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source: code/branches/ipv6/src/libraries/util/Exception.cc @ 7395

Last change on this file since 7395 was 7174, checked in by rgrieder, 14 years ago

Only catch exceptions you actually expect. And rethrow unknown exceptions ("…" can also catch internal Microsoft exceptions like floating point exception).

  • Property svn:eol-style set to native
File size: 3.5 KB
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1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Reto Grieder
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/**
30@file
31@brief
32    Implementation of the Exception class.
33*/
34
35#include "Exception.h"
36
37#include <CEGUIExceptions.h>
38#include "Debug.h"
39
40namespace orxonox
41{
42    Exception::Exception(const std::string& description, unsigned int lineNumber,
43                         const char* filename, const char* functionName)
44        : description_(description)
45        , lineNumber_(lineNumber)
46        , functionName_(functionName)
47        , filename_(filename)
48    { }
49
50    Exception::Exception(const std::string& description)
51        : description_(description)
52        , lineNumber_(0)
53    { }
54
55    /**
56    @remarks
57        The composed full description gets stored to fullDescription_. But for compliance
58        with std::exception, this method has to be const. Hence fullDescription_ is declared
59        as mutable.
60    */
61    const std::string& Exception::getFullDescription() const
62    {
63        if (fullDescription_.empty())
64        {
65            std::ostringstream fullDesc;
66
67            fullDesc << this->getTypeName() << "Exception";
68
69            if (!this->filename_.empty())
70            {
71                fullDesc << " in " << this->filename_;
72                if (this->lineNumber_)
73                    fullDesc << '(' << this->lineNumber_ << ')';
74            }
75
76            if (!this->functionName_.empty())
77                fullDesc << " in function '" << this->functionName_ << '\'';
78
79            fullDesc << ": ";
80            if (!this->description_.empty())
81                fullDesc << this->description_;
82            else
83                fullDesc << "No description available.";
84
85            this->fullDescription_ = fullDesc.str();
86        }
87
88        return fullDescription_;
89    }
90
91    //! Returns the error description
92    const char* Exception::what() const throw()
93    {
94        return getDescription().c_str();
95    }
96
97    /*static*/ std::string Exception::handleMessage()
98    {
99        try
100        {
101            // rethrow
102            throw;
103        }
104        catch (const std::exception& ex)
105        {
106            return ex.what();
107        }
108        catch (const CEGUI::Exception& ex)
109        {
110#if CEGUI_VERSION_MAJOR == 0 && CEGUI_VERSION_MINOR < 6
111            return GeneralException(ex.getMessage().c_str()).getDescription();
112#else
113            return GeneralException(ex.getMessage().c_str(), ex.getLine(),
114                ex.getFileName().c_str(), ex.getName().c_str()).getDescription();
115#endif
116        }
117        catch (...)
118        {
119            COUT(0) << "BIG WARNING: Unknown exception type encountered."
120                    << "Rethrowing" << endl;
121            throw;
122        }
123    }
124}
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