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/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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 are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qxsdschemamerger_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

XsdSchemaMerger::XsdSchemaMerger(const XsdSchema::Ptr &schema, const XsdSchema::Ptr &otherSchema)
{
    merge(schema, otherSchema);
}

XsdSchema::Ptr XsdSchemaMerger::mergedSchema() const
{
    return m_mergedSchema;
}

void XsdSchemaMerger::merge(const XsdSchema::Ptr &schema, const XsdSchema::Ptr &otherSchema)
{
    m_mergedSchema = XsdSchema::Ptr(new XsdSchema(otherSchema->namePool()));

    // first fill the merged schema with the values from schema
    if (schema) {
        const XsdElement::List elements = schema->elements();
        for (int i = 0; i < elements.count(); ++i) {
            m_mergedSchema->addElement(elements.at(i));
        }

        const XsdAttribute::List attributes = schema->attributes();
        for (int i = 0; i < attributes.count(); ++i) {
            m_mergedSchema->addAttribute(attributes.at(i));
        }

        const SchemaType::List types = schema->types();
        for (int i = 0; i < types.count(); ++i) {
            m_mergedSchema->addType(types.at(i));
        }

        const SchemaType::List anonymousTypes = schema->anonymousTypes();
        for (int i = 0; i < anonymousTypes.count(); ++i) {
            m_mergedSchema->addAnonymousType(anonymousTypes.at(i));
        }

        const XsdModelGroup::List elementGroups = schema->elementGroups();
        for (int i = 0; i < elementGroups.count(); ++i) {
            m_mergedSchema->addElementGroup(elementGroups.at(i));
        }

        const XsdAttributeGroup::List attributeGroups = schema->attributeGroups();
        for (int i = 0; i < attributeGroups.count(); ++i) {
            m_mergedSchema->addAttributeGroup(attributeGroups.at(i));
        }

        const XsdNotation::List notations = schema->notations();
        for (int i = 0; i < notations.count(); ++i) {
            m_mergedSchema->addNotation(notations.at(i));
        }

        const XsdIdentityConstraint::List identityConstraints = schema->identityConstraints();
        for (int i = 0; i < identityConstraints.count(); ++i) {
            m_mergedSchema->addIdentityConstraint(identityConstraints.at(i));
        }
    }

    // then merge in the values from the otherSchema
    {
        const XsdElement::List elements = otherSchema->elements();
        for (int i = 0; i < elements.count(); ++i) {
            if (!m_mergedSchema->element(elements.at(i)->name(otherSchema->namePool())))
                m_mergedSchema->addElement(elements.at(i));
        }

        const XsdAttribute::List attributes = otherSchema->attributes();
        for (int i = 0; i < attributes.count(); ++i) {
            if (!m_mergedSchema->attribute(attributes.at(i)->name(otherSchema->namePool())))
                m_mergedSchema->addAttribute(attributes.at(i));
        }

        const SchemaType::List types = otherSchema->types();
        for (int i = 0; i < types.count(); ++i) {
            if (!m_mergedSchema->type(types.at(i)->name(otherSchema->namePool())))
                m_mergedSchema->addType(types.at(i));
        }

        const SchemaType::List anonymousTypes = otherSchema->anonymousTypes();
        for (int i = 0; i < anonymousTypes.count(); ++i) {
            // add anonymous type as they are
            m_mergedSchema->addAnonymousType(anonymousTypes.at(i));
        }

        const XsdModelGroup::List elementGroups = otherSchema->elementGroups();
        for (int i = 0; i < elementGroups.count(); ++i) {
            if (!m_mergedSchema->elementGroup(elementGroups.at(i)->name(otherSchema->namePool())))
                m_mergedSchema->addElementGroup(elementGroups.at(i));
        }

        const XsdAttributeGroup::List attributeGroups = otherSchema->attributeGroups();
        for (int i = 0; i < attributeGroups.count(); ++i) {
            if (!m_mergedSchema->attributeGroup(attributeGroups.at(i)->name(otherSchema->namePool())))
                m_mergedSchema->addAttributeGroup(attributeGroups.at(i));
        }

        const XsdNotation::List notations = otherSchema->notations();
        for (int i = 0; i < notations.count(); ++i) {
            if (!m_mergedSchema->notation(notations.at(i)->name(otherSchema->namePool())))
                m_mergedSchema->addNotation(notations.at(i));
        }

        const XsdIdentityConstraint::List identityConstraints = otherSchema->identityConstraints();
        for (int i = 0; i < identityConstraints.count(); ++i) {
            if (!m_mergedSchema->identityConstraint(identityConstraints.at(i)->name(otherSchema->namePool())))
                m_mergedSchema->addIdentityConstraint(identityConstraints.at(i));
        }
    }
}

QT_END_NAMESPACE