1 /*
2 * Copyright 2014 Google Inc. All rights reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "flatbuffers/idl.h"
18 #include "flatbuffers/util.h"
19
20 #include "monster_generated.h" // Already includes "flatbuffers/flatbuffers.h".
21
22 using namespace MyGame::Sample;
23
24 // This is an example of parsing text straight into a buffer and then
25 // generating flatbuffer (JSON) text from the buffer.
main(int,const char * [])26 int main(int /*argc*/, const char * /*argv*/ []) {
27 // load FlatBuffer schema (.fbs) and JSON from disk
28 std::string schemafile;
29 std::string jsonfile;
30 bool ok = flatbuffers::LoadFile("samples/monster.fbs", false, &schemafile) &&
31 flatbuffers::LoadFile("samples/monsterdata.json", false, &jsonfile);
32 if (!ok) {
33 printf("couldn't load files!\n");
34 return 1;
35 }
36
37 // parse schema first, so we can use it to parse the data after
38 flatbuffers::Parser parser;
39 const char *include_directories[] = { "samples", nullptr };
40 ok = parser.Parse(schemafile.c_str(), include_directories) &&
41 parser.Parse(jsonfile.c_str(), include_directories);
42 assert(ok);
43
44 // here, parser.builder_ contains a binary buffer that is the parsed data.
45
46 // to ensure it is correct, we now generate text back from the binary,
47 // and compare the two:
48 std::string jsongen;
49 if (!GenerateText(parser, parser.builder_.GetBufferPointer(), &jsongen)) {
50 printf("Couldn't serialize parsed data to JSON!\n");
51 return 1;
52 }
53
54 if (jsongen != jsonfile) {
55 printf("%s----------------\n%s", jsongen.c_str(), jsonfile.c_str());
56 }
57
58 printf("The FlatBuffer has been parsed from JSON successfully.\n");
59 }
60