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|
package sarama
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
}
}
b.Metadata, err = pd.getString()
if err != nil {
return err
}
tmp, err := pd.getInt16()
if err != nil {
return err
}
b.Err = KError(tmp)
return nil
}
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.putInt16(int16(b.Err))
return nil
}
type OffsetFetchResponse struct {
Version int16
ThrottleTimeMs int32
Blocks map[string]map[int32]*OffsetFetchResponseBlock
Err KError
}
func (r *OffsetFetchResponse) encode(pe packetEncoder) error {
if r.Version >= 3 {
pe.putInt32(r.ThrottleTimeMs)
}
if err := pe.putArrayLength(len(r.Blocks)); err != nil {
return err
}
for topic, partitions := range r.Blocks {
if err := pe.putString(topic); err != nil {
return err
}
if err := pe.putArrayLength(len(partitions)); err != nil {
return err
}
for partition, block := range partitions {
pe.putInt32(partition)
if err := block.encode(pe, r.Version); err != nil {
return err
}
}
}
if r.Version >= 2 {
pe.putInt16(int16(r.Err))
}
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
}
if numBlocks == 0 {
r.Blocks[name] = nil
continue
}
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 version >= 2 {
kerr, err := pd.getInt16()
if err != nil {
return err
}
r.Err = KError(kerr)
}
return nil
}
func (r *OffsetFetchResponse) key() int16 {
return 9
}
func (r *OffsetFetchResponse) version() int16 {
return r.Version
}
func (r *OffsetFetchResponse) requiredVersion() KafkaVersion {
switch r.Version {
case 1:
return V0_8_2_0
case 2:
return V0_10_2_0
case 3:
return V0_11_0_0
case 4:
return V2_0_0_0
case 5:
return V2_1_0_0
default:
return MinVersion
}
}
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
}
|
