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package kafka
import (
"bufio"
)
// FindCoordinatorRequestV0 requests the coordinator for the specified group or transaction
//
// See http://kafka.apache.org/protocol.html#The_Messages_FindCoordinator
type findCoordinatorRequestV0 struct {
// CoordinatorKey holds id to use for finding the coordinator (for groups, this is
// the groupId, for transactional producers, this is the transactional id)
CoordinatorKey string
}
func (t findCoordinatorRequestV0) size() int32 {
return sizeofString(t.CoordinatorKey)
}
func (t findCoordinatorRequestV0) writeTo(w *bufio.Writer) {
writeString(w, t.CoordinatorKey)
}
type findCoordinatorResponseCoordinatorV0 struct {
// NodeID holds the broker id.
NodeID int32
// Host of the broker
Host string
// Port on which broker accepts requests
Port int32
}
func (t findCoordinatorResponseCoordinatorV0) size() int32 {
return sizeofInt32(t.NodeID) +
sizeofString(t.Host) +
sizeofInt32(t.Port)
}
func (t findCoordinatorResponseCoordinatorV0) writeTo(w *bufio.Writer) {
writeInt32(w, t.NodeID)
writeString(w, t.Host)
writeInt32(w, t.Port)
}
func (t *findCoordinatorResponseCoordinatorV0) readFrom(r *bufio.Reader, size int) (remain int, err error) {
if remain, err = readInt32(r, size, &t.NodeID); err != nil {
return
}
if remain, err = readString(r, remain, &t.Host); err != nil {
return
}
if remain, err = readInt32(r, remain, &t.Port); err != nil {
return
}
return
}
type findCoordinatorResponseV0 struct {
// ErrorCode holds response error code
ErrorCode int16
// Coordinator holds host and port information for the coordinator
Coordinator findCoordinatorResponseCoordinatorV0
}
func (t findCoordinatorResponseV0) size() int32 {
return sizeofInt16(t.ErrorCode) +
t.Coordinator.size()
}
func (t findCoordinatorResponseV0) writeTo(w *bufio.Writer) {
writeInt16(w, t.ErrorCode)
t.Coordinator.writeTo(w)
}
func (t *findCoordinatorResponseV0) readFrom(r *bufio.Reader, size int) (remain int, err error) {
if remain, err = readInt16(r, size, &t.ErrorCode); err != nil {
return
}
if remain, err = (&t.Coordinator).readFrom(r, remain); err != nil {
return
}
return
}
|
