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1 | /* |
2 | * Licensed to the Apache Software Foundation (ASF) under one | |
3 | * or more contributor license agreements. See the NOTICE file | |
4 | * distributed with this work for additional information | |
5 | * regarding copyright ownership. The ASF licenses this file | |
6 | * to you under the Apache License, Version 2.0 (the | |
7 | * "License"); you may not use this file except in compliance | |
8 | * with the License. You may obtain a copy of the License at | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, | |
13 | * software distributed under the License is distributed on an | |
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
15 | * KIND, either express or implied. See the License for the | |
16 | * specific language governing permissions and limitations | |
17 | * under the License. | |
18 | * | |
19 | * Contains some contributions under the Thrift Software License. | |
20 | * Please see doc/old-thrift-license.txt in the Thrift distribution for | |
21 | * details. | |
22 | */ | |
23 | ||
24 | #include <fstream> | |
25 | #include <iostream> | |
26 | #include <sstream> | |
27 | #include <limits> | |
28 | ||
29 | #include <stdlib.h> | |
30 | #include <sys/stat.h> | |
31 | #include <sstream> | |
32 | ||
33 | #include "thrift/platform.h" | |
34 | #include "thrift/generate/t_generator.h" | |
35 | ||
36 | using std::map; | |
37 | using std::ofstream; | |
38 | using std::ostream; | |
39 | using std::ostringstream; | |
40 | using std::string; | |
41 | using std::stringstream; | |
42 | using std::vector; | |
43 | using std::stack; | |
44 | ||
45 | static const string endl = "\n"; | |
46 | static const string quot = "\""; | |
47 | static const bool NO_INDENT = false; | |
48 | static const bool FORCE_STRING = true; | |
49 | ||
50 | class t_json_generator : public t_generator { | |
51 | public: | |
52 | t_json_generator(t_program* program, | |
53 | const std::map<std::string, std::string>& parsed_options, | |
54 | const std::string& option_string) | |
55 | : t_generator(program) { | |
56 | (void)option_string; | |
57 | std::map<std::string, std::string>::const_iterator iter; | |
58 | ||
59 | should_merge_includes_ = false; | |
60 | for( iter = parsed_options.begin(); iter != parsed_options.end(); ++iter) { | |
61 | if( iter->first.compare("merge") == 0) { | |
62 | should_merge_includes_ = true; | |
63 | } else { | |
64 | throw "unknown option json:" + iter->first; | |
65 | } | |
66 | } | |
67 | ||
68 | out_dir_base_ = "gen-json"; | |
69 | } | |
70 | ||
71 | ~t_json_generator() override = default; | |
72 | ||
73 | /** | |
74 | * Init and close methods | |
75 | */ | |
76 | ||
77 | void init_generator() override; | |
78 | void close_generator() override; | |
79 | ||
80 | void generate_typedef(t_typedef* ttypedef) override; | |
81 | void generate_enum(t_enum* tenum) override; | |
82 | void generate_program() override; | |
83 | void generate_function(t_function* tfunc); | |
84 | void generate_field(t_field* field); | |
85 | ||
86 | void generate_service(t_service* tservice) override; | |
87 | void generate_struct(t_struct* tstruct) override; | |
88 | ||
89 | private: | |
90 | bool should_merge_includes_; | |
91 | ||
92 | ofstream_with_content_based_conditional_update f_json_; | |
93 | std::stack<bool> comma_needed_; | |
94 | ||
95 | template <typename T> | |
96 | string number_to_string(T t) { | |
97 | std::ostringstream out; | |
