William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 1 | package sarama |
| 2 | |
| 3 | type OffsetFetchRequest struct { |
| 4 | Version int16 |
| 5 | ConsumerGroup string |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 6 | RequireStable bool // requires v7+ |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 7 | partitions map[string][]int32 |
| 8 | } |
| 9 | |
| 10 | func (r *OffsetFetchRequest) encode(pe packetEncoder) (err error) { |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 11 | if r.Version < 0 || r.Version > 7 { |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 12 | return PacketEncodingError{"invalid or unsupported OffsetFetchRequest version field"} |
| 13 | } |
| 14 | |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 15 | isFlexible := r.Version >= 6 |
| 16 | |
| 17 | if isFlexible { |
| 18 | err = pe.putCompactString(r.ConsumerGroup) |
| 19 | } else { |
| 20 | err = pe.putString(r.ConsumerGroup) |
| 21 | } |
| 22 | if err != nil { |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 23 | return err |
| 24 | } |
| 25 | |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 26 | if isFlexible { |
| 27 | if r.partitions == nil { |
| 28 | pe.putUVarint(0) |
| 29 | } else { |
| 30 | pe.putCompactArrayLength(len(r.partitions)) |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 31 | } |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 32 | } else { |
| 33 | if r.partitions == nil && r.Version >= 2 { |
| 34 | pe.putInt32(-1) |
| 35 | } else { |
| 36 | if err = pe.putArrayLength(len(r.partitions)); err != nil { |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 37 | return err |
| 38 | } |
| 39 | } |
| 40 | } |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 41 | |
| 42 | for topic, partitions := range r.partitions { |
| 43 | if isFlexible { |
| 44 | err = pe.putCompactString(topic) |
| 45 | } else { |
| 46 | err = pe.putString(topic) |
| 47 | } |
| 48 | if err != nil { |
| 49 | return err |
| 50 | } |
| 51 | |
| 52 | // |
| 53 | |
| 54 | if isFlexible { |
| 55 | err = pe.putCompactInt32Array(partitions) |
| 56 | } else { |
| 57 | err = pe.putInt32Array(partitions) |
| 58 | } |
| 59 | if err != nil { |
| 60 | return err |
| 61 | } |
| 62 | |
| 63 | if isFlexible { |
| 64 | pe.putEmptyTaggedFieldArray() |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | if r.RequireStable && r.Version < 7 { |
| 69 | return PacketEncodingError{"requireStable is not supported. use version 7 or later"} |
| 70 | } |
| 71 | |
| 72 | if r.Version >= 7 { |
| 73 | pe.putBool(r.RequireStable) |
| 74 | } |
| 75 | |
| 76 | if isFlexible { |
| 77 | pe.putEmptyTaggedFieldArray() |
| 78 | } |
| 79 | |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 80 | return nil |
| 81 | } |
| 82 | |
| 83 | func (r *OffsetFetchRequest) decode(pd packetDecoder, version int16) (err error) { |
| 84 | r.Version = version |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 85 | isFlexible := r.Version >= 6 |
| 86 | if isFlexible { |
| 87 | r.ConsumerGroup, err = pd.getCompactString() |
| 88 | } else { |
| 89 | r.ConsumerGroup, err = pd.getString() |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 90 | } |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 91 | if err != nil { |
| 92 | return err |
| 93 | } |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 94 | |
| 95 | var partitionCount int |
| 96 | |
| 97 | if isFlexible { |
| 98 | partitionCount, err = pd.getCompactArrayLength() |
| 99 | } else { |
| 100 | partitionCount, err = pd.getArrayLength() |
| 101 | } |
| 102 | if err != nil { |
| 103 | return err |
| 104 | } |
| 105 | |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 106 | if (partitionCount == 0 && version < 2) || partitionCount < 0 { |
| 107 | return nil |
| 108 | } |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 109 | |
| 110 | r.partitions = make(map[string][]int32, partitionCount) |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 111 | for i := 0; i < partitionCount; i++ { |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 112 | var topic string |
| 113 | if isFlexible { |
| 114 | topic, err = pd.getCompactString() |
| 115 | } else { |
| 116 | topic, err = pd.getString() |
| 117 | } |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 118 | if err != nil { |
| 119 | return err |
| 120 | } |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 121 | |
| 122 | var partitions []int32 |
| 123 | if isFlexible { |
| 124 | partitions, err = pd.getCompactInt32Array() |
| 125 | } else { |
| 126 | partitions, err = pd.getInt32Array() |
| 127 | } |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 128 | if err != nil { |
| 129 | return err |
| 130 | } |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 131 | if isFlexible { |
| 132 | _, err = pd.getEmptyTaggedFieldArray() |
| 133 | if err != nil { |
| 134 | return err |
| 135 | } |
| 136 | } |
| 137 | |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 138 | r.partitions[topic] = partitions |
| 139 | } |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 140 | |
| 141 | if r.Version >= 7 { |
| 142 | r.RequireStable, err = pd.getBool() |
| 143 | if err != nil { |
| 144 | return err |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | if isFlexible { |
| 149 | _, err = pd.getEmptyTaggedFieldArray() |
| 150 | if err != nil { |
| 151 | return err |
| 152 | } |
| 153 | } |
| 154 | |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 155 | return nil |
| 156 | } |
| 157 | |
| 158 | func (r *OffsetFetchRequest) key() int16 { |
| 159 | return 9 |
| 160 | } |
| 161 | |
| 162 | func (r *OffsetFetchRequest) version() int16 { |
| 163 | return r.Version |
| 164 | } |
| 165 | |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 166 | func (r *OffsetFetchRequest) headerVersion() int16 { |
| 167 | if r.Version >= 6 { |
| 168 | return 2 |
| 169 | } |
| 170 | |
| 171 | return 1 |
| 172 | } |
| 173 | |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 174 | func (r *OffsetFetchRequest) requiredVersion() KafkaVersion { |
| 175 | switch r.Version { |
| 176 | case 1: |
| 177 | return V0_8_2_0 |
| 178 | case 2: |
| 179 | return V0_10_2_0 |
| 180 | case 3: |
| 181 | return V0_11_0_0 |
| 182 | case 4: |
| 183 | return V2_0_0_0 |
| 184 | case 5: |
| 185 | return V2_1_0_0 |
khenaidoo | 106c61a | 2021-08-11 18:05:46 -0400 | [diff] [blame] | 186 | case 6: |
| 187 | return V2_4_0_0 |
| 188 | case 7: |
| 189 | return V2_5_0_0 |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 190 | default: |
| 191 | return MinVersion |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | func (r *OffsetFetchRequest) ZeroPartitions() { |
| 196 | if r.partitions == nil && r.Version >= 2 { |
| 197 | r.partitions = make(map[string][]int32) |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | func (r *OffsetFetchRequest) AddPartition(topic string, partitionID int32) { |
| 202 | if r.partitions == nil { |
| 203 | r.partitions = make(map[string][]int32) |
| 204 | } |
| 205 | |
| 206 | r.partitions[topic] = append(r.partitions[topic], partitionID) |
| 207 | } |