1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
#include "schema_from_proto.h"
#include <yt/yt_proto/yt/formats/extension.pb.h>
#include <util/generic/algorithm.h>
#include <util/generic/string.h>
#include <util/string/printf.h>
#include <util/string/vector.h>
namespace pb = google::protobuf;
namespace NYql {
namespace NPureCalc {
TProtoSchemaOptions::TProtoSchemaOptions()
: EnumPolicy(EEnumPolicy::Int32)
, ListIsOptional(false)
{
}
TProtoSchemaOptions& TProtoSchemaOptions::SetEnumPolicy(EEnumPolicy policy) {
EnumPolicy = policy;
return *this;
}
TProtoSchemaOptions& TProtoSchemaOptions::SetListIsOptional(bool value) {
ListIsOptional = value;
return *this;
}
TProtoSchemaOptions& TProtoSchemaOptions::SetFieldRenames(
THashMap<TString, TString> fieldRenames
) {
FieldRenames = std::move(fieldRenames);
return *this;
}
namespace {
EEnumFormatType EnumFormatTypeWithYTFlag(const pb::FieldDescriptor& enumField, EEnumFormatType defaultEnumFormatType) {
auto flags = enumField.options().GetRepeatedExtension(NYT::flags);
for (auto flag : flags) {
if (flag == NYT::EWrapperFieldFlag::ENUM_INT) {
return EEnumFormatType::Int32;
} else if (flag == NYT::EWrapperFieldFlag::ENUM_STRING) {
return EEnumFormatType::String;
}
}
return defaultEnumFormatType;
}
}
EEnumFormatType EnumFormatType(const pb::FieldDescriptor& enumField, EEnumPolicy enumPolicy) {
switch (enumPolicy) {
case EEnumPolicy::Int32:
return EEnumFormatType::Int32;
case EEnumPolicy::String:
return EEnumFormatType::String;
case EEnumPolicy::YTFlagDefaultInt32:
return EnumFormatTypeWithYTFlag(enumField, EEnumFormatType::Int32);
case EEnumPolicy::YTFlagDefaultString:
return EnumFormatTypeWithYTFlag(enumField, EEnumFormatType::String);
}
}
namespace {
const char* FormatTypeName(const pb::FieldDescriptor* field, EEnumPolicy enumPolicy) {
switch (field->type()) {
case pb::FieldDescriptor::TYPE_DOUBLE:
return "Double";
case pb::FieldDescriptor::TYPE_FLOAT:
return "Float";
case pb::FieldDescriptor::TYPE_INT64:
case pb::FieldDescriptor::TYPE_SFIXED64:
case pb::FieldDescriptor::TYPE_SINT64:
return "Int64";
case pb::FieldDescriptor::TYPE_UINT64:
case pb::FieldDescriptor::TYPE_FIXED64:
return "Uint64";
case pb::FieldDescriptor::TYPE_INT32:
case pb::FieldDescriptor::TYPE_SFIXED32:
case pb::FieldDescriptor::TYPE_SINT32:
return "Int32";
case pb::FieldDescriptor::TYPE_UINT32:
case pb::FieldDescriptor::TYPE_FIXED32:
return "Uint32";
case pb::FieldDescriptor::TYPE_BOOL:
return "Bool";
case pb::FieldDescriptor::TYPE_STRING:
return "Utf8";
case pb::FieldDescriptor::TYPE_BYTES:
return "String";
case pb::FieldDescriptor::TYPE_ENUM:
switch (EnumFormatType(*field, enumPolicy)) {
case EEnumFormatType::Int32:
return "Int32";
case EEnumFormatType::String:
return "String";
}
default:
ythrow yexception() << "Unsupported protobuf type: " << field->type_name()
<< ", field: " << field->name() << ", " << int(field->type());
}
}
}
NYT::TNode MakeSchemaFromProto(const pb::Descriptor& descriptor, TVector<const pb::Descriptor*>& nested, const TProtoSchemaOptions& options) {
if (Find(nested, &descriptor) != nested.end()) {
TVector<TString> nestedNames;
for (const auto* d : nested) {
nestedNames.push_back(d->full_name());
}
nestedNames.push_back(descriptor.full_name());
ythrow yexception() << Sprintf("recursive messages are not supported (%s)",
JoinStrings(nestedNames, "->").c_str());
}
nested.push_back(&descriptor);
auto items = NYT::TNode::CreateList();
for (int fieldNo = 0; fieldNo < descriptor.field_count(); ++fieldNo) {
const auto& fieldDescriptor = *descriptor.field(fieldNo);
auto name = fieldDescriptor.name();
if (
auto renamePtr = options.FieldRenames.FindPtr(name);
nested.size() == 1 && renamePtr
) {
name = *renamePtr;
}
NYT::TNode itemType;
if (fieldDescriptor.type() == pb::FieldDescriptor::TYPE_MESSAGE) {
itemType = MakeSchemaFromProto(*fieldDescriptor.message_type(), nested, options);
} else {
itemType = NYT::TNode::CreateList();
itemType.Add("DataType");
itemType.Add(FormatTypeName(&fieldDescriptor, options.EnumPolicy));
}
switch (fieldDescriptor.label()) {
case pb::FieldDescriptor::LABEL_OPTIONAL:
{
auto optionalType = NYT::TNode::CreateList();
optionalType.Add("OptionalType");
optionalType.Add(std::move(itemType));
itemType = std::move(optionalType);
}
break;
case pb::FieldDescriptor::LABEL_REQUIRED:
break;
case pb::FieldDescriptor::LABEL_REPEATED:
{
auto listType = NYT::TNode::CreateList();
listType.Add("ListType");
listType.Add(std::move(itemType));
itemType = std::move(listType);
if (options.ListIsOptional) {
itemType = NYT::TNode::CreateList().Add("OptionalType").Add(std::move(itemType));
}
}
break;
default:
ythrow yexception() << "Unknown protobuf label: " << (ui32)fieldDescriptor.label() << ", field: " << name;
}
auto itemNode = NYT::TNode::CreateList();
itemNode.Add(name);
itemNode.Add(std::move(itemType));
items.Add(std::move(itemNode));
}
auto root = NYT::TNode::CreateList();
root.Add("StructType");
root.Add(std::move(items));
nested.pop_back();
return root;
}
NYT::TNode MakeSchemaFromProto(const pb::Descriptor& descriptor, const TProtoSchemaOptions& options) {
TVector<const pb::Descriptor*> nested;
return MakeSchemaFromProto(descriptor, nested, options);
}
NYT::TNode MakeVariantSchemaFromProtos(const TVector<const pb::Descriptor*>& descriptors, const TProtoSchemaOptions& options) {
Y_ENSURE(options.FieldRenames.empty(), "Renames are not supported in variant mode");
auto tupleItems = NYT::TNode::CreateList();
for (auto descriptor : descriptors) {
tupleItems.Add(MakeSchemaFromProto(*descriptor, options));
}
auto tupleType = NYT::TNode::CreateList();
tupleType.Add("TupleType");
tupleType.Add(std::move(tupleItems));
auto variantType = NYT::TNode::CreateList();
variantType.Add("VariantType");
variantType.Add(std::move(tupleType));
return variantType;
}
}
}
|
