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#include "generator/restriction_collector.hpp"
#include "generator/gen_mwm_info.hpp"
#include "coding/file_reader.hpp"
#include "coding/reader.hpp"
#include "base/assert.hpp"
#include "base/logging.hpp"
#include "base/scope_guard.hpp"
#include "base/stl_helpers.hpp"
#include "base/string_utils.hpp"
#include "std/algorithm.hpp"
#include "std/fstream.hpp"
namespace
{
char const kNo[] = "No";
char const kOnly[] = "Only";
char const kDelim[] = ", \t\r\n";
bool ParseLineOfNumbers(strings::SimpleTokenizer & iter, vector<uint64_t> & numbers)
{
uint64_t number = 0;
for (; iter; ++iter)
{
if (!strings::to_uint64(*iter, number))
return false;
numbers.push_back(number);
}
return true;
}
} // namespace
namespace routing
{
RestrictionCollector::RestrictionCollector(string const & restrictionPath,
string const & osmIdsToFeatureIdPath)
{
MY_SCOPE_GUARD(clean, [this](){
m_osmIdToFeatureId.clear();
m_restrictions.clear();
});
if (!ParseOsmIdToFeatureIdMapping(osmIdsToFeatureIdPath))
{
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();
my::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 find_if(begin(m_restrictions), end(m_restrictions),
[](Restriction const & r) { return !r.IsValid(); }) == end(m_restrictions);
}
bool RestrictionCollector::ParseOsmIdToFeatureIdMapping(string const & osmIdsToFeatureIdPath)
{
gen::OsmID2FeatureID osmIdsToFeatureIds;
try
{
FileReader reader(osmIdsToFeatureIdPath);
ReaderSource<FileReader> src(reader);
osmIdsToFeatureIds.Read(src);
}
catch (FileReader::Exception const & e)
{
LOG(LWARNING, ("Exception while reading file:", osmIdsToFeatureIdPath, ". Msg:", e.Msg()));
return false;
}
osmIdsToFeatureIds.ForEach([this](gen::OsmID2FeatureID::ValueT const & p) {
AddFeatureId(p.second /* feature id */, p.first /* osm id */);
});
return true;
}
bool RestrictionCollector::ParseRestrictions(string const & path)
{
ifstream stream(path);
if (stream.fail())
return false;
string line;
while (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;
vector<uint64_t> osmIds;
if (!ParseLineOfNumbers(iter, osmIds))
{
LOG(LWARNING, ("Cannot parse osm ids from", path));
return false;
}
AddRestriction(type, osmIds);
}
return true;
}
bool RestrictionCollector::AddRestriction(Restriction::Type type, vector<uint64_t> const & osmIds)
{
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, uint64_t osmId)
{
// Note. One |featureId| could correspond to several osm ids.
// But for road feature |featureId| corresponds to exactly one osm id.
auto const result = m_osmIdToFeatureId.insert(make_pair(osmId, featureId));
if (result.second == false)
{
LOG(LERROR, ("Osm id", osmId, "is included in two feature ids: ", featureId,
m_osmIdToFeatureId.find(osmId)->second));
}
}
bool FromString(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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