core/include/SError.h

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// Dear emacs, this is -*- c++ -*-
// $Id: SError.h 120 2009-08-27 12:02:57Z krasznaa $
/***************************************************************************
 * @Project: SFrame - ROOT-based analysis framework for ATLAS
 * @Package: Core
 *
 * @author Stefan Ask       <Stefan.Ask@cern.ch>           - Manchester
 * @author David Berge      <David.Berge@cern.ch>          - CERN
 * @author Johannes Haller  <Johannes.Haller@cern.ch>      - Hamburg
 * @author A. Krasznahorkay <Attila.Krasznahorkay@cern.ch> - CERN/Debrecen
 *
 ***************************************************************************/

#ifndef SFRAME_CORE_SError_H
#define SFRAME_CORE_SError_H

// STD include(s):
#include <exception>
#include <sstream>

class SError : public std::exception,
               public std::ostringstream {

public:

   enum Severity {
      SkipEvent = 1,     
      SkipFile = 2,      
      SkipInputData = 3, 
      SkipCycle = 4,     
      StopExecution = 5  
   };

   SError( Severity severity = SkipEvent ) throw();
   SError( const char* description, Severity severity = SkipEvent ) throw();
   SError( const SError& parent ) throw();

   virtual ~SError() throw();

   void SetDescription( const char* description ) throw();
   void SetSeverity( Severity severity ) throw();

   virtual const char* what()    const throw();
   virtual Severity    request() const throw();


   template < class T > SError& operator<< ( T arg ) {
      ( * ( std::ostringstream* ) this ) << arg;
      return *this;
   }

private:

   Severity m_severity;

}; // class SError

#endif // SFRAME_CORE_SError_H