113 lines
3 KiB
Go
113 lines
3 KiB
Go
/*
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Copyright 2017 Google Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package spanner
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import (
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"encoding/base64"
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"strconv"
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"time"
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"cloud.google.com/go/civil"
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proto3 "github.com/golang/protobuf/ptypes/struct"
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sppb "google.golang.org/genproto/googleapis/spanner/v1"
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)
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// Helpers to generate protobuf values and Cloud Spanner types.
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func stringProto(s string) *proto3.Value {
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return &proto3.Value{Kind: stringKind(s)}
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}
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func stringKind(s string) *proto3.Value_StringValue {
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return &proto3.Value_StringValue{StringValue: s}
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}
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func stringType() *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_STRING}
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}
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func boolProto(b bool) *proto3.Value {
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return &proto3.Value{Kind: &proto3.Value_BoolValue{BoolValue: b}}
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}
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func boolType() *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_BOOL}
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}
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func intProto(n int64) *proto3.Value {
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return &proto3.Value{Kind: &proto3.Value_StringValue{StringValue: strconv.FormatInt(n, 10)}}
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}
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func intType() *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_INT64}
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}
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func floatProto(n float64) *proto3.Value {
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return &proto3.Value{Kind: &proto3.Value_NumberValue{NumberValue: n}}
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}
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func floatType() *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_FLOAT64}
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}
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func bytesProto(b []byte) *proto3.Value {
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return &proto3.Value{Kind: &proto3.Value_StringValue{StringValue: base64.StdEncoding.EncodeToString(b)}}
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}
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func bytesType() *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_BYTES}
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}
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func timeProto(t time.Time) *proto3.Value {
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return stringProto(t.UTC().Format(time.RFC3339Nano))
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}
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func timeType() *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_TIMESTAMP}
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}
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func dateProto(d civil.Date) *proto3.Value {
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return stringProto(d.String())
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}
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func dateType() *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_DATE}
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}
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func listProto(p ...*proto3.Value) *proto3.Value {
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return &proto3.Value{Kind: &proto3.Value_ListValue{ListValue: &proto3.ListValue{Values: p}}}
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}
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func listValueProto(p ...*proto3.Value) *proto3.ListValue {
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return &proto3.ListValue{Values: p}
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}
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func listType(t *sppb.Type) *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_ARRAY, ArrayElementType: t}
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}
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func mkField(n string, t *sppb.Type) *sppb.StructType_Field {
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return &sppb.StructType_Field{n, t}
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}
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func structType(fields ...*sppb.StructType_Field) *sppb.Type {
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return &sppb.Type{Code: sppb.TypeCode_STRUCT, StructType: &sppb.StructType{Fields: fields}}
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}
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func nullProto() *proto3.Value {
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return &proto3.Value{Kind: &proto3.Value_NullValue{NullValue: proto3.NullValue_NULL_VALUE}}
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}
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