refactor: refactor message handling and encoding in queue system (#138)

- Remove `Encode` method call in `BenchmarkQueue` function
- Add `TaskMessage` interface extending `QueuedMessage` with `Payload` method
- Rename `Payload` field to `Body` in `Message` struct
- Add `Payload` method to `Message` struct to return `Body`
- Replace `Data` field and `Encode` method in `Message` struct with `Bytes` method using JSON marshalling
- Update `NewMessage` to use `Body` instead of `Payload`
- Add documentation for `Encode` method in `job` package
- Update `TestMessageEncodeDecode` to use `Payload()` method
- Replace `Encode` method call with direct handling of `task` in `Queue` methods
- Change logger from `Errorf` to `Fatalf` in `Queue` error handling
- Add type assertion and handling for `job.Message` in `Queue`'s `run` method
- Import `job` package in `ring.go`
- Add `Data` struct with `Payload` field and `Bytes` method in `ring.go`
- Update `Ring`'s `Run` method to use `Data` struct for task handling

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

benchmark_test.go

@@ -78,7 +78,6 @@ func BenchmarkQueue(b *testing.B) {
 	m := job.NewMessage(&mockMessage{
 		message: "foo",
 	})
-	m.Encode()
 
 	for n := 0; n < b.N; n++ {
 		if err := q.queue(&m); err != nil {

core/worker.go

@@ -30,3 +30,8 @@ type Worker interface {
 type QueuedMessage interface {
 	Bytes() []byte
 }
+
+type TaskMessage interface {
+	QueuedMessage
+	Payload() []byte
+}

job/job.go

@@ -21,7 +21,7 @@ type Message struct {
 	Timeout time.Duration `json:"timeout" msgpack:"timeout"`
 
 	// Payload is the payload data of the task.
-	Payload []byte `json:"body" msgpack:"body"`
+	Body []byte `json:"body" msgpack:"body"`
 
 	// RetryCount set count of retry
 	// default is 0, no retry.
@@ -48,19 +48,30 @@ type Message struct {
 
 	// Jitter eases contention by randomizing backoff steps
 	Jitter bool `json:"jitter" msgpack:"jitter"`
+}
 
-	// Data to save Unsafe cast
-	Data []byte
+// Payload returns the payload data of the Message.
+// It returns the byte slice of the payload.
+//
+// Returns:
+//   - A byte slice containing the payload data.
+func (m *Message) Payload() []byte {
+	return m.Body
 }
 
-// Bytes get internal data
+// Bytes returns the byte slice of the Message struct.
+// If the marshalling process encounters an error, the function will panic.
+// It returns the marshalled byte slice.
+//
+// Returns:
+//   - A byte slice containing the msgpack-encoded data.
 func (m *Message) Bytes() []byte {
-	return m.Data
-}
+	b, err := json.Marshal(m)
+	if err != nil {
+		panic(err)
+	}
 
-// Encode for encoding the structure
-func (m *Message) Encode() {
-	m.Data = Encode(m)
+	return b
 }
 
 // NewMessage create new message
@@ -74,7 +85,7 @@ func NewMessage(m core.QueuedMessage, opts ...AllowOption) Message {
 		RetryMin:    o.retryMin,
 		RetryMax:    o.retryMax,
 		Timeout:     o.timeout,
-		Payload:     m.Bytes(),
+		Body:        m.Bytes(),
 	}
 }
 
@@ -92,6 +103,15 @@ func NewTask(task TaskFunc, opts ...AllowOption) Message {
 	}
 }
 
+// Encode takes a Message struct and marshals it into a byte slice using msgpack.
+// If the marshalling process encounters an error, the function will panic.
+// It returns the marshalled byte slice.
+//
+// Parameters:
+//   - m: A pointer to the Message struct to be encoded.
+//
+// Returns:
+//   - A byte slice containing the msgpack-encoded data.
 func Encode(m *Message) []byte {
 	b, err := json.Marshal(m)
 	if err != nil {

job/job_test.go

@@ -30,13 +30,12 @@ func TestMessageEncodeDecode(t *testing.T) {
 		},
 	)
 
