Remove exporterqueue.Factory and simplify exportehelper.WithQueueRequest

.chloggen/break-exporterqueue-factory.yaml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: exporterqueue
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Remove exporterqueue.Factory in favor of the NewQueue function, and merge configs for memory and persistent.
+
+# One or more tracking issues or pull requests related to the change
+issues: [12509]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: As a side effect of this change, no alternative implementation of the queue are supported and the Queue interface will be hidden.
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [api]

.chloggen/new-queue-factory.yaml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: exporterhelper
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Change the signature of the exporterhelper.WithQueueRequest to accept Encoding instead of the Factory.
+
+# One or more tracking issues or pull requests related to the change
+issues: [12509]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [api]

exporter/exporterhelper/common.go

@@ -42,16 +42,16 @@
 // WithQueue overrides the default QueueConfig for an exporter.
 // The default QueueConfig is to disable queueing.
 // This option cannot be used with the new exporter helpers New[Traces|Metrics|Logs]RequestExporter.
-func WithQueue(config internal.QueueConfig) Option {
+func WithQueue(config QueueConfig) Option {
 	return internal.WithQueue(config)
 }
 
 // WithRequestQueue enables queueing for an exporter.
 // This option should be used with the new exporter helpers New[Traces|Metrics|Logs]RequestExporter.
 // Experimental: This API is at the early stage of development and may change without backward compatibility
 // until https://github.com/open-telemetry/opentelemetry-collector/issues/8122 is resolved.
-func WithRequestQueue(cfg exporterqueue.Config, queueFactory exporterqueue.Factory[Request]) Option {
-	return internal.WithRequestQueue(cfg, queueFactory)
+func WithRequestQueue(cfg exporterqueue.Config, encoding exporterqueue.Encoding[Request]) Option {
+	return internal.WithRequestQueue(cfg, encoding)
 }
 
 // WithCapabilities overrides the default Capabilities() function for a Consumer.

exporter/exporterhelper/internal/base_exporter.go

@@ -27,8 +27,7 @@ type BaseExporter struct {
 	component.StartFunc
 	component.ShutdownFunc
 
-	Marshaler   exporterqueue.Marshaler[request.Request]
-	Unmarshaler exporterqueue.Unmarshaler[request.Request]
+	encoding exporterqueue.Encoding[request.Request]
 
 	Set exporter.Settings
 
@@ -45,18 +44,16 @@ type BaseExporter struct {
 
 	ConsumerOptions []consumer.Option
 
-	timeoutCfg   TimeoutConfig
-	retryCfg     configretry.BackOffConfig
-	queueFactory exporterqueue.Factory[request.Request]
-	queueCfg     exporterqueue.Config
-	batcherCfg   exporterbatcher.Config
+	timeoutCfg TimeoutConfig
+	retryCfg   configretry.BackOffConfig
+	queueCfg   exporterqueue.Config
+	batcherCfg exporterbatcher.Config
 }
 
 func NewBaseExporter(set exporter.Settings, signal pipeline.Signal, options ...Option) (*BaseExporter, error) {
 	be := &BaseExporter{
-		Set:          set,
-		timeoutCfg:   NewDefaultTimeoutConfig(),
-		queueFactory: exporterqueue.NewMemoryQueueFactory[request.Request](),
+		Set:        set,
+		timeoutCfg: NewDefaultTimeoutConfig(),
 	}
 
 	for _, op := range options {
@@ -98,11 +95,12 @@ func NewBaseExporter(set exporter.Settings, signal pipeline.Signal, options ...O
 	}
 
