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#include "generator/feature_generator.hpp"
#include "generator/feature_builder.hpp"
#include "generator/generate_info.hpp"
#include "generator/intermediate_data.hpp"
#include "generator/intermediate_elements.hpp"
#include "indexer/cell_id.hpp"
#include "indexer/data_header.hpp"
#include "geometry/mercator.hpp"
#include "coding/varint.hpp"
#include "base/assert.hpp"
#include "base/logging.hpp"
#include "base/stl_helpers.hpp"
#include <functional>
#include <unordered_map>
#include <utility>
#include "std/target_os.hpp"
///////////////////////////////////////////////////////////////////////////////////////////////////
// FeaturesCollector implementation
///////////////////////////////////////////////////////////////////////////////////////////////////
namespace feature
{
FeaturesCollector::FeaturesCollector(std::string const & fName)
: m_datFile(fName), m_writeBuffer(kBufferSize) {}
FeaturesCollector::~FeaturesCollector()
{
FlushBuffer();
}
template <typename ValueT, size_t ValueSizeT = sizeof(ValueT) + 1>
std::pair<char[ValueSizeT], uint8_t> PackValue(ValueT v)
{
static_assert(std::is_integral<ValueT>::value, "Non integral value");
static_assert(std::is_unsigned<ValueT>::value, "Non unsigned value");
std::pair<char[ValueSizeT], uint8_t> res;
res.second = 0;
while (v > 127)
{
res.first[res.second++] = static_cast<uint8_t>((v & 127) | 128);
v >>= 7;
}
res.first[res.second++] = static_cast<uint8_t>(v);
return res;
}
void FeaturesCollector::FlushBuffer()
{
m_datFile.Write(m_writeBuffer.data(), m_writePosition);
m_writePosition = 0;
}
void FeaturesCollector::Flush()
{
FlushBuffer();
m_datFile.Flush();
}
void FeaturesCollector::Write(char const * src, size_t size)
{
do
{
if (m_writePosition == kBufferSize)
FlushBuffer();
size_t const part_size = std::min(size, kBufferSize - m_writePosition);
memcpy(&m_writeBuffer[m_writePosition], src, part_size);
m_writePosition += part_size;
size -= part_size;
src += part_size;
} while (size > 0);
}
uint32_t FeaturesCollector::WriteFeatureBase(std::vector<char> const & bytes, FeatureBuilder const & fb)
{
size_t const sz = bytes.size();
CHECK(sz != 0, ("Empty feature not allowed here!"));
auto const & packedSize = PackValue(sz);
Write(packedSize.first, packedSize.second);
Write(&bytes[0], sz);
m_bounds.Add(fb.GetLimitRect());
return m_featureID++;
}
uint32_t FeaturesCollector::Collect(FeatureBuilder const & fb)
{
FeatureBuilder::Buffer bytes;
fb.SerializeForIntermediate(bytes);
uint32_t const featureId = WriteFeatureBase(bytes, fb);
CHECK_LESS(0, m_featureID, ());
return featureId;
}
FeaturesAndRawGeometryCollector::FeaturesAndRawGeometryCollector(std::string const & featuresFileName,
std::string const & rawGeometryFileName)
: FeaturesCollector(featuresFileName), m_rawGeometryFileStream(rawGeometryFileName) {}
FeaturesAndRawGeometryCollector::~FeaturesAndRawGeometryCollector()
{
uint64_t terminator = 0;
m_rawGeometryFileStream.Write(&terminator, sizeof(terminator));
LOG(LINFO, ("Write", m_rawGeometryCounter, "geometries into", m_rawGeometryFileStream.GetName()));
}
uint32_t FeaturesAndRawGeometryCollector::Collect(FeatureBuilder const & fb)
{
uint32_t const featureId = FeaturesCollector::Collect(fb);
FeatureBuilder::Geometry const & geom = fb.GetGeometry();
if (geom.empty())
return featureId;
++m_rawGeometryCounter;
uint64_t numGeometries = geom.size();
m_rawGeometryFileStream.Write(&numGeometries, sizeof(numGeometries));
for (FeatureBuilder::PointSeq const & points : geom)
{
uint64_t numPoints = points.size();
m_rawGeometryFileStream.Write(&numPoints, sizeof(numPoints));
m_rawGeometryFileStream.Write(points.data(),
sizeof(FeatureBuilder::PointSeq::value_type) * points.size());
}
return featureId;
}
uint32_t CheckedFilePosCast(FileWriter const & f)
{
uint64_t pos = f.Pos();
CHECK_LESS_OR_EQUAL(pos, static_cast<uint64_t>(std::numeric_limits<uint32_t>::max()),
("Feature offset is out of 32bit boundary!"));
return static_cast<uint32_t>(pos);
}
}
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