William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 1 | package sarama |
| 2 | |
| 3 | type MetadataRequest struct { |
| 4 | Version int16 |
| 5 | Topics []string |
| 6 | AllowAutoTopicCreation bool |
| 7 | } |
| 8 | |
| 9 | func (r *MetadataRequest) encode(pe packetEncoder) error { |
| 10 | if r.Version < 0 || r.Version > 5 { |
| 11 | return PacketEncodingError{"invalid or unsupported MetadataRequest version field"} |
| 12 | } |
| 13 | if r.Version == 0 || len(r.Topics) > 0 { |
| 14 | err := pe.putArrayLength(len(r.Topics)) |
| 15 | if err != nil { |
| 16 | return err |
| 17 | } |
| 18 | |
| 19 | for i := range r.Topics { |
| 20 | err = pe.putString(r.Topics[i]) |
| 21 | if err != nil { |
| 22 | return err |
| 23 | } |
| 24 | } |
| 25 | } else { |
| 26 | pe.putInt32(-1) |
| 27 | } |
| 28 | if r.Version > 3 { |
| 29 | pe.putBool(r.AllowAutoTopicCreation) |
| 30 | } |
| 31 | return nil |
| 32 | } |
| 33 | |
| 34 | func (r *MetadataRequest) decode(pd packetDecoder, version int16) error { |
| 35 | r.Version = version |
| 36 | size, err := pd.getInt32() |
| 37 | if err != nil { |
| 38 | return err |
| 39 | } |
Abhilash S.L | 3b49463 | 2019-07-16 15:51:09 +0530 | [diff] [blame] | 40 | if size > 0 { |
| 41 | r.Topics = make([]string, size) |
William Kurkian | ea86948 | 2019-04-09 15:16:11 -0400 | [diff] [blame] | 42 | for i := range r.Topics { |
| 43 | topic, err := pd.getString() |
| 44 | if err != nil { |
| 45 | return err |
| 46 | } |
| 47 | r.Topics[i] = topic |
| 48 | } |
| 49 | } |
| 50 | if r.Version > 3 { |
| 51 | autoCreation, err := pd.getBool() |
| 52 | if err != nil { |
| 53 | return err |
| 54 | } |
| 55 | r.AllowAutoTopicCreation = autoCreation |
| 56 | } |
| 57 | return nil |
| 58 | } |
| 59 | |
| 60 | func (r *MetadataRequest) key() int16 { |
| 61 | return 3 |
| 62 | } |
| 63 | |
| 64 | func (r *MetadataRequest) version() int16 { |
| 65 | return r.Version |
| 66 | } |
| 67 | |
| 68 | func (r *MetadataRequest) requiredVersion() KafkaVersion { |
| 69 | switch r.Version { |
| 70 | case 1: |
| 71 | return V0_10_0_0 |
| 72 | case 2: |
| 73 | return V0_10_1_0 |
| 74 | case 3, 4: |
| 75 | return V0_11_0_0 |
| 76 | case 5: |
| 77 | return V1_0_0_0 |
| 78 | default: |
| 79 | return MinVersion |
| 80 | } |
| 81 | } |