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protocol: add find coordinator request/response
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,34 @@ | ||
package protocol | ||
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||
type FindCoordinatorRequest struct { | ||
CoordinatorKey string | ||
CoordinatorType int8 | ||
} | ||
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func (r *FindCoordinatorRequest) Encode(e PacketEncoder) (err error) { | ||
if err = e.PutString(r.CoordinatorKey); err != nil { | ||
return err | ||
} | ||
if r.Version() >= 1 { | ||
e.PutInt8(r.CoordinatorType) | ||
} | ||
return nil | ||
} | ||
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func (r *FindCoordinatorRequest) Decode(d PacketDecoder) (err error) { | ||
if r.CoordinatorKey, err = d.String(); err != nil { | ||
return err | ||
} | ||
if r.CoordinatorType, err = d.Int8(); err != nil { | ||
return err | ||
} | ||
return nil | ||
} | ||
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func (r *FindCoordinatorRequest) Version() int16 { | ||
return 1 | ||
} | ||
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func (r *FindCoordinatorRequest) Key() int16 { | ||
return 10 | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,22 @@ | ||
package protocol | ||
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import ( | ||
"testing" | ||
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"github.com/stretchr/testify/require" | ||
) | ||
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func TestFindCoordinatorRequest(t *testing.T) { | ||
req := require.New(t) | ||
exp := &FindCoordinatorRequest{ | ||
CoordinatorKey: "coord-key", | ||
CoordinatorType: 1, | ||
} | ||
b, err := Encode(exp) | ||
req.NoError(err) | ||
var act FindCoordinatorRequest | ||
err = Decode(b, &act) | ||
req.NoError(err) | ||
req.Equal(exp, &act) | ||
|
||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,50 @@ | ||
package protocol | ||
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type Coordinator struct { | ||
NodeID int32 | ||
Host string | ||
Port int32 | ||
} | ||
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type FindCoordinatorResponse struct { | ||
ThrottleTimeMs int32 | ||
ErrorCode int16 | ||
ErrorMessage *string | ||
Coordinator Coordinator | ||
} | ||
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func (r *FindCoordinatorResponse) Encode(e PacketEncoder) (err error) { | ||
e.PutInt32(r.ThrottleTimeMs) | ||
e.PutInt16(r.ErrorCode) | ||
if err = e.PutNullableString(r.ErrorMessage); err != nil { | ||
return err | ||
} | ||
e.PutInt32(r.Coordinator.NodeID) | ||
if err = e.PutString(r.Coordinator.Host); err != nil { | ||
return err | ||
} | ||
e.PutInt32(r.Coordinator.Port) | ||
return nil | ||
} | ||
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||
func (r *FindCoordinatorResponse) Decode(d PacketDecoder) (err error) { | ||
if r.ThrottleTimeMs, err = d.Int32(); err != nil { | ||
return err | ||
} | ||
if r.ErrorCode, err = d.Int16(); err != nil { | ||
return err | ||
} | ||
if r.ErrorMessage, err = d.NullableString(); err != nil { | ||
return err | ||
} | ||
if r.Coordinator.NodeID, err = d.Int32(); err != nil { | ||
return err | ||
} | ||
if r.Coordinator.Host, err = d.String(); err != nil { | ||
return err | ||
} | ||
if r.Coordinator.Port, err = d.Int32(); err != nil { | ||
return err | ||
} | ||
return nil | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,28 @@ | ||
package protocol | ||
|
||
import ( | ||
"testing" | ||
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"github.com/stretchr/testify/require" | ||
) | ||
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func TestFindCoordinatorResponse(t *testing.T) { | ||
req := require.New(t) | ||
errMsg := "Shit's broken" | ||
exp := &FindCoordinatorResponse{ | ||
ThrottleTimeMs: 1, | ||
ErrorCode: 2, | ||
ErrorMessage: &errMsg, | ||
Coordinator: Coordinator{ | ||
NodeID: 3, | ||
Host: "localhost", | ||
Port: 4, | ||
}, | ||
} | ||
b, err := Encode(exp) | ||
req.NoError(err) | ||
var act FindCoordinatorResponse | ||
err = Decode(b, &act) | ||
req.NoError(err) | ||
req.Equal(exp, &act) | ||
} |
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