, err := pd.getArrayLength()
if err != nil {
return err
}
if numTopics > 0 {
r.Blocks = make(map[string]map[int32]*OffsetFetchResponseBlock, numTopics)
for i := 0; i < numTopics; i++ {
name, err := pd.getString()
if err != nil {
return err
}
numBlocks, err := pd.getArrayLength()
if err != nil {
return err
}
r.Blocks[name] = nil
if numBlocks > 0 {
r.Blocks[name] = make(map[int32]*OffsetFetchResponseBlock, numBlocks)
}
for j := 0; j < numBlocks; j++ {
id, err := pd.getInt32()
if err != nil {
return err
}
block := new(OffsetFetchResponseBlock)
err = block.decode(pd, version)
if err != nil {
return err
}
r.Blocks[name][id] = block
}
if _, err := pd.getEmptyTaggedFieldArray(); err != nil {
return err
}
}
}
if version >= 2 {
r.Err, err = pd.getKError()
if err != nil {
return err
}
}
_, err = pd.getEmptyTaggedFieldArray()
return err
}
func (r *OffsetFetchResponse) key() int16 {
return apiKeyOffsetFetch
}
func (r *OffsetFetchResponse) version() int16 {
return r.Version
}
func (r *OffsetFetchResponse) headerVersion() int16 {
if r.Version >= 6 {
return 1
}
return 0
}
func (r *OffsetFetchResponse) isValidVersion() bool {
return r.Version >= 0 && r.Version <= 7
}
func (r *OffsetFetchResponse) isFlexible() bool {
return r.isFlexibleVersion(r.Version)
}
func (r *OffsetFetchResponse) isFlexibleVersion(version int16) bool {
return version >= 6
}
func (r *OffsetFetchResponse) requiredVersion() KafkaVersion {
switch r.Version {
case 7:
return V2_5_0_0
case 6:
return V2_4_0_0
case 5:
return V2_1_0_0
case 4:
return V2_0_0_0
case 3:
return V0_11_0_0
case 2:
return V0_10_2_0
case 1:
return V0_8_2_0
case 0:
return V0_8_2_0
default:
return V2_5_0_0
}
}
func (r *OffsetFetchResponse) throttleTime() time.Duration {
return time.Duration(r.ThrottleTimeMs) * time.Millisecond
}
func (r *OffsetFetchResponse) GetBlock(topic string, partition int32) *OffsetFetchResponseBlock {
if r.Blocks == nil {
return nil
}
if r.Blocks[topic] == nil {
return nil
}
return r.Blocks[topic][partition]
}
func (r *OffsetFetchResponse) AddBlock(topic string, partition int32, block *OffsetFetchResponseBlock) {
if r.Blocks == nil {
r.Blocks = make(map[string]map[int32]*OffsetFetchResponseBlock)
}
partitions := r.Blocks[topic]
if partitions == nil {
partitions = make(map[int32]*OffsetFetchResponseBlock)
r.Blocks[topic] = partitions
}
partitions[partition] = block
}
|
