CollectionGetterToolImpl.cxx

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// $Id$
#include "D3PDMakerUtils/CollectionGetterToolImpl.h"
#include "D3PDMakerInterfaces/ICollectionGetterRegistryTool.h"
#include "AthenaKernel/errorcheck.h"
 
 
namespace D3PD {
 
 
CollectionGetterToolImpl::CollectionGetterToolImpl (const std::string& type,
                                                    const std::string& name,
                                                    const IInterface* parent)
  : base_class (type, name, parent)
{
  declareProperty ("Label", m_label,
                   "Label to assign to this getter, to be able to reference "
                   "it from an association tool.  Leave blank if no label "
                   "is needed.");
  declareProperty ("CollectionGetterRegistry", m_registry,
                   "Collection getter registry tool");
}
 
 
StatusCode CollectionGetterToolImpl::initialize()
{
  // If a label was provided, add ourselves to the registry.
  if (!m_label.empty()) {
    CHECK( m_registry.retrieve() );
    CHECK( m_registry->add (m_label, this) );
  }
  else {
    m_registry.disable();
  }
  return ObjGetterToolImpl::initialize();
}
 
 
const void*
CollectionGetterToolImpl::nextTypeinfo (const std::type_info& ti)
{
  // Configure the converter.
  if (!this->m_converter.isValid() ||
      this->m_converter.dstTypeinfo() != ti)
  {
    if (this->configureElementTypeinfo(ti).isFailure())
      return 0;
  }
 
  // Get the next object.  If the conversion fails, loop until we get
  // a good one.
  while (true) {
    const void* p = this->nextUntyped();
    if (!p) return 0;
    const void* pconv = this->m_converter.convertUntyped (p);
    if (pconv) return pconv;
    this->releaseElementUntyped (p);
    REPORT_MESSAGE (MSG::WARNING)
      << "Pointer conversion from " << m_converter.srcName() << " to "
      << m_converter.dstName() << "failed.";
  }
}
 
 
void
CollectionGetterToolImpl::releaseElementTypeinfo (const void* p,
                                                  const std::type_info& ti)
{
  if (!p)
    return;
 
  // Configure the converter if needed.
  if (!this->m_backConverter.isValid() ||
      this->m_backConverter.srcTypeinfo() != ti)
  {
    if (this->m_backConverter.init (ti, this->typeinfo()).isFailure()) {
      REPORT_MESSAGE (MSG::WARNING)
        << "Can't configure pointer conversion from "
        << System::typeinfoName (ti) << " to "
        << System::typeinfoName (this->typeinfo());
      return;
    }
  }
 
  // Convert to the desired type.
  p = this->m_backConverter.convertUntyped (p);
 
  // Release.
  if (p)
    this->releaseElementUntyped (p);
  else {
    REPORT_MESSAGE (MSG::WARNING)
      << "Pointer conversion from " << m_backConverter.srcName() << " to "
      << m_backConverter.dstName() << "failed.";
  }
}
 
 
StatusCode
CollectionGetterToolImpl::configureElementTypeinfo
   (const std::type_info& ti)
{
  return this->m_converter.init(this->elementTypeinfo(), ti);
}
 
 
} // namespace D3PD