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281 lines
11 KiB
C++
281 lines
11 KiB
C++
//
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// Exception.h
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//
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// $Id: //poco/1.4/Foundation/include/Poco/Exception.h#2 $
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//
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// Library: Foundation
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// Package: Core
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// Module: Exception
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//
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// Definition of various Poco exception classes.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_Exception_INCLUDED
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#define Foundation_Exception_INCLUDED
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#include "Poco/Foundation.h"
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#include <stdexcept>
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namespace Poco {
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class Foundation_API Exception: public std::exception
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/// This is the base class for all exceptions defined
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/// in the Poco class library.
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{
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public:
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Exception(const std::string& msg, int code = 0);
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/// Creates an exception.
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Exception(const std::string& msg, const std::string& arg, int code = 0);
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/// Creates an exception.
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Exception(const std::string& msg, const Exception& nested, int code = 0);
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/// Creates an exception and stores a clone
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/// of the nested exception.
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Exception(const Exception& exc);
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/// Copy constructor.
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~Exception() throw();
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/// Destroys the exception and deletes the nested exception.
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Exception& operator = (const Exception& exc);
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/// Assignment operator.
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virtual const char* name() const throw();
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/// Returns a static string describing the exception.
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virtual const char* className() const throw();
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/// Returns the name of the exception class.
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virtual const char* what() const throw();
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/// Returns a static string describing the exception.
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///
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/// Same as name(), but for compatibility with std::exception.
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const Exception* nested() const;
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/// Returns a pointer to the nested exception, or
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/// null if no nested exception exists.
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const std::string& message() const;
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/// Returns the message text.
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int code() const;
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/// Returns the exception code if defined.
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std::string displayText() const;
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/// Returns a string consisting of the
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/// message name and the message text.
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virtual Exception* clone() const;
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/// Creates an exact copy of the exception.
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///
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/// The copy can later be thrown again by
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/// invoking rethrow() on it.
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virtual void rethrow() const;
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/// (Re)Throws the exception.
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///
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/// This is useful for temporarily storing a
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/// copy of an exception (see clone()), then
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/// throwing it again.
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protected:
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Exception(int code = 0);
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/// Standard constructor.
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void message(const std::string& msg);
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/// Sets the message for the exception.
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void extendedMessage(const std::string& arg);
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/// Sets the extended message for the exception.
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private:
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std::string _msg;
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Exception* _pNested;
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int _code;
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};
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//
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// inlines
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//
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inline const Exception* Exception::nested() const
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{
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return _pNested;
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}
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inline const std::string& Exception::message() const
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{
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return _msg;
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}
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inline void Exception::message(const std::string& msg)
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{
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_msg = msg;
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}
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inline int Exception::code() const
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{
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return _code;
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}
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//
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// Macros for quickly declaring and implementing exception classes.
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// Unfortunately, we cannot use a template here because character
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// pointers (which we need for specifying the exception name)
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// are not allowed as template arguments.
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//
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#define POCO_DECLARE_EXCEPTION_CODE(API, CLS, BASE, CODE) \
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class API CLS: public BASE \
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{ \
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public: \
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CLS(int code = CODE); \
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CLS(const std::string& msg, int code = CODE); \
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CLS(const std::string& msg, const std::string& arg, int code = CODE); \
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CLS(const std::string& msg, const Poco::Exception& exc, int code = CODE); \
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CLS(const CLS& exc); \
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~CLS() throw(); \
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CLS& operator = (const CLS& exc); \
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const char* name() const throw(); \
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const char* className() const throw(); \
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Poco::Exception* clone() const; \
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void rethrow() const; \
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};
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#define POCO_DECLARE_EXCEPTION(API, CLS, BASE) \
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POCO_DECLARE_EXCEPTION_CODE(API, CLS, BASE, 0)
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#define POCO_IMPLEMENT_EXCEPTION(CLS, BASE, NAME) \
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CLS::CLS(int code): BASE(code) \
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{ \
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} \
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CLS::CLS(const std::string& msg, int code): BASE(msg, code) \
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{ \
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} \
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CLS::CLS(const std::string& msg, const std::string& arg, int code): BASE(msg, arg, code) \
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{ \
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} \
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CLS::CLS(const std::string& msg, const Poco::Exception& exc, int code): BASE(msg, exc, code) \
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{ \
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} \
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CLS::CLS(const CLS& exc): BASE(exc) \
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{ \
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} \
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CLS::~CLS() throw() \
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{ \
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} \
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CLS& CLS::operator = (const CLS& exc) \
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{ \
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BASE::operator = (exc); \
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return *this; \
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} \
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const char* CLS::name() const throw() \
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{ \
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return NAME; \
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} \
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const char* CLS::className() const throw() \
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{ \
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return typeid(*this).name(); \
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} \
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Poco::Exception* CLS::clone() const \
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{ \
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return new CLS(*this); \
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} \
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void CLS::rethrow() const \
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{ \
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throw *this; \
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}
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//
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// Standard exception classes
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//
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POCO_DECLARE_EXCEPTION(Foundation_API, LogicException, Exception)
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POCO_DECLARE_EXCEPTION(Foundation_API, AssertionViolationException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, NullPointerException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, NullValueException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, BugcheckException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, InvalidArgumentException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, NotImplementedException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, RangeException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, IllegalStateException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, InvalidAccessException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, SignalException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, UnhandledException, LogicException)
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POCO_DECLARE_EXCEPTION(Foundation_API, RuntimeException, Exception)
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POCO_DECLARE_EXCEPTION(Foundation_API, NotFoundException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, ExistsException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, TimeoutException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, SystemException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, RegularExpressionException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, LibraryLoadException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, LibraryAlreadyLoadedException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, NoThreadAvailableException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, PropertyNotSupportedException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, PoolOverflowException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, NoPermissionException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, OutOfMemoryException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, DataException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, DataFormatException, DataException)
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POCO_DECLARE_EXCEPTION(Foundation_API, SyntaxException, DataException)
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POCO_DECLARE_EXCEPTION(Foundation_API, CircularReferenceException, DataException)
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POCO_DECLARE_EXCEPTION(Foundation_API, PathSyntaxException, SyntaxException)
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POCO_DECLARE_EXCEPTION(Foundation_API, IOException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, ProtocolException, IOException)
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POCO_DECLARE_EXCEPTION(Foundation_API, FileException, IOException)
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POCO_DECLARE_EXCEPTION(Foundation_API, FileExistsException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, FileNotFoundException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, PathNotFoundException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, FileReadOnlyException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, FileAccessDeniedException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, CreateFileException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, OpenFileException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, WriteFileException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, ReadFileException, FileException)
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POCO_DECLARE_EXCEPTION(Foundation_API, UnknownURISchemeException, RuntimeException)
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POCO_DECLARE_EXCEPTION(Foundation_API, ApplicationException, Exception)
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POCO_DECLARE_EXCEPTION(Foundation_API, BadCastException, RuntimeException)
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} // namespace Poco
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#endif // Foundation_Exception_INCLUDED
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