record type begin and end

weed/mq/schema/schema_builder.go

@@ -19,11 +19,11 @@ type RecordTypeBuilder struct {
 	recordType *schema_pb.RecordType
 }
 
-func NewRecordTypeBuilder() *RecordTypeBuilder {
+func RecordTypeBegin() *RecordTypeBuilder {
 	return &RecordTypeBuilder{recordType: &schema_pb.RecordType{}}
 }
 
-func (rtb *RecordTypeBuilder) Build() *schema_pb.RecordType {
+func (rtb *RecordTypeBuilder) RecordTypeEnd() *schema_pb.RecordType {
 	// be consistent with parquet.node.go `func (g Group) Fields() []Field`
 	sort.Slice(rtb.recordType.Fields, func(i, j int) bool {
 		return rtb.recordType.Fields[i].Name < rtb.recordType.Fields[j].Name
@@ -39,10 +39,10 @@ func (rtb *RecordTypeBuilder) SetField(name string, scalarType *schema_pb.Type)
 	return rtb
 }
 
-func (rtb *RecordTypeBuilder) SetRecordField(name string, recordTypeBuilder *RecordTypeBuilder) *RecordTypeBuilder {
+func (rtb *RecordTypeBuilder) SetRecordField(name string, recordType *schema_pb.RecordType) *RecordTypeBuilder {
 	rtb.recordType.Fields = append(rtb.recordType.Fields, &schema_pb.Field{
 		Name: name,
-		Type: &schema_pb.Type{Kind: &schema_pb.Type_RecordType{RecordType: recordTypeBuilder.Build()}},
+		Type: &schema_pb.Type{Kind: &schema_pb.Type_RecordType{RecordType: recordType}},
 	})
 	return rtb
 }

weed/mq/schema/struct_to_schema_test.go

@@ -30,10 +30,10 @@ func TestStructToSchema(t *testing.T) {
 					Field2 string
 				}{},
 			},
-			want: NewRecordTypeBuilder().
+			want: RecordTypeBegin().
 					SetField("Field1", TypeInteger).
 					SetField("Field2", TypeString).
-				Build(),
+				RecordTypeEnd(),
 		},
 		{
 			name: "simple list",
@@ -43,10 +43,10 @@ func TestStructToSchema(t *testing.T) {
 					Field2 string
 				}{},
 			},
-			want: NewRecordTypeBuilder().
+			want: RecordTypeBegin().
 					SetField("Field1", ListOf(TypeInteger)).
 					SetField("Field2", TypeString).
-				Build(),
+				RecordTypeEnd(),
 		},
 		{
 			name: "simple []byte",
@@ -55,9 +55,9 @@ func TestStructToSchema(t *testing.T) {
 					Field2 []byte
 				}{},
 			},
-			want: NewRecordTypeBuilder().
+			want: RecordTypeBegin().
 					SetField("Field2", TypeBytes).
-				Build(),
+				RecordTypeEnd(),
 		},
 		{
 			name: "nested simpe structs",
@@ -70,13 +70,15 @@ func TestStructToSchema(t *testing.T) {
 					}
 				}{},
 			},
-			want: NewRecordTypeBuilder().
+			want: RecordTypeBegin().
 				SetField("Field1", TypeInteger).
-				SetRecordField("Field2", NewRecordTypeBuilder().
+				SetRecordField("Field2",
+					RecordTypeBegin().
 						SetField("Field3", TypeString).
-					SetField("Field4", TypeInteger),
+						SetField("Field4", TypeInteger).
+					RecordTypeEnd(),
 				).
-				Build(),
+				RecordTypeEnd(),
 		},
 		{
 			name: "nested struct type",
@@ -93,17 +95,19 @@ func TestStructToSchema(t *testing.T) {
 					}
 				}{},
 			},
-			want: NewRecordTypeBuilder().
+			want: RecordTypeBegin().
 				SetField("Field1", TypeInteger).
-				SetRecordField("Field2", NewRecordTypeBuilder().
+				SetRecordField("Field2", RecordTypeBegin().
 					SetField("Field3", TypeString).
 					SetField("Field4", ListOf(TypeInteger)).
-					SetRecordField("Field5", NewRecordTypeBuilder().
+					SetRecordField("Field5",
+						RecordTypeBegin().
 							SetField("Field6", TypeString).
-						SetField("Field7", TypeBytes),
-					),
+							SetField("Field7", TypeBytes).
+						RecordTypeEnd(),
+					).RecordTypeEnd(),
 				).
-				Build(),
+				RecordTypeEnd(),
 		},
 	}
 

weed/mq/schema/to_parquet_levels_test.go

@@ -18,16 +18,21 @@ func TestToParquetLevels(t *testing.T) {
 		{
 			name: "nested type",
 			args: args{
-				NewRecordTypeBuilder().
+				RecordTypeBegin().
 					SetField("ID", TypeLong).
 					SetField("CreatedAt", TypeLong).
-					SetRecordField("Person", NewRecordTypeBuilder().
+					SetRecordField("Person",
+						RecordTypeBegin().
 							SetField("zName", TypeString).
-						SetField("emails", ListOf(TypeString))).
+							SetField("emails", ListOf(TypeString)).
+						RecordTypeEnd()).
 					SetField("Company", TypeString).
-					SetRecordField("Address", NewRecordTypeBuilder().
+					SetRecordField("Address",
+						RecordTypeBegin().
 							SetField("Street", TypeString).
-						SetField("City", TypeString)).Build(),
+							SetField("City", TypeString).
+						RecordTypeEnd()).
+					RecordTypeEnd(),
 			},
 			want: &ParquetLevels{
 				startColumnIndex: 0,

weed/mq/schema/write_parquet_test.go

@@ -12,16 +12,21 @@ import (
 
 func TestWriteReadParquet(t *testing.T) {
 	// create a schema_pb.RecordType
-	recordType := NewRecordTypeBuilder().
+	recordType := RecordTypeBegin().
 		SetField("ID", TypeLong).
 		SetField("CreatedAt", TypeLong).
-		SetRecordField("Person", NewRecordTypeBuilder().
+		SetRecordField("Person",
+			RecordTypeBegin().
 				SetField("zName", TypeString).
-			SetField("emails", ListOf(TypeString))).
+				SetField("emails", ListOf(TypeString)).
+			RecordTypeEnd()).
 		SetField("Company", TypeString).
-		SetRecordField("Address", NewRecordTypeBuilder().
+		SetRecordField("Address",
+			RecordTypeBegin().
 				SetField("Street", TypeString).
-			SetField("City", TypeString)).Build()
+				SetField("City", TypeString).
+			RecordTypeEnd()).
+		RecordTypeEnd()
 	fmt.Printf("RecordType: %v\n", recordType)
 
 	// create a parquet schema