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37 lines
932 B
C++
37 lines
932 B
C++
#include "descriptions/loader.hpp"
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#include "indexer/data_source.hpp"
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#include "base/assert.hpp"
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#include "defines.hpp"
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namespace descriptions
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{
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std::string Loader::GetWikiDescription(FeatureID const & featureId, std::vector<int8_t> const & langPriority)
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{
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auto const handle = m_dataSource.GetMwmHandleById(featureId.m_mwmId);
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if (!handle.IsAlive())
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return {};
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auto const & value = *handle.GetValue();
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if (!value.m_cont.IsExist(DESCRIPTIONS_FILE_TAG))
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return {};
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EntryPtr entry;
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{
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std::lock_guard<std::mutex> lock(m_mutex);
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entry = m_deserializers.try_emplace(featureId.m_mwmId, std::make_shared<Entry>()).first->second;
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}
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ASSERT(entry, ());
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auto readerPtr = value.m_cont.GetReader(DESCRIPTIONS_FILE_TAG);
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std::lock_guard<std::mutex> lock(entry->m_mutex);
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return entry->m_deserializer.Deserialize(*readerPtr.GetPtr(), featureId.m_index, langPriority);
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}
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} // namespace descriptions
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