 	if be.queueCfg.Enabled || be.batcherCfg.Enabled {
-		qSet := exporterqueue.Settings{
+		qSet := exporterqueue.Settings[request.Request]{
 			Signal:           signal,
 			ExporterSettings: set,
+			Encoding:         be.encoding,
 		}
-		be.QueueSender, err = NewQueueSender(be.queueFactory, qSet, be.queueCfg, be.batcherCfg, be.ExportFailureMessage, be.firstSender)
+		be.QueueSender, err = NewQueueSender(qSet, be.queueCfg, be.batcherCfg, be.ExportFailureMessage, be.firstSender)
 		if err != nil {
 			return nil, err
 		}
@@ -199,44 +197,30 @@ func WithRetry(config configretry.BackOffConfig) Option {
 // WithQueue overrides the default QueueConfig for an exporter.
 // The default QueueConfig is to disable queueing.
 // This option cannot be used with the new exporter helpers New[Traces|Metrics|Logs]RequestExporter.
-func WithQueue(config QueueConfig) Option {
+func WithQueue(cfg exporterqueue.Config) Option {
 	return func(o *BaseExporter) error {
-		if o.Marshaler == nil || o.Unmarshaler == nil {
+		if o.encoding == nil {
 			return errors.New("WithQueue option is not available for the new request exporters, use WithRequestQueue instead")
 		}
-		if !config.Enabled {
-			o.ExportFailureMessage += " Try enabling sending_queue to survive temporary failures."
-			return nil
-		}
-		o.queueCfg = exporterqueue.Config{
-			Enabled:      config.Enabled,
-			NumConsumers: config.NumConsumers,
-			QueueSize:    config.QueueSize,
-			Blocking:     config.Blocking,
-		}
-		o.queueFactory = exporterqueue.NewPersistentQueueFactory[request.Request](config.StorageID, exporterqueue.PersistentQueueSettings[request.Request]{
-			Marshaler:   o.Marshaler,
-			Unmarshaler: o.Unmarshaler,
-		})
-		return nil
+		return WithRequestQueue(cfg, o.encoding)(o)
 	}
 }
 
 // WithRequestQueue enables queueing for an exporter.
 // This option should be used with the new exporter helpers New[Traces|Metrics|Logs]RequestExporter.
 // Experimental: This API is at the early stage of development and may change without backward compatibility
 // until https://github.com/open-telemetry/opentelemetry-collector/issues/8122 is resolved.
-func WithRequestQueue(cfg exporterqueue.Config, queueFactory exporterqueue.Factory[request.Request]) Option {
+func WithRequestQueue(cfg exporterqueue.Config, encoding exporterqueue.Encoding[request.Request]) Option {
 	return func(o *BaseExporter) error {
-		if o.Marshaler != nil || o.Unmarshaler != nil {
-			return errors.New("WithRequestQueue option must be used with the new request exporters only, use WithQueue instead")
+		if cfg.Enabled && cfg.StorageID != nil && encoding == nil {
+			return errors.New("`encoding` must not be nil when persistent queue is enabled")
 		}
+		o.encoding = encoding
 		if !cfg.Enabled {
 			o.ExportFailureMessage += " Try enabling sending_queue to survive temporary failures."
 			return nil
 		}
 		o.queueCfg = cfg
-		o.queueFactory = queueFactory
 		return nil
 	}
 }
@@ -263,20 +247,11 @@ func WithBatcher(cfg exporterbatcher.Config) Option {
 	}
 }
 
-// WithMarshaler is used to set the request marshaler for the new exporter helper.
-// It must be provided as the first option when creating a new exporter helper.
-func WithMarshaler(marshaler exporterqueue.Marshaler[request.Request]) Option {
-	return func(o *BaseExporter) error {
-		o.Marshaler = marshaler
-		return nil
-	}
-}
-
-// WithUnmarshaler is used to set the request unmarshaler for the new exporter helper.
+// WithEncoding is used to set the request encoding for the new exporter helper.
 // It must be provided as the first option when creating a new exporter helper.
-func WithUnmarshaler(unmarshaler exporterqueue.Unmarshaler[request.Request]) Option {
+func WithEncoding(encoding exporterqueue.Encoding[request.Request]) Option {
 	return func(o *BaseExporter) error {
-		o.Unmarshaler = unmarshaler
+		o.encoding = encoding
 		return nil
 	}
 }

exporter/exporterhelper/internal/base_exporter_test.go

@@ -71,16 +71,18 @@ func TestQueueOptionsWithRequestExporter(t *testing.T) {
 	bs, err := NewBaseExporter(exportertest.NewNopSettings(exportertest.NopType), defaultSignal,
 		WithRetry(configretry.NewDefaultBackOffConfig()))
 	require.NoError(t, err)
-	require.Nil(t, bs.Marshaler)
-	require.Nil(t, bs.Unmarshaler)
+	require.Nil(t, bs.encoding)
 	_, err = NewBaseExporter(exportertest.NewNopSettings(exportertest.NopType), defaultSignal,
-		WithRetry(configretry.NewDefaultBackOffConfig()), WithQueue(NewDefaultQueueConfig()))
+		WithRetry(configretry.NewDefaultBackOffConfig()), WithQueue(exporterqueue.NewDefaultConfig()))
 	require.Error(t, err)
 
