geant4/source/analysis/g4tools/include/tools/rroot/iros

// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.

#ifndef tools_rroot_iros
#define tools_rroot_iros

#include "object"
#include "../vmanip"
#include "../forit"
#include "../scast"

#include "cids"

namespace tools {
namespace rroot {

class iros : public virtual iro,public std::vector<iro*> {
  static const std::string& s_store_class() {
    static const std::string s_v("TObjArray");
    return s_v;
  }
public:
  static const std::string& s_class() {
    static const std::string s_v("tools::rroot::iros");
    return s_v;
  }
public: //iro
  virtual void* cast(const std::string& a_class) const {
    if(void* p = cmp_cast<iros>(this,a_class)) return p;
    return 0;
  }
  virtual const std::string& s_cls() const {return s_class();}
public:
  static cid id_class() {return obj_list_cid();}
  virtual void* cast(cid a_class) const {
    if(void* p = cmp_cast<iros>(this,a_class)) {return p;}
    else return 0;
  }
public:
  virtual iro* copy() const {return new iros(*this);}
  virtual bool stream(buffer& a_buffer) {
    ifac::args args;
    bool accept_null = false;
    return stream(a_buffer,args,accept_null);
  }
public:
  iros(ifac& a_fac,bool a_owner,bool a_warn /*= true*/) //a_warn used if a_owner=false.
  :m_fac(a_fac)
  ,m_owner(a_owner)
  ,m_warn(a_warn)
  {
#ifdef TOOLS_MEM
    mem::increment(s_class().c_str());
#endif
  }
  virtual ~iros(){
    _clear();
#ifdef TOOLS_MEM
    mem::decrement(s_class().c_str());
#endif
  }
public:
  iros(const iros& a_from)
  :iro(a_from)
  ,std::vector<iro*>()
  ,m_fac(a_from.m_fac)
  ,m_owner(a_from.m_owner)
  ,m_warn(a_from.m_warn)
  {
#ifdef TOOLS_MEM
    mem::increment(s_class().c_str());
#endif
    if(a_from.m_owner) {
      tools_vforcit(iro*,a_from,it) push_back((*it)->copy()); 
    } else {
      tools_vforcit(iro*,a_from,it) push_back((*it)); 
    }
  }
  iros& operator=(const iros& a_from){
    if(&a_from==this) return *this;

    _clear();

    m_owner = a_from.m_owner;
    m_warn = a_from.m_warn;

    if(a_from.m_owner) {
      tools_vforcit(iro*,a_from,it) push_back((*it)->copy()); 
    } else {
      tools_vforcit(iro*,a_from,it) push_back((*it)); 
    }

    return *this;
  }
public:
  void cleanup() {_clear();}
  void dump(std::ostream& a_out) {
    a_out << " iros : size " << size() << std::endl;
    tools_vforcit(iro*,*this,it) {
      a_out << " class " << (*it)->s_cls() << std::endl;
    }
  }
public:
  bool stream(buffer& a_buffer,const ifac::args& a_args,bool a_accept_null = false) {
    _clear();

    short v;
    unsigned int s, c;
    if(!a_buffer.read_version(v,s,c)) return false;

    //::printf("debug : iros::stream : version %d, byte count %d\n",v,c);

   {uint32 id,bits;
    if(!Object_stream(a_buffer,id,bits)) return false;}
    std::string name;
    if(!a_buffer.read(name)) return false;
    int nobjects;
    if(!a_buffer.read(nobjects)) return false;
    int lowerBound;
    if(!a_buffer.read(lowerBound)) return false;

    //::printf("debug : iros : name \"%s\", nobject %d, lowerBound %d\n",
    //  name.c_str(),nobjects,lowerBound);

    for (int i=0;i<nobjects;i++) {
      //::printf("debug : iros :    n=%d i=%d ...\n",nobjects,i);

      iro* obj;
      bool created;
      if(!a_buffer.read_object(m_fac,a_args,obj,created)){
        a_buffer.out() << "tools::rroot::iros::stream : can't read object." << std::endl;
        return false;
      }
      //::printf("debug : iros :    n=%d i=%d : ok\n",nobjects,i);
      if(obj) {
        if(created) {
	  if(m_owner) {
            push_back(obj);
	  } else { // Who manage this object ?
            if(m_warn) {
	      a_buffer.out() << "tools::rroot::iros::stream :"
                             << " warning : created object of class " << sout(obj->s_cls()) << " not managed."
                             << std::endl;
            }
            push_back(obj);
	  }
	} else { //someone else may manage this object.
	  if(m_owner) {
            a_buffer.out() << "tools::rroot::iros::stream : warning : not created object can't be manage here." << std::endl;
            return false;
	  } else {
            push_back(obj);
	  }
	}
      } else {
        //a_accept_null for branch::stream m_baskets.
        if(a_accept_null) push_back(0);
      }
    }

    return a_buffer.check_byte_count(s,c,s_store_class());
  }
protected:
  void _clear() {
    if(m_owner) {
      safe_clear<iro>(*this);
    } else {
      std::vector<iro*>::clear();
    }
  }
protected:
  ifac& m_fac;
  bool m_owner;
  bool m_warn;
};

inline bool dummy_TObjArray_pointer_stream(buffer& a_buffer,ifac& a_fac,bool a_owner,bool a_warn) {
  iros oa(a_fac,a_owner,a_warn);
  ifac::args args;
  return oa.stream(a_buffer,args);
}

}}

#endif