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package sarama
type topicPartitionAssignment struct {
Topic string
Partition int32
}
type StickyAssignorUserData interface {
partitions() []topicPartitionAssignment
hasGeneration() bool
generation() int
}
// StickyAssignorUserDataV0 holds topic partition information for an assignment
type StickyAssignorUserDataV0 struct {
Topics map[string][]int32
topicPartitions []topicPartitionAssignment
}
func (m *StickyAssignorUserDataV0) encode(pe packetEncoder) error {
if err := pe.putArrayLength(len(m.Topics)); err != nil {
return err
}
for topic, partitions := range m.Topics {
if err := pe.putString(topic); err != nil {
return err
}
if err := pe.putInt32Array(partitions); err != nil {
return err
}
}
return nil
}
func (m *StickyAssignorUserDataV0) decode(pd packetDecoder) (err error) {
var topicLen int
if topicLen, err = pd.getArrayLength(); err != nil {
return
}
m.Topics = make(map[string][]int32, topicLen)
for i := 0; i < topicLen; i++ {
var topic string
if topic, err = pd.getString(); err != nil {
return
}
if m.Topics[topic], err = pd.getInt32Array(); err != nil {
return
}
}
m.topicPartitions = populateTopicPartitions(m.Topics)
return nil
}
func (m *StickyAssignorUserDataV0) partitions() []topicPartitionAssignment { return m.topicPartitions }
func (m *StickyAssignorUserDataV0) hasGeneration() bool { return false }
func (m *StickyAssignorUserDataV0) generation() int { return defaultGeneration }
// StickyAssignorUserDataV1 holds topic partition information for an assignment
type StickyAssignorUserDataV1 struct {
Topics map[string][]int32
Generation int32
topicPartitions []topicPartitionAssignment
}
func (m *StickyAssignorUserDataV1) encode(pe packetEncoder) error {
if err := pe.putArrayLength(len(m.Topics)); err != nil {
return err
}
for topic, partitions := range m.Topics {
if err := pe.putString(topic); err != nil {
return err
}
if err := pe.putInt32Array(partitions); err != nil {
return err
}
}
pe.putInt32(m.Generation)
return nil
}
func (m *StickyAssignorUserDataV1) decode(pd packetDecoder) (err error) {
var topicLen int
if topicLen, err = pd.getArrayLength(); err != nil {
return
}
m.Topics = make(map[string][]int32, topicLen)
for i := 0; i < topicLen; i++ {
var topic string
if topic, err = pd.getString(); err != nil {
return
}
if m.Topics[topic], err = pd.getInt32Array(); err != nil {
return
}
}
m.Generation, err = pd.getInt32()
if err != nil {
return err
}
m.topicPartitions = populateTopicPartitions(m.Topics)
return nil
}
func (m *StickyAssignorUserDataV1) partitions() []topicPartitionAssignment { return m.topicPartitions }
func (m *StickyAssignorUserDataV1) hasGeneration() bool { return true }
func (m *StickyAssignorUserDataV1) generation() int { return int(m.Generation) }
func populateTopicPartitions(topics map[string][]int32) []topicPartitionAssignment {
topicPartitions := make([]topicPartitionAssignment, 0)
for topic, partitions := range topics {
for _, partition := range partitions {
topicPartitions = append(topicPartitions, topicPartitionAssignment{Topic: topic, Partition: partition})
}
}
return topicPartitions
}
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