columnar::TestUtils::ColumnReaderMetNames< Reader > Struct Template Reference

#include <ColumnReaderBranch.h>

Inheritance diagram for columnar::TestUtils::ColumnReaderMetNames< Reader >:

Collaboration diagram for columnar::TestUtils::ColumnReaderMetNames< Reader >:

Public Member Functions
	ColumnReaderMetNames (const std::string &val_branchName)
virtual bool	connect (Backend source, std::unordered_map< std::string, const std::vector< ColumnarOffsetType > * > &, std::unordered_map< std::string, ColumnInfo > &requestedColumns) override
virtual void	clearColumns () override
virtual void	getEntry (Long64_t entry) override
virtual void	setData (ColumnVectorData &colData) override
virtual BranchPerfData	getPerfData (float emptyTime) override
virtual void	collectColumnData () override
void	connectColumnIndices (const ColumnVectorHeader &header)
	lookup and store column indices from the header for all enabled output columns

Public Attributes
Reader< std::vector< std::string > >	branchReader
std::vector< ColumnarOffsetType >	offsets = {0}
std::vector< char >	columnData
std::vector< std::size_t >	columnHashData
Benchmark	benchmarkUnpack
Benchmark	benchmark
std::vector< OutputColumnInfo >	outputColumns

Detailed Description

template<template< typename > class Reader>
struct columnar::TestUtils::ColumnReaderMetNames< Reader >

Definition at line 1139 of file ColumnReaderBranch.h.

Constructor & Destructor Documentation

ColumnReaderMetNames()

template<template< typename > class Reader>

columnar::TestUtils::ColumnReaderMetNames< Reader >::ColumnReaderMetNames ( const std::string & val_branchName )

inline

Definition at line 1148 of file ColumnReaderBranch.h.

        : branchReader (val_branchName), benchmarkUnpack (branchReader.columnName()+"(unpack)"), benchmark (branchReader.columnName())
      {
        outputColumns.push_back ({.name = branchReader.columnName() + ".data"});
        outputColumns.push_back ({.name = branchReader.columnName() + ".offset", .isOffset = true});
        outputColumns.push_back ({.name = branchReader.columnName() + "Hash"});
      }

Member Function Documentation

clearColumns()

template<template< typename > class Reader>

virtual void columnar::TestUtils::ColumnReaderMetNames< Reader >::clearColumns ( )

inlineoverridevirtual

Implements columnar::TestUtils::ColumnReader.

Definition at line 1187 of file ColumnReaderBranch.h.

      {
        columnData.clear();
        offsets.clear();
        offsets.push_back (0);
        columnHashData.clear();
      }

collectColumnData()

template<template< typename > class Reader>

virtual void columnar::TestUtils::ColumnReaderMetNames< Reader >::collectColumnData ( )

inlineoverridevirtual

Implements columnar::TestUtils::ColumnReader.

Definition at line 1234 of file ColumnReaderBranch.h.

      {}

connect()

template<template< typename > class Reader>

virtual bool columnar::TestUtils::ColumnReaderMetNames< Reader >::connect ( Backend source, std::unordered_map< std::string, const std::vector< ColumnarOffsetType > * > & , std::unordered_map< std::string, ColumnInfo > & requestedColumns )

inlineoverridevirtual

Implements columnar::TestUtils::ColumnReader.

Definition at line 1156 of file ColumnReaderBranch.h.

      {
        auto iter = requestedColumns.find (outputColumns.at(0).name);
        if (iter == requestedColumns.end())
          return false;
        outputColumns.at(0).enabled = true;
 
        branchReader.connectTree(source);
 
        if (iter->second.offsetName != outputColumns.at(1).name)
          throw std::runtime_error ("offset name mismatch: " + iter->second.offsetName + " != " + outputColumns.at(1).name);
 
        requestedColumns.erase (iter);
 
        iter = requestedColumns.find (outputColumns.at(1).name);
        if (iter == requestedColumns.end())
        {
          return true;
        }
        outputColumns.at(1).enabled = true;
        requestedColumns.erase (iter);
 
        iter = requestedColumns.find (outputColumns.at(2).name);
        if (iter != requestedColumns.end())
        {
          outputColumns.at(2).enabled = true;
          requestedColumns.erase (iter);
        }
        return true;
      }

connectColumnIndices()

void columnar::TestUtils::ColumnReader::connectColumnIndices ( const ColumnVectorHeader & header )

inlineinherited

lookup and store column indices from the header for all enabled output columns

Definition at line 66 of file ColumnReader.h.

