Home · All Classes · All Functions · Overviews

stationquery.cpp Example File
xmlpatterns/trafficinfo/stationquery.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation ([email protected])
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain additional
 ** rights.  These rights are described in the Nokia Qt LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you have questions regarding the use of this file, please contact
 ** Nokia at [email protected].
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "stationquery.h"

 #include <QtCore/QStringList>
 #include <QtXmlPatterns/QXmlQuery>

 StationInformation::StationInformation()
 {
 }

 StationInformation::StationInformation(const QString &id, const QString &name)
     : m_id(id), m_name(name)
 {
 }

 QString StationInformation::id() const
 {
     return m_id;
 }

 QString StationInformation::name() const
 {
     return m_name;
 }

 StationInformation::List StationQuery::query(const QString &name)
 {
     const QString stationIdQueryUrl = QString("doc(concat('http://wap.trafikanten.no/FromLink1.asp?fra=', $station))/wml/card/p/small/a[@title='Velg']/substring(@href,18)");
     const QString stationNameQueryUrl = QString("doc(concat('http://wap.trafikanten.no/FromLink1.asp?fra=', $station))/wml/card/p/small/a[@title='Velg']/string()");

     QStringList stationIds;
     QStringList stationNames;

     QXmlQuery query;

     query.bindVariable("station", QVariant(QString::fromLatin1(QUrl::toPercentEncoding(name))));
     query.setQuery(stationIdQueryUrl);
     query.evaluateTo(&stationIds);

     query.bindVariable("station", QVariant(QString::fromLatin1(QUrl::toPercentEncoding(name))));
     query.setQuery(stationNameQueryUrl);
     query.evaluateTo(&stationNames);

     if (stationIds.count() != stationNames.count()) // something went wrong...
         return StationInformation::List();

     StationInformation::List information;
     for (int i = 0; i < stationIds.count(); ++i)
         information.append(StationInformation(stationIds.at(i), stationNames.at(i)));

     return information;
 }