RootDatabaseCnv.cpp

Go to the documentation of this file.

//------------------------------------------------------------------------------
//
// Implementation of class :  RootDatabaseCnv
//
// Author :                   Markus Frank
//
//------------------------------------------------------------------------------
// Framework include files
#include "RootCnv/RootDatabaseCnv.h"
#include "RootCnv/RootDataConnection.h"

#include "GaudiKernel/IOpaqueAddress.h"
#include "GaudiKernel/IRegistry.h"
#include "GaudiKernel/NTuple.h"

#if 0
DECLARE_COMPONENT_WITH_ID(RootDatabaseCnv,
                          ConverterID(ROOT_StorageType,CLID_StatisticsFile) )
#endif

using namespace Gaudi;
using namespace std;

// Standard Constructor
RootDatabaseCnv::RootDatabaseCnv( long typ, const CLID& cl, ISvcLocator* svc, RootCnvSvc* mgr )
    : RootDirectoryCnv( typ, cl, svc, mgr )
{
}

// Create database object
StatusCode RootDatabaseCnv::createObj( IOpaqueAddress* pAddr, DataObject*& refpObj )
{
  StatusCode status = StatusCode::FAILURE;
  if ( pAddr ) {
    RootDataConnection* con    = nullptr;
    IRegistry* pReg            = pAddr->registry();
    const unsigned long* ipars = pAddr->ipar();
    const string* spars        = pAddr->par();
    char mode                  = char( ipars[1] );
    string fname               = spars[0];
    string oname               = pReg->name();
    bool recrea                = mode == 'R';
    bool create                = mode == 'N';
    bool update                = mode == 'U';
    bool read                  = mode == 'O';
    const CLID& clid           = objType();
    status                     = StatusCode::SUCCESS;
    string cntName             = containerName( pReg );
    if ( create ) {
      m_dbMgr->connectDatabase( fname, IDataConnection::CREATE, &con ).ignore();
      status = saveDescription( fname, cntName, "File containing statistics results.", "", clid );
      if ( status.isSuccess() ) {
        log() << MSG::INFO << "Opened NEW Database file:" << fname << " as " << oname << endmsg;
      }
    } else if ( update ) {
      m_dbMgr->connectDatabase( fname, IDataConnection::UPDATE, &con ).ignore();
      status = saveDescription( fname, cntName, "File containing statistics results.", "", clid );
      if ( status.isSuccess() ) {
        log() << MSG::INFO << "Connect to existing Database file:" << fname << " as " << oname << " for UPDATE"
              << endmsg;
      }
    } else if ( read ) {
      status = m_dbMgr->connectDatabase( fname, IDataConnection::READ, &con );
      if ( status.isSuccess() ) {
        log() << MSG::INFO << "Connect to existing Database file:" << fname << " as " << oname << " for READ" << endmsg;
      }
    } else if ( recrea ) {
      m_dbMgr->connectDatabase( fname, IDataConnection::RECREATE, &con ).ignore();
      status = saveDescription( fname, cntName, "File containing statistics results.", "", clid );
      if ( status.isSuccess() ) {
        log() << MSG::INFO << "Recreate Database file:" << fname << " as " << oname << endmsg;
      }
    } else {
      log() << MSG::ERROR << "Don't know what to do:" << fname << endmsg;
      status = StatusCode::FAILURE;
    }
    // Now create object
    if ( status.isSuccess() ) {
      NTuple::File* pFile = new NTuple::File( objType(), fname, oname );
      pFile->setOpen( false );
      refpObj = pFile;
    }
  }
  return status;
}