98 | out.imbue(std::locale::classic()); | |
99 | out.precision(std::numeric_limits<T>::digits10); | |
100 | out << t; | |
101 | return out.str(); | |
102 | } | |
103 | ||
104 | template <typename T> | |
105 | void write_number(T n) { | |
106 | f_json_ << number_to_string(n); | |
107 | } | |
108 | ||
109 | string get_type_name(t_type* ttype); | |
110 | string get_qualified_name(t_type* ttype); | |
111 | ||
112 | void start_object(bool should_indent = true); | |
113 | void start_array(); | |
114 | void end_object(); | |
115 | void end_array(); | |
116 | void write_comma_if_needed(); | |
117 | void indicate_comma_needed(); | |
118 | string escape_json_string(const string& input); | |
119 | string json_str(const string& str); | |
120 | void merge_includes(t_program*); | |
121 | ||
122 | void generate_constant(t_const* con); | |
123 | ||
124 | void write_type_spec_entry(const char* name, t_type* ttype); | |
125 | void write_type_spec_object(const char* name, t_type* ttype); | |
126 | void write_type_spec(t_type* ttype); | |
127 | void write_string(const string& value); | |
128 | void write_value(t_type* tvalue); | |
129 | void write_const_value(t_const_value* value, bool force_string = false); | |
130 | void write_key_and(string key); | |
131 | void write_key_and_string(string key, string val); | |
132 | void write_key_and_integer(string key, int val); | |
133 | void write_key_and_bool(string key, bool val); | |
134 | }; | |
135 | ||
136 | void t_json_generator::init_generator() { | |
137 | MKDIR(get_out_dir().c_str()); | |
138 | ||
139 | string f_json_name = get_out_dir() + program_->get_name() + ".json"; | |
140 | f_json_.open(f_json_name.c_str()); | |
141 | ||
142 | // Merge all included programs into this one so we can output one big file. | |
143 | if (should_merge_includes_) { | |
144 | merge_includes(program_); | |
145 | } | |
146 | } | |
147 | ||
148 | string t_json_generator::escape_json_string(const string& input) { | |
149 | std::ostringstream ss; | |
150 | for (char iter : input) { | |
151 | switch (iter) { | |
152 | case '\\': | |
153 | ss << "\\\\"; | |
154 | break; | |
155 | case '"': | |
156 | ss << "\\\""; | |
157 | break; | |
158 | case '/': | |
159 | ss << "\\/"; | |
160 | break; | |
161 | case '\b': | |
162 | ss << "\\b"; | |
163 | break; | |
164 | case '\f': | |
165 | ss << "\\f"; | |
166 | break; | |
167 | case '\n': | |
168 | ss << "\\n"; | |
169 | break; | |
170 | case '\r': | |
171 | ss << "\\r"; | |
172 | break; | |
173 | case '\t': | |
174 | ss << "\\t"; | |
175 | break; | |
176 | default: | |
177 | ss << iter; | |
178 | break; | |
179 | } | |
180 | } | |
181 | return ss.str(); | |
182 | } | |
183 | ||
184 | void t_json_generator::start_object(bool should_indent) { | |
185 | f_json_ << (should_indent ? indent() : "") << "{" << endl; | |
186 | indent_up(); | |
187 | comma_needed_.push(false); | |
188 | } | |
189 | ||
190 | void t_json_generator::start_array() { | |
191 | f_json_ << "[" << endl; | |
192 | indent_up(); | |
193 | comma_needed_.push(false); | |
194 | } | |
195 | ||
196 | void t_json_generator::write_comma_if_needed() { | |
197 | if (comma_needed_.top()) { | |
198 | f_json_ << "," << endl; | |
199 | } | |
200 | } | |
201 | ||
202 | void t_json_generator::indicate_comma_needed() { | |
203 | comma_needed_.pop(); | |
204 | comma_needed_.push(true); | |
205 | } | |
206 | ||
207 | void t_json_generator::write_key_and(string key) { | |
