makeParallelDataFrom.h

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#ifndef LARDATA_RECOBASEPROXY_PROXYBASE_MAKEPARALLELDATAFROM_H
#define LARDATA_RECOBASEPROXY_PROXYBASE_MAKEPARALLELDATAFROM_H

// LArSoft libraries
#include "larcorealg/CoreUtils/ContainerMeta.h" // util::collection_value_t, ...
#include "lardata/RecoBaseProxy/ProxyBase/ParallelData.h"

// framework libraries
#include "canvas/Utilities/InputTag.h"

namespace proxy {

  // -- BEGIN Parallel data infrastructure -------------------------------------

  template <typename AuxColl, typename Aux = util::collection_value_t<AuxColl>, typename Tag = Aux>
  auto makeParallelDataFrom(AuxColl const& data)
  {
    return proxy::makeParallelData<AuxColl, Aux, Tag>(data);
  }

  template <typename AuxColl, typename Aux, typename Tag, typename Event>
  auto makeParallelDataFrom(Event const& event, art::InputTag const& tag);

  template <typename AuxColl, typename Aux, typename Event>
  auto makeParallelDataFrom(Event const& event, art::InputTag const& tag)
  {
    return makeParallelDataFrom<AuxColl, Aux, Aux, Event>(event, tag);
  }

  template <typename AuxColl, typename Event>
  auto makeParallelDataFrom(Event const& event, art::InputTag const& tag)
  {
    return makeParallelDataFrom<AuxColl, util::collection_value_t<AuxColl>, Event>(event, tag);
  }

  // -- END Parallel data infrastructure ---------------------------------------

} // namespace proxy

//------------------------------------------------------------------------------
//--- template implementation
//------------------------------------------------------------------------------
namespace proxy {

  //----------------------------------------------------------------------------
  //--- makeParallelDataFrom() implementations
  //----------------------------------------------------------------------------
  template <typename AuxColl, typename Aux, typename Tag, typename Event>
  auto makeParallelDataFrom(Event const& event, art::InputTag const& tag)
  {
    return makeParallelDataFrom<AuxColl, Aux, Tag>(*(event.template getValidHandle<AuxColl>(tag)));
  } // makeParallelDataFrom()

} // namespace proxy

#endif // LARDATA_RECOBASEPROXY_PROXYBASE_MAKEPARALLELDATAFROM_H