| # Gaudi Framework, version v21r8 |

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# GaudiException.h

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    00001 // $Id: GaudiException.h,v 1.6 2007/12/20 18:28:33 marcocle Exp $
    00002 #ifndef GAUDIKERNEL_GAUDIEXCEPTION_H
    00003 #define GAUDIKERNEL_GAUDIEXCEPTION_H
    00004
    00005 // Include files
    00006 #include "GaudiKernel/Kernel.h"
    00007 #include "GaudiKernel/StatusCode.h"
    00008 #include "GaudiKernel/MsgStream.h"
    00009 #include "GaudiKernel/System.h"
    00010
    00011 #include <string>
    00012 #include <iostream>
    00013 #include <exception>
    00014
    00015
    00024 class GAUDI_API GaudiException: virtual public std::exception {
    00025   // friends
    00026   friend inline std::ostream& operator<< ( std::ostream& os ,
    00027                                            const GaudiException&   ge ) ;
    00028   friend inline std::ostream& operator<< ( std::ostream& os ,
    00029                                            const GaudiException*  pge ) ;
    00030   friend inline MsgStream&    operator<< ( MsgStream&    os ,
    00031                                            const GaudiException&   ge ) ;
    00032   friend inline MsgStream&    operator<< ( MsgStream&    os ,
    00033                                            const GaudiException*  pge ) ;
    00034
    00035 public:
    00041   GaudiException( const std::string& Message,
    00042                   const std::string& Tag,
    00043                   const StatusCode & Code )
    00044     : m_message    ( Message    )
    00045     , m_tag        ( Tag        )
    00046     , m_code       ( Code       )
    00047     , m_previous   (     0      )
    00048     {}
    00049
    00056   GaudiException( const std::string&     Message    ,
    00057                   const std::string&     Tag        ,
    00058                   const StatusCode &     Code       ,
    00059                   const GaudiException&  Exception  )
    00060     : m_message    ( Message            )
    00061     , m_tag        ( Tag                )
    00062     , m_code       ( Code               )
    00063     , m_previous   ( Exception.clone()  )
    00064     {}
    00065
    00072   GaudiException( const std::string&     Message    ,
    00073                   const std::string&     Tag        ,
    00074                   const StatusCode &     Code       ,
    00075                   const std::exception&  Exception  )
    00076     : m_message    ( Message    )
    00077     , m_tag        ( Tag        )
    00078     , m_code       ( Code       )
    00079     , m_previous   (     0      )
    00080     {
    00081       m_message += ": " + System::typeinfoName(typeid(Exception)) + ", " +
    00082                    Exception.what();
    00083     }
    00084
    00086   GaudiException( const GaudiException& Exception ) : std::exception(Exception)
    00087   {
    00088     m_message  =   Exception.message() ;
    00089     m_tag      =   Exception.tag    () ;
    00090     m_code     =   Exception.code   () ;
    00091     m_previous = ( 0 == Exception.previous() ) ?
    00092       0 : Exception.previous()->clone() ;
    00093   }
    00094
    00096   virtual ~GaudiException() throw() {
    00097     if( 0 != m_previous ) { delete m_previous ; m_previous = 0 ; }
    00098   }
    00099
    00101   GaudiException& operator=( const GaudiException& Exception ) {
    00102     if ( &Exception == this ) { return *this; }
    00103     m_message  =   Exception.message() ;
    00104     m_tag      =   Exception.tag    () ;
    00105     m_code     =   Exception.code   () ;
    00106     if( 0 != m_previous ) { delete m_previous; m_previous = 0 ; }
    00107     m_previous = ( 0 == Exception.previous() ) ?
    00108       0 : Exception.previous()->clone() ;
    00109     return *this;
    00110   }
    00111
    00113   virtual const std::string&    message   () const { return m_message; }
    00114
    00116   virtual const std::string&    setMessage( const std::string& newMessage ) {
    00117     m_message = newMessage; return message() ;
    00118   }
    00119
    00121   virtual const std::string&    tag       () const { return m_tag; }
    00122
    00124   virtual const std::string&    setTag    ( const std::string& newTag     ) {
    00125     m_tag = newTag ; return tag() ;
    00126   }
    00127
    00129   virtual const StatusCode&     code      () const { return m_code; }
    00130
    00132   virtual const StatusCode&     setCode   ( const StatusCode& newStatus  ) {
    00133     m_code = newStatus; return code() ;
    00134   }
    00135
    00137   virtual GaudiException*       previous  () const { return m_previous ; }
    00138
    00140   virtual std::ostream& printOut  ( std::ostream& os = std::cerr ) const {
    00141     os << tag() << " \t " << message() ;
    00142     switch( code() ) {
    00143       case StatusCode::SUCCESS : os << "\t StatusCode=SUCCESS"    ;  break ;
    00144       case StatusCode::FAILURE : os << "\t StatusCode=FAILURE"    ;  break ;
    00145       default                  : os << "\t StatusCode=" << code() ;  break ;
    00146     }
    00147     return ( 0 != previous() ) ? previous()->printOut( os << std::endl ) : os ;
    00148   };
    00149
    00151   virtual MsgStream& printOut ( MsgStream& os ) const {
    00152     os << tag() << "\t" << message() ;
    00153     switch( code() ) {
    00154             case StatusCode::SUCCESS : os << "\t StatusCode=SUCCESS"    ;  break ;
    00155             case StatusCode::FAILURE : os << "\t StatusCode=FAILURE"    ;  break ;
    00156             default                  : os << "\t StatusCode=" << code().getCode() ;  break ;
    00157     }
    00158     return ( 0 != previous() ) ? previous()->printOut( os << endmsg ) : os ;
    00159   }
    00160
    00162   virtual GaudiException* clone() const { return new GaudiException(*this); };
    00163
    00165   virtual const char* what () const throw() { return message().c_str() ; }
    00166 protected:
    00167   mutable std::string     m_message ;
    00168   mutable std::string     m_tag     ;
    00169   mutable StatusCode      m_code    ;
    00170   mutable GaudiException* m_previous;
    00171 };
    00172
    00174 std::ostream& operator<< ( std::ostream& os , const GaudiException&   ge ) {
    00175   return ge.printOut( os );
    00176 }
    00177 std::ostream& operator<< ( std::ostream& os , const GaudiException*  pge )
    00178 { return (0 == pge) ?
    00179     ( os << " GaudiException* points to NULL!" ) : ( os << *pge ); }
    00180
    00182 MsgStream&    operator<< ( MsgStream& os    , const GaudiException&   ge ) {
    00183   return ge.printOut( os );
    00184 }
    00186 MsgStream&    operator<< ( MsgStream& os    , const GaudiException*  pge ) {
    00187   return (0 == pge) ?
    00188     ( os << " GaudiException* points to NULL!" ) : ( os << *pge );
    00189 }
    00190
    00191 #endif  // GAUDIKERNEL_GAUDIEXCEPTION_H