kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 1 | package sarama |
| 2 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 3 | // ConsumerGroupMemberMetadata holds the metadata for consumer group |
| 4 | // https://github.com/apache/kafka/blob/trunk/clients/src/main/resources/common/message/ConsumerProtocolSubscription.json |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 5 | type ConsumerGroupMemberMetadata struct { |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 6 | Version int16 |
| 7 | Topics []string |
| 8 | UserData []byte |
| 9 | OwnedPartitions []*OwnedPartition |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 10 | } |
| 11 | |
| 12 | func (m *ConsumerGroupMemberMetadata) encode(pe packetEncoder) error { |
| 13 | pe.putInt16(m.Version) |
| 14 | |
| 15 | if err := pe.putStringArray(m.Topics); err != nil { |
| 16 | return err |
| 17 | } |
| 18 | |
| 19 | if err := pe.putBytes(m.UserData); err != nil { |
| 20 | return err |
| 21 | } |
| 22 | |
| 23 | return nil |
| 24 | } |
| 25 | |
| 26 | func (m *ConsumerGroupMemberMetadata) decode(pd packetDecoder) (err error) { |
| 27 | if m.Version, err = pd.getInt16(); err != nil { |
| 28 | return |
| 29 | } |
| 30 | |
| 31 | if m.Topics, err = pd.getStringArray(); err != nil { |
| 32 | return |
| 33 | } |
| 34 | |
| 35 | if m.UserData, err = pd.getBytes(); err != nil { |
| 36 | return |
| 37 | } |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 38 | if m.Version >= 1 { |
| 39 | n, err := pd.getArrayLength() |
| 40 | if err != nil { |
| 41 | // permit missing data here in case of misbehaving 3rd party |
| 42 | // clients who incorrectly marked the member metadata as V1 in |
| 43 | // their JoinGroup request |
| 44 | if err == ErrInsufficientData { |
| 45 | return nil |
| 46 | } |
| 47 | return err |
| 48 | } |
| 49 | if n == 0 { |
| 50 | return nil |
| 51 | } |
| 52 | m.OwnedPartitions = make([]*OwnedPartition, n) |
| 53 | for i := 0; i < n; i++ { |
| 54 | m.OwnedPartitions[i] = &OwnedPartition{} |
| 55 | if err := m.OwnedPartitions[i].decode(pd); err != nil { |
| 56 | return err |
| 57 | } |
| 58 | } |
| 59 | } |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 60 | |
| 61 | return nil |
| 62 | } |
| 63 | |
kesavand | c71914f | 2022-03-25 11:19:03 +0530 | [diff] [blame] | 64 | type OwnedPartition struct { |
| 65 | Topic string |
| 66 | Partitions []int32 |
| 67 | } |
| 68 | |
| 69 | func (m *OwnedPartition) decode(pd packetDecoder) (err error) { |
| 70 | if m.Topic, err = pd.getString(); err != nil { |
| 71 | return err |
| 72 | } |
| 73 | if m.Partitions, err = pd.getInt32Array(); err != nil { |
| 74 | return err |
| 75 | } |
| 76 | |
| 77 | return nil |
| 78 | } |
| 79 | |
| 80 | // ConsumerGroupMemberAssignment holds the member assignment for a consume group |
| 81 | // https://github.com/apache/kafka/blob/trunk/clients/src/main/resources/common/message/ConsumerProtocolAssignment.json |
kesavand | 2cde658 | 2020-06-22 04:56:23 -0400 | [diff] [blame] | 82 | type ConsumerGroupMemberAssignment struct { |
| 83 | Version int16 |
| 84 | Topics map[string][]int32 |
| 85 | UserData []byte |
| 86 | } |
| 87 | |
| 88 | func (m *ConsumerGroupMemberAssignment) encode(pe packetEncoder) error { |
| 89 | pe.putInt16(m.Version) |
| 90 | |
| 91 | if err := pe.putArrayLength(len(m.Topics)); err != nil { |
| 92 | return err |
| 93 | } |
| 94 | |
| 95 | for topic, partitions := range m.Topics { |
| 96 | if err := pe.putString(topic); err != nil { |
| 97 | return err |
| 98 | } |
| 99 | if err := pe.putInt32Array(partitions); err != nil { |
| 100 | return err |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | if err := pe.putBytes(m.UserData); err != nil { |
| 105 | return err |
| 106 | } |
| 107 | |
| 108 | return nil |
| 109 | } |
| 110 | |
| 111 | func (m *ConsumerGroupMemberAssignment) decode(pd packetDecoder) (err error) { |
| 112 | if m.Version, err = pd.getInt16(); err != nil { |
| 113 | return |
| 114 | } |
| 115 | |
| 116 | var topicLen int |
| 117 | if topicLen, err = pd.getArrayLength(); err != nil { |
| 118 | return |
| 119 | } |
| 120 | |
| 121 | m.Topics = make(map[string][]int32, topicLen) |
| 122 | for i := 0; i < topicLen; i++ { |
| 123 | var topic string |
| 124 | if topic, err = pd.getString(); err != nil { |
| 125 | return |
| 126 | } |
| 127 | if m.Topics[topic], err = pd.getInt32Array(); err != nil { |
| 128 | return |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | if m.UserData, err = pd.getBytes(); err != nil { |
| 133 | return |
| 134 | } |
| 135 | |
| 136 | return nil |
| 137 | } |