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
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
|
#pragma once
#include <util/generic/set.h>
#include <util/generic/vector.h>
#include <util/generic/map.h>
#include <util/generic/hash.h>
#include <util/generic/hash_set.h>
#include <util/string/cast.h>
#include <util/generic/yexception.h>
#include "scheme.h"
namespace NJsonConverters {
class IJsonSerializable {
public:
virtual NSc::TValue ToTValue() const = 0;
virtual void FromTValue(const NSc::TValue&, const bool validate) = 0;
const TString ToJson(const bool sort = false) const {
return ToTValue().ToJson(sort);
};
void FromJson(const TStringBuf& json, const bool validate = false) {
NSc::TValue v = NSc::TValue::FromJson(json);
FromTValue(v, validate);
}
virtual ~IJsonSerializable(){};
};
//////////////////////////////////////////////////////////////////////
// fwd declarations
//////////////////////////////////////////////////////////////////////
//TVector
template <typename T, typename A>
NSc::TValue ToTValue(const TVector<T, A>& x);
template <typename T, typename A>
void FromTValue(const NSc::TValue& x, TVector<T, A>& out, const bool validate);
//THashMap
template <class Key, class T, class HashFcn, class EqualKey, class Alloc>
NSc::TValue ToTValue(const THashMap<Key, T, HashFcn, EqualKey, Alloc>& x);
template <class Key, class T, class HashFcn, class EqualKey, class Alloc>
void FromTValue(const NSc::TValue& x, THashMap<Key, T, HashFcn, EqualKey, Alloc>& out, const bool validate);
//TMap
template <class K, class V, class Less, class A>
NSc::TValue ToTValue(const TMap<K, V, Less, A>& x);
template <class K, class V, class Less, class A>
void FromTValue(const NSc::TValue& x, TMap<K, V, Less, A>& out, const bool validate);
//THashSet
template <class V, class H, class E, class A>
NSc::TValue ToTValue(const THashSet<V, H, E, A>& x);
template <class V, class H, class E, class A>
void FromTValue(const NSc::TValue& x, THashSet<V, H, E, A>& out, const bool validate);
//TSet
template <class K, class L, class A>
NSc::TValue ToTValue(const TSet<K, L, A>& x);
template <class K, class L, class A>
void FromTValue(const NSc::TValue& x, TSet<K, L, A>& out, const bool validate);
//std::pair
template <class T1, class T2>
NSc::TValue ToTValue(const std::pair<T1, T2>& x);
template <class T1, class T2>
void FromTValue(const NSc::TValue& x, std::pair<T1, T2>& out, const bool validate);
//////////////////////////////////////////////////////////////////////
// simple From, To helpers
//////////////////////////////////////////////////////////////////////
template <typename T, bool HasSerializer>
struct TValueAndStrokaConv {};
template <typename T>
struct TValueAndStrokaConv<T, 0> {
static NSc::TValue ToTValue(const T& x) {
return NSc::TValue(x);
}
static void FromTValue(const NSc::TValue& x, T& out, const bool) {
out = x;
}
static TString ToString(const T& x) {
return ::ToString(x);
}
static void FromString(const TStringBuf& str, T& res, const bool) {
res = ::FromString<T>(str);
}
};
template <typename T>
struct TValueAndStrokaConv<T, 1> {
static NSc::TValue ToTValue(const T& x) {
return x.ToTValue();
}
static void FromTValue(const NSc::TValue& x, T& out, const bool validate) {
out.FromTValue(x, validate);
}
static TString ToString(const T& x) {
return x.ToJson();
}
static void FromString(const TStringBuf& str, T& res, const bool validate) {
res.FromJson(str, validate);
}
};
template <typename T>
NSc::TValue ToTValue(const T& x) {
return TValueAndStrokaConv<T, std::is_base_of<IJsonSerializable, T>::value>::ToTValue(x);
}
template <typename T>
void FromTValue(const NSc::TValue& x, T& out, const bool validate) {
return TValueAndStrokaConv<T, std::is_base_of<IJsonSerializable, T>::value>::FromTValue(x, out, validate);
}
template <typename T>
T FromTValue(const NSc::TValue& x, const bool validate) {
T ret;
FromTValue(x, ret, validate);
return ret;
}
template <typename T>
TString ToString(const T& x) {
return TValueAndStrokaConv<T, std::is_base_of<IJsonSerializable, T>::value>::ToString(x);
}
template <typename T>
void FromString(const TStringBuf& str, T& res, const bool validate) {
return TValueAndStrokaConv<T, std::is_base_of<IJsonSerializable, T>::value>::FromString(str, res, validate);
}
template <typename T>
T FromString(const TStringBuf& str, bool validate) {
T ret;
FromString(str, ret, validate);
return ret;
}
namespace NPrivate {
template <typename T>
NSc::TValue ToTValueDict(const T& dict) {
NSc::TValue out;
out.SetDict();
for (typename T::const_iterator it = dict.begin(); it != dict.end(); ++it) {
out[ToString(it->first)] = NJsonConverters::ToTValue(it->second);
}
return out;
}
template <typename T>
void FromTValueDict(const NSc::TValue& x, T& out, bool validate) {
typedef typename T::key_type TKey;
