PseudoJetPlusInfo.hh

//STARTHEADER
// $Id: PseudoJetPlusInfo.hh 1885 2011-01-27 14:50:21Z salam $
//
// Copyright (c) 2005-2010, Matteo Cacciari, Gavin Salam and Gregory Soyez
//
//----------------------------------------------------------------------
// This file is part of FastJet.
//
//  FastJet is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  The algorithms that underlie FastJet have required considerable
//  development and are described in hep-ph/0512210. If you use
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//  include a citation to the FastJet paper.
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//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
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//  You should have received a copy of the GNU General Public License
//  along with FastJet; if not, write to the Free Software
//  Foundation, Inc.:
//      59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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//ENDHEADER

#ifndef __PSEUDOJET_PLUS_INFO_HH__
#define __PSEUDOJET_PLUS_INFO_HH__

#include "fastjet/internal/numconsts.hh"
#include "fastjet/PseudoJet.hh"
#include <vector>

FASTJET_BEGIN_NAMESPACE

//-----------------------------------------------
//-----------------------------------------------
template<typename TExtraInfo>
class PseudoJetPlusInfo : public PseudoJet{
public:
  PseudoJetPlusInfo(const PseudoJet &pj, const TExtraInfo &ei) : PseudoJet(pj){
    const ExtraInfo * extra_info_ptr = extra_info();
    if (!extra_info_ptr) {
      extra_info_shared().reset(new TExtraInfo(ei));
    } else if (dynamic_cast<const TExtraInfo*>(extra_info_ptr)) {
      // then this is already a valid PseudoJetPlusInfo
      // don't do anything
    } else {
      // we already have an info but of wrong type!
      throw ("invalid extra_info for initialising PseudoJetPlusInfo");
    }
  }

  PseudoJetPlusInfo(const PseudoJet &pj) : PseudoJet(pj){
    const ExtraInfo * extra_info_ptr = pj.extra_info();
    if (extra_info_ptr) {
      if (dynamic_cast<const TExtraInfo*>(extra_info_ptr)) {
        extra_info_shared().reset(pj.extra_info_shared());
      } else {
        throw("invalid extra_info in copy constructor for PseudoJetPlusInfo");
      }
    }
  }


  const TExtraInfo* extra_info() const{
    if (!extra_info_shared()()) return NULL;
    return dynamic_cast<TExtraInfo*>(extra_info_shared().get());
  }
};


template<typename T, typename U>
std::vector<T> convert_vector_to(const std::vector<U> & in){
  std::vector<T> res;
  copy(in.begin(), in.end(), back_inserter(res));
  return res;
}




FASTJET_END_NAMESPACE

#endif  // __PSEUDOJET_PLUS_INFO_HH__