208 | write_comma_if_needed(); | |
209 | indent(f_json_) << json_str(key) << ": "; | |
210 | indicate_comma_needed(); | |
211 | } | |
212 | ||
213 | void t_json_generator::write_key_and_integer(string key, int val) { | |
214 | write_comma_if_needed(); | |
215 | indent(f_json_) << json_str(key) << ": " << number_to_string(val); | |
216 | indicate_comma_needed(); | |
217 | } | |
218 | ||
219 | void t_json_generator::write_key_and_string(string key, string val) { | |
220 | write_comma_if_needed(); | |
221 | indent(f_json_) << json_str(key) << ": " << json_str(val); | |
222 | indicate_comma_needed(); | |
223 | } | |
224 | ||
225 | void t_json_generator::write_key_and_bool(string key, bool val) { | |
226 | write_comma_if_needed(); | |
227 | indent(f_json_) << json_str(key) << ": " << (val ? "true" : "false"); | |
228 | indicate_comma_needed(); | |
229 | } | |
230 | ||
231 | void t_json_generator::end_object() { | |
232 | indent_down(); | |
233 | f_json_ << endl << indent() << "}"; | |
234 | comma_needed_.pop(); | |
235 | } | |
236 | ||
237 | void t_json_generator::end_array() { | |
238 | indent_down(); | |
239 | if (comma_needed_.top()) { | |
240 | f_json_ << endl; | |
241 | } | |
242 | indent(f_json_) << "]"; | |
243 | comma_needed_.pop(); | |
244 | } | |
245 | ||
246 | void t_json_generator::write_type_spec_object(const char* name, t_type* ttype) { | |
247 | ttype = ttype->get_true_type(); | |
248 | if (ttype->is_struct() || ttype->is_xception() || ttype->is_container()) { | |
249 | write_key_and(name); | |
250 | start_object(NO_INDENT); | |
251 | write_key_and("typeId"); | |
252 | write_type_spec(ttype); | |
253 | end_object(); | |
254 | } | |
255 | } | |
256 | ||
257 | void t_json_generator::write_type_spec_entry(const char* name, t_type* ttype) { | |
258 | write_key_and(name); | |
259 | write_type_spec(ttype); | |
260 | } | |
261 | ||
262 | void t_json_generator::write_type_spec(t_type* ttype) { | |
263 | ttype = ttype->get_true_type(); | |
264 | ||
265 | write_string(get_type_name(ttype)); | |
266 | ||
267 | if (ttype->annotations_.size() > 0) { | |
268 | write_key_and("annotations"); | |
269 | start_object(); | |
270 | for (auto & annotation : ttype->annotations_) { | |
271 | write_key_and_string(annotation.first, annotation.second); | |
272 | } | |
273 | end_object(); | |
274 | } | |
275 | ||
276 | if (ttype->is_struct() || ttype->is_xception()) { | |
277 | write_key_and_string("class", get_qualified_name(ttype)); | |
278 | } else if (ttype->is_map()) { | |
279 | t_type* ktype = ((t_map*)ttype)->get_key_type(); | |
280 | t_type* vtype = ((t_map*)ttype)->get_val_type(); | |
281 | write_key_and_string("keyTypeId", get_type_name(ktype)); | |
282 | write_key_and_string("valueTypeId", get_type_name(vtype)); | |
283 | write_type_spec_object("keyType", ktype); | |
284 | write_type_spec_object("valueType", vtype); | |
285 | } else if (ttype->is_list()) { | |
286 | t_type* etype = ((t_list*)ttype)->get_elem_type(); | |
287 | write_key_and_string("elemTypeId", get_type_name(etype)); | |
288 | write_type_spec_object("elemType", etype); | |
289 | } else if (ttype->is_set()) { | |
290 | t_type* etype = ((t_set*)ttype)->get_elem_type(); | |
291 | write_key_and_string("elemTypeId", get_type_name(etype)); | |
292 | write_type_spec_object("elemType", etype); | |
293 | } | |
294 | } | |
295 | ||
296 | void t_json_generator::close_generator() { | |
297 | f_json_ << endl; | |
298 | f_json_.close(); | |
299 | } | |
