IOVCallbackError.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef IOVSVC_IOVCALLBACKERROR_H
#define IOVSVC_IOVCALLBACKERROR_H 1
 
#include "GaudiKernel/MsgStream.h"
 
#include <exception>
#include <string>
#include <iostream>
 
class IOVCallbackError: virtual public std::exception {
 
   friend inline std::ostream& operator<< ( std::ostream& os ,
                                            const IOVCallbackError&   ge ) ;
   friend inline std::ostream& operator<< ( std::ostream& os ,
                                            const IOVCallbackError*  pge ) ;   
   friend inline MsgStream&    operator<< ( MsgStream&    os ,
                                            const IOVCallbackError&   ge ) ; 
   friend inline MsgStream&    operator<< ( MsgStream&    os ,
                                            const IOVCallbackError*  pge ) ; 
   
public:
  IOVCallbackError(const std::string& source):
    m_src(source) { }
 
  virtual ~IOVCallbackError() throw() {}
 
  virtual const std::string& source() const {
    return m_src;
  }
 
  virtual std::ostream& printOut( std::ostream& os = std::cerr ) const {
    os << "IOVCallbackError generated by " << source();
    return os;
  }
 
  virtual MsgStream& printOut( MsgStream& os ) const {
    os << "IOVCallbackError generated by " << source();
    return os;
  }

  virtual const char* what () const throw() { return source().c_str() ; }  
 
private:
  std::string m_src;
};

std::ostream& operator<< ( std::ostream& os , const IOVCallbackError&   ge ) {
  return ge.printOut( os );
} 
std::ostream& operator<< ( std::ostream& os , const IOVCallbackError*  pge ) 
{ return (0 == pge) ?
    ( os << " IOVCallbackError* points to NULL!" ) : ( os << *pge ); } 

MsgStream&    operator<< ( MsgStream& os    , const IOVCallbackError&   ge ) { 
  return ge.printOut( os ); 
} 

MsgStream&    operator<< ( MsgStream& os    , const IOVCallbackError*  pge ) { 
  return (0 == pge) ?
    ( os << " IOVCallbackError* points to NULL!" ) : ( os << *pge );
} 
 
#endif