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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore>
#include <QtXmlPatterns>
class SchemaValidator
{
public:
void validateFromUrl() const;
void validateFromFile() const;
void validateFromData() const;
void validateComplete() const;
private:
QXmlSchema getSchema() const;
};
void SchemaValidator::validateFromUrl() const
{
//! [0]
const QXmlSchema schema = getSchema();
const QUrl url("http://www.schema-example.org/test.xml");
QXmlSchemaValidator validator(schema);
if (validator.validate(url))
qDebug() << "instance document is valid";
else
qDebug() << "instance document is invalid";
//! [0]
}
void SchemaValidator::validateFromFile() const
{
//! [1]
const QXmlSchema schema = getSchema();
QFile file("test.xml");
file.open(QIODevice::ReadOnly);
QXmlSchemaValidator validator(schema);
if (validator.validate(&file, QUrl::fromLocalFile(file.fileName())))
qDebug() << "instance document is valid";
else
qDebug() << "instance document is invalid";
//! [1]
}
void SchemaValidator::validateFromData() const
{
//! [2]
const QXmlSchema schema = getSchema();
QByteArray data("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
"<test></test>");
QBuffer buffer(&data);
buffer.open(QIODevice::ReadOnly);
QXmlSchemaValidator validator(schema);
if (validator.validate(&buffer))
qDebug() << "instance document is valid";
else
qDebug() << "instance document is invalid";
//! [2]
}
QXmlSchema SchemaValidator::getSchema() const
{
QByteArray data("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
"<xsd:schema"
" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\""
" xmlns=\"http://qt.nokia.com/xmlschematest\""
" targetNamespace=\"http://qt.nokia.com/xmlschematest\""
" version=\"1.0\""
" elementFormDefault=\"qualified\">"
"</xsd:schema>");
QBuffer buffer(&data);
buffer.open(QIODevice::ReadOnly);
QXmlSchema schema;
schema.load(&buffer);
return schema;
}
void SchemaValidator::validateComplete() const
{
//! [3]
QUrl schemaUrl("file:///home/user/schema.xsd");
QXmlSchema schema;
schema.load(schemaUrl);
if (schema.isValid()) {
QFile file("test.xml");
file.open(QIODevice::ReadOnly);
QXmlSchemaValidator validator(schema);
if (validator.validate(&file, QUrl::fromLocalFile(file.fileName())))
qDebug() << "instance document is valid";
else
qDebug() << "instance document is invalid";
}
//! [3]
}
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
SchemaValidator validator;
validator.validateFromUrl();
validator.validateFromFile();
validator.validateFromData();
validator.validateComplete();
return 0;
}
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