300 | ||
301 | void t_json_generator::merge_includes(t_program* program) { | |
302 | vector<t_program*> includes = program->get_includes(); | |
303 | vector<t_program*>::iterator inc_iter; | |
304 | for (inc_iter = includes.begin(); inc_iter != includes.end(); ++inc_iter) { | |
305 | t_program* include = *inc_iter; | |
306 | // recurse in case we get crazy | |
307 | merge_includes(include); | |
308 | // merge enums | |
309 | vector<t_enum*> enums = include->get_enums(); | |
310 | vector<t_enum*>::iterator en_iter; | |
311 | for (en_iter = enums.begin(); en_iter != enums.end(); ++en_iter) { | |
312 | program->add_enum(*en_iter); | |
313 | } | |
314 | // merge typedefs | |
315 | vector<t_typedef*> typedefs = include->get_typedefs(); | |
316 | vector<t_typedef*>::iterator td_iter; | |
317 | for (td_iter = typedefs.begin(); td_iter != typedefs.end(); ++td_iter) { | |
318 | program->add_typedef(*td_iter); | |
319 | } | |
320 | // merge structs | |
321 | vector<t_struct*> objects = include->get_objects(); | |
322 | vector<t_struct*>::iterator o_iter; | |
323 | for (o_iter = objects.begin(); o_iter != objects.end(); ++o_iter) { | |
324 | program->add_struct(*o_iter); | |
325 | } | |
326 | // merge constants | |
327 | vector<t_const*> consts = include->get_consts(); | |
328 | vector<t_const*>::iterator c_iter; | |
329 | for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) { | |
330 | program->add_const(*c_iter); | |
331 | } | |
332 | ||
333 | // merge services | |
334 | vector<t_service*> services = include->get_services(); | |
335 | vector<t_service*>::iterator sv_iter; | |
336 | for (sv_iter = services.begin(); sv_iter != services.end(); ++sv_iter) { | |
337 | program->add_service(*sv_iter); | |
338 | } | |
339 | } | |
340 | } | |
341 | ||
342 | void t_json_generator::generate_program() { | |
343 | ||
344 | init_generator(); | |
345 | ||
346 | start_object(); | |
347 | write_key_and_string("name", program_->get_name()); | |
348 | if (program_->has_doc()) { | |
349 | write_key_and_string("doc", program_->get_doc()); | |
350 | } | |
351 | ||
352 | // When merging includes, the "namespaces" and "includes" sections | |
353 | // become ambiguous, so just skip them. | |
354 | if (!should_merge_includes_) { | |
355 | // Generate namespaces | |
356 | write_key_and("namespaces"); | |
357 | start_object(NO_INDENT); | |
358 | const map<string, string>& namespaces = program_->get_namespaces(); | |
359 | map<string, string>::const_iterator ns_it; | |
360 | for (ns_it = namespaces.begin(); ns_it != namespaces.end(); ++ns_it) { | |
361 | write_key_and_string(ns_it->first, ns_it->second); | |
362 | indicate_comma_needed(); | |
363 | } | |
364 | end_object(); | |
365 | ||
366 | // Generate includes | |
367 | write_key_and("includes"); | |
368 | start_array(); | |
369 | const vector<t_program*> includes = program_->get_includes(); | |
370 | vector<t_program*>::const_iterator inc_it; | |
371 | for (inc_it = includes.begin(); inc_it != includes.end(); ++inc_it) { | |
372 | write_comma_if_needed(); | |
373 | write_string((*inc_it)->get_name()); | |
374 | indicate_comma_needed(); | |
375 | } | |
376 | end_array(); | |
377 | } | |
378 | ||
379 | // Generate enums | |
380 | write_key_and("enums"); | |
381 | start_array(); | |
382 | vector<t_enum*> enums = program_->get_enums(); | |
383 | vector<t_enum*>::iterator en_iter; | |
384 | for (en_iter = enums.begin(); en_iter != enums.end(); ++en_iter) { | |