+	qCfg := exporterqueue.NewDefaultConfig()
+	storageID := component.NewID(component.MustNewType("test"))
+	qCfg.StorageID = &storageID
 	_, err = NewBaseExporter(exportertest.NewNopSettings(exportertest.NopType), defaultSignal,
-		WithMarshaler(mockRequestMarshaler), WithUnmarshaler(mockRequestUnmarshaler(&requesttest.FakeRequest{Items: 1})),
+		WithEncoding(newFakeEncoding(&requesttest.FakeRequest{Items: 1})),
 		WithRetry(configretry.NewDefaultBackOffConfig()),
-		WithRequestQueue(exporterqueue.NewDefaultConfig(), exporterqueue.NewMemoryQueueFactory[request.Request]()))
+		WithRequestQueue(qCfg, nil))
 	require.Error(t, err)
 }
 
@@ -93,7 +95,7 @@ func TestBaseExporterLogging(t *testing.T) {
 	qCfg := exporterqueue.NewDefaultConfig()
 	qCfg.Enabled = false
 	bs, err := NewBaseExporter(set, defaultSignal,
-		WithRequestQueue(qCfg, exporterqueue.NewMemoryQueueFactory[request.Request]()),
+		WithRequestQueue(qCfg, newFakeEncoding(&requesttest.FakeRequest{})),
 		WithBatcher(exporterbatcher.NewDefaultConfig()),
 		WithRetry(rCfg))
 	require.NoError(t, err)
@@ -118,10 +120,9 @@ func TestQueueRetryWithDisabledQueue(t *testing.T) {
 		{
 			name: "WithQueue",
 			queueOptions: []Option{
-				WithMarshaler(mockRequestMarshaler),
-				WithUnmarshaler(mockRequestUnmarshaler(&requesttest.FakeRequest{Items: 1})),
+				WithEncoding(newFakeEncoding(&requesttest.FakeRequest{Items: 1})),
 				func() Option {
-					qs := NewDefaultQueueConfig()
+					qs := exporterqueue.NewDefaultConfig()
 					qs.Enabled = false
 					return WithQueue(qs)
 				}(),
@@ -138,7 +139,7 @@ func TestQueueRetryWithDisabledQueue(t *testing.T) {
 				func() Option {
 					qs := exporterqueue.NewDefaultConfig()
 					qs.Enabled = false
-					return WithRequestQueue(qs, exporterqueue.NewMemoryQueueFactory[request.Request]())
+					return WithRequestQueue(qs, newFakeEncoding(&requesttest.FakeRequest{Items: 1}))
 				}(),
 				func() Option {
 					bs := exporterbatcher.NewDefaultConfig()

exporter/exporterhelper/internal/batcher/disabled_batcher_test.go

@@ -45,9 +45,9 @@ func TestDisabledBatcher_Basic(t *testing.T) {
 				tt.maxWorkers)
 			require.NoError(t, err)
 
-			q := exporterqueue.NewMemoryQueueFactory[request.Request]()(
+			q := exporterqueue.NewQueue[request.Request](
 				context.Background(),
-				exporterqueue.Settings{
+				exporterqueue.Settings[request.Request]{
 					Signal:           pipeline.SignalTraces,
 					ExporterSettings: exportertest.NewNopSettings(exportertest.NopType),
 				},

exporter/exporterhelper/internal/obs_queue.go

@@ -23,7 +23,7 @@ type obsQueue[T request.Request] struct {
 	enqueueFailedInst metric.Int64Counter
 }
 
-func newObsQueue[T request.Request](set exporterqueue.Settings, delegate exporterqueue.Queue[T]) (exporterqueue.Queue[T], error) {
+func newObsQueue[T request.Request](set exporterqueue.Settings[T], delegate exporterqueue.Queue[T]) (exporterqueue.Queue[T], error) {
 	tb, err := metadata.NewTelemetryBuilder(set.ExporterSettings.TelemetrySettings)
 	if err != nil {
 		return nil, err

exporter/exporterhelper/internal/obs_queue_test.go

@@ -50,7 +50,7 @@ func TestObsQueueLogsSizeCapacity(t *testing.T) {
 	tt := componenttest.NewTelemetry()
 	t.Cleanup(func() { require.NoError(t, tt.Shutdown(context.Background())) })
 
