| package sarama |
| |
| type OffsetResponseBlock struct { |
| Err KError |
| Offsets []int64 // Version 0 |
| Offset int64 // Version 1 |
| Timestamp int64 // Version 1 |
| } |
| |
| func (b *OffsetResponseBlock) decode(pd packetDecoder, version int16) (err error) { |
| tmp, err := pd.getInt16() |
| if err != nil { |
| return err |
| } |
| b.Err = KError(tmp) |
| |
| if version == 0 { |
| b.Offsets, err = pd.getInt64Array() |
| |
| return err |
| } |
| |
| b.Timestamp, err = pd.getInt64() |
| if err != nil { |
| return err |
| } |
| |
| b.Offset, err = pd.getInt64() |
| if err != nil { |
| return err |
| } |
| |
| // For backwards compatibility put the offset in the offsets array too |
| b.Offsets = []int64{b.Offset} |
| |
| return nil |
| } |
| |
| func (b *OffsetResponseBlock) encode(pe packetEncoder, version int16) (err error) { |
| pe.putInt16(int16(b.Err)) |
| |
| if version == 0 { |
| return pe.putInt64Array(b.Offsets) |
| } |
| |
| pe.putInt64(b.Timestamp) |
| pe.putInt64(b.Offset) |
| |
| return nil |
| } |
| |
| type OffsetResponse struct { |
| Version int16 |
| Blocks map[string]map[int32]*OffsetResponseBlock |
| } |
| |
| func (r *OffsetResponse) decode(pd packetDecoder, version int16) (err error) { |
| numTopics, err := pd.getArrayLength() |
| if err != nil { |
| return err |
| } |
| |
| r.Blocks = make(map[string]map[int32]*OffsetResponseBlock, 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] = make(map[int32]*OffsetResponseBlock, numBlocks) |
| |
| for j := 0; j < numBlocks; j++ { |
| id, err := pd.getInt32() |
| if err != nil { |
| return err |
| } |
| |
| block := new(OffsetResponseBlock) |
| err = block.decode(pd, version) |
| if err != nil { |
| return err |
| } |
| r.Blocks[name][id] = block |
| } |
| } |
| |
| return nil |
| } |
| |
| func (r *OffsetResponse) GetBlock(topic string, partition int32) *OffsetResponseBlock { |
| if r.Blocks == nil { |
| return nil |
| } |
| |
| if r.Blocks[topic] == nil { |
| return nil |
| } |
| |
| return r.Blocks[topic][partition] |
| } |
| |
| /* |
| // [0 0 0 1 ntopics |
| 0 8 109 121 95 116 111 112 105 99 topic |
| 0 0 0 1 npartitions |
| 0 0 0 0 id |
| 0 0 |
| |
| 0 0 0 1 0 0 0 0 |
| 0 1 1 1 0 0 0 1 |
| 0 8 109 121 95 116 111 112 |
| 105 99 0 0 0 1 0 0 |
| 0 0 0 0 0 0 0 1 |
| 0 0 0 0 0 1 1 1] <nil> |
| |
| */ |
| func (r *OffsetResponse) encode(pe packetEncoder) (err error) { |
| 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 |
| } |
| } |
| } |
| |
| return nil |
| } |
| |
| func (r *OffsetResponse) key() int16 { |
| return 2 |
| } |
| |
| func (r *OffsetResponse) version() int16 { |
| return r.Version |
| } |
| |
| func (r *OffsetResponse) requiredVersion() KafkaVersion { |
| switch r.Version { |
| case 1: |
| return V0_10_1_0 |
| default: |
| return MinVersion |
| } |
| } |
| |
| // testing API |
| |
| func (r *OffsetResponse) AddTopicPartition(topic string, partition int32, offset int64) { |
| if r.Blocks == nil { |
| r.Blocks = make(map[string]map[int32]*OffsetResponseBlock) |
| } |
| byTopic, ok := r.Blocks[topic] |
| if !ok { |
| byTopic = make(map[int32]*OffsetResponseBlock) |
| r.Blocks[topic] = byTopic |
| } |
| byTopic[partition] = &OffsetResponseBlock{Offsets: []int64{offset}, Offset: offset} |
| } |