dune::AnaRootParserDataStruct::BranchCreator Class Reference

Little helper functor class to create or reset branches in a tree. More...

Public Member Functions
	BranchCreator (TTree *tree)
void	operator() (std::string name, void *address, std::string leaflist)
	Create a branch if it does not exist, and set its address. More...
void	operator() (std::string name, void *address, const std::stringstream &leaflist)
template<typename T >
void	operator() (std::string name, std::vector< T > &data, std::string leaflist)
template<typename T >
void	operator() (std::string name, std::vector< T > &data)

Public Attributes
TTree *	pTree
	the tree to be worked on More...

Detailed Description

Little helper functor class to create or reset branches in a tree.

Definition at line 1264 of file AnaRootParser_module.cc.

Constructor & Destructor Documentation

dune::AnaRootParserDataStruct::BranchCreator::BranchCreator ( TTree *  tree )

inline

Definition at line 1267 of file AnaRootParser_module.cc.

: pTree(tree) {}

Member Function Documentation

void dune::AnaRootParserDataStruct::BranchCreator::operator() ( std::string  name, void *  address, std::string  leaflist  )

inline

Create a branch if it does not exist, and set its address.

Definition at line 1272 of file AnaRootParser_module.cc.

            {

              if (!pTree) return;
              TBranch* pBranch = pTree->GetBranch(name.c_str());

              if (!pBranch) {
                pTree->Branch(name.c_str(), address, leaflist.c_str() /*, bufsize */);

                MF_LOG_DEBUG("AnaRootParserStructure")
                  << "Creating branch '" << name << " with leaf '" << leaflist << "'";

              }
              else if (pBranch->GetAddress() != address) {
                pBranch->SetAddress(address);
                MF_LOG_DEBUG("AnaRootParserStructure")
                  << "Reassigning address to branch '" << name << "'";
              }
              else {
                MF_LOG_DEBUG("AnaRootParserStructure")
                  << "Branch '" << name << "' is fine";
              }
            } // operator()

void dune::AnaRootParserDataStruct::BranchCreator::operator() ( std::string  name, void *  address, const std::stringstream &  leaflist  )

inline

Definition at line 1296 of file AnaRootParser_module.cc.

            { return this->operator() (name, address, leaflist.str() /*, int bufsize = 32000 */); }

template<typename T >

void dune::AnaRootParserDataStruct::BranchCreator::operator() ( std::string  name, std::vector< T > &  data, std::string  leaflist  )

inline

Definition at line 1300 of file AnaRootParser_module.cc.

            { return this->operator() (name, (void*) data.data(), leaflist /*, int bufsize = 32000 */); }

template<typename T >

void dune::AnaRootParserDataStruct::BranchCreator::operator() ( std::string  name, std::vector< T > &  data  )

inline

Definition at line 1304 of file AnaRootParser_module.cc.

            {
              // overload for a generic object expressed directly by reference
              // (as opposed to a generic object expressed by a pointer or
              // to a simple leaf sequence specification);
              // TTree::Branch(name, T* obj, Int_t bufsize, splitlevel) and
              // TTree::SetObject() are used.
              if (!pTree) return;
              TBranch* pBranch = pTree->GetBranch(name.c_str());
              if (!pBranch) {
                pTree->Branch(name.c_str(), &data);
                // ROOT needs a TClass definition for T in order to create a branch,
                // se we are sure that at this point the TClass exists
                MF_LOG_DEBUG("AnaRootParserStructure")
                  << "Creating object branch '" << name
                  << " with " << TClass::GetClass(typeid(T))->ClassName();
              }
              else if
                (*(reinterpret_cast<std::vector<T>**>(pBranch->GetAddress())) != &data)
                {
                  // when an object is provided directly, the address of the object
                  // is assigned in TBranchElement::fObject (via TObject::SetObject())
                  // and the address itself is set to the address of the fObject
                  // member. Here we check that the address of the object in fObject
                  // is the same as the address of our current data type
                  pBranch->SetObject(&data);
                  MF_LOG_DEBUG("AnaRootParserStructure")
                    << "Reassigning object to branch '" << name << "'";
                }
              else {
                MF_LOG_DEBUG("AnaRootParserStructure")
                  << "Branch '" << name << "' is fine";
              }
            } // operator()

Member Data Documentation

TTree* dune::AnaRootParserDataStruct::BranchCreator::pTree

the tree to be worked on

Definition at line 1266 of file AnaRootParser_module.cc.

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

• duneprototypes/duneprototypes/Protodune/dualphase/AnaRootParser_module.cc