-	te, err := newObsQueue[request.Request](exporterqueue.Settings{
+	te, err := newObsQueue[request.Request](exporterqueue.Settings[request.Request]{
 		Signal:           pipeline.SignalLogs,
 		ExporterSettings: exporter.Settings{ID: exporterID, TelemetrySettings: tt.NewTelemetrySettings(), BuildInfo: component.NewDefaultBuildInfo()},
 	}, newFakeQueue[request.Request](nil, 7, 9))
@@ -80,7 +80,7 @@ func TestObsQueueLogsFailure(t *testing.T) {
 	tt := componenttest.NewTelemetry()
 	t.Cleanup(func() { require.NoError(t, tt.Shutdown(context.Background())) })
 
-	te, err := newObsQueue[request.Request](exporterqueue.Settings{
+	te, err := newObsQueue[request.Request](exporterqueue.Settings[request.Request]{
 		Signal:           pipeline.SignalLogs,
 		ExporterSettings: exporter.Settings{ID: exporterID, TelemetrySettings: tt.NewTelemetrySettings(), BuildInfo: component.NewDefaultBuildInfo()},
 	}, newFakeQueue[request.Request](errors.New("my error"), 7, 9))
@@ -100,7 +100,7 @@ func TestObsQueueTracesSizeCapacity(t *testing.T) {
 	tt := componenttest.NewTelemetry()
 	t.Cleanup(func() { require.NoError(t, tt.Shutdown(context.Background())) })
 
-	te, err := newObsQueue[request.Request](exporterqueue.Settings{
+	te, err := newObsQueue[request.Request](exporterqueue.Settings[request.Request]{
 		Signal:           pipeline.SignalTraces,
 		ExporterSettings: exporter.Settings{ID: exporterID, TelemetrySettings: tt.NewTelemetrySettings(), BuildInfo: component.NewDefaultBuildInfo()},
 	}, newFakeQueue[request.Request](nil, 17, 19))
@@ -130,7 +130,7 @@ func TestObsQueueTracesFailure(t *testing.T) {
 	tt := componenttest.NewTelemetry()
 	t.Cleanup(func() { require.NoError(t, tt.Shutdown(context.Background())) })
 
-	te, err := newObsQueue[request.Request](exporterqueue.Settings{
+	te, err := newObsQueue[request.Request](exporterqueue.Settings[request.Request]{
 		Signal:           pipeline.SignalTraces,
 		ExporterSettings: exporter.Settings{ID: exporterID, TelemetrySettings: tt.NewTelemetrySettings(), BuildInfo: component.NewDefaultBuildInfo()},
 	}, newFakeQueue[request.Request](errors.New("my error"), 0, 0))
@@ -150,7 +150,7 @@ func TestObsQueueMetrics(t *testing.T) {
 	tt := componenttest.NewTelemetry()
 	t.Cleanup(func() { require.NoError(t, tt.Shutdown(context.Background())) })
 
-	te, err := newObsQueue[request.Request](exporterqueue.Settings{
+	te, err := newObsQueue[request.Request](exporterqueue.Settings[request.Request]{
 		Signal:           pipeline.SignalMetrics,
 		ExporterSettings: exporter.Settings{ID: exporterID, TelemetrySettings: tt.NewTelemetrySettings(), BuildInfo: component.NewDefaultBuildInfo()},
 	}, newFakeQueue[request.Request](nil, 27, 29))
@@ -180,7 +180,7 @@ func TestObsQueueMetricsFailure(t *testing.T) {
 	tt := componenttest.NewTelemetry()
 	t.Cleanup(func() { require.NoError(t, tt.Shutdown(context.Background())) })
 
-	te, err := newObsQueue[request.Request](exporterqueue.Settings{
+	te, err := newObsQueue[request.Request](exporterqueue.Settings[request.Request]{
 		Signal:           pipeline.SignalMetrics,
 		ExporterSettings: exporter.Settings{ID: exporterID, TelemetrySettings: tt.NewTelemetrySettings(), BuildInfo: component.NewDefaultBuildInfo()},
 	}, newFakeQueue[request.Request](errors.New("my error"), 0, 0))