// -*- mode: c++ -*- 
//
// $Id: BrException.h,v 1.1.1.1 2001/06/21 14:55:19 hagel Exp $
// $Author: hagel $
// $Date: 2001/06/21 14:55:19 $
// $Copyrigth: BRAHMS Collaboration 2000
//
#ifndef BRAT_BrException
#define BRAT_BrException
#if defined(__linux__)
#include <stdlib.h>
#endif
#include <TError.h>
#include <TString.h>
#include <TObject.h>
#ifndef ROOT_Varargs
#include "Varargs.h"
#endif

class BrException : public TObject
{
protected:
  Int_t   fExitCode;    // What to exit with
  Char_t* fLocation;    // Where the exception was thrown
  Char_t* fErrorString; // What to write out
public:
  BrException(Int_t exit=kError, const char* location=NULL);
  virtual void*   Execute(void* arg=0)=0;
  // virtual void    SetErrorString(const Char_t* fmt, va_list ap);
  virtual Char_t* GetErrorString(void) const;
  virtual Int_t   GetExitCode(void) const { return fExitCode; }
  ClassDef(BrException,0) // ABC Exception class for BRAHMS DBM
}
;

//_________________________________________________________________
class BrWarning : public BrException
{
public:
#ifndef __CINT__ // Temporary hack for CINT 5.14.71
  BrWarning(const char* location, const char* fmt ...);
#else 
  BrWarning(const char* location, const char* fmt, int)
    : BrException(kWarning, location) { fErrorString = fmt; }
#endif
  void* Execute(void* arg=0) { return &fExitCode; }
  ClassDef(BrWarning,0) // Warning exception class for BRAHMS DBM
}
;

//_________________________________________________________________
class BrError : public BrException
{
public:
#ifndef __CINT__ // Temporary hack for CINT 5.14.71
  BrError(const char* location, const char* fmt ...);
#else 
  BrError(const char* location, const char* fmt, int) 
    : BrException(kError, location) { fErrorString = fmt; }
#endif
  void* Execute(void* arg=0) { return &fExitCode; }
  ClassDef(BrError,0) // Error exception class for BRAHMS DBM
}
;

//_________________________________________________________________
class BrFatal : public BrException
{
public:
#ifndef __CINT__ // Temporary hack for CINT 5.14.71
  BrFatal(const char* location, const char* fmt ...);
#else
  BrFatal(const char* location, const char* fmt, int)
    : BrException(kFatal, location) { fErrorString = fmt; }
#endif
  void* Execute(void* arg=0) { exit(fExitCode); }
  ClassDef(BrFatal,0) // Error exception class for BRAHMS DBM
}
;

ostream& operator<<(ostream& o, BrException& e);
ostream& operator<<(ostream& o, BrException* e);

#endif
//
// $Log: BrException.h,v $
// Revision 1.1.1.1  2001/06/21 14:55:19  hagel
// Initial revision of brat2
//
// Revision 1.6  2001/01/23 16:31:49  cholm
// Hack to make rootcint (CINT) ignore variadic arguments in BrException
// classes.
//
// Revision 1.5  2000/12/20 01:56:03  hagel
// Added missing includes for system calls (abort, exit, abs)
//
// Revision 1.4  2000/11/23 01:30:23  brahmlib
// Changed name/title types to const Char_t* instead of Char_t* in CTOR.
//
// Revision 1.3  2000/09/04 13:34:10  videbaek
// Move CVS log. Use BrIostream to include std iostream.
//
// Revision 1.2  2000/03/21 21:21:38  cholm
// Several changes: A few hacks where needed to compile on Digital Unix, noticably in my - Christian Holm - classes for the DB and Exceptions. Proberly still need to do something to some of Konstantins stuff. Also, I removed a lot of warnings fromt the compiler, by teddying up the code. Several places, old C-style indecies in for loops were assumed. Corrected. Unused variables have been commented out.
//
//