LCIOEventHandler.h

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//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================
#ifndef DDEVE_LCIO_LCIOEVENTHANDLER_H
#define DDEVE_LCIO_LCIOEVENTHANDLER_H
 
// Framework include files
#include "DDEve/EventHandler.h"
#include "lcio.h"
 
// C/C++ include files
#include <map>
#include <string>
 
// Forward declarations
 
/*
 *   dd4hep namespace declaration
 */
namespace dd4hep {
 
 
  class LCIOEventHandler : public EventHandler  {
  public:
    typedef std::map<std::string,lcio::LCCollection*> Branches;
    typedef const void* (*HitAccessor_t)(const lcio::LCObject*, DDEveHit*);
  protected:
    lcio::LCReader* m_lcReader;
    lcio::LCEvent*  m_event;
    std::string     m_fileName;
    Branches        m_branches;
    TypedEventCollections m_data;
 
  public:
    LCIOEventHandler();
    virtual ~LCIOEventHandler();
 
    virtual const TypedEventCollections& data()  const   { return m_data;  }
    std::string datasourceName() const { return hasFile() ? m_fileName : std::string("UNKNOWN"); }
    virtual long numEvents() const;
    virtual CollectionType collectionType(const std::string& collection) const;
    virtual size_t collectionLoop(const std::string& collection, DDEveHitActor& actor);
    virtual size_t collectionLoop(const std::string& collection, DDEveParticleActor& actor);
    virtual bool Open(const std::string& type, const std::string& file_name);
    virtual bool NextEvent();
    virtual bool PreviousEvent();
    virtual bool GotoEvent(long event_number);
  };
 
} /* End namespace dd4hep   */
 
#endif // DDEVE_LCIO_LCIOEVENTHANDLER_H