columnar::TestUtils::BranchReader< T > Class Template Reference

Collaboration diagram for columnar::TestUtils::BranchReader< T >:

Public Member Functions
	BranchReader (const std::string &val_branchName)
	~BranchReader () noexcept
	BranchReader (const BranchReader &)=delete
BranchReader &	operator= (const BranchReader &)=delete
void	setIsStatic (bool isStatic)
const std::string &	branchName () const
std::string	columnName () const
std::string	containerName () const
void	connectTree (TTree *tree)
const T &	getEntry (Long64_t entry)
const T &	getCachedEntry () const
std::optional< float >	entrySize () const
std::optional< float >	uncompressedSize () const
std::optional< unsigned >	numBaskets ()

Private Attributes
std::string	m_branchName
TBranch *	m_branch = nullptr
bool	m_isStatic = std::is_pod_v<T>
T *	m_data {new T()}

Detailed Description

template<typename T>
class columnar::TestUtils::BranchReader< T >

Definition at line 163 of file ColumnarPhysliteTest.cxx.

Constructor & Destructor Documentation

BranchReader() [1/2]

template<typename T>

columnar::TestUtils::BranchReader< T >::BranchReader ( const std::string & val_branchName )

inline

Definition at line 171 of file ColumnarPhysliteTest.cxx.

        : m_branchName (val_branchName)
      {
        if (m_branchName.find ("Aux.") != std::string::npos)
          m_isStatic = true;
      }

~BranchReader()

template<typename T>

columnar::TestUtils::BranchReader< T >::~BranchReader ( )

inlinenoexcept

Definition at line 178 of file ColumnarPhysliteTest.cxx.

      {
        delete m_data;
      }

BranchReader() [2/2]

template<typename T>

columnar::TestUtils::BranchReader< T >::BranchReader ( const BranchReader< T > & )

delete

Member Function Documentation

branchName()

template<typename T>

const std::string & columnar::TestUtils::BranchReader< T >::branchName ( ) const

inlinenodiscard

Definition at line 191 of file ColumnarPhysliteTest.cxx.

      {
        return m_branchName;
      }

columnName()

template<typename T>

std::string columnar::TestUtils::BranchReader< T >::columnName ( ) const

inlinenodiscard

Definition at line 196 of file ColumnarPhysliteTest.cxx.

      {
        std::string columnName = m_branchName;
        if (auto index = columnName.find ("AuxDyn."); index != std::string::npos)
          columnName.replace (index, 6, "");
        else if (auto index = columnName.find ("Aux."); index != std::string::npos)
          columnName.replace (index, 3, "");
        else if (columnName.find (".") != std::string::npos)
          throw std::runtime_error ("branch name does not contain AuxDyn or Aux: " + m_branchName);
        return columnName;
      }

connectTree()

template<typename T>

void columnar::TestUtils::BranchReader< T >::connectTree ( TTree * tree )

inline

Definition at line 220 of file ColumnarPhysliteTest.cxx.

      {
        m_branch = tree->GetBranch (m_branchName.c_str());
        if (!m_branch)
          throw std::runtime_error ("failed to get branch: " + m_branchName);
        m_branch->SetMakeClass (1);
        if (m_isStatic)
          m_branch->SetAddress (m_data);
        else
          m_branch->SetAddress (&m_data);
      }

containerName()

template<typename T>

std::string columnar::TestUtils::BranchReader< T >::containerName ( ) const

inlinenodiscard

Definition at line 208 of file ColumnarPhysliteTest.cxx.

      {
        if (auto index = m_branchName.find ("AuxDyn."); index != std::string::npos)
          return m_branchName.substr (0, index);
        else if (auto index = m_branchName.find ("Aux."); index != std::string::npos)
          return m_branchName.substr (0, index);
        else if (m_branchName.find (".") == std::string::npos)
          return m_branchName;
        else
          throw std::runtime_error ("branch name does not contain AuxDyn or Aux: " + m_branchName);
      }

entrySize()

template<typename T>

std::optional< float > columnar::TestUtils::BranchReader< T >::entrySize ( ) const

inline

Definition at line 248 of file ColumnarPhysliteTest.cxx.

      {
        if (!m_branch)
          return std::nullopt;
        return static_cast<float>(m_branch->GetZipBytes()) / m_branch->GetEntries();
      }

getCachedEntry()

template<typename T>

const T & columnar::TestUtils::BranchReader< T >::getCachedEntry ( ) const

inline

Definition at line 243 of file ColumnarPhysliteTest.cxx.

      {
        return *m_data;
      }

getEntry()

template<typename T>

const T & columnar::TestUtils::BranchReader< T >::getEntry ( Long64_t entry )

inline

Definition at line 232 of file ColumnarPhysliteTest.cxx.

      {
        if (!m_branch)
          throw std::runtime_error ("branch not connected: " + m_branchName);
        if (m_branch->GetEntry (entry) <= 0)
          throw std::runtime_error ("failed to get entry " + std::to_string (entry) + " for branch: " + m_branchName);
        if (m_data == nullptr)
          throw std::runtime_error ("got nullptr reading data for branch: " + m_branchName);
        return *m_data;
      }

numBaskets()

template<typename T>

std::optional< unsigned > columnar::TestUtils::BranchReader< T >::numBaskets ( )

inline

Definition at line 264 of file ColumnarPhysliteTest.cxx.

      {
        if (!m_branch)
          return std::nullopt;
        return m_branch->GetListOfBaskets()->GetSize();
      }

operator=()

template<typename T>

BranchReader & columnar::TestUtils::BranchReader< T >::operator= ( const BranchReader< T > & )

delete

setIsStatic()

template<typename T>

void columnar::TestUtils::BranchReader< T >::setIsStatic ( bool isStatic )

inline

Definition at line 186 of file ColumnarPhysliteTest.cxx.

      {
        m_isStatic = isStatic;
      }

uncompressedSize()

template<typename T>

std::optional< float > columnar::TestUtils::BranchReader< T >::uncompressedSize ( ) const

inline

Definition at line 255 of file ColumnarPhysliteTest.cxx.

      {
        if (!m_branch)
          return std::nullopt;
        return static_cast<float>(m_branch->GetTotBytes()) / m_branch->GetEntries();
      }

Member Data Documentation

m_branch

template<typename T>

TBranch* columnar::TestUtils::BranchReader< T >::m_branch = nullptr

private

Definition at line 166 of file ColumnarPhysliteTest.cxx.

m_branchName

template<typename T>

std::string columnar::TestUtils::BranchReader< T >::m_branchName

private

Definition at line 165 of file ColumnarPhysliteTest.cxx.

m_data

template<typename T>

T* columnar::TestUtils::BranchReader< T >::m_data {new T()}

private

Definition at line 168 of file ColumnarPhysliteTest.cxx.

{new T()};

m_isStatic

template<typename T>

bool columnar::TestUtils::BranchReader< T >::m_isStatic = std::is_pod_v<T>

private

Definition at line 167 of file ColumnarPhysliteTest.cxx.

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

• ColumnarPhysliteTest.cxx