89 lines
1.5 KiB
Go
89 lines
1.5 KiB
Go
package sarama
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type MetadataRequest struct {
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Version int16
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Topics []string
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AllowAutoTopicCreation bool
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}
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func (r *MetadataRequest) encode(pe packetEncoder) error {
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if r.Version < 0 || r.Version > 5 {
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return PacketEncodingError{"invalid or unsupported MetadataRequest version field"}
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}
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if r.Version == 0 || len(r.Topics) > 0 {
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err := pe.putArrayLength(len(r.Topics))
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if err != nil {
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return err
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}
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for i := range r.Topics {
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err = pe.putString(r.Topics[i])
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if err != nil {
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return err
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}
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}
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} else {
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pe.putInt32(-1)
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}
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if r.Version > 3 {
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pe.putBool(r.AllowAutoTopicCreation)
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}
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return nil
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}
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func (r *MetadataRequest) decode(pd packetDecoder, version int16) error {
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r.Version = version
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size, err := pd.getInt32()
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if err != nil {
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return err
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}
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if size < 0 {
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return nil
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} else {
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topicCount := size
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if topicCount == 0 {
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return nil
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}
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r.Topics = make([]string, topicCount)
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for i := range r.Topics {
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topic, err := pd.getString()
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if err != nil {
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return err
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}
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r.Topics[i] = topic
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}
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}
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if r.Version > 3 {
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autoCreation, err := pd.getBool()
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if err != nil {
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return err
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}
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r.AllowAutoTopicCreation = autoCreation
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}
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return nil
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}
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func (r *MetadataRequest) key() int16 {
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return 3
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}
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func (r *MetadataRequest) version() int16 {
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return r.Version
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}
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func (r *MetadataRequest) requiredVersion() KafkaVersion {
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switch r.Version {
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case 1:
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return V0_10_0_0
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case 2:
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return V0_10_1_0
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case 3, 4:
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return V0_11_0_0
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case 5:
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return V1_0_0_0
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default:
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return MinVersion
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}
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}
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