blob: f3fe2ffe936b79cec2b80aeac75ade3ca50cc4d7 (
plain)
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
|
#pragma once
#include "coding/file_reader.hpp"
#include "base/geo_object_id.hpp"
#include "base/logging.hpp"
#include <string>
#include <unordered_set>
#include "3party/jansson/myjansson.hpp"
namespace promo
{
using Cities = std::unordered_set<base::GeoObjectId>;
inline Cities LoadCities(std::string const & filename)
{
if (filename.empty())
return {};
std::string src;
FileReader reader(filename);
reader.ReadAsString(src);
Cities result;
base::Json root(src.c_str());
auto const dataArray = json_object_get(root.get(), "data");
auto const size = json_array_size(dataArray);
result.reserve(size);
for (size_t i = 0; i < size; ++i)
{
int64_t id = 0;
auto const obj = json_array_get(dataArray, i);
FromJSONObject(obj, "osmid", id);
result.emplace(static_cast<uint64_t>(id));
}
return result;
}
} // namespace promo
|