      {
        for (auto& col : outputColumns)
        {
          if (col.enabled)
            col.columnIndex = header.getColumnIndex (col.name);
        }
      }

getEntry()

template<template< typename > class Reader>

virtual void columnar::TestUtils::ColumnReaderMetNames< Reader >::getEntry ( Long64_t entry )

inlineoverridevirtual

Implements columnar::TestUtils::ColumnReader.

Definition at line 1195 of file ColumnReaderBranch.h.

      {
        benchmark.startTimer ();
        const auto& branchData = branchReader.getEntry (entry);
        benchmark.stopTimer ();
        benchmarkUnpack.startTimer ();
        for (auto& data : branchData)
        {
          columnData.insert (columnData.end(), data.begin(), data.end());
          offsets.push_back (columnData.size());
          columnHashData.push_back (std::hash<std::string> () (data));
        }
        benchmarkUnpack.stopTimer ();
      }

getPerfData()

template<template< typename > class Reader>

virtual BranchPerfData columnar::TestUtils::ColumnReaderMetNames< Reader >::getPerfData ( float emptyTime )

inlinenodiscardoverridevirtual

Implements columnar::TestUtils::ColumnReader.

Definition at line 1220 of file ColumnReaderBranch.h.

      {
        BranchPerfData result;
        result.name = branchReader.columnName();
        result.timeRead = benchmark.getEntryTime(emptyTime);
        result.timeUnpack = benchmarkUnpack.getEntryTime(emptyTime);
        benchmark.setSilence();
        benchmarkUnpack.setSilence();
        result.entrySize = branchReader.entrySize();
        result.uncompressedSize = branchReader.uncompressedSize();
        result.numBaskets = branchReader.numBaskets();
        return result;
      }

setData()

template<template< typename > class Reader>

virtual void columnar::TestUtils::ColumnReaderMetNames< Reader >::setData ( ColumnVectorData & colData )

inlineoverridevirtual

Implements columnar::TestUtils::ColumnReader.

Definition at line 1210 of file ColumnReaderBranch.h.

      {
        if (outputColumns.at(0).columnIndex != ColumnVectorHeader::nullIndex)
          colData.setColumn (outputColumns.at(0).columnIndex, columnData.size(), columnData.data());
        if (outputColumns.at(1).columnIndex != ColumnVectorHeader::nullIndex)
          colData.setColumn (outputColumns.at(1).columnIndex, offsets.size(), offsets.data());
        if (outputColumns.at(2).columnIndex != ColumnVectorHeader::nullIndex)
          colData.setColumn (outputColumns.at(2).columnIndex, columnHashData.size(), columnHashData.data());
      }

Member Data Documentation

benchmark

template<template< typename > class Reader>

Benchmark columnar::TestUtils::ColumnReaderMetNames< Reader >::benchmark

Definition at line 1146 of file ColumnReaderBranch.h.

benchmarkUnpack

template<template< typename > class Reader>

Benchmark columnar::TestUtils::ColumnReaderMetNames< Reader >::benchmarkUnpack

Definition at line 1145 of file ColumnReaderBranch.h.

branchReader

template<template< typename > class Reader>

Reader<std::vector<std::string> > columnar::TestUtils::ColumnReaderMetNames< Reader >::branchReader

Definition at line 1141 of file ColumnReaderBranch.h.

columnData

template<template< typename > class Reader>

std::vector<char> columnar::TestUtils::ColumnReaderMetNames< Reader >::columnData

Definition at line 1143 of file ColumnReaderBranch.h.

columnHashData

template<template< typename > class Reader>

std::vector<std::size_t> columnar::TestUtils::ColumnReaderMetNames< Reader >::columnHashData

Definition at line 1144 of file ColumnReaderBranch.h.

offsets

template<template< typename > class Reader>

std::vector<ColumnarOffsetType> columnar::TestUtils::ColumnReaderMetNames< Reader >::offsets = {0}

Definition at line 1142 of file ColumnReaderBranch.h.

{0};

outputColumns

std::vector<OutputColumnInfo> columnar::TestUtils::ColumnReader::outputColumns

inherited

Definition at line 59 of file ColumnReader.h.

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The documentation for this struct was generated from the following file:

• ColumnReaderBranch.h