385 | write_comma_if_needed(); | |
386 | generate_enum(*en_iter); | |
387 | indicate_comma_needed(); | |
388 | } | |
389 | end_array(); | |
390 | ||
391 | // Generate typedefs | |
392 | write_key_and("typedefs"); | |
393 | start_array(); | |
394 | vector<t_typedef*> typedefs = program_->get_typedefs(); | |
395 | vector<t_typedef*>::iterator td_iter; | |
396 | for (td_iter = typedefs.begin(); td_iter != typedefs.end(); ++td_iter) { | |
397 | write_comma_if_needed(); | |
398 | generate_typedef(*td_iter); | |
399 | indicate_comma_needed(); | |
400 | } | |
401 | end_array(); | |
402 | ||
403 | // Generate structs, exceptions, and unions in declared order | |
404 | write_key_and("structs"); | |
405 | start_array(); | |
406 | vector<t_struct*> objects = program_->get_objects(); | |
407 | vector<t_struct*>::iterator o_iter; | |
408 | for (o_iter = objects.begin(); o_iter != objects.end(); ++o_iter) { | |
409 | write_comma_if_needed(); | |
410 | if ((*o_iter)->is_xception()) { | |
411 | generate_xception(*o_iter); | |
412 | } else { | |
413 | generate_struct(*o_iter); | |
414 | } | |
415 | indicate_comma_needed(); | |
416 | } | |
417 | end_array(); | |
418 | ||
419 | // Generate constants | |
420 | write_key_and("constants"); | |
421 | start_array(); | |
422 | vector<t_const*> consts = program_->get_consts(); | |
423 | vector<t_const*>::iterator c_iter; | |
424 | for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) { | |
425 | write_comma_if_needed(); | |
426 | generate_constant(*c_iter); | |
427 | indicate_comma_needed(); | |
428 | } | |
429 | end_array(); | |
430 | ||
431 | // Generate services | |
432 | write_key_and("services"); | |
433 | start_array(); | |
434 | vector<t_service*> services = program_->get_services(); | |
435 | vector<t_service*>::iterator sv_iter; | |
436 | for (sv_iter = services.begin(); sv_iter != services.end(); ++sv_iter) { | |
437 | write_comma_if_needed(); | |
438 | generate_service(*sv_iter); | |
439 | indicate_comma_needed(); | |
440 | } | |
441 | end_array(); | |
442 | ||
443 | end_object(); | |
444 | ||
445 | // Close the generator | |
446 | close_generator(); | |
447 | } | |
448 | ||
449 | void t_json_generator::generate_typedef(t_typedef* ttypedef) { | |
450 | start_object(); | |
451 | write_key_and_string("name", get_qualified_name(ttypedef)); | |
452 | write_key_and_string("typeId", get_type_name(ttypedef->get_true_type())); | |
453 | write_type_spec_object("type", ttypedef->get_true_type()); | |
454 | if (ttypedef->has_doc()) { | |
455 | write_key_and_string("doc", ttypedef->get_doc()); | |
456 | } | |
457 | if (ttypedef->annotations_.size() > 0) { | |
458 | write_key_and("annotations"); | |
459 | start_object(); | |
460 | for (auto & annotation : ttypedef->annotations_) { | |
461 | write_key_and_string(annotation.first, annotation.second); | |
462 | } | |
463 | end_object(); | |
464 | } | |
465 | end_object(); | |
466 | } | |
467 | ||
468 | void t_json_generator::write_string(const string& value) { | |
469 | f_json_ << quot << escape_json_string(value) << quot; | |
470 | } | |
471 | ||
472 | void t_json_generator::write_const_value(t_const_value* value, bool should_force_string) { | |
473 | ||
474 | switch (value->get_type()) { | |
475 | ||
476 | case t_const_value::CV_IDENTIFIER: | |
477 | case t_const_value::CV_INTEGER: | |
478 | if (should_force_string) { | |
479 | write_string(number_to_string(value->get_integer())); | |
480 | } else { | |
