AthAlgorithmDHUpdate.cxx

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/*
 * Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration.
 */
// $Id$
 
 
#include "AthAlgorithmDHUpdate.h"
#include "AthenaKernel/BaseInfo.h"
 
 
namespace AthenaBaseComps {
 

AthAlgorithmDHUpdate::AthAlgorithmDHUpdate (DataObjIDColl& linkedObjs,
                                            std::unique_ptr<IDataHandleVisitor> chain)
  : m_linkedObjs (linkedObjs),
    m_chain (std::move (chain))
{
}
 

void AthAlgorithmDHUpdate::visit (const IDataHandleHolder* dhh)
{
  // Make a copy, as usually linkedObjs will be extraOutputDeps().
  DataObjIDColl ex = dhh->extraOutputDeps();
 
  // Process all output dependencies.
  for (const Gaudi::DataHandle* h : dhh->outputHandles()) {
    if (!h->objKey().empty())
      handle (h->fullKey().clid(), h->objKey());
  }
 
  for (const DataObjID& dobj : ex) {
    if (!dobj.key().empty())
      handle (dobj.clid(), dobj.key());
  }
 
  for (const DataObjID& dobj : dhh->outputDataObjs()) {
    if (!dobj.key().empty())
      handle (dobj.clid(), dobj.key());
  }
 
  // If we put anything in linkedObjs, also add the contents
  // of extraOutputDeps.
  if (!m_linkedObjs.empty()) {
    m_linkedObjs.insert (ex.begin(), ex.end());
  }
 
  // Call the next hook function, if any.
  if (m_chain) {
    m_chain->visit (dhh);
  }
}
 

void AthAlgorithmDHUpdate::handle (CLID clid, const std::string& key)
{
  const SG::BaseInfoBase* bib = SG::BaseInfoBase::find (clid);
  if (!bib) return;
  for (CLID clid2 : bib->get_bases()) {
    if (clid2 != clid) {
      m_linkedObjs.emplace (clid2, key);
    }
  }
  for (CLID copy_clid : bib->get_copy_conversions()) {
    if (copy_clid != clid) {
      m_linkedObjs.emplace (copy_clid, key);
    }
  }
}
 
 
} // namespace AthenaBaseComps