lbajardsilogic@143: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@143: 
lbajardsilogic@143: /*	Sound Access	
lbajardsilogic@143: 		EASAIER client application.	
lbajardsilogic@143: 		Silogic 2007. Laure Bajard. 
lbajardsilogic@143: 	
lbajardsilogic@143: 	This program is free software; you can redistribute it and/or    
lbajardsilogic@143: 	modify it under the terms of the GNU General Public License as    
lbajardsilogic@143: 	published by the Free Software Foundation; either version 2 of the    
lbajardsilogic@143: 	License, or (at your option) any later version.  See the file    
lbajardsilogic@143: 	COPYING included with this distribution for more information.
lbajardsilogic@143: */
lbajardsilogic@143: 
lbajardsilogic@143: #include "SparqlRelatedMediaReader.h"
lbajardsilogic@143: 
lbajardsilogic@143: #include <iostream>
lbajardsilogic@143: 
lbajardsilogic@257: SparqlRelatedMediaReader::SparqlRelatedMediaReader(std::map<QString, QString> *relMediaList) : 
lbajardsilogic@143: 	m_relMediaList(relMediaList)
lbajardsilogic@143: {}
lbajardsilogic@143: 
lbajardsilogic@143: bool SparqlRelatedMediaReader::parse(const QString & filename)
lbajardsilogic@143: {
lbajardsilogic@143: 	SparqlRelatedMediaHandler handler(m_relMediaList);
lbajardsilogic@143:     QXmlSimpleReader reader;
lbajardsilogic@143:     reader.setContentHandler(&handler);
lbajardsilogic@143:     reader.setErrorHandler(&handler);
lbajardsilogic@143: 
lbajardsilogic@143: 	QFile file(filename);
lbajardsilogic@143: 
lbajardsilogic@143:     if (!file.open(QFile::ReadOnly | QFile::Text)) {
lbajardsilogic@143:         return false;
lbajardsilogic@143:     }
lbajardsilogic@143: 
lbajardsilogic@143:     QXmlInputSource xmlInputSource(&file);
lbajardsilogic@143:     if (reader.parse(xmlInputSource))
lbajardsilogic@143: 	{
lbajardsilogic@143: 		return true;
lbajardsilogic@143: 	}
lbajardsilogic@143: 	
lbajardsilogic@143: 	return false;
lbajardsilogic@143: }
lbajardsilogic@143: 
lbajardsilogic@257: SparqlRelatedMediaHandler::SparqlRelatedMediaHandler(std::map<QString, QString> *relMediaList) : QXmlDefaultHandler(),
lbajardsilogic@143: 	m_relMediaList(relMediaList),
lbajardsilogic@257: 	m_inUriBinding(false),
lbajardsilogic@257: 	m_inLiteralBinding(false),
lbajardsilogic@257: 	m_curUriName("")
lbajardsilogic@143: {}
lbajardsilogic@143: 
lbajardsilogic@143: bool SparqlRelatedMediaHandler::startElement(const QString &namespaceURI, const QString &localName,
lbajardsilogic@143: 						  const QString &qName, const QXmlAttributes &attributes)
lbajardsilogic@143: {
lbajardsilogic@143: 	
lbajardsilogic@143:     QString name = qName.toLower();
lbajardsilogic@143: 
lbajardsilogic@143:     bool ok = false;
lbajardsilogic@143: 
lbajardsilogic@143:     // Valid element names:
lbajardsilogic@143:     //
lbajardsilogic@143:     // sparql
lbajardsilogic@143:     // head
lbajardsilogic@143:     // variable
lbajardsilogic@143:     // results
lbajardsilogic@143: 	// result
lbajardsilogic@143: 	// binding
lbajardsilogic@143:     
lbajardsilogic@143:     if (name == "sparql") {
lbajardsilogic@143: 
lbajardsilogic@143: 		// nothing needed
lbajardsilogic@143: 		ok = true;
lbajardsilogic@143: 
lbajardsilogic@143:     } else if (name == "head") {
lbajardsilogic@143: 
lbajardsilogic@143: 		// nothing needed
lbajardsilogic@143: 		ok = true;
lbajardsilogic@143: 
lbajardsilogic@143:     } else if (name == "variable") {
lbajardsilogic@143: 
lbajardsilogic@143: 		// nothing needed
lbajardsilogic@143: 		ok = true;
lbajardsilogic@143:     
lbajardsilogic@143:     } else if (name == "results") {
lbajardsilogic@143: 	
