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#include "generator/restriction_collector.hpp"
#include "generator/routing_helpers.hpp"
#include "base/assert.hpp"
#include "base/geo_object_id.hpp"
#include "base/logging.hpp"
#include "base/scope_guard.hpp"
#include "base/stl_helpers.hpp"
#include "base/string_utils.hpp"
#include <algorithm>
#include <fstream>
namespace
{
char const kNo[] = "No";
char const kOnly[] = "Only";
char const kDelim[] = ", \t\r\n";
bool ParseLineOfWayIds(strings::SimpleTokenizer & iter, std::vector<base::GeoObjectId> & numbers)
{
uint64_t number = 0;
for (; iter; ++iter)
{
if (!strings::to_uint64(*iter, number))
return false;
numbers.push_back(base::MakeOsmWay(number));
}
return true;
}
} // namespace
namespace routing
{
RestrictionCollector::RestrictionCollector(std::string const & restrictionPath,
std::string const & osmIdsToFeatureIdPath)
{
SCOPE_GUARD(clean, [this]() {
m_osmIdToFeatureId.clear();
m_restrictions.clear();
});
if (!ParseRoadsOsmIdToFeatureIdMapping(osmIdsToFeatureIdPath, m_osmIdToFeatureId))
{
LOG(LWARNING, ("An error happened while parsing feature id to osm ids mapping from file:",
osmIdsToFeatureIdPath));
return;
}
if (!ParseRestrictions(restrictionPath))
{
LOG(LWARNING, ("An error happened while parsing restrictions from file:", restrictionPath));
return;
}
clean.release();
base::SortUnique(m_restrictions);
if (!IsValid())
LOG(LERROR, ("Some restrictions are not valid."));
LOG(LDEBUG, ("Number of loaded restrictions:", m_restrictions.size()));
}
bool RestrictionCollector::IsValid() const
{
return std::find_if(begin(m_restrictions), end(m_restrictions),
[](Restriction const & r) { return !r.IsValid(); }) == end(m_restrictions);
}
bool RestrictionCollector::ParseRestrictions(std::string const & path)
{
std::ifstream stream(path);
if (stream.fail())
return false;
std::string line;
while (std::getline(stream, line))
{
strings::SimpleTokenizer iter(line, kDelim);
if (!iter) // the line is empty
return false;
Restriction::Type type;
if (!FromString(*iter, type))
{
LOG(LWARNING, ("Cannot parse a restriction type. Line:", line));
return false;
}
++iter;
std::vector<base::GeoObjectId> osmIds;
if (!ParseLineOfWayIds(iter, osmIds))
{
LOG(LWARNING, ("Cannot parse osm ids from", path));
return false;
}
AddRestriction(type, osmIds);
}
return true;
}
bool RestrictionCollector::AddRestriction(Restriction::Type type,
std::vector<base::GeoObjectId> const & osmIds)
{
std::vector<uint32_t> featureIds(osmIds.size());
for (size_t i = 0; i < osmIds.size(); ++i)
{
auto const result = m_osmIdToFeatureId.find(osmIds[i]);
if (result == m_osmIdToFeatureId.cend())
{
// It could happend near mwm border when one of a restriction lines is not included in mwm
// but the restriction is included.
return false;
}
// Only one feature id is found for |osmIds[i]|.
featureIds[i] = result->second;
}
m_restrictions.emplace_back(type, featureIds);
return true;
}
void RestrictionCollector::AddFeatureId(uint32_t featureId, base::GeoObjectId osmId)
{
::routing::AddFeatureId(osmId, featureId, m_osmIdToFeatureId);
}
bool FromString(std::string str, Restriction::Type & type)
{
if (str == kNo)
{
type = Restriction::Type::No;
return true;
}
if (str == kOnly)
{
type = Restriction::Type::Only;
return true;
}
return false;
}
} // namespace routing
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