133 lines
2.6 KiB
Go
133 lines
2.6 KiB
Go
package sarama
|
|
|
|
type offsetRequestBlock struct {
|
|
time int64
|
|
maxOffsets int32 // Only used in version 0
|
|
}
|
|
|
|
func (b *offsetRequestBlock) encode(pe packetEncoder, version int16) error {
|
|
pe.putInt64(int64(b.time))
|
|
if version == 0 {
|
|
pe.putInt32(b.maxOffsets)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (b *offsetRequestBlock) decode(pd packetDecoder, version int16) (err error) {
|
|
if b.time, err = pd.getInt64(); err != nil {
|
|
return err
|
|
}
|
|
if version == 0 {
|
|
if b.maxOffsets, err = pd.getInt32(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type OffsetRequest struct {
|
|
Version int16
|
|
blocks map[string]map[int32]*offsetRequestBlock
|
|
}
|
|
|
|
func (r *OffsetRequest) encode(pe packetEncoder) error {
|
|
pe.putInt32(-1) // replica ID is always -1 for clients
|
|
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
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (r *OffsetRequest) decode(pd packetDecoder, version int16) error {
|
|
r.Version = version
|
|
|
|
// Ignore replica ID
|
|
if _, err := pd.getInt32(); err != nil {
|
|
return err
|
|
}
|
|
blockCount, err := pd.getArrayLength()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if blockCount == 0 {
|
|
return nil
|
|
}
|
|
r.blocks = make(map[string]map[int32]*offsetRequestBlock)
|
|
for i := 0; i < blockCount; i++ {
|
|
topic, err := pd.getString()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
partitionCount, err := pd.getArrayLength()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
r.blocks[topic] = make(map[int32]*offsetRequestBlock)
|
|
for j := 0; j < partitionCount; j++ {
|
|
partition, err := pd.getInt32()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
block := &offsetRequestBlock{}
|
|
if err := block.decode(pd, version); err != nil {
|
|
return err
|
|
}
|
|
r.blocks[topic][partition] = block
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (r *OffsetRequest) key() int16 {
|
|
return 2
|
|
}
|
|
|
|
func (r *OffsetRequest) version() int16 {
|
|
return r.Version
|
|
}
|
|
|
|
func (r *OffsetRequest) requiredVersion() KafkaVersion {
|
|
switch r.Version {
|
|
case 1:
|
|
return V0_10_1_0
|
|
default:
|
|
return MinVersion
|
|
}
|
|
}
|
|
|
|
func (r *OffsetRequest) AddBlock(topic string, partitionID int32, time int64, maxOffsets int32) {
|
|
if r.blocks == nil {
|
|
r.blocks = make(map[string]map[int32]*offsetRequestBlock)
|
|
}
|
|
|
|
if r.blocks[topic] == nil {
|
|
r.blocks[topic] = make(map[int32]*offsetRequestBlock)
|
|
}
|
|
|
|
tmp := new(offsetRequestBlock)
|
|
tmp.time = time
|
|
if r.Version == 0 {
|
|
tmp.maxOffsets = maxOffsets
|
|
}
|
|
|
|
r.blocks[topic][partitionID] = tmp
|
|
}
|