| khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame^] | 1 | package sarama |
| 2 | |
| 3 | type topicPartitionAssignment struct { |
| 4 | Topic string |
| 5 | Partition int32 |
| 6 | } |
| 7 | |
| 8 | type StickyAssignorUserData interface { |
| 9 | partitions() []topicPartitionAssignment |
| 10 | hasGeneration() bool |
| 11 | generation() int |
| 12 | } |
| 13 | |
| 14 | // StickyAssignorUserDataV0 holds topic partition information for an assignment |
| 15 | type StickyAssignorUserDataV0 struct { |
| 16 | Topics map[string][]int32 |
| 17 | |
| 18 | topicPartitions []topicPartitionAssignment |
| 19 | } |
| 20 | |
| 21 | func (m *StickyAssignorUserDataV0) encode(pe packetEncoder) error { |
| 22 | if err := pe.putArrayLength(len(m.Topics)); err != nil { |
| 23 | return err |
| 24 | } |
| 25 | |
| 26 | for topic, partitions := range m.Topics { |
| 27 | if err := pe.putString(topic); err != nil { |
| 28 | return err |
| 29 | } |
| 30 | if err := pe.putInt32Array(partitions); err != nil { |
| 31 | return err |
| 32 | } |
| 33 | } |
| 34 | return nil |
| 35 | } |
| 36 | |
| 37 | func (m *StickyAssignorUserDataV0) decode(pd packetDecoder) (err error) { |
| 38 | var topicLen int |
| 39 | if topicLen, err = pd.getArrayLength(); err != nil { |
| 40 | return |
| 41 | } |
| 42 | |
| 43 | m.Topics = make(map[string][]int32, topicLen) |
| 44 | for i := 0; i < topicLen; i++ { |
| 45 | var topic string |
| 46 | if topic, err = pd.getString(); err != nil { |
| 47 | return |
| 48 | } |
| 49 | if m.Topics[topic], err = pd.getInt32Array(); err != nil { |
| 50 | return |
| 51 | } |
| 52 | } |
| 53 | m.topicPartitions = populateTopicPartitions(m.Topics) |
| 54 | return nil |
| 55 | } |
| 56 | |
| 57 | func (m *StickyAssignorUserDataV0) partitions() []topicPartitionAssignment { return m.topicPartitions } |
| 58 | func (m *StickyAssignorUserDataV0) hasGeneration() bool { return false } |
| 59 | func (m *StickyAssignorUserDataV0) generation() int { return defaultGeneration } |
| 60 | |
| 61 | // StickyAssignorUserDataV1 holds topic partition information for an assignment |
| 62 | type StickyAssignorUserDataV1 struct { |
| 63 | Topics map[string][]int32 |
| 64 | Generation int32 |
| 65 | |
| 66 | topicPartitions []topicPartitionAssignment |
| 67 | } |
| 68 | |
| 69 | func (m *StickyAssignorUserDataV1) encode(pe packetEncoder) error { |
| 70 | if err := pe.putArrayLength(len(m.Topics)); err != nil { |
| 71 | return err |
| 72 | } |
| 73 | |
| 74 | for topic, partitions := range m.Topics { |
| 75 | if err := pe.putString(topic); err != nil { |
| 76 | return err |
| 77 | } |
| 78 | if err := pe.putInt32Array(partitions); err != nil { |
| 79 | return err |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | pe.putInt32(m.Generation) |
| 84 | return nil |
| 85 | } |
| 86 | |
| 87 | func (m *StickyAssignorUserDataV1) decode(pd packetDecoder) (err error) { |
| 88 | var topicLen int |
| 89 | if topicLen, err = pd.getArrayLength(); err != nil { |
| 90 | return |
| 91 | } |
| 92 | |
| 93 | m.Topics = make(map[string][]int32, topicLen) |
| 94 | for i := 0; i < topicLen; i++ { |
| 95 | var topic string |
| 96 | if topic, err = pd.getString(); err != nil { |
| 97 | return |
| 98 | } |
| 99 | if m.Topics[topic], err = pd.getInt32Array(); err != nil { |
| 100 | return |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | m.Generation, err = pd.getInt32() |
| 105 | if err != nil { |
| 106 | return err |
| 107 | } |
| 108 | m.topicPartitions = populateTopicPartitions(m.Topics) |
| 109 | return nil |
| 110 | } |
| 111 | |
| 112 | func (m *StickyAssignorUserDataV1) partitions() []topicPartitionAssignment { return m.topicPartitions } |
| 113 | func (m *StickyAssignorUserDataV1) hasGeneration() bool { return true } |
| 114 | func (m *StickyAssignorUserDataV1) generation() int { return int(m.Generation) } |
| 115 | |
| 116 | func populateTopicPartitions(topics map[string][]int32) []topicPartitionAssignment { |
| 117 | topicPartitions := make([]topicPartitionAssignment, 0) |
| 118 | for topic, partitions := range topics { |
| 119 | for _, partition := range partitions { |
| 120 | topicPartitions = append(topicPartitions, topicPartitionAssignment{Topic: topic, Partition: partition}) |
| 121 | } |
| 122 | } |
| 123 | return topicPartitions |
| 124 | } |