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Diffstat (limited to 'doc/src/snippets/qxmlschemavalidator/main.cpp')
-rw-r--r-- | doc/src/snippets/qxmlschemavalidator/main.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/doc/src/snippets/qxmlschemavalidator/main.cpp b/doc/src/snippets/qxmlschemavalidator/main.cpp new file mode 100644 index 0000000..bf88e71 --- /dev/null +++ b/doc/src/snippets/qxmlschemavalidator/main.cpp @@ -0,0 +1,159 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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; +} |