53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#include "util/name_table.hpp"
|
|
#include "util/simple_logger.hpp"
|
|
|
|
#include <algorithm>
|
|
#include <limits>
|
|
#include <fstream>
|
|
|
|
#include <boost/filesystem/fstream.hpp>
|
|
|
|
namespace osrm
|
|
{
|
|
namespace util
|
|
{
|
|
|
|
NameTable::NameTable(const std::string &filename)
|
|
{
|
|
boost::filesystem::ifstream name_stream(filename, std::ios::binary);
|
|
|
|
name_stream >> m_name_table;
|
|
|
|
unsigned number_of_chars = 0;
|
|
name_stream.read(reinterpret_cast<char *>(&number_of_chars), sizeof(number_of_chars));
|
|
BOOST_ASSERT_MSG(0 != number_of_chars, "name file broken");
|
|
m_names_char_list.resize(number_of_chars + 1); //+1 gives sentinel element
|
|
name_stream.read(reinterpret_cast<char *>(&m_names_char_list[0]),
|
|
number_of_chars * sizeof(m_names_char_list[0]));
|
|
if (0 == m_names_char_list.size())
|
|
{
|
|
util::SimpleLogger().Write(logWARNING) << "list of street names is empty";
|
|
}
|
|
}
|
|
|
|
std::string NameTable::get_name_for_id(const unsigned name_id) const
|
|
{
|
|
if (std::numeric_limits<unsigned>::max() == name_id)
|
|
{
|
|
return "";
|
|
}
|
|
auto range = m_name_table.GetRange(name_id);
|
|
|
|
std::string result;
|
|
result.reserve(range.size());
|
|
if (range.begin() != range.end())
|
|
{
|
|
result.resize(range.back() - range.front() + 1);
|
|
std::copy(m_names_char_list.begin() + range.front(),
|
|
m_names_char_list.begin() + range.back() + 1, result.begin());
|
|
}
|
|
return result;
|
|
}
|
|
} // namespace util
|
|
} // namespace osrm
|