lbajardsilogic@143: 		// nothing needed
lbajardsilogic@143: 		ok = true;
lbajardsilogic@143: 
lbajardsilogic@143:     } else if (name == "result") {
lbajardsilogic@143: 	
lbajardsilogic@143: 		// nothing needed
lbajardsilogic@143: 		ok = true;
lbajardsilogic@143: 
lbajardsilogic@143:     } else if (name == "binding") {
lbajardsilogic@143: 	
lbajardsilogic@143: 		// nothing needed
lbajardsilogic@143: 		ok = true;
lbajardsilogic@143: 
lbajardsilogic@257:     //} else if ( (name == "uri") || (name == "literal") ) {
lbajardsilogic@257: 	} else if (name == "uri") {
lbajardsilogic@257: 		m_inUriBinding = true;	
lbajardsilogic@257: 		ok = true;
lbajardsilogic@257: 	} else if (name == "literal") {
lbajardsilogic@257: 		m_inLiteralBinding = true;	
lbajardsilogic@143: 		ok = true;
lbajardsilogic@143: 	}
lbajardsilogic@143: 
lbajardsilogic@143:     if (!ok) {
lbajardsilogic@143: 		std::cerr << "WARNING: SparqlResultsHandler-XML: Failed to completely process element \""
lbajardsilogic@143: 		  << name.toLocal8Bit().data() << "\"" << std::endl;
lbajardsilogic@143:     }
lbajardsilogic@143: 
lbajardsilogic@143:     return true;
lbajardsilogic@143: }
lbajardsilogic@143: 
lbajardsilogic@143: bool SparqlRelatedMediaHandler::endElement(const QString &namespaceURI, const QString &localName,
lbajardsilogic@143: 						const QString &qName)
lbajardsilogic@143: {
lbajardsilogic@143: 	QString name = qName.toLower();
lbajardsilogic@143: 
lbajardsilogic@257: 	//if ( (name == "uri") || (name == "literal") )
lbajardsilogic@257: 	if (name == "uri")
lbajardsilogic@143: 	{
lbajardsilogic@257: 		m_inUriBinding = false;
lbajardsilogic@257: 	}
lbajardsilogic@257: 	if (name == "literal")
lbajardsilogic@257: 	{
lbajardsilogic@257: 		m_inLiteralBinding = false;
lbajardsilogic@143: 	}
lbajardsilogic@143: 
lbajardsilogic@143: 	return true;
lbajardsilogic@143: }
lbajardsilogic@143: 
lbajardsilogic@143: bool SparqlRelatedMediaHandler::characters(const QString &str)
lbajardsilogic@143: {
lbajardsilogic@257: 	if (m_inUriBinding)
lbajardsilogic@143: 	{
lbajardsilogic@257: 		m_curUriName = str;
lbajardsilogic@257: 		
lbajardsilogic@257: 	} else if (m_inLiteralBinding)
lbajardsilogic@257: 	{
lbajardsilogic@257: 		m_relMediaList->insert(std::make_pair(m_curUriName,str));
lbajardsilogic@143: 	}
lbajardsilogic@143: 
lbajardsilogic@143:     return true;
lbajardsilogic@143: }
lbajardsilogic@143: 
lbajardsilogic@143: bool SparqlRelatedMediaHandler::error(const QXmlParseException &exception)
lbajardsilogic@143: {
lbajardsilogic@143: 	QString errorString;
lbajardsilogic@143: 	errorString += QString("ERROR: SparqlRelatedMediaHandler-XML: %1 at line %2, column %3")
lbajardsilogic@143: 	.arg(exception.message())
lbajardsilogic@143: 	.arg(exception.lineNumber())
lbajardsilogic@143: 	.arg(exception.columnNumber());
lbajardsilogic@143:     std::cerr << errorString.toLocal8Bit().data() << std::endl;
lbajardsilogic@143:     return QXmlDefaultHandler::error(exception);
lbajardsilogic@143: }
lbajardsilogic@143: 
lbajardsilogic@143: bool SparqlRelatedMediaHandler::fatalError(const QXmlParseException &exception)
lbajardsilogic@143: {
lbajardsilogic@143: 	QString errorString;
lbajardsilogic@143: 	errorString += QString("FATAL ERROR: SparqlRelatedMediaHandler-XML: %1 at line %2, column %3")
lbajardsilogic@143: 	.arg(exception.message())
lbajardsilogic@143: 	.arg(exception.lineNumber())
lbajardsilogic@143: 	.arg(exception.columnNumber());
lbajardsilogic@143:     std::cerr << errorString.toLocal8Bit().data() << std::endl;
lbajardsilogic@143:     return QXmlDefaultHandler::fatalError(exception);
lbajardsilogic@143: }