//____________________________________________________________________
//
// Module to copy event header from input to output node - nothing
// more, nothing less. 
//

//____________________________________________________________________
// $Id: BrHeaderModule.cxx,v 1.2 2001/12/14 15:41:16 cholm Exp $
// $Author: cholm $
// $Date: 2001/12/14 15:41:16 $
// $Copyright: 2001 BRAHMS Collaboration <brahmlib@rhic.bnl.gov>
//
#ifndef BRAT_BrHeaderModule
#include "BrHeaderModule.h"
#endif
#ifndef ROOT_TDirectory
#include "TDirectory.h"
#endif
#ifndef BRAT_BrEvent
#include "BrEvent.h"
#endif
#ifndef BRAT_BrEventHeader
#include "BrEventHeader.h"
#endif
#include <iostream.h>

//____________________________________________________________________
ClassImp(BrHeaderModule);

//____________________________________________________________________
 BrHeaderModule::BrHeaderModule()
{}

//____________________________________________________________________
 BrHeaderModule::BrHeaderModule(const Char_t* name, const Char_t* title)
  : BrModule(name, title)
{
  // Named constructor
  SetState(kSetup);
}

//____________________________________________________________________
 void BrHeaderModule::Event(BrEventNode* inNode, BrEventNode* outNode)
{ 
  // Main method. Process one event.
  SetState(kEvent);
  Reset();

  if (DebugLevel() > 9) 
    inNode->Print("");

  if (inNode->IsA() != BrEvent::Class()) {
    Stop("Event", "Input node is not an event");
    return; 
  }
  if (outNode->IsA() != BrEvent::Class()) {
    Stop("Event", "Output node is not an event");
    return; 
  }
  
  BrEventHeader* header = ((BrEvent*)inNode)->GetEventHeader();
  if (!header) {
    Stop("Event", "Couldn't get header from input");
    return;
  }
    
  ((BrEvent*)outNode)->GetEventHeader()->SetEventHeader(header);

  Info(10 ,"Event", "Event Header: %d.%d - %d", 
       ((BrEvent*)outNode)->GetRunNumber(), 
       ((BrEvent*)outNode)->GetEventNumber(), 
       ((BrEvent*)outNode)->GetDate());
} 

//____________________________________________________________________
 void BrHeaderModule::Print(Option_t* option) const
{ 
  // Module Information method
  //
  // Options: (see also BrModule::Print)
  //  
  TString opt(option);
  opt.ToLower();
  
  BrModule::Print(option);
  if (opt.Contains("d"))
   cout << endl
         << "  Original author: Christian Holm Christensen" << endl
         << "  Revisted by:     $Author: cholm $" << endl 
         << "  Revision date:   $Date: 2001/12/14 15:41:16 $"   << endl
         << "  Revision number: $Revision: 1.2 $ " << endl 
         << endl
         << "-------------------------------------------------" << endl;

} 

Copyright ; 2002 BRAHMS Collaboration <brahmlib@rcf.rhic.bnl.gov>
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