/
10_find_coordinator.go
61 lines (49 loc) · 1.44 KB
/
10_find_coordinator.go
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package kfake
import (
"net"
"strconv"
"github.com/twmb/franz-go/pkg/kerr"
"github.com/twmb/franz-go/pkg/kmsg"
)
func init() { regKey(10, 0, 4) }
func (c *Cluster) handleFindCoordinator(kreq kmsg.Request) (kmsg.Response, error) {
req := kreq.(*kmsg.FindCoordinatorRequest)
resp := req.ResponseKind().(*kmsg.FindCoordinatorResponse)
if err := checkReqVersion(req.Key(), req.Version); err != nil {
return nil, err
}
var unknown bool
if req.CoordinatorType != 0 && req.CoordinatorType != 1 {
unknown = true
}
if req.Version <= 3 {
req.CoordinatorKeys = append(req.CoordinatorKeys, req.CoordinatorKey)
defer func() {
resp.ErrorCode = resp.Coordinators[0].ErrorCode
resp.ErrorMessage = resp.Coordinators[0].ErrorMessage
resp.NodeID = resp.Coordinators[0].NodeID
resp.Host = resp.Coordinators[0].Host
resp.Port = resp.Coordinators[0].Port
}()
}
addc := func(key string) *kmsg.FindCoordinatorResponseCoordinator {
sc := kmsg.NewFindCoordinatorResponseCoordinator()
sc.Key = key
resp.Coordinators = append(resp.Coordinators, sc)
return &resp.Coordinators[len(resp.Coordinators)-1]
}
for _, key := range req.CoordinatorKeys {
sc := addc(key)
if unknown {
sc.ErrorCode = kerr.InvalidRequest.Code
continue
}
b := c.coordinator(key)
host, port, _ := net.SplitHostPort(b.ln.Addr().String())
iport, _ := strconv.Atoi(port)
sc.NodeID = b.node
sc.Host = host
sc.Port = int32(iport)
}
return resp, nil
}