saxexception.cpp.svn-base

很好用的网络封装库,不熟悉网络编程的人也可以使用。使用风格良好的标准c++编写。

//
// SAXException.cpp
//
// $Id: //poco/1.3/XML/src/SAXException.cpp#1 $
//
// Library: XML
// Package: SAX
// Module:  SAX
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#include "Poco/SAX/SAXException.h"
#include "Poco/SAX/Locator.h"
#include <typeinfo>
#include <sstream>


namespace Poco {
namespace XML {


POCO_IMPLEMENT_EXCEPTION(SAXException, XMLException, "SAX Exception")
POCO_IMPLEMENT_EXCEPTION(SAXNotRecognizedException, SAXException, "Unrecognized SAX feature or property identifier")
POCO_IMPLEMENT_EXCEPTION(SAXNotSupportedException, SAXException, "Unsupported SAX feature or property identifier")


SAXParseException::SAXParseException(const std::string& msg, const Locator& loc):
	SAXException(buildMessage(msg, loc.getPublicId(), loc.getSystemId(), loc.getLineNumber(), loc.getColumnNumber())),
	_publicId(loc.getPublicId()),
	_systemId(loc.getSystemId()),
	_lineNumber(loc.getLineNumber()),
	_columnNumber(loc.getColumnNumber())
{
}


SAXParseException::SAXParseException(const std::string& msg, const Locator& loc, const Poco::Exception& exc):
	SAXException(buildMessage(msg, loc.getPublicId(), loc.getSystemId(), loc.getLineNumber(), loc.getColumnNumber()), exc),
	_publicId(loc.getPublicId()),
	_systemId(loc.getSystemId()),
	_lineNumber(loc.getLineNumber()),
	_columnNumber(loc.getColumnNumber())
{
}

	
SAXParseException::SAXParseException(const std::string& msg, const XMLString& publicId, const XMLString& systemId, int lineNumber, int columnNumber):
	SAXException(buildMessage(msg, publicId, systemId, lineNumber, columnNumber)),
	_publicId(publicId),
	_systemId(systemId),
	_lineNumber(lineNumber),
	_columnNumber(columnNumber)
{
}


SAXParseException::SAXParseException(const std::string& msg, const XMLString& publicId, const XMLString& systemId, int lineNumber, int columnNumber, const Poco::Exception& exc):
	SAXException(buildMessage(msg, publicId, systemId, lineNumber, columnNumber), exc),
	_publicId(publicId),
	_systemId(systemId),
	_lineNumber(lineNumber),
	_columnNumber(columnNumber)
{
}


SAXParseException::SAXParseException(const SAXParseException& exc):
	SAXException(exc),
	_publicId(exc._publicId),
	_systemId(exc._systemId),
	_lineNumber(exc._lineNumber),
	_columnNumber(exc._columnNumber)
{
}


SAXParseException::~SAXParseException() throw()
{
}


SAXParseException& SAXParseException::operator = (const SAXParseException& exc)
{
	if (&exc != this)
	{
		SAXException::operator = (exc);
		_publicId     = exc._publicId;
		_systemId     = exc._systemId;
		_lineNumber   = exc._lineNumber;
		_columnNumber = exc._columnNumber;
	}
	return *this;
}

	
const char* SAXParseException::name() const throw()
{
	return "SAXParseException";
}


const char* SAXParseException::className() const throw()
{
	return typeid(*this).name();
}


Poco::Exception* SAXParseException::clone() const
{
	return new SAXParseException(*this);
}


void SAXParseException::rethrow() const
{
	throw *this;
}


std::string SAXParseException::buildMessage(const std::string& msg, const XMLString& publicId, const XMLString& systemId, int lineNumber, int columnNumber)
{
	std::ostringstream result;
	if (!msg.empty()) result << msg << " ";
	result << "in ";
	if (!systemId.empty())
		result << "'" << fromXMLString(systemId) << "', ";
	else if (!publicId.empty())
		result << "'" << fromXMLString(publicId) << "', ";
	if (lineNumber > 0)
		result << "line " << lineNumber << " column " << columnNumber;
	return result.str();
}


} } // namespace Poco::XML