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

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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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

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** contained in the Technology Preview License Agreement accompanying

** this package.

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

#include "qsensorpluginloader_p.h"

#include <QtCore/qcoreapplication.h>

#include <QtCore/qdir.h>

#include <QtCore/qdebug.h>

#include "qsensorplugin.h"

#include "qmobilitypluginsearch.h"

QTM_BEGIN_NAMESPACE

QSensorPluginLoader::QSensorPluginLoader(const char *iid, const QString &location)

    : m_iid(iid)

{

    m_location = location + QLatin1String("/");

    load();

}

QSensorPluginLoader::~QSensorPluginLoader()

{

    Q_FOREACH (QPluginLoader *loader, m_loaders) {

        bool ok = loader->unload();

        if (!ok) qWarning() << "Cannot unload" << loader->fileName();

        delete loader;

    }

}

void QSensorPluginLoader::load()

{

    if (!m_plugins.isEmpty())

        return;

    QStringList plugins;

    plugins = mobilityPlugins(QLatin1String("sensors"));

    /* Now discover the dynamic plugins */

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

        QPluginLoader *loader = new QPluginLoader(plugins.at(i));

        QObject *o = loader->instance();

        if (o != 0 && o->qt_metacast(m_iid) != 0) {

            QSensorPluginInterface *p = qobject_cast<QSensorPluginInterface*>(o);

            if (p != 0) {

                m_plugins << p;

                m_loaders << loader;

            } else {

                loader->unload();

                delete loader;

            }

            continue;

        } else {

            qWarning() << "QSensorPluginLoader: Failed to load plugin: " << plugins.at(i) << loader->errorString();

        }

        delete o;

        loader->unload();

        delete loader;

    }

}

QTM_END_NAMESPACE