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