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//
// Exception.h
//
// Library: Foundation
// Package: Core
// Module: Exception
//
// Definition of various Poco exception classes.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_Exception_INCLUDED
#define Foundation_Exception_INCLUDED
#include "Poco/Foundation.h"
#include <stdexcept>
namespace Poco {
class Foundation_API Exception: public std::exception
/// This is the base class for all exceptions defined
/// in the Poco class library.
{
public:
Exception(const std::string& msg, int code = 0);
/// Creates an exception.
Exception(const std::string& msg, const std::string& arg, int code = 0);
/// Creates an exception.
Exception(const std::string& msg, const Exception& nested, int code = 0);
/// Creates an exception and stores a clone
/// of the nested exception.
Exception(const Exception& exc);
/// Copy constructor.
~Exception() noexcept;
/// Destroys the exception and deletes the nested exception.
Exception& operator = (const Exception& exc);
/// Assignment operator.
virtual const char* name() const noexcept;
/// Returns a static string describing the exception.
virtual const char* className() const noexcept;
/// Returns the name of the exception class.
virtual const char* what() const noexcept;
/// Returns a static string describing the exception.
///
/// Same as name(), but for compatibility with std::exception.
const Exception* nested() const;
/// Returns a pointer to the nested exception, or
/// null if no nested exception exists.
const std::string& message() const;
/// Returns the message text.
int code() const;
/// Returns the exception code if defined.
virtual std::string displayText() const;
/// Returns a string consisting of the
/// message name and the message text.
virtual Exception* clone() const;
/// Creates an exact copy of the exception.
///
/// The copy can later be thrown again by
/// invoking rethrow() on it.
virtual void rethrow() const;
/// (Re)Throws the exception.
///
/// This is useful for temporarily storing a
/// copy of an exception (see clone()), then
/// throwing it again.
protected:
Exception(int code = 0);
/// Standard constructor.
void message(const std::string& msg);
/// Sets the message for the exception.
void extendedMessage(const std::string& arg);
/// Sets the extended message for the exception.
private:
std::string _msg;
Exception* _pNested;
int _code;
};
//
// inlines
//
inline const Exception* Exception::nested() const
{
return _pNested;
}
inline const std::string& Exception::message() const
{
return _msg;
}
inline void Exception::message(const std::string& msg)
{
_msg = msg;
}
inline int Exception::code() const
{
return _code;
}
//
// Macros for quickly declaring and implementing exception classes.
// Unfortunately, we cannot use a template here because character
// pointers (which we need for specifying the exception name)
// are not allowed as template arguments.
//
#define POCO_DECLARE_EXCEPTION_CODE(API, CLS, BASE, CODE) \
class API CLS: public BASE \
{ \
public: \
CLS(int code = CODE); \
CLS(const std::string& msg, int code = CODE); \
CLS(const std::string& msg, const std::string& arg, int code = CODE); \
CLS(const std::string& msg, const Poco::Exception& exc, int code = CODE); \
CLS(const CLS& exc); \
~CLS() noexcept; \
CLS& operator = (const CLS& exc); \
const char* name() const noexcept; \
const char* className() const noexcept; \
Poco::Exception* clone() const; \
void rethrow() const; \
};
#define POCO_DECLARE_EXCEPTION(API, CLS, BASE) \
POCO_DECLARE_EXCEPTION_CODE(API, CLS, BASE, 0)
#define POCO_IMPLEMENT_EXCEPTION(CLS, BASE, NAME) \
CLS::CLS(int otherCode): BASE(otherCode) \
{ \
} \
CLS::CLS(const std::string& msg, int otherCode): BASE(msg, otherCode) \
{ \
} \
CLS::CLS(const std::string& msg, const std::string& arg, int otherCode): BASE(msg, arg, otherCode) \
{ \
} \
CLS::CLS(const std::string& msg, const Poco::Exception& exc, int otherCode): BASE(msg, exc, otherCode) \
{ \
} \
CLS::CLS(const CLS& exc): BASE(exc) \
{ \
} \
CLS::~CLS() noexcept \
{ \
} \
CLS& CLS::operator = (const CLS& exc) \
{ \
BASE::operator = (exc); \
return *this; \
} \
const char* CLS::name() const noexcept \
{ \
return NAME; \
} \
const char* CLS::className() const noexcept \
{ \
return typeid(*this).name(); \
} \
Poco::Exception* CLS::clone() const \
{ \
return new CLS(*this); \
} \
void CLS::rethrow() const \
{ \
throw *this; \
}
//
// Standard exception classes
//
POCO_DECLARE_EXCEPTION(Foundation_API, LogicException, Exception)
POCO_DECLARE_EXCEPTION(Foundation_API, AssertionViolationException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, NullPointerException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, NullValueException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, BugcheckException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, InvalidArgumentException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, NotImplementedException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, RangeException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, IllegalStateException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, InvalidAccessException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, SignalException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, UnhandledException, LogicException)
POCO_DECLARE_EXCEPTION(Foundation_API, RuntimeException, Exception)
POCO_DECLARE_EXCEPTION(Foundation_API, NotFoundException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, ExistsException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, TimeoutException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, SystemException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, RegularExpressionException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, LibraryLoadException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, LibraryAlreadyLoadedException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, NoThreadAvailableException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, PropertyNotSupportedException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, PoolOverflowException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, NoPermissionException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, OutOfMemoryException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, DataException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, DataFormatException, DataException)
POCO_DECLARE_EXCEPTION(Foundation_API, SyntaxException, DataException)
POCO_DECLARE_EXCEPTION(Foundation_API, CircularReferenceException, DataException)
POCO_DECLARE_EXCEPTION(Foundation_API, PathSyntaxException, SyntaxException)
POCO_DECLARE_EXCEPTION(Foundation_API, IOException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, ProtocolException, IOException)
POCO_DECLARE_EXCEPTION(Foundation_API, FileException, IOException)
POCO_DECLARE_EXCEPTION(Foundation_API, FileExistsException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, FileNotFoundException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, PathNotFoundException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, FileReadOnlyException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, FileAccessDeniedException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, CreateFileException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, OpenFileException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, WriteFileException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, ReadFileException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, DirectoryNotEmptyException, FileException)
POCO_DECLARE_EXCEPTION(Foundation_API, UnknownURISchemeException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, TooManyURIRedirectsException, RuntimeException)
POCO_DECLARE_EXCEPTION(Foundation_API, URISyntaxException, SyntaxException)
POCO_DECLARE_EXCEPTION(Foundation_API, ApplicationException, Exception)
POCO_DECLARE_EXCEPTION(Foundation_API, BadCastException, RuntimeException)
} // namespace Poco
#endif // Foundation_Exception_INCLUDED
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