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/****************************************************************************
**
** Copyright (C) 2017-2015 Ford Motor Company
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtRemoteObjects module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QCONNECTIONFACTORIES_H
#define QCONNECTIONFACTORIES_H
#include <QAbstractSocket>
#include <QDataStream>
#include <QtRemoteObjects/qtremoteobjectglobal.h>
QT_BEGIN_NAMESPACE
//The Qt servers create QIODevice derived classes from handleConnection.
//The problem is that they behave differently, so this class adds some
//consistency.
class ServerIoDevice : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(ServerIoDevice)
public:
explicit ServerIoDevice(QObject *parent = nullptr);
virtual ~ServerIoDevice();
bool read(QtRemoteObjects::QRemoteObjectPacketTypeEnum &, QString &);
virtual void write(const QByteArray &data);
virtual void write(const QByteArray &data, qint64);
void close();
virtual qint64 bytesAvailable();
virtual QIODevice *connection() const = 0;
void initializeDataStream();
QDataStream& stream() { return m_dataStream; }
Q_SIGNALS:
void disconnected();
void readyRead();
protected:
virtual void doClose() = 0;
private:
bool m_isClosing;
quint32 m_curReadSize;
QDataStream m_dataStream;
};
class QConnectionAbstractServer : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(QConnectionAbstractServer)
public:
explicit QConnectionAbstractServer(QObject *parent = nullptr);
virtual ~QConnectionAbstractServer();
virtual bool hasPendingConnections() const = 0;
ServerIoDevice* nextPendingConnection();
virtual QUrl address() const = 0;
virtual bool listen(const QUrl &address) = 0;
virtual QAbstractSocket::SocketError serverError() const = 0;
virtual void close() = 0;
protected:
virtual ServerIoDevice* configureNewConnection() = 0;
Q_SIGNALