convert.cxx

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// Dear emacs, this is -*- c++ -*-
 
/**
 * @file test/convert.cxx
 * @author <a href="mailto:Andre.dos.Anjos@cern.ch>André Rabello dos
 * ANJOS</a>
 * $Author: zhangy $
 * $Revision: 1.1.1.1 $
 * $Date: 2009/06/19 07:35:41 $
 *
 * This source code describes a small test program based on the eformat
 * library. It will read a file containing complete events in v2.4 format and
 * convert the events into v3.0. The output is dumped to an output file.
 */
 
#include <cstdlib>
#include <fstream>
#include <iostream>
 
#include "eformat/eformat.h"
#include "eformat/old/eformat.h"
#include "eformat/write/eformat.h"
 
/**
 * The maximum event size, in words
 */
const size_t MAX_EVENT_SIZE = 2500000;
 
/**
 * Reads a file and check its validity (for the time being)
 */
int main( int argc, char** argv ) {
  using namespace eformat;
 
  if ( argc != 3 )
  {
    std::cerr << "usage: " << argv[0] << " <v2.4 file> <v3.0 file>" << std::endl;
    std::exit( 1 );
  }
 
  // open normally a file
  std::fstream in( argv[1], std::ios::in | std::ios::binary );
  if ( !in )
  {
    std::cerr << "File `" << argv[1] << "' does not exist?!" << std::endl;
    std::exit( 1 );
  }
  // open normally a file
  std::fstream out( argv[2], std::ios::out | std::ios::binary );
  if ( !out )
  {
    std::cerr << "Cannot write to `" << argv[1] << "?!" << std::endl;
    std::exit( 1 );
  }
 
  uint32_t* event  = new uint32_t[MAX_EVENT_SIZE];
  uint32_t* nevent = new uint32_t[MAX_EVENT_SIZE];
 
  while ( true )
  {
 
    if ( !( next_fragment( in, event, MAX_EVENT_SIZE * 4 ) ) ) break;
    uint32_t l1id = 0;
 
    old::FullEventFragment fe( event );
 
    try
    { fe.check_tree(); } catch ( eformat::BadVersionIssue& ex )
    {
      std::cerr << " !! WARNING: found event with format version = " << HEX( ex.current() )
                << std::endl;
      if ( ex.current() != MAJOR_DEFAULT_VERSION )
      {
        std::cerr << " -> I cannot cope with this format. Skipping..." << std::endl;
        continue;
      }
      else { std::cout << " -> Event will be simply copied..." << std::endl; }
    } catch ( eformat::Issue& ex )
    {
      std::cerr << "Uncaught eformat issue: " << ex.what() << std::endl;
      std::cerr << " -> Trying to continue..." << std::endl;
      continue;
    } catch ( ... )
    {
      std::cerr << std::endl << "Uncaught unknown exception" << std::endl;
      delete[] event;
      delete[] nevent;
      std::exit( 1 );
    }
 
    try
    {
      // if check is ok, print the lvl1 identifier
      std::cout << "Event #" << fe.lvl1_id() << " [" << HEX( fe.version() ) << "] -> ["
                << HEX( 0x03000000 ) << "]" << std::endl;
      old::convert( event, nevent, MAX_EVENT_SIZE );
      FullEventFragment<const uint32_t*> nfe( nevent );
      nfe.check_tree();
      l1id = nfe.lvl1_id();
    } catch ( eformat::Issue& ex )
    {
      std::cerr << "Uncaught eformat issue: " << ex.what() << std::endl;
      std::cerr << " -> Trying to continue..." << std::endl;
      continue;
    } catch ( ers::Issue& ex )
    {
      std::cerr << "Uncaught ERS issue: " << ex.what() << std::endl;
      delete[] event;
      delete[] nevent;
      std::exit( 1 );
    } catch ( std::exception& ex )
    {
      std::cerr << "Uncaught std exception: " << ex.what() << std::endl;
      delete[] event;
      delete[] nevent;
      std::exit( 1 );
    } catch ( ... )
    {
      std::cerr << std::endl << "Uncaught unknown exception" << std::endl;
      delete[] event;
      delete[] nevent;
      std::exit( 1 );
    }
    out.write( reinterpret_cast<char*>( nevent ), sizeof( uint32_t ) * nevent[1] );
    // if check is ok, print the lvl1 identifier
    std::cout << " -> (new) event #" << l1id << " converted, checked and saved." << std::endl;
  }
 
  delete[] event;
  delete[] nevent;
  return 0;
}