Gaudi Framework, version v20r2
	Generated: 18 Jul 2008

RNTupleCnv.cpp

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#define ROOTHISTCNV_RNTUPLECNV_CPP

// Include files
#include "NTupleInfo.h"
#include "RNTupleCnv.h"
#include "RootObjAddress.h"

#include "GaudiKernel/CnvFactory.h"
#include "GaudiKernel/DataObject.h"
#include "GaudiKernel/IOpaqueAddress.h"
#include "GaudiKernel/IDataProviderSvc.h"
#include "GaudiKernel/IDataManagerSvc.h"
#include "GaudiKernel/INTupleSvc.h"
#include "GaudiKernel/IRegistry.h"
#include "GaudiKernel/MsgStream.h"
#include "GaudiKernel/SmartIF.h"
#include "GaudiKernel/NTuple.h"

// Root
#include "TTree.h"

//-----------------------------------------------------------------------------
//
// Implementation of class :  RootHistCnv::RNTupleCnv
//
// Author :                   Charles Leggett
//
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
RootHistCnv::RNTupleCnv::RNTupleCnv( ISvcLocator* svc, const CLID& clid )
: RConverter(clid, svc), m_ntupleSvc(0)         {
}
//-----------------------------------------------------------------------------


//-----------------------------------------------------------------------------
RootHistCnv::RNTupleCnv::~RNTupleCnv()             {
}
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
StatusCode RootHistCnv::RNTupleCnv::initialize()   {
//-----------------------------------------------------------------------------
  StatusCode status = Converter::initialize();
  if ( status.isSuccess() )   {
    status = serviceLocator()->getService( "NTupleSvc", IID_INTupleSvc,
                                           *pp_cast<IInterface>(&m_ntupleSvc));
  }
  return status;
}


//-----------------------------------------------------------------------------
StatusCode RootHistCnv::RNTupleCnv::finalize()     {
//-----------------------------------------------------------------------------
  if ( m_ntupleSvc != 0 )     {
    //    m_ntupleSvc->release();
  }
  m_ntupleSvc = 0;
  return Converter::finalize();
}

//-----------------------------------------------------------------------------
StatusCode RootHistCnv::RNTupleCnv::updateObj(IOpaqueAddress* pAddress, 
                                              DataObject* pObject)   
//-----------------------------------------------------------------------------
{
  MsgStream log (msgSvc(), "RNTupleCnv");

  StatusCode status = StatusCode::FAILURE;

  RootObjAddress *rAddr = dynamic_cast<RootObjAddress*>(pAddress);

  if (rAddr == 0) {
    log << MSG::ERROR << "Could not dynamic cast to RootObjAddress" << endreq;
    return StatusCode::FAILURE;
  }

  TTree* rtree = (TTree*) rAddr->tObj();

  try   {
    unsigned long* info = (unsigned long*)pAddress->ipar();
    setDirectory(pAddress->par()[0]);
    status = readData(rtree, dynamic_cast<INTuple*>(pObject), info[1]++);
  }
  catch (...)   {
  }
  return status;
}

//-----------------------------------------------------------------------------
StatusCode RootHistCnv::RNTupleCnv::createObj(IOpaqueAddress* pAddress, 
                                              DataObject*& refpObject)   
//-----------------------------------------------------------------------------
{
  MsgStream log (msgSvc(), "RNTupleCnv");

  IRegistry* pReg = pAddress->registry();

//    log << MSG::WARNING << "adr: " << pAddress->par()[0] << " <> " 
//        << pAddress->par()[1] << " <> " << pAddress->ipar()[0] << " <> "
//        << pAddress->ipar()[1] << " <> " << hex << rAddr->tObj()
//        << dec << " <> " << pReg->identifier() << endreq;

  std::string ident = pReg->identifier();

  StatusCode status = readObject(pAddress, refpObject);  // Doesn't do anything
  if ( status.isSuccess() )   {
    RootObjAddress *rAddr = dynamic_cast<RootObjAddress*>( pAddress );
    if (rAddr == 0) {
      log << MSG::ERROR << "Could not cast to RootObjAddress" << endreq;
      return StatusCode::FAILURE;
    }
    INTuple* nt = 0;
    TTree* tobj = (TTree*) rAddr->tObj();
    status = load(tobj, nt);
    if (status.isSuccess()) {
      refpObject = dynamic_cast<DataObject*>(nt);
    } else {
      log << MSG::ERROR << "Problems loading ntuple id: " << pReg->identifier()
          << endreq;
    }
  }
  return status;
}

//-----------------------------------------------------------------------------
StatusCode RootHistCnv::RNTupleCnv::createRep(DataObject* pObject, 
                                              IOpaqueAddress*& pAddr)  
//-----------------------------------------------------------------------------
{
  GlobalDirectoryRestore restore;
  pAddr = 0;
  try   {
    IRegistry* pReg = pObject->registry();
    if ( 0 != pReg )    {
      pAddr = pReg->address();
      if ( 0 == pAddr )   {
        SmartIF<IDataManagerSvc> dataMgr(dataProvider());
        if ( dataMgr.isValid() )    {
          IRegistry* pParentReg = 0;
          StatusCode status = dataMgr->objectParent(pReg, pParentReg);
          if ( status.isSuccess() )  {
            IOpaqueAddress* pParAddr = pParentReg->address();
            if ( pParAddr )   {
              TDirectory* pParentDir = (TDirectory*)pParAddr->ipar()[0];
              if ( pParentDir )   {
                TTree* pTree = 0;
                std::string dsc = pReg->name().substr(1);
                gDirectory = pParentDir;
                status = book(dsc, dynamic_cast<INTuple*>(pObject), pTree);
                if ( !status.isSuccess() )   {
                  return status;
                }
                status = createAddress(pObject, gDirectory, pTree, pAddr);
                if ( !status.isSuccess() )   {
                  return status;
                }
                return writeData(pTree, dynamic_cast<INTuple*>(pObject));
              }
            }
          }
        }
      }
      else  {
        TDirectory* pDir  = (TDirectory*)pAddr->ipar()[0];
        RootObjAddress *rAddr = dynamic_cast<RootObjAddress*>( pAddr );
        if (rAddr == 0) {
          MsgStream log (msgSvc(), "RNTupleCnv");
          log << MSG::ERROR << "Could not cast to RootObjAddress" << endreq;
          return StatusCode::FAILURE;
        }
        TTree*      pTree = (TTree*) rAddr->tObj();
        gDirectory = pDir;
        return writeData(pTree, dynamic_cast<INTuple*>(pObject));
      }
    }
  }
  catch (...)   {
  }
  MsgStream log (msgSvc(), "RNTupleCnv");
  log << MSG::ERROR << "Failed to create persistent N-tuple!" << endmsg;
  return StatusCode::FAILURE;
}

