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//
// $Id: G4OrderedTable.cc,v 1.6 2007/11/13 17:35:06 gcosmo Exp $
// GEANT4 tag $Name: HEAD $
//
// 
// ------------------------------------------------------------
//      GEANT 4 class implementation
//
//      G4OrderedTable
//
// ------------------------------------------------------------

#include "G4DataVector.hh"
#include "G4OrderedTable.hh"
#include <iostream>
#include <fstream>
#include <iomanip>

G4OrderedTable::G4OrderedTable()
  : std::vector<G4DataVector*>()
{
}

G4OrderedTable::G4OrderedTable(size_t cap)
  : std::vector<G4DataVector*>(cap, (G4DataVector*)(0) )
{
}

G4OrderedTable::~G4OrderedTable()
{
}

G4bool G4OrderedTable::Store(const G4String& fileName,
                             G4bool          ascii)
{
  std::ofstream fOut;  
  
  // open output file //
  if (!ascii)
    { fOut.open(fileName, std::ios::out|std::ios::binary); }
  else
    { fOut.open(fileName, std::ios::out); }

  // check if the file has been opened successfully 
  if (!fOut)
  {
#ifdef G4VERBOSE  
    G4cerr << "G4OrderedTable::::Store  ";
    G4cerr << " Can not open file " << fileName << G4endl;
#endif
    fOut.close();
    return false;
  }

 // Number of elements
  size_t tableSize = size(); 
  if (!ascii)
  {
    fOut.write( (char*)(&tableSize), sizeof tableSize); 
  }
  else
  {
    fOut << tableSize << G4endl;
  }

  // Data Vector
  G4int vType = G4DataVector::T_G4DataVector;
  for (G4OrderedTableIterator itr=begin(); itr!=end(); ++itr)
  {
    if (!ascii)
    {
      fOut.write( (char*)(&vType), sizeof vType); 
    }
    else
    {
      fOut << vType << G4endl;
    }
    (*itr)->Store(fOut,ascii);
  }
  fOut.close();
  return true;
}



G4bool G4OrderedTable::Retrieve(const G4String& fileName,
                                G4bool          ascii)
{
  std::ifstream fIn;  
  // open input file //
  if (ascii)
    { fIn.open(fileName,std::ios::in|std::ios::binary); }
  else
    { fIn.open(fileName,std::ios::in); }

  // check if the file has been opened successfully 
  if (!fIn)
  {
#ifdef G4VERBOSE  
    G4cerr << "G4OrderedTable::Retrieve  ";
    G4cerr << " Can not open file " << fileName << G4endl;
#endif
    fIn.close();
    return false;
  }

  // clear 
  clearAndDestroy();
  
  // Number of elements
  size_t tableSize=0; 
  if (!ascii)
  {
    fIn.read((char*)(&tableSize), sizeof tableSize); 
  }
  else
  {
    fIn >> tableSize;
  }
  reserve(tableSize); 

  // Physics Vector
  for (size_t idx=0; idx<tableSize; ++idx)
  {
    G4int vType=0;
    if (!ascii)
    {
      fIn.read( (char*)(&vType), sizeof vType); 
    }
    else
    {
      fIn >>  vType;
    }
    if (vType != G4DataVector::T_G4DataVector)
    {
#ifdef G4VERBOSE  
      G4cerr << "G4OrderedTable::Retrieve  ";
      G4cerr << " illegal Data Vector type " << vType << " in  ";
      G4cerr << fileName << G4endl;
#endif          
      fIn.close();
      return false;
    }

    G4DataVector* pVec = new G4DataVector;

    if (! (pVec->Retrieve(fIn,ascii)) )
    {
#ifdef G4VERBOSE  
      G4cerr << "G4OrderedTable::Retrieve  ";
      G4cerr << " error in retreiving " << idx
             << "-th Physics Vector from file ";
      G4cerr << fileName << G4endl;
#endif          
      fIn.close();
      return false;
    }

    // add a PhysicsVector to this OrderedTable
    push_back(pVec);
  } 
  fIn.close();
  return true;
}

std::ostream& operator<<(std::ostream& out, 
                         G4OrderedTable& right)
{
  // Printout Data Vector
  size_t i=0;
  for (G4OrderedTableIterator itr=right.begin(); itr!=right.end(); ++itr)
  {
    out << std::setw(8) << i << "-th Vector   ";
    out << ": Type    " << G4DataVector::T_G4DataVector << G4endl;
    out << *(*itr);
    i +=1;
  }
  out << G4endl;
  return out; 
}