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Fr4nz D13trich 2025-11-22 13:58:55 +01:00
parent 4af19165ec
commit 68073add76
12458 changed files with 12350765 additions and 2 deletions
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64
libs/indexer/features_vector.cpp Normal file
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#include "features_vector.hpp"
#include "dat_section_header.hpp"
#include "features_offsets_table.hpp"
#include "platform/constants.hpp"
FeaturesVector::FeaturesVector(FilesContainerR const & cont, feature::DataHeader const & header,
feature::FeaturesOffsetsTable const * ftTable,
feature::FeaturesOffsetsTable const * relTable,
indexer::MetadataDeserializer * metaDeserializer)
: m_loadInfo(cont, header, relTable, metaDeserializer)
, m_table(ftTable)
{
InitRecordsReader();
}
void FeaturesVector::InitRecordsReader()
{
FilesContainerR::TReader reader = m_loadInfo.GetDataReader();
ReaderSource src(reader);
feature::DatSectionHeader header;
header.Read(src);
m_loadInfo.m_version = header.m_version;
m_recordReader = std::make_unique<RecordReader>(reader.SubReader(header.m_featuresOffset, header.m_featuresSize));
}
std::unique_ptr<FeatureType> FeaturesVector::GetByIndex(uint32_t index) const
{
auto const ftOffset = m_table ? m_table->GetFeatureOffset(index) : index;
return std::make_unique<FeatureType>(&m_loadInfo, m_recordReader->ReadRecord(ftOffset));
}
size_t FeaturesVector::GetNumFeatures() const
{
return m_table ? m_table->size() : 0;
}
FeaturesVectorTest::FeaturesVectorTest(std::string const & filePath)
: FeaturesVectorTest((FilesContainerR(filePath, READER_CHUNK_LOG_SIZE, READER_CHUNK_LOG_COUNT)))
{}
FeaturesVectorTest::FeaturesVectorTest(FilesContainerR const & cont)
: m_cont(cont)
, m_header(m_cont)
, m_vector(m_cont, m_header, nullptr, nullptr, nullptr)
{
m_vector.m_table = feature::FeaturesOffsetsTable::Load(m_cont, FEATURE_OFFSETS_FILE_TAG).release();
if (m_cont.IsExist(RELATION_OFFSETS_FILE_TAG))
m_vector.m_loadInfo.m_relTable = feature::FeaturesOffsetsTable::Load(m_cont, RELATION_OFFSETS_FILE_TAG).release();
if (m_cont.IsExist(METADATA_FILE_TAG))
m_vector.m_loadInfo.m_metaDeserializer = indexer::MetadataDeserializer::Load(m_cont).release();
}
FeaturesVectorTest::~FeaturesVectorTest()
{
delete m_vector.m_table;
delete m_vector.m_loadInfo.m_metaDeserializer;
delete m_vector.m_loadInfo.m_relTable;
}