481 | write_number(value->get_integer()); | |
482 | } | |
483 | break; | |
484 | ||
485 | case t_const_value::CV_DOUBLE: | |
486 | if (should_force_string) { | |
487 | write_string(number_to_string(value->get_double())); | |
488 | } else { | |
489 | write_number(value->get_double()); | |
490 | } | |
491 | break; | |
492 | ||
493 | case t_const_value::CV_STRING: | |
494 | write_string(value->get_string()); | |
495 | break; | |
496 | ||
497 | case t_const_value::CV_LIST: { | |
498 | start_array(); | |
499 | std::vector<t_const_value*> list = value->get_list(); | |
500 | std::vector<t_const_value*>::iterator lit; | |
501 | for (lit = list.begin(); lit != list.end(); ++lit) { | |
502 | write_comma_if_needed(); | |
503 | f_json_ << indent(); | |
504 | write_const_value(*lit); | |
505 | indicate_comma_needed(); | |
506 | } | |
507 | end_array(); | |
508 | break; | |
509 | } | |
510 | ||
511 | case t_const_value::CV_MAP: { | |
512 | start_object(NO_INDENT); | |
513 | std::map<t_const_value*, t_const_value*, t_const_value::value_compare> map = value->get_map(); | |
514 | std::map<t_const_value*, t_const_value*, t_const_value::value_compare>::iterator mit; | |
515 | for (mit = map.begin(); mit != map.end(); ++mit) { | |
516 | write_comma_if_needed(); | |
517 | f_json_ << indent(); | |
518 | // JSON objects only allow string keys | |
519 | write_const_value(mit->first, FORCE_STRING); | |
520 | f_json_ << ": "; | |
521 | write_const_value(mit->second); | |
522 | indicate_comma_needed(); | |
523 | } | |
524 | end_object(); | |
525 | break; | |
526 | } | |
527 | ||
528 | default: | |
529 | f_json_ << "null"; | |
530 | break; | |
531 | } | |
532 | } | |
533 | ||
534 | string t_json_generator::json_str(const string& str) { | |
535 | return quot + escape_json_string(str) + quot; | |
536 | } | |
537 | ||
538 | void t_json_generator::generate_constant(t_const* con) { | |
539 | start_object(); | |
540 | ||
541 | write_key_and_string("name", con->get_name()); | |
542 | write_key_and_string("typeId", get_type_name(con->get_type())); | |
543 | write_type_spec_object("type", con->get_type()); | |
544 | ||
545 | if (con->has_doc()) { | |
546 | write_key_and_string("doc", con->get_doc()); | |
547 | } | |
548 | ||
549 | write_key_and("value"); | |
550 | write_const_value(con->get_value()); | |
551 | ||
552 | end_object(); | |
553 | } | |
554 | ||
555 | void t_json_generator::generate_enum(t_enum* tenum) { | |
556 | start_object(); | |
557 | ||
558 | write_key_and_string("name", tenum->get_name()); | |
559 | ||
560 | if (tenum->has_doc()) { | |
561 | write_key_and_string("doc", tenum->get_doc()); | |
562 | } | |
563 | ||
564 | if (tenum->annotations_.size() > 0) { | |
565 | write_key_and("annotations"); | |
566 | start_object(); | |
567 | for (auto & annotation : tenum->annotations_) { | |
568 | write_key_and_string(annotation.first, annotation.second); | |
569 | } | |
570 | end_object(); | |
571 | } | |
572 | ||
573 | write_key_and("members"); | |
574 | start_array(); | |
575 | vector<t_enum_value*> values = tenum->get_constants(); | |
576 | vector<t_enum_value*>::iterator val_iter; | |
577 | for (val_iter = values.begin(); val_iter != values.end(); ++val_iter) { | |
578 | write_comma_if_needed(); | |
579 | t_enum_value* val = (*val_iter); | |
580 | start_object(); | |
581 | write_key_and_string("name", val->get_name()); | |
582 | write_key_and_integer("value", val->get_value()); | |
583 | if (val->has_doc()) { | |
