D3PD::RootD3PDSvc Class Reference

Service to create a root-based D3PD. More...

#include <RootD3PDSvc.h>

Inheritance diagram for D3PD::RootD3PDSvc:

Collaboration diagram for D3PD::RootD3PDSvc:

Public Member Functions
	RootD3PDSvc (const std::string &name, ISvcLocator *svcloc)
	Constructor.
virtual StatusCode	initialize () override
	Standard Gaudi initialize method.
virtual StatusCode	finalize () override
	Standard Gaudi finalize method.
virtual StatusCode	stop () override
	Standard Gaudi stop method.

Detailed Description

Service to create a root-based D3PD.

Definition at line 37 of file RootD3PDSvc.h.

Constructor & Destructor Documentation

RootD3PDSvc()

D3PD::RootD3PDSvc::RootD3PDSvc	(	const std::string &	name,
		ISvcLocator *	svcloc )

Constructor.

Parameters

name	Service name.
svcloc	Service locator.

Definition at line 32 of file RootD3PDSvc.cxx.

  : base_class (name, svcloc),
    m_histSvc ("THistSvc", name)
{
  // See comments on cleanup().
  std::atexit (cleanup);
 
  declareProperty ("HistSvc",        m_histSvc);
  declareProperty ("DoBranchRef",    m_doBranchRef = true);
  declareProperty ("MasterTree",     m_masterTree = "CollectionTree");
  declareProperty ("IndexMajor",     m_indexMajor = "RunNumber");
  declareProperty ("IndexMinor",     m_indexMinor = "EventNumber");
  declareProperty ("BasketSize",     m_basketSize = 32768);
  declareProperty ("EntryOffsetLen", m_entryOffsetLen = 512);
  declareProperty ("AutoFlush",      m_autoFlush = -1,
                   "Value to set for ROOT's AutoFlush parameter. "
                   "(Tells how often the tree baskets will be flushed.) "
                   "0 disables flushing. "
                   "-1 (default) makes no changes to what THistSvc did. "
                   "Any other negative number gives the number of bytes "
                   "after which to flush. "
                   "A positive number gives the number of entries after which "
                   "to flush.");
  declareProperty ("AllowedNames",   m_allowedNames,
                   "Variable names allowed in the output D3PDs. An empty list "
                   "means that all variable names are allowed. Regular expressions "
                   "are allowed.");
  declareProperty ("VetoedNames",    m_vetoedNames,
                   "Variable names that are not allowed to end up in the "
                   "created D3PDs. Regular expressions are allowed.");
}

Member Function Documentation

finalize()

StatusCode D3PD::RootD3PDSvc::finalize ( )

overridevirtual

Standard Gaudi finalize method.

Definition at line 106 of file RootD3PDSvc.cxx.

{
  return StatusCode::SUCCESS;
}

initialize()

StatusCode D3PD::RootD3PDSvc::initialize ( )

overridevirtual

Standard Gaudi initialize method.

Definition at line 95 of file RootD3PDSvc.cxx.

{
  CHECK( AthService::initialize() );
  CHECK( m_histSvc.retrieve() );
  return StatusCode::SUCCESS;
}

stop()

StatusCode D3PD::RootD3PDSvc::stop ( )

overridevirtual

Standard Gaudi stop method.

Definition at line 115 of file RootD3PDSvc.cxx.

{
  // Run through all the trees we've made.
  for (size_t i = 0; i < m_d3pds.size(); i++) {
    RootD3PD* d3pd = m_d3pds[i].get();
 
    // Make an index if requested.
    if (!m_indexMajor.empty())
      d3pd->tree()->BuildIndex (m_indexMajor.c_str(), m_indexMinor.c_str());
 
    // Was there a master tree specified?
    if (!d3pd->master().empty()) {
      // Yes --- try to find it
      TDirectory* dir = d3pd->tree()->GetDirectory();
      TTree* master =
        dynamic_cast<TTree*> (dir->Get (d3pd->master().c_str()));
      if (!master && d3pd->tree()->GetEntries() > 0)
        CHECK( m_histSvc->getTree (d3pd->master(), master) );
      if (master) {
        // Make an index for the master if needed.
        if (!master->GetTreeIndex()) {
          // AANTupleStream will leave branch addresses in the master
          // tree pointing at dead objects.
          master->ResetBranchAddresses();
 
          master->BuildIndex (m_indexMajor.c_str(), m_indexMinor.c_str());
        }
 
        // Make this tree a friend of the master.
        master->AddFriend (d3pd->tree());
      }
    }
 
    {
      TDirectory::TContext ctx (gDirectory, d3pd->tree()->GetDirectory());
      d3pd->tree()->Write();
    }
  }
 
  // Get rid of the RootD3PD wrappers.
  // (Doesn't delete the root trees themselves.)
  m_d3pds.clear();
 
  return StatusCode::SUCCESS;
}

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

• RootD3PDSvc.h
• RootD3PDSvc.cxx