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#pragma once
#include "descriptions/serdes.hpp"
#include "indexer/feature_decl.hpp"
#include "indexer/mwm_set.hpp"
#include <cstdint>
#include <map>
#include <memory>
#include <mutex>
#include <string>
#include <vector>
class DataSource;
namespace descriptions
{
// *NOTE* This class IS thread-safe.
class Loader
{
public:
explicit Loader(DataSource const & dataSource) : m_dataSource(dataSource) {}
bool GetDescription(FeatureID const & featureId, std::vector<int8_t> const & langPriority,
std::string & description);
private:
struct Entry
{
std::mutex m_mutex;
Deserializer m_deserializer;
};
using EntryPtr = std::shared_ptr<Entry>;
DataSource const & m_dataSource;
std::map<MwmSet::MwmId, EntryPtr> m_deserializers;
std::mutex m_mutex;
};
} // namespace descriptions
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