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/****************************************************************************
**
** Copyright (C) 2012 Sandro S. Andrade <sandroandrade@kde.org>
** Contact: http://www.qt-project.org/
**
** This file is part of the QtWrappedObjects module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qxmireader.h"
#include "qxmireader_p.h"
#include "qwrappedobject.h"
#include "qmetamodelplugin.h"
#include "qmetawrappedobject.h"
#include <QtCore/QDir>
#include <QtCore/QStack>
#include <QtCore/QPluginLoader>
#include <QtCore/QCoreApplication>
QT_BEGIN_NAMESPACE
QXmiReaderPrivate::QXmiReaderPrivate()
{
}
QXmiReaderPrivate::~QXmiReaderPrivate()
{
}
QXmiReader::QXmiReader(QScriptEngine *scriptEngine, bool initMetaModel, QObject *parent) :
QObject(*new QXmiReaderPrivate, parent)
{
Q_D(QXmiReader);
d->scriptEngine = scriptEngine;
d->initMetaModel = initMetaModel;
loadPlugins();
}
QXmiReader::~QXmiReader()
{
}
void QXmiReader::loadPlugins()
{
Q_D(QXmiReader);
d->metaModelPlugins.clear();
QMetaModelPlugin *metaModelPlugin = 0;
foreach (QString pluginPath, QCoreApplication::libraryPaths()) {
QDir pluginsDir(pluginPath);
pluginsDir.cd(QString::fromLatin1("metamodels"));
foreach (QString fileName, pluginsDir.entryList(QDir::Files)) {
QPluginLoader loader(pluginsDir.absoluteFilePath(fileName));
QObject *plugin = loader.instance();
if (plugin && (metaModelPlugin = qobject_cast<QMetaModelPlugin *>(plugin)))
d->metaModelPlugins.insert(metaModelPlugin->metaModelNamespaceUri(), metaModelPlugin);
}
}
}
QWrappedObject *QXmiReader::readFile(QIODevice *device)
{
Q_D(QXmiReader);
d->errors.clear();
d->reader.setDevice(device);
QWrappedObject *rootElement = 0;
d->xmlNamespaceToImplementationNamespace.clear();
while (!d->reader.atEnd()) {
d->reader.readNext();
if (d->reader.isStartElement()) {
foreach (const QXmlStreamNamespaceDeclaration &namespaceDeclaration, d->reader.namespaceDeclarations()) {
QMetaModelPlugin *metaModelPlugin = d->metaModelPlugins.value(namespaceDeclaration.namespaceUri().toString());
if (metaModelPlugin) {
if (d->initMetaModel)
metaModelPlugin->initMetaModel(d->scriptEngine);
d->xmlNamespaceToImplementationNamespace.insert(namespaceDeclaration.prefix().toString(), metaModelPlugin->metaModelNamespace());
}
else {
d->errors << QString::fromLatin1("Could not find metamodel for namespace URI '%1'").arg(namespaceDeclaration.namespaceUri().toString());
}
}
QString xmiType = d->reader.attributes().value(QString::fromLatin1("xmi:type")).toString();
if (xmiType.isEmpty() && d->reader.qualifiedName() != d->reader.name())
xmiType = d->reader.qualifiedName().toString();
if (xmiType.isEmpty() || d->xmlNamespaceToImplementationNamespace[xmiType.split(':').first()].isEmpty())
continue;
xmiType = QString::fromLatin1("%1::Q%2 *").arg(d->xmlNamespaceToImplementationNamespace[xmiType.split(':').first()]).arg(xmiType.split(':').last());
QString instanceName = d->reader.attributes().value(QString::fromLatin1("name")).toString();
if (instanceName.isEmpty())
instanceName = d->reader.attributes().value(QString::fromLatin1("xmi:id")).toString();
QWrappedObject *wrappedObject = createInstance(xmiType, instanceName);
if (wrappedObject) {
d->idMap.insert(d->reader.attributes().value(QString::fromLatin1("xmi:id")).toString(), wrappedObject);
if (!rootElement)
rootElement = wrappedObject;
}
else
d->errors << QString::fromLatin1("Could not create instance with id '%1' and type '%2'. Corresponding metamodel loaded ?").arg(instanceName).arg(xmiType);
}
}
device->reset();
d->reader.clear();
d->reader.setDevice(device);
QStack<QPair<QString, QWrappedObject *>> stack;
while (!d->reader.atEnd()) {
d->reader.readNext();
if (d->reader.isStartElement()) {
QString id = d->reader.attributes().value(QString::fromLatin1("xmi:id")).toString();
if (id.isEmpty())
id = d->reader.attributes().value(QString::fromLatin1("xmi:idref")).toString();
if (id.isEmpty())
