175 lines
3.2 KiB
Go
175 lines
3.2 KiB
Go
package sarama
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type OffsetResponseBlock struct {
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Err KError
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Offsets []int64 // Version 0
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Offset int64 // Version 1
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Timestamp int64 // Version 1
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}
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func (b *OffsetResponseBlock) decode(pd packetDecoder, version int16) (err error) {
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tmp, err := pd.getInt16()
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if err != nil {
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return err
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}
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b.Err = KError(tmp)
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if version == 0 {
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b.Offsets, err = pd.getInt64Array()
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return err
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}
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b.Timestamp, err = pd.getInt64()
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if err != nil {
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return err
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}
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b.Offset, err = pd.getInt64()
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if err != nil {
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return err
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}
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// For backwards compatibility put the offset in the offsets array too
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b.Offsets = []int64{b.Offset}
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return nil
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}
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func (b *OffsetResponseBlock) encode(pe packetEncoder, version int16) (err error) {
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pe.putInt16(int16(b.Err))
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if version == 0 {
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return pe.putInt64Array(b.Offsets)
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}
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pe.putInt64(b.Timestamp)
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pe.putInt64(b.Offset)
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return nil
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}
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type OffsetResponse struct {
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Version int16
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Blocks map[string]map[int32]*OffsetResponseBlock
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}
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func (r *OffsetResponse) decode(pd packetDecoder, version int16) (err error) {
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numTopics, 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 = make(map[string]map[int32]*OffsetResponseBlock, numTopics)
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for i := 0; i < numTopics; i++ {
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name, err := pd.getString()
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if err != nil {
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return err
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}
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numBlocks, 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[name] = make(map[int32]*OffsetResponseBlock, numBlocks)
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for j := 0; j < numBlocks; j++ {
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id, 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 := new(OffsetResponseBlock)
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err = block.decode(pd, version)
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if err != nil {
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return err
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}
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r.Blocks[name][id] = 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 *OffsetResponse) GetBlock(topic string, partition int32) *OffsetResponseBlock {
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if r.Blocks == nil {
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return nil
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}
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if r.Blocks[topic] == nil {
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return nil
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}
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return r.Blocks[topic][partition]
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}
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/*
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// [0 0 0 1 ntopics
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0 8 109 121 95 116 111 112 105 99 topic
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0 0 0 1 npartitions
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0 0 0 0 id
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0 0
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0 0 0 1 0 0 0 0
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0 1 1 1 0 0 0 1
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0 8 109 121 95 116 111 112
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105 99 0 0 0 1 0 0
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0 0 0 0 0 0 0 1
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0 0 0 0 0 1 1 1] <nil>
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*/
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func (r *OffsetResponse) encode(pe packetEncoder) (err error) {
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if err = pe.putArrayLength(len(r.Blocks)); 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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if err = pe.putString(topic); err != nil {
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return err
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}
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if err = pe.putArrayLength(len(partitions)); 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 *OffsetResponse) key() int16 {
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return 2
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}
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func (r *OffsetResponse) version() int16 {
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return r.Version
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}
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func (r *OffsetResponse) 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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// testing API
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func (r *OffsetResponse) AddTopicPartition(topic string, partition int32, offset int64) {
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if r.Blocks == nil {
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r.Blocks = make(map[string]map[int32]*OffsetResponseBlock)
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}
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byTopic, ok := r.Blocks[topic]
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if !ok {
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byTopic = make(map[int32]*OffsetResponseBlock)
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r.Blocks[topic] = byTopic
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}
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byTopic[partition] = &OffsetResponseBlock{Offsets: []int64{offset}, Offset: offset}
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}
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