-	m.Encode()
 	out := Decode(m.Bytes())
 
 	assert.Equal(t, int64(100), out.RetryCount)
 	assert.Equal(t, 30*time.Millisecond, out.RetryDelay)
 	assert.Equal(t, 3*time.Millisecond, out.Timeout)
-	assert.Equal(t, "foo", string(out.Payload))
+	assert.Equal(t, "foo", string(out.Payload()))
 	assert.Equal(t, 200*time.Millisecond, out.RetryMin)
 	assert.Equal(t, 20*time.Second, out.RetryMax)
 	assert.Equal(t, 4.0, out.RetryFactor)

queue.go

@@ -127,7 +127,6 @@ func (q *Queue) Wait() {
 // Queue to queue single job with binary
 func (q *Queue) Queue(message core.QueuedMessage, opts ...job.AllowOption) error {
 	data := job.NewMessage(message, opts...)
-	data.Encode()
 
 	return q.queue(&data)
 }
@@ -160,7 +159,7 @@ func (q *Queue) work(task core.QueuedMessage) {
 		q.metric.DecBusyWorker()
 		e := recover()
 		if e != nil {
-			q.logger.Errorf("panic error: %v", e)
+			q.logger.Fatalf("panic error: %v", e)
 		}
 		q.schedule()
 
@@ -182,13 +181,12 @@ func (q *Queue) work(task core.QueuedMessage) {
 }
 
 func (q *Queue) run(task core.QueuedMessage) error {
-	data := task.(*job.Message)
-	if data.Task == nil {
-		data = job.Decode(task.Bytes())
-		data.Data = data.Payload
+	switch t := task.(type) {
+	case *job.Message:
+		return q.handle(t)
+	default:
+		return errors.New("invalid task type")
 	}
-
-	return q.handle(data)
 }
 
 func (q *Queue) handle(m *job.Message) error {

queue_test.go

@@ -80,7 +80,7 @@ func TestNewQueueWithDefaultWorker(t *testing.T) {
 func TestHandleTimeout(t *testing.T) {
 	m := &job.Message{
 		Timeout: 100 * time.Millisecond,
-		Payload: []byte("foo"),
+		Body:    []byte("foo"),
 	}
 	w := NewRing(
 		WithFn(func(ctx context.Context, m core.QueuedMessage) error {
@@ -112,7 +112,7 @@ func TestHandleTimeout(t *testing.T) {
 func TestJobComplete(t *testing.T) {
 	m := &job.Message{
 		Timeout: 100 * time.Millisecond,
-		Payload: []byte("foo"),
+		Body:    []byte("foo"),
 	}
 	w := NewRing(
 		WithFn(func(ctx context.Context, m core.QueuedMessage) error {
@@ -132,7 +132,7 @@ func TestJobComplete(t *testing.T) {
 
 	m = &job.Message{
 		Timeout: 250 * time.Millisecond,
-		Payload: []byte("foo"),
+		Body:    []byte("foo"),
 	}
 
 	w = NewRing(

ring.go

@@ -6,6 +6,7 @@ import (
 	"sync/atomic"
 
 	"github.com/golang-queue/queue/core"
+	"github.com/golang-queue/queue/job"
 )
 
 var _ core.Worker = (*Ring)(nil)
@@ -25,9 +26,21 @@ type Ring struct {
 	stopFlag  int32
 }
 
+type Data struct {
+	Payload []byte `json:"payload"`
+}
+
+func (d *Data) Bytes() []byte {
+	return d.Payload
+}
+
 // Run to execute new task
 func (s *Ring) Run(ctx context.Context, task core.QueuedMessage) error {
-	return s.runFunc(ctx, task)
+	v, _ := task.(*job.Message)
+	data := &Data{
+		Payload: v.Body,
+	}
+	return s.runFunc(ctx, data)
 }
 
 // Shutdown the worker