/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the Qt Mobility Components.

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** 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

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**

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** rights.  These rights are described in the Nokia Qt LGPL Exception

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** If you have questions regarding the use of this file, please contact

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****************************************************************************/

#include "sfwnotes.h"

ServiceWrapper::ServiceWrapper()

: serviceInstance(0)

{

    serviceManager = new QServiceManager(this);

    registerExampleServices();

}

ServiceWrapper::~ServiceWrapper()

{

    delete serviceInstance;

    unregisterExampleServices();

}

QString ServiceWrapper::interfaceName() const

{

    return m_interface;

}

void ServiceWrapper::setInterfaceName(const QString &interface)

{

    m_interface = interface;

}

QString ServiceWrapper::serviceName() const

{

    return m_service;

}

void ServiceWrapper::setServiceName(const QString &service)

{

    m_service = service;

}

QString ServiceWrapper::version() const

{

    return m_version;

}

void ServiceWrapper::setVersion(const QString &version)

{

    m_version = version;

}

bool ServiceWrapper::existsInterface()

{

    return (m_interface != "");

}

bool ServiceWrapper::existsService()

{

    return (m_service != "");

}

bool ServiceWrapper::existsVersion()

{

    return (m_version != "");

}

void ServiceWrapper::findServiceInterface()

{

    QServiceFilter filter;

    filter.setServiceName(m_service);

    if (existsInterface())

        filter.setInterface(m_interface, m_version, QServiceFilter::ExactVersionMatch);

    QList<QServiceInterfaceDescriptor> list = serviceManager->findInterfaces(filter);

    if (list.size() == 0) return;

    if (existsInterface()) {

        if (existsVersion()) {

            m_descriptor = list[0];

        } else {

            m_descriptor = serviceManager->interfaceDefault(m_interface);

        }

    } else if (existsService()) {

        if (existsVersion()) {

            for (int i=0; i<list.count(); i++) {

                QString currVersion = QString::number(list[i].majorVersion()) + "." + 

                                      QString::number(list[i].minorVersion());

                if ( currVersion == m_version) {

                    m_descriptor = list[i];

                    return;

                }

            }

        } else {

            int major = -1;

            int minor = -1;

            for (int i=0; i<list.count(); i++) {

                int currMajor = list[i].majorVersion();

                int currMinor = list[i].minorVersion();

                if (currMajor > major) {

                    major = currMajor;

                    minor = -1;

                }

                if (currMinor > minor) {

                    minor = currMinor;

                    m_descriptor = list[i];

                }

            }

        }

    }

}

QObject* ServiceWrapper::serviceObject()

{

    findServiceInterface();

    if (serviceInstance) {

        return serviceInstance;

    }

    if (m_descriptor.isValid()) {

        QServiceManager manager;

        serviceInstance = manager.loadInterface(m_descriptor);

        return serviceInstance;

    } else {

        return 0;

    }

}

void ServiceWrapper::registerExampleServices()

{

    QStringList exampleXmlFiles;

    exampleXmlFiles << "notesmanagerservice.xml";

    foreach (const QString &fileName, exampleXmlFiles) {

        QString path = QCoreApplication::applicationDirPath() + "/xmldata/" + fileName;

        serviceManager->addService(path);

    }

}

void ServiceWrapper::unregisterExampleServices()

{

    serviceManager->removeService("NotesManagerService");

}