EventPrincipal.h

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#ifndef art_Framework_Principal_EventPrincipal_h
#define art_Framework_Principal_EventPrincipal_h
// vim: set sw=2:

//  EventPrincipal
//
//  Manages per-event data products.
//
//  This is not visible to modules, instead they use the Event class,
//  which is a proxy for this class.

#include "art/Framework/Principal/NoDelayedReader.h"
#include "art/Framework/Principal/Principal.h"
#include "art/Framework/Principal/fwd.h"
#include "art/Persistency/Common/GroupQueryResult.h"
#include "canvas/Persistency/Provenance/BranchMapper.h"
#include "canvas/Persistency/Provenance/BranchType.h"
#include "canvas/Persistency/Provenance/EventAuxiliary.h"
#include "canvas/Persistency/Provenance/History.h"
#include "cetlib/exempt_ptr.h"

#include <map>
#include <memory>
#include <vector>

namespace art {

  class EventID;

  class EventPrincipal final : public Principal {
  public:
    using Auxiliary = EventAuxiliary;
    static constexpr BranchType branch_type = Auxiliary::branch_type;

    EventPrincipal(
      EventAuxiliary const& aux,
      ProcessConfiguration const& pc,
      cet::exempt_ptr<ProductTable const> presentProducts,
      std::shared_ptr<History> history = std::make_shared<History>(),
      std::unique_ptr<BranchMapper>&& mapper = std::make_unique<BranchMapper>(),
      std::unique_ptr<DelayedReader>&& rtrv =
        std::make_unique<NoDelayedReader>(),
      bool lastInSubRun = false);

    SubRunPrincipal const& subRunPrincipal() const;

    cet::exempt_ptr<SubRunPrincipal const>
    subRunPrincipalExemptPtr() const
    {
      return subRunPrincipal_;
    }
    void
    setSubRunPrincipal(cet::exempt_ptr<SubRunPrincipal const> srp)
    {
      subRunPrincipal_ = srp;
    }

    EventID const&
    id() const
    {
      return aux().id();
    }
    Timestamp const&
    time() const
    {
      return aux().time();
    }
    bool
    isReal() const
    {
      return aux().isRealData();
    }

    EventAuxiliary::ExperimentType
    ExperimentType() const
    {
      return aux().experimentType();
    }

    EventAuxiliary const&
    aux() const
    {
      return aux_;
    }
    SubRunNumber_t
    subRun() const
    {
      return id().subRun();
    }
    RunNumber_t
    run() const
    {
      return id().run();
    }
    EventNumber_t
    event() const
    {
      return id().event();
    }

    EventSelectionIDVector const& eventSelectionIDs() const;

    History const&
    history() const
    {
      return *history_;
    }

    using Principal::getGroup;

    void put(std::unique_ptr<EDProduct>&& edp,
             BranchDescription const& pd,
             std::unique_ptr<ProductProvenance const>&& productProvenance);

    void fillGroup(BranchDescription const&) override;

    BranchType
    branchType() const override
    {
      return branch_type;
    }

    bool
    isLastInSubRun() const
    {
      return lastInSubRun_;
    }
    RangeSet
    seenRanges() const override
    {
      return RangeSet::invalid();
    }

  private:
    void throwIfExistingGroup(BranchDescription const& pd) const;

    ProcessHistoryID const&
    processHistoryID() const override
    {
      return history().processHistoryID();
    }

    void
    setProcessHistoryID(ProcessHistoryID const& phid) override
    {
      return history().setProcessHistoryID(phid);
    }

  private:
    EventAuxiliary aux_;

    cet::exempt_ptr<SubRunPrincipal const> subRunPrincipal_{nullptr};
    std::shared_ptr<History> history_;
    bool lastInSubRun_{false};
  };

} // namespace art

// Local Variables:
// mode: c++
// End:
#endif /* art_Framework_Principal_EventPrincipal_h */