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package sarama
import "time"
// ApiVersionsResponseKey contains the APIs supported by the broker.
type ApiVersionsResponseKey struct {
// Version defines the protocol version to use for encode and decode
Version int16
// ApiKey contains the API index.
ApiKey int16
// MinVersion contains the minimum supported version, inclusive.
MinVersion int16
// MaxVersion contains the maximum supported version, inclusive.
MaxVersion int16
}
func (a *ApiVersionsResponseKey) encode(pe packetEncoder, version int16) (err error) {
a.Version = version
pe.putInt16(a.ApiKey)
pe.putInt16(a.MinVersion)
pe.putInt16(a.MaxVersion)
if version >= 3 {
pe.putEmptyTaggedFieldArray()
}
return nil
}
func (a *ApiVersionsResponseKey) decode(pd packetDecoder, version int16) (err error) {
a.Version = version
if a.ApiKey, err = pd.getInt16(); err != nil {
return err
}
if a.MinVersion, err = pd.getInt16(); err != nil {
return err
}
if a.MaxVersion, err = pd.getInt16(); err != nil {
return err
}
if version >= 3 {
if _, err := pd.getEmptyTaggedFieldArray(); err != nil {
return err
}
}
return nil
}
type ApiVersionsResponse struct {
// Version defines the protocol version to use for encode and decode
Version int16
// ErrorCode contains the top-level error code.
ErrorCode int16
// ApiKeys contains the APIs supported by the broker.
ApiKeys []ApiVersionsResponseKey
// ThrottleTimeMs contains the duration in milliseconds for which the request was throttled due to a quota violation, or zero if the request did not violate any quota.
ThrottleTimeMs int32
}
func (r *ApiVersionsResponse) encode(pe packetEncoder) (err error) {
pe.putInt16(r.ErrorCode)
if r.Version >= 3 {
pe.putCompactArrayLength(len(r.ApiKeys))
} else {
if err := pe.putArrayLength(len(r.ApiKeys)); err != nil {
return err
}
}
for _, block := range r.ApiKeys {
if err := block.encode(pe, r.Version); err != nil {
return err
}
}
if r.Version >= 1 {
pe.putInt32(r.ThrottleTimeMs)
}
if r.Version >= 3 {
pe.putEmptyTaggedFieldArray()
}
return nil
}
func (r *ApiVersionsResponse) decode(pd packetDecoder, version int16) (err error) {
r.Version = version
if r.ErrorCode, err = pd.getInt16(); err != nil {
return err
}
var numApiKeys int
if r.Version >= 3 {
numApiKeys, err = pd.getCompactArrayLength()
if err != nil {
return err
}
} else {
numApiKeys, err = pd.getArrayLength()
if err != nil {
return err
}
}
r.ApiKeys = make([]ApiVersionsResponseKey, numApiKeys)
for i := 0; i < numApiKeys; i++ {
var block ApiVersionsResponseKey
if err = block.decode(pd, r.Version); err != nil {
return err
}
r.ApiKeys[i] = block
}
if r.Version >= 1 {
if r.ThrottleTimeMs, err = pd.getInt32(); err != nil {
return err
}
}
if r.Version >= 3 {
if _, err = pd.getEmptyTaggedFieldArray(); err != nil {
return err
}
}
return nil
}
func (r *ApiVersionsResponse) key() int16 {
return 18
}
func (r *ApiVersionsResponse) version() int16 {
return r.Version
}
func (r *ApiVersionsResponse) headerVersion() int16 {
// ApiVersionsResponse always includes a v0 header.
// See KIP-511 for details
return 0
}
func (r *ApiVersionsResponse) isValidVersion() bool {
return r.Version >= 0 && r.Version <= 3
}
func (r *ApiVersionsResponse) requiredVersion() KafkaVersion {
switch r.Version {
case 3:
return V2_4_0_0
case 2:
return V2_0_0_0
case 1:
return V0_11_0_0
case 0:
return V0_10_0_0
default:
return V2_4_0_0
}
}
func (r *ApiVersionsResponse) throttleTime() time.Duration {
return time.Duration(r.ThrottleTimeMs) * time.Millisecond
}
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