Split methods and streams in service info

reflection/serverreflection.go

@@ -214,7 +214,7 @@ func (s *serverReflectionServer) serviceMetadataForSymbol(name string) (interfac
 		return nil, fmt.Errorf("unknown symbol: %v", name)
 	}
 
-	// Search for method in info.
+	// Search for method in info.Methods.
 	var found bool
 	for _, m := range info.Methods {
 		if m == name[pos+1:] {
@@ -222,11 +222,22 @@ func (s *serverReflectionServer) serviceMetadataForSymbol(name string) (interfac
 			break
 		}
 	}
-	if !found {
-		return nil, fmt.Errorf("unknown symbol: %v", name)
+	if found {
+		return info.Metadata, nil
 	}
 
-	return info.Metadata, nil
+	// Search for stream in info.Streams.
+	for _, m := range info.Streams {
+		if m == name[pos+1:] {
+			found = true
+			break
+		}
+	}
+	if found {
+		return info.Metadata, nil
+	}
+
+	return nil, fmt.Errorf("unknown symbol: %v", name)
 }
 
 // fileDescEncodingContainingSymbol finds the file descriptor containing the given symbol,

reflection/serverreflection_test.go

@@ -273,6 +273,7 @@ func testFileContainingSymbol(t *testing.T, stream rpb.ServerReflection_ServerRe
 	}{
 		{"grpc.testing.SearchService", fdTestByte},
 		{"grpc.testing.SearchService.Search", fdTestByte},
+		{"grpc.testing.SearchService.StreamingSearch", fdTestByte},
 		{"grpc.testing.SearchResponse", fdTestByte},
 		{"grpc.testing.ToBeExtened", fdProto2Byte},
 	} {

server.go

@@ -245,10 +245,12 @@ func (s *Server) register(sd *ServiceDesc, ss interface{}) {
 	s.m[sd.ServiceName] = srv
 }
 
-// ServiceInfo contains method names and metadata for a service.
+// ServiceInfo contains unary rpc names, streaming rpc names and metadata for a service.
 type ServiceInfo struct {
-	// Methods are method names only, without the service name or package name.
+	// Methods are unary rpc names only, without the service name or package name.
 	Methods []string
+	// Streams are streaming rpc names only, without the service name or package name.
+	Streams []string
 	// Metadata is the metadata specified in ServiceDesc when registering service.
 	Metadata interface{}
 }
@@ -258,16 +260,18 @@ type ServiceInfo struct {
 func (s *Server) GetServiceInfo() map[string]*ServiceInfo {
 	ret := make(map[string]*ServiceInfo)
 	for n, srv := range s.m {
-		methods := make([]string, 0, len(srv.md)+len(srv.sd))
+		methods := make([]string, 0, len(srv.md))
 		for m := range srv.md {
 			methods = append(methods, m)
 		}
-		for m := range srv.sd {
-			methods = append(methods, m)
+		streams := make([]string, 0, len(srv.sd))
+		for s := range srv.sd {
+			streams = append(streams, s)
 		}
 
 		ret[n] = &ServiceInfo{
 			Methods:  methods,
+			Streams:  streams,
 			Metadata: srv.mdata,
 		}
 	}

server_test.go

@@ -94,6 +94,8 @@ func TestGetServiceInfo(t *testing.T) {
 		"grpc.testing.EmptyService": &ServiceInfo{
 			Methods: []string{
 				"EmptyCall",
+			},
+			Streams: []string{
 				"EmptyStream",
 			},
 			Metadata: []int{0, 2, 1, 3},