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 #include "monster_generated.h" // Already includes "flatbuffers/flatbuffers.h".
20
21 using namespace MyGame::Sample;
22
23 // This is an example of parsing text straight into a buffer and then
24 // generating flatbuffer (JSON) text from the buffer.
main(int,const char * [])25 int main(int /*argc*/, const char * /*argv*/[]) {
26 // load FlatBuffer schema (.fbs) and JSON from disk
27 std::string schemafile;
28 std::string jsonfile;
29 bool ok = flatbuffers::LoadFile("samples/monster.fbs", false, &schemafile) &&
30 flatbuffers::LoadFile("samples/monsterdata.json", false, &jsonfile);
31 if (!ok) {
32 printf("couldn't load files!\n");
33 return 1;
34 }
35
36 // parse schema first, so we can use it to parse the data after
37 flatbuffers::Parser parser;
38 const char *include_directories[] = { "samples", nullptr };
39 ok = parser.Parse(schemafile.c_str(), include_directories) &&
40 parser.Parse(jsonfile.c_str(), include_directories);
41 assert(ok);
42
43 // here, parser.builder_ contains a binary buffer that is the parsed data.
44
45 // to ensure it is correct, we now generate text back from the binary,
46 // and compare the two:
47 std::string jsongen;
48 if (!GenerateText(parser, parser.builder_.GetBufferPointer(), &jsongen)) {
49 printf("Couldn't serialize parsed data to JSON!\n");
50 return 1;
51 }
52
53 if (jsongen != jsonfile) {
54 printf("%s----------------\n%s", jsongen.c_str(), jsonfile.c_str());
55 }
56
57 printf("The FlatBuffer has been parsed from JSON successfully.\n");
58 }
59