oasisexception.h

使用stl技术,(还没看,是听说的)

/******************************************************************************
 * This source file is part of Bad Camel Gaming
 * Copyright (C) 2003  Zephie Greyvenstein
 * See Readme.html for acknowledgements
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *****************************************************************************/

/******************************************************************************
 * FILENAME    : oasisException.h
 * DESCRIPTION : The exception class
 * AUTHOR      : Zephie Greyvenstein
 *****************************************************************************/

/// Avoid double inclusion
#ifndef __EXCEPTION_H__
#define __EXCEPTION_H__

/// Include common stuff
#include "oasisCommon.h"

/// Define to throw the exception
/// Format : Exception( type, description, sourcefile )
#define oasisError( t, d, s ) throw( Oasis::exception( t, d, s, __FILE__, __LINE__ ) )

namespace Oasis {
  /// The exception class
  class _oasisExport exception {
  public:
    /// Type of exceptions that are thrown
    enum ExceptionType {    
      /// Null pointer
      ET_NULL_POINTER          = 0,      
      /// Item exists
      ET_DUPLICATE_ITEM        = 1,
      /// File gone awol
      ET_FILE_NOT_FOUND        = 2,
      /// Item could not be located
      ET_ITEM_NOT_FOUND        = 3,
      /// Other internal error
      ET_INTERNAL_ERROR        = 4
    };

    /// Constructor
    exception( uint8 errorType,
	       const string &description,
	       const string &sourceFile );
    /// Constructor
    exception( uint8 errorType,
	       const string &description,
	       const string &sourceFile,
	       char *file,
	       uint16 line );
    
    /// Copy constructor
    exception( const exception &rhs );

    /// Deconstructor
    virtual ~exception( );

    /// Assignment operation
    void operator = ( const exception &rhs );

    /// Get full description
    const string &getDescription( void ) const;
    /// Get the error number
    const uint8 getErrorNumber( void ) const;

  private:
    /// The source file
    string source;
    /// The description
    string fullDescription;
    /// The file name
    string fileName;
    /// The line number
    uint16 lineNo;
    /// Exception type
    uint8 exceptionType;

    /// Get the formatted error message
    const string _getErrorMessage( void ) const;
  };
};

#endif