Add SFVs to Go serving path

Signed-off-by: Felix Wang <wangfelix98@gmail.com>

go/internal/feast/featurestore.go

@@ -224,6 +224,14 @@ func (fs *FeatureStore) listAllViews() (map[string]*model.FeatureView, map[strin
 		fvs[featureView.Base.Name] = featureView
 	}
 
+	streamFeatureViews, err := fs.ListStreamFeatureViews()
+	if err != nil {
+		return nil, nil, err
+	}
+	for _, streamFeatureView := range streamFeatureViews {
+		fvs[streamFeatureView.Base.Name] = streamFeatureView
+	}
+
 	onDemandFeatureViews, err := fs.registry.ListOnDemandFeatureViews(fs.config.Project)
 	if err != nil {
 		return nil, nil, err
@@ -242,6 +250,14 @@ func (fs *FeatureStore) ListFeatureViews() ([]*model.FeatureView, error) {
 	return featureViews, nil
 }
 
+func (fs *FeatureStore) ListStreamFeatureViews() ([]*model.FeatureView, error) {
+	streamFeatureViews, err := fs.registry.ListStreamFeatureViews(fs.config.Project)
+	if err != nil {
+		return streamFeatureViews, err
+	}
+	return streamFeatureViews, nil
+}
+
 func (fs *FeatureStore) ListEntities(hideDummyEntity bool) ([]*model.Entity, error) {
 
 	allEntities, err := fs.registry.ListEntities(fs.config.Project)

go/internal/feast/model/featureview.go

@@ -24,7 +24,24 @@ type FeatureView struct {
 
 func NewFeatureViewFromProto(proto *core.FeatureView) *FeatureView {
 	featureView := &FeatureView{Base: NewBaseFeatureView(proto.Spec.Name, proto.Spec.Features),
-		Ttl: &(*proto.Spec.Ttl),
+		Ttl: proto.Spec.Ttl,
+	}
+	if len(proto.Spec.Entities) == 0 {
+		featureView.EntityNames = []string{DUMMY_ENTITY_NAME}
+	} else {
+		featureView.EntityNames = proto.Spec.Entities
+	}
+	entityColumns := make([]*Field, len(proto.Spec.EntityColumns))
+	for i, entityColumn := range proto.Spec.EntityColumns {
+		entityColumns[i] = NewFieldFromProto(entityColumn)
+	}
+	featureView.EntityColumns = entityColumns
+	return featureView
+}
+
+func NewFeatureViewFromStreamFeatureViewProto(proto *core.StreamFeatureView) *FeatureView {
+	featureView := &FeatureView{Base: NewBaseFeatureView(proto.Spec.Name, proto.Spec.Features),
+		Ttl: proto.Spec.Ttl,
 	}
 	if len(proto.Spec.Entities) == 0 {
 		featureView.EntityNames = []string{DUMMY_ENTITY_NAME}

go/internal/feast/registry/registry.go

@@ -30,6 +30,7 @@ type Registry struct {
 	cachedFeatureServices          map[string]map[string]*core.FeatureService
 	cachedEntities                 map[string]map[string]*core.Entity
 	cachedFeatureViews             map[string]map[string]*core.FeatureView
+	cachedStreamFeatureViews       map[string]map[string]*core.StreamFeatureView
 	cachedOnDemandFeatureViews     map[string]map[string]*core.OnDemandFeatureView
 	cachedRegistry                 *core.Registry
 	cachedRegistryProtoLastUpdated time.Time
@@ -106,10 +107,12 @@ func (r *Registry) load(registry *core.Registry) {
 	r.cachedFeatureServices = make(map[string]map[string]*core.FeatureService)
 	r.cachedEntities = make(map[string]map[string]*core.Entity)
 	r.cachedFeatureViews = make(map[string]map[string]*core.FeatureView)
+	r.cachedStreamFeatureViews = make(map[string]map[string]*core.StreamFeatureView)
 	r.cachedOnDemandFeatureViews = make(map[string]map[string]*core.OnDemandFeatureView)
 	r.loadEntities(registry)
 	r.loadFeatureServices(registry)
 	r.loadFeatureViews(registry)
+	r.loadStreamFeatureViews(registry)
 	r.loadOnDemandFeatureViews(registry)
 	r.cachedRegistryProtoLastUpdated = time.Now()
 }
@@ -144,6 +147,16 @@ func (r *Registry) loadFeatureViews(registry *core.Registry) {
 	}
 }
 
+func (r *Registry) loadStreamFeatureViews(registry *core.Registry) {
+	streamFeatureViews := registry.StreamFeatureViews
+	for _, streamFeatureView := range streamFeatureViews {
+		if _, ok := r.cachedStreamFeatureViews[streamFeatureView.Spec.Project]; !ok {
+			r.cachedStreamFeatureViews[streamFeatureView.Spec.Project] = make(map[string]*core.StreamFeatureView)
+		}
+		r.cachedStreamFeatureViews[streamFeatureView.Spec.Project][streamFeatureView.Spec.Name] = streamFeatureView
+	}
+}
+
 func (r *Registry) loadOnDemandFeatureViews(registry *core.Registry) {
 	onDemandFeatureViews := registry.OnDemandFeatureViews
 	for _, onDemandFeatureView := range onDemandFeatureViews {
@@ -193,7 +206,26 @@ func (r *Registry) ListFeatureViews(project string) ([]*model.FeatureView, error
 }
 
 /*
-	Look up Feature Views inside project
+	Look up Stream Feature Views inside project
+	Returns empty list if project not found
+*/
+
+func (r *Registry) ListStreamFeatureViews(project string) ([]*model.FeatureView, error) {
+	if cachedStreamFeatureViews, ok := r.cachedStreamFeatureViews[project]; !ok {
+		return []*model.FeatureView{}, nil
+	} else {
+		streamFeatureViews := make([]*model.FeatureView, len(cachedStreamFeatureViews))
+		index := 0
+		for _, streamFeatureViewProto := range cachedStreamFeatureViews {
+			streamFeatureViews[index] = model.NewFeatureViewFromStreamFeatureViewProto(streamFeatureViewProto)
+			index += 1
+		}
+		return streamFeatureViews, nil
+	}
+}
+
+/*
+	Look up Feature Services inside project
 	Returns empty list if project not found
 */
 
@@ -254,6 +286,18 @@ func (r *Registry) GetFeatureView(project, featureViewName string) (*model.Featu
 	}
 }
 
+func (r *Registry) GetStreamFeatureView(project, streamFeatureViewName string) (*model.FeatureView, error) {
+	if cachedStreamFeatureViews, ok := r.cachedStreamFeatureViews[project]; !ok {
+		return nil, fmt.Errorf("no cached stream feature views found for project %s", project)
+	} else {
+		if streamFeatureViewProto, ok := cachedStreamFeatureViews[streamFeatureViewName]; !ok {
+			return nil, fmt.Errorf("no cached stream feature view %s found for project %s", streamFeatureViewName, project)
+		} else {
+			return model.NewFeatureViewFromStreamFeatureViewProto(streamFeatureViewProto), nil
+		}
+	}
+}
+
 func (r *Registry) GetFeatureService(project, featureServiceName string) (*model.FeatureService, error) {
 	if cachedFeatureServices, ok := r.cachedFeatureServices[project]; !ok {
 		return nil, fmt.Errorf("no cached feature services found for project %s", project)