typedef typename T::mapped_type TMapped;
if (validate)
Y_ENSURE(x.IsDict() || x.IsNull(), "not valid input scheme");
out.clear();
if (x.IsDict()) {
const NSc::TDict& dict = x.GetDict();
for (const auto& it : dict) {
TKey key = NJsonConverters::FromString<TKey>(it.first, validate);
TMapped val = NJsonConverters::FromTValue<TMapped>(it.second, validate);
out.insert(std::pair<TKey, TMapped>(key, val));
}
}
}
template <typename T>
NSc::TValue ToTValueSet(const T& set) {
NSc::TValue out;
out.SetDict();
for (typename T::const_iterator it = set.begin(); it != set.end(); ++it) {
out[ToString(*it)] = NSc::Null();
}
return out;
}
template <typename T>
void FromTValueSet(const NSc::TValue& x, T& out, const bool validate) {
typedef typename T::key_type TKey;
if (validate)
Y_ENSURE(x.IsDict() || x.IsNull(), "not valid input scheme");
out.clear();
if (x.IsDict()) {
const NSc::TDict& dict = x.GetDict();
for (const auto& it : dict) {
TKey key;
NJsonConverters::FromString<TKey>(it.first, key, validate);
out.insert(key);
}
}
}
}
//////////////////////////////////////////////////////////////////////
// TVector
//////////////////////////////////////////////////////////////////////
template <typename T, typename A>
NSc::TValue ToTValue(const TVector<T, A>& x) {
NSc::TValue out;
out.SetArray();
for (typename TVector<T, A>::const_iterator it = x.begin(); it != x.end(); ++it)
out.Push(NJsonConverters::ToTValue(*it));
return out;
}
template <typename T, typename A>
void FromTValue(const NSc::TValue& x, TVector<T, A>& out, const bool validate) {
if (validate)
Y_ENSURE(x.IsArray() || x.IsNull(), "not valid input scheme");
out.clear();
if (x.IsArray()) {
const NSc::TArray& arr = x.GetArray();
out.reserve(arr.size());
for (const auto& it : arr) {
T val;
NJsonConverters::FromTValue(it, val, validate);
out.push_back(val);
}
}
}
//////////////////////////////////////////////////////////////////////
// THashMap & TMap
//////////////////////////////////////////////////////////////////////
template <class Key, class T, class HashFcn, class EqualKey, class Alloc>
NSc::TValue ToTValue(const THashMap<Key, T, HashFcn, EqualKey, Alloc>& x) {
return NPrivate::ToTValueDict(x);
}
template <class Key, class T, class HashFcn, class EqualKey, class Alloc>
void FromTValue(const NSc::TValue& x, THashMap<Key, T, HashFcn, EqualKey, Alloc>& out, const bool validate) {
NPrivate::FromTValueDict(x, out, validate);
}
template <class K, class V, class Less, class A>
NSc::TValue ToTValue(const TMap<K, V, Less, A>& x) {
return NPrivate::ToTValueDict(x);
}
template <class K, class V, class Less, class A>
void FromTValue(const NSc::TValue& x, TMap<K, V, Less, A>& out, const bool validate) {
NPrivate::FromTValueDict(x, out, validate);
}
//////////////////////////////////////////////////////////////////////
// THashSet & TSet
//////////////////////////////////////////////////////////////////////
template <class V, class H, class E, class A>
NSc::TValue ToTValue(const THashSet<V, H, E, A>& x) {
return NPrivate::ToTValueSet(x);
}
template <class V, class H, class E, class A>
void FromTValue(const NSc::TValue& x, THashSet<V, H, E, A>& out, const bool validate) {
NPrivate::FromTValueSet(x, out, validate);
}
template <class K, class L, class A>
NSc::TValue ToTValue(const TSet<K, L, A>& x) {
return NPrivate::ToTValueSet(x);
}
template <class K, class L, class A>
void FromTValue(const NSc::TValue& x, TSet<K, L, A>& out, const bool validate) {
NPrivate::FromTValueSet(x, out, validate);
}
//////////////////////////////////////////////////////////////////////
// std::pair
//////////////////////////////////////////////////////////////////////
template <class T1, class T2>
NSc::TValue ToTValue(const std::pair<T1, T2>& x) {
NSc::TValue out;
out.SetArray();
out.Push(NJsonConverters::ToTValue(x.first));
out.Push(NJsonConverters::ToTValue(x.second));
return out;
}
template <class T1, class T2>
void FromTValue(const NSc::TValue& x, std::pair<T1, T2>& out, const bool validate) {
if (validate)
Y_ENSURE(x.IsArray() || x.IsNull(), "not valid input scheme");
if (x.IsArray()) {
const NSc::TArray& arr = x.GetArray();
if (arr.size() == 2) {
T1 val0;
T2 val1;
NJsonConverters::FromTValue(arr[0], val0, validate);
NJsonConverters::FromTValue(arr[1], val1, validate);
out.first = val0;
out.second = val1;
}
}
}
//////////////////////////////////////////////////////////////////////
// global user functions
//////////////////////////////////////////////////////////////////////
template <typename T>
TString ToJson(const T& val, const bool sort = false) {
return NJsonConverters::ToTValue(val).ToJson(sort);
}
template <typename T>
T FromJson(const TStringBuf& json, bool validate = false) {
NSc::TValue v = NSc::TValue::FromJson(json);
T ret;
NJsonConverters::FromTValue(v, ret, validate);
return ret;
}
}
|
