Scott Baker | 2d89798 | 2019-09-24 11:50:08 -0700 | [diff] [blame^] | 1 | package sarama |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "time" |
| 6 | ) |
| 7 | |
| 8 | type ProduceResponseBlock struct { |
| 9 | Err KError |
| 10 | Offset int64 |
| 11 | // only provided if Version >= 2 and the broker is configured with `LogAppendTime` |
| 12 | Timestamp time.Time |
| 13 | } |
| 14 | |
| 15 | func (b *ProduceResponseBlock) decode(pd packetDecoder, version int16) (err error) { |
| 16 | tmp, err := pd.getInt16() |
| 17 | if err != nil { |
| 18 | return err |
| 19 | } |
| 20 | b.Err = KError(tmp) |
| 21 | |
| 22 | b.Offset, err = pd.getInt64() |
| 23 | if err != nil { |
| 24 | return err |
| 25 | } |
| 26 | |
| 27 | if version >= 2 { |
| 28 | if millis, err := pd.getInt64(); err != nil { |
| 29 | return err |
| 30 | } else if millis != -1 { |
| 31 | b.Timestamp = time.Unix(millis/1000, (millis%1000)*int64(time.Millisecond)) |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | return nil |
| 36 | } |
| 37 | |
| 38 | func (b *ProduceResponseBlock) encode(pe packetEncoder, version int16) (err error) { |
| 39 | pe.putInt16(int16(b.Err)) |
| 40 | pe.putInt64(b.Offset) |
| 41 | |
| 42 | if version >= 2 { |
| 43 | timestamp := int64(-1) |
| 44 | if !b.Timestamp.Before(time.Unix(0, 0)) { |
| 45 | timestamp = b.Timestamp.UnixNano() / int64(time.Millisecond) |
| 46 | } else if !b.Timestamp.IsZero() { |
| 47 | return PacketEncodingError{fmt.Sprintf("invalid timestamp (%v)", b.Timestamp)} |
| 48 | } |
| 49 | pe.putInt64(timestamp) |
| 50 | } |
| 51 | |
| 52 | return nil |
| 53 | } |
| 54 | |
| 55 | type ProduceResponse struct { |
| 56 | Blocks map[string]map[int32]*ProduceResponseBlock |
| 57 | Version int16 |
| 58 | ThrottleTime time.Duration // only provided if Version >= 1 |
| 59 | } |
| 60 | |
| 61 | func (r *ProduceResponse) decode(pd packetDecoder, version int16) (err error) { |
| 62 | r.Version = version |
| 63 | |
| 64 | numTopics, err := pd.getArrayLength() |
| 65 | if err != nil { |
| 66 | return err |
| 67 | } |
| 68 | |
| 69 | r.Blocks = make(map[string]map[int32]*ProduceResponseBlock, numTopics) |
| 70 | for i := 0; i < numTopics; i++ { |
| 71 | name, err := pd.getString() |
| 72 | if err != nil { |
| 73 | return err |
| 74 | } |
| 75 | |
| 76 | numBlocks, err := pd.getArrayLength() |
| 77 | if err != nil { |
| 78 | return err |
| 79 | } |
| 80 | |
| 81 | r.Blocks[name] = make(map[int32]*ProduceResponseBlock, numBlocks) |
| 82 | |
| 83 | for j := 0; j < numBlocks; j++ { |
| 84 | id, err := pd.getInt32() |
| 85 | if err != nil { |
| 86 | return err |
| 87 | } |
| 88 | |
| 89 | block := new(ProduceResponseBlock) |
| 90 | err = block.decode(pd, version) |
| 91 | if err != nil { |
| 92 | return err |
| 93 | } |
| 94 | r.Blocks[name][id] = block |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | if r.Version >= 1 { |
| 99 | millis, err := pd.getInt32() |
| 100 | if err != nil { |
| 101 | return err |
| 102 | } |
| 103 | |
| 104 | r.ThrottleTime = time.Duration(millis) * time.Millisecond |
| 105 | } |
| 106 | |
| 107 | return nil |
| 108 | } |
| 109 | |
| 110 | func (r *ProduceResponse) encode(pe packetEncoder) error { |
| 111 | err := pe.putArrayLength(len(r.Blocks)) |
| 112 | if err != nil { |
| 113 | return err |
| 114 | } |
| 115 | for topic, partitions := range r.Blocks { |
| 116 | err = pe.putString(topic) |
| 117 | if err != nil { |
| 118 | return err |
| 119 | } |
| 120 | err = pe.putArrayLength(len(partitions)) |
| 121 | if err != nil { |
| 122 | return err |
| 123 | } |
| 124 | for id, prb := range partitions { |
| 125 | pe.putInt32(id) |
| 126 | err = prb.encode(pe, r.Version) |
| 127 | if err != nil { |
| 128 | return err |
| 129 | } |
| 130 | } |
| 131 | } |
| 132 | if r.Version >= 1 { |
| 133 | pe.putInt32(int32(r.ThrottleTime / time.Millisecond)) |
| 134 | } |
| 135 | return nil |
| 136 | } |
| 137 | |
| 138 | func (r *ProduceResponse) key() int16 { |
| 139 | return 0 |
| 140 | } |
| 141 | |
| 142 | func (r *ProduceResponse) version() int16 { |
| 143 | return r.Version |
| 144 | } |
| 145 | |
| 146 | func (r *ProduceResponse) requiredVersion() KafkaVersion { |
| 147 | switch r.Version { |
| 148 | case 1: |
| 149 | return V0_9_0_0 |
| 150 | case 2: |
| 151 | return V0_10_0_0 |
| 152 | case 3: |
| 153 | return V0_11_0_0 |
| 154 | default: |
| 155 | return MinVersion |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | func (r *ProduceResponse) GetBlock(topic string, partition int32) *ProduceResponseBlock { |
| 160 | if r.Blocks == nil { |
| 161 | return nil |
| 162 | } |
| 163 | |
| 164 | if r.Blocks[topic] == nil { |
| 165 | return nil |
| 166 | } |
| 167 | |
| 168 | return r.Blocks[topic][partition] |
| 169 | } |
| 170 | |
| 171 | // Testing API |
| 172 | |
| 173 | func (r *ProduceResponse) AddTopicPartition(topic string, partition int32, err KError) { |
| 174 | if r.Blocks == nil { |
| 175 | r.Blocks = make(map[string]map[int32]*ProduceResponseBlock) |
| 176 | } |
| 177 | byTopic, ok := r.Blocks[topic] |
| 178 | if !ok { |
| 179 | byTopic = make(map[int32]*ProduceResponseBlock) |
| 180 | r.Blocks[topic] = byTopic |
| 181 | } |
| 182 | block := &ProduceResponseBlock{ |
| 183 | Err: err, |
| 184 | } |
| 185 | if r.Version >= 2 { |
| 186 | block.Timestamp = time.Now() |
| 187 | } |
| 188 | byTopic[partition] = block |
| 189 | } |