id = d->reader.attributes().value(QString::fromLatin1("href")).toString();
if (id.isEmpty() && !stack.isEmpty())
continue;
QWrappedObject *wrappedObject = d->idMap.value(id);
if (wrappedObject) {
const QMetaWrappedObject *metaWrappedObject = wrappedObject->metaWrappedObject();
foreach (QXmlStreamAttribute attribute, d->reader.attributes()) {
int propertyIndex;
if ((propertyIndex = metaWrappedObject->indexOfProperty(attribute.name().toString().toLatin1())) != -1) {
QMetaPropertyInfo metaPropertyInfo = metaWrappedObject->property(propertyIndex);
QMetaProperty metaProperty = metaPropertyInfo.metaProperty;
if (metaProperty.type() == QVariant::Bool) {
if (!wrappedObject->setProperty(attribute.name().toString().toLatin1(), attribute.value().toString() == QString::fromLatin1("true") ? true:false))
d->errors << QString::fromLatin1("Error when setting property '%1' of object with id '%2'.").arg(attribute.name().toString()).arg(id);
}
else if (metaProperty.isEnumType()) {
if (!wrappedObject->setProperty(attribute.name().toString().toLatin1(), QString::fromLatin1(metaProperty.enumerator().valueToKey(attribute.value().toString().toInt())).toLower().remove(QString::fromLatin1(metaProperty.name())).toLatin1()))
d->errors << QString::fromLatin1("Error when setting property '%1' of object with id '%2'.").arg(attribute.name().toString()).arg(id);
}
else if (metaProperty.type() == QVariant::String) {
if (!wrappedObject->setProperty(attribute.name().toString().toLatin1(), attribute.value().toString()))
d->errors << QString::fromLatin1("Error when setting property '%1' of object with id '%2'.").arg(attribute.name().toString()).arg(id);
}
}
else
d->errors << QString::fromLatin1("Property '%1' not found in object of type '%2'. Corresponding metamodel loaded ?").arg(attribute.name().toString()).arg(QString::fromLatin1(wrappedObject->metaObject()->className()));
}
if (!stack.isEmpty()) {
QWrappedObject *containerObject = stack.top().second;
QString elementName = d->reader.name().toString();
elementName = elementName.left(1).toUpper() + elementName.mid(1);
int methodCount = containerObject->metaObject()->methodCount();
int i;
for (i = 0; i < methodCount; ++i) {
QMetaMethod metaMethod = containerObject->metaObject()->method(i);
if (QString::fromLatin1(metaMethod.name()) == QString::fromLatin1("add%1").arg(elementName) ||
QString::fromLatin1(metaMethod.name()) == QString::fromLatin1("set%1").arg(elementName)) {
if (!metaMethod.invoke(containerObject, ::Q_ARG(QWrappedObject *, wrappedObject)))
d->errors << QString::fromLatin1("Error when invoking metamethod '%1' on object '%2'.").arg(QString::fromLatin1(metaMethod.name())).arg(containerObject->objectName());
break;
}
}
if (i == methodCount)
d->errors << QString::fromLatin1("Metamethod add/set'%1' not found on object '%2'.").arg(elementName).arg(containerObject->objectName());
}
stack.push(QPair<QString, QWrappedObject *>(d->reader.name().toString(), wrappedObject));
}
else
d->errors << QString::fromLatin1("Could not cross reference instance with id '%1' in element '%2'. Bad formed XMI file ?").arg(id).arg(d->reader.name().toString());
}
else if (d->reader.isEndElement() && !stack.isEmpty() && stack.top().first == d->reader.name()) {
stack.pop();
}
}
return rootElement;
}
QWrappedObject *QXmiReader::createInstance(QString instanceClass, QString instanceName)
{
int type;
if ((type = QMetaType::type(instanceClass.toLatin1())) != QMetaType::UnknownType) {
const QMetaObject *metaObject = QMetaType::metaObjectForType(type);
if (metaObject) {
QWrappedObject *wrappedObject = dynamic_cast<QWrappedObject *>(metaObject->newInstance());
if (wrappedObject) {
qTopLevelWrapper(wrappedObject)->setObjectName(instanceName);
return wrappedObject;
}
}
}
return 0;
}
QStringList QXmiReader::errorStrings() const
{
Q_D(const QXmiReader);
return d->errors;
}
#include "moc_qxmireader.cpp"
QT_END_NAMESPACE
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