584 | write_key_and_string("doc", val->get_doc()); | |
585 | } | |
586 | end_object(); | |
587 | indicate_comma_needed(); | |
588 | } | |
589 | end_array(); | |
590 | ||
591 | end_object(); | |
592 | } | |
593 | ||
594 | void t_json_generator::generate_struct(t_struct* tstruct) { | |
595 | start_object(); | |
596 | ||
597 | write_key_and_string("name", tstruct->get_name()); | |
598 | ||
599 | if (tstruct->has_doc()) { | |
600 | write_key_and_string("doc", tstruct->get_doc()); | |
601 | } | |
602 | ||
603 | if (tstruct->annotations_.size() > 0) { | |
604 | write_key_and("annotations"); | |
605 | start_object(); | |
606 | for (auto & annotation : tstruct->annotations_) { | |
607 | write_key_and_string(annotation.first, annotation.second); | |
608 | } | |
609 | end_object(); | |
610 | } | |
611 | ||
612 | write_key_and_bool("isException", tstruct->is_xception()); | |
613 | ||
614 | write_key_and_bool("isUnion", tstruct->is_union()); | |
615 | ||
616 | write_key_and("fields"); | |
617 | start_array(); | |
618 | vector<t_field*> members = tstruct->get_members(); | |
619 | vector<t_field*>::iterator mem_iter; | |
620 | for (mem_iter = members.begin(); mem_iter != members.end(); mem_iter++) { | |
621 | write_comma_if_needed(); | |
622 | generate_field(*mem_iter); | |
623 | indicate_comma_needed(); | |
624 | } | |
625 | end_array(); | |
626 | ||
627 | end_object(); | |
628 | } | |
629 | ||
630 | void t_json_generator::generate_service(t_service* tservice) { | |
631 | start_object(); | |
632 | ||
633 | write_key_and_string("name", get_qualified_name(tservice)); | |
634 | ||
635 | if (tservice->get_extends()) { | |
636 | write_key_and_string("extends", get_qualified_name(tservice->get_extends())); | |
637 | } | |
638 | ||
639 | if (tservice->has_doc()) { | |
640 | write_key_and_string("doc", tservice->get_doc()); | |
641 | } | |
642 | ||
643 | if (tservice->annotations_.size() > 0) { | |
644 | write_key_and("annotations"); | |
645 | start_object(); | |
646 | for (auto & annotation : tservice->annotations_) { | |
647 | write_key_and_string(annotation.first, annotation.second); | |
648 | } | |
649 | end_object(); | |
650 | } | |
651 | ||
652 | write_key_and("functions"); | |
653 | start_array(); | |
654 | vector<t_function*> functions = tservice->get_functions(); | |
655 | vector<t_function*>::iterator fn_iter = functions.begin(); | |
656 | for (; fn_iter != functions.end(); fn_iter++) { | |
657 | write_comma_if_needed(); | |
658 | generate_function(*fn_iter); | |
659 | indicate_comma_needed(); | |
660 | } | |
661 | end_array(); | |
662 | ||
663 | end_object(); | |
664 | } | |
665 | ||
666 | void t_json_generator::generate_function(t_function* tfunc) { | |
667 | start_object(); | |
668 | ||
669 | write_key_and_string("name", tfunc->get_name()); | |
670 | ||
671 | write_key_and_string("returnTypeId", get_type_name(tfunc->get_returntype())); | |
672 | write_type_spec_object("returnType", tfunc->get_returntype()); | |
673 | ||
674 | write_key_and_bool("oneway", tfunc->is_oneway()); | |
675 | ||
676 | if (tfunc->has_doc()) { | |
677 | write_key_and_string("doc", tfunc->get_doc()); | |
678 | } | |
679 | ||
680 | if (tfunc->annotations_.size() > 0) { | |
681 | write_key_and("annotations"); | |
682 | start_object(); | |
683 | for (auto & annotation : tfunc->annotations_) { | |
684 | write_key_and_string(annotation.first, annotation.second); | |
685 | } | |
686 | end_object(); | |
687 | } | |
688 | ||