//-----------------------------------------------------------------------------
StatusCode RootHistCnv::RNTupleCnv::updateRep(IOpaqueAddress* pAddr, 
                                              DataObject* pObj )
//-----------------------------------------------------------------------------
{
  MsgStream log (msgSvc(), "RNTupleCnv");
  if ( 0 != pAddr )    {
    GlobalDirectoryRestore restore;
    TDirectory* pDir = (TDirectory*)pAddr->ipar()[0];
    RootObjAddress *rAddr = dynamic_cast<RootObjAddress*>( pAddr );
    if (rAddr == 0) {
      log << MSG::ERROR << "Could not cast to RootObjAddress" << endreq;
      return StatusCode::FAILURE;
    }
    TTree* pTree     = (TTree*) rAddr->tObj();
    if ( 0 != pDir && 0 != pTree )  {
      gDirectory->cd(pDir->GetPath());
      pTree->Write("",TObject::kOverwrite);
      return StatusCode::SUCCESS;
    }
  }
  else {
    log << MSG::WARNING << "empty ntuple: " << pObj->registry()->identifier()
        << endreq;
    return ( createRep(pObj,pAddr) );
  }
  return StatusCode::FAILURE;
}



//-----------------------------------------------------------------------------
std::string RootHistCnv::RNTupleCnv::rootVarType(int type) {
//-----------------------------------------------------------------------------
  switch( type ) {
  case DataTypeInfo::SHORT:   return "/S";           // short
  case DataTypeInfo::INT:     return "/I";           // int
  case DataTypeInfo::LONG:    return "/I";           // long
  case DataTypeInfo::USHORT:  return "/s";           // ushort
  case DataTypeInfo::UINT:    return "/i";           // uint
  case DataTypeInfo::ULONG:   return "/i";           // ulong
  case DataTypeInfo::FLOAT:   return "/F";           // float
  case DataTypeInfo::DOUBLE:  return "/D";           // double
  default:                    return "";
  }
  return "";
}

//-----------------------------------------------------------------------------
bool RootHistCnv::parseName(std::string full, std::string &blk, std::string &var) {
//-----------------------------------------------------------------------------
  int sp;
  if ( (sp=full.find("/")) != -1 ) {
    blk = full.substr(0,sp);
    var = full.substr(sp+1,full.length());
    return true;
  } else {
    blk = "AUTO_BLK";
    var = full;
    return false;
  }

}

//-----------------------------------------------------------------------------

#define INSTANTIATE(TYP)  \
template INTupleItem* createNTupleItem<TYP>(std::string itemName, std::string blockName, std::string index_name, int indexRange, int arraySize, TYP minimum, TYP maximum, INTuple* tuple);

namespace RootHistCnv  {

  template<class TYP>
  INTupleItem* createNTupleItem (std::string itemName, std::string blockName,
                                 std::string indexName,
                                 int indexRange, int arraySize, 
                                 TYP min, TYP max, 
                                 INTuple* ntup) {

    std::string varName;
    if (blockName != "") {
      varName = blockName + "/" + itemName;
    } else {
      varName = itemName;
    }

    TYP null = 0;
    INTupleItem* col = 0;

    if (min == 0 && max == 0) {
      min = NTuple::Range<TYP>::min();
      max = NTuple::Range<TYP>::max();
    }

    
    if (indexName == "") {      

      if (arraySize == 1) {
        // simple items
        col = NTuple::_Item<TYP>::create(ntup, varName, 
                                         typeid(TYP), 
                                         min, max, null);

      } else {
        // Arrays of fixed size
        col = NTuple::_Array<TYP>::create(ntup, varName,
                                           typeid(TYP), 
                                          "", arraySize,
                                          min, max, null);
      }

    } else {

      if (arraySize == 1) {
        // Arrays of variable size
        col = NTuple::_Array<TYP>::create(ntup, varName, 
                                           typeid(TYP), 
                                          indexName, indexRange, 
                                          min, max, null);
      } else {
        // Matrices
        col = NTuple::_Matrix<TYP>::create(ntup, varName, 
                                           typeid(TYP), 
                                           indexName,
                                           indexRange, arraySize, 
                                           min, max, null);
      }

    }

    return col;

  }

  INSTANTIATE(float)
  INSTANTIATE(double)
  INSTANTIATE(bool)
  INSTANTIATE(char)
  INSTANTIATE(int)
  INSTANTIATE(short)
  INSTANTIATE(long)
  INSTANTIATE(unsigned char)
  INSTANTIATE(unsigned int)
  INSTANTIATE(unsigned short)
  INSTANTIATE(unsigned long)
};

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