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#pragma once
#include "generator/generate_info.hpp"
#include "generator/osm_element.hpp"
#include "std/function.hpp"
#include "std/iostream.hpp"
#include "std/string.hpp"
#include "std/sstream.hpp"
#include "std/unique_ptr.hpp"
#include "std/vector.hpp"
class SourceReader
{
struct Deleter
{
bool m_needDelete;
Deleter(bool needDelete = true) : m_needDelete(needDelete) {}
void operator()(istream * s) const
{
if (m_needDelete)
delete s;
}
};
unique_ptr<istream, Deleter> m_file;
public:
SourceReader();
explicit SourceReader(string const & filename);
explicit SourceReader(istringstream & stream);
uint64_t Read(char * buffer, uint64_t bufferSize);
};
class FeatureBuilder1;
// Emitter is used in OsmElemen to FeatureBuilder translation process.
class EmitterBase
{
public:
virtual ~EmitterBase() = default;
/// This method is used by OsmTranslator to pass |fb| to Emitter for further processing.
virtual void operator()(FeatureBuilder1 & fb) = 0;
/// Finish is used in GenerateFeatureImpl to make whatever work is needed after
/// all OmsElements are processed.
virtual bool Finish() { return true; }
/// Sets buckets (mwm names).
// TODO(syershov): Make this topic clear.
virtual void GetNames(vector<string> & names) const = 0;
};
unique_ptr<EmitterBase> MakeMainFeatureEmitter(feature::GenerateInfo const & info);
using EmitterFactory = function<unique_ptr<EmitterBase>(feature::GenerateInfo const &)>;
bool GenerateFeatures(feature::GenerateInfo & info,
EmitterFactory factory = MakeMainFeatureEmitter);
bool GenerateIntermediateData(feature::GenerateInfo & info);
void ProcessOsmElementsFromO5M(SourceReader & stream, function<void(OsmElement *)> processor);
void ProcessOsmElementsFromXML(SourceReader & stream, function<void(OsmElement *)> processor);
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