689 | write_key_and("arguments"); | |
690 | start_array(); | |
691 | vector<t_field*> members = tfunc->get_arglist()->get_members(); | |
692 | vector<t_field*>::iterator mem_iter = members.begin(); | |
693 | for (; mem_iter != members.end(); mem_iter++) { | |
694 | write_comma_if_needed(); | |
695 | generate_field(*mem_iter); | |
696 | indicate_comma_needed(); | |
697 | } | |
698 | end_array(); | |
699 | ||
700 | write_key_and("exceptions"); | |
701 | start_array(); | |
702 | vector<t_field*> excepts = tfunc->get_xceptions()->get_members(); | |
703 | vector<t_field*>::iterator ex_iter = excepts.begin(); | |
704 | for (; ex_iter != excepts.end(); ex_iter++) { | |
705 | write_comma_if_needed(); | |
706 | generate_field(*ex_iter); | |
707 | indicate_comma_needed(); | |
708 | } | |
709 | end_array(); | |
710 | ||
711 | end_object(); | |
712 | } | |
713 | ||
714 | void t_json_generator::generate_field(t_field* field) { | |
715 | start_object(); | |
716 | ||
717 | write_key_and_integer("key", field->get_key()); | |
718 | write_key_and_string("name", field->get_name()); | |
719 | write_key_and_string("typeId", get_type_name(field->get_type())); | |
720 | write_type_spec_object("type", field->get_type()); | |
721 | ||
722 | if (field->has_doc()) { | |
723 | write_key_and_string("doc", field->get_doc()); | |
724 | } | |
725 | ||
726 | if (field->annotations_.size() > 0) { | |
727 | write_key_and("annotations"); | |
728 | start_object(); | |
729 | for (auto & annotation : field->annotations_) { | |
730 | write_key_and_string(annotation.first, annotation.second); | |
731 | } | |
732 | end_object(); | |
733 | } | |
734 | ||
735 | write_key_and("required"); | |
736 | switch (field->get_req()) { | |
737 | case t_field::T_REQUIRED: | |
738 | write_string("required"); | |
739 | break; | |
740 | case t_field::T_OPT_IN_REQ_OUT: | |
741 | write_string("req_out"); | |
742 | break; | |
743 | default: | |
744 | write_string("optional"); | |
745 | break; | |
746 | } | |
747 | ||
748 | if (field->get_value()) { | |
749 | write_key_and("default"); | |
750 | write_const_value(field->get_value()); | |
751 | } | |
752 | ||
753 | end_object(); | |
754 | } | |
755 | ||
756 | string t_json_generator::get_type_name(t_type* ttype) { | |
757 | ttype = ttype->get_true_type(); | |
758 | if (ttype->is_list()) { | |
759 | return "list"; | |
760 | } | |
761 | if (ttype->is_set()) { | |
762 | return "set"; | |
763 | } | |
764 | if (ttype->is_map()) { | |
765 | return "map"; | |
766 | } | |
767 | if (ttype->is_enum()) { | |
768 | return "i32"; | |
769 | } | |
770 | if (ttype->is_struct()) { | |
771 | return ((t_struct*)ttype)->is_union() ? "union" : "struct"; | |
772 | } | |
773 | if (ttype->is_xception()) { | |
774 | return "exception"; | |
775 | } | |
776 | if (ttype->is_base_type()) { | |
777 | t_base_type* tbasetype = (t_base_type*)ttype; | |
778 | return tbasetype->is_binary() ? "binary" : t_base_type::t_base_name(tbasetype->get_base()); | |
779 | } | |
780 | ||
781 | return "(unknown)"; | |
782 | } | |
783 | ||
784 | string t_json_generator::get_qualified_name(t_type* ttype) { | |
785 | if (should_merge_includes_ || ttype->get_program() == program_) { | |
786 | return ttype->get_name(); | |
787 | } | |
788 | return ttype->get_program()->get_name() + "." + ttype->get_name(); | |
789 | } | |
790 | ||
791 | THRIFT_REGISTER_GENERATOR(json, | |
792 | "JSON", | |
793 | " merge: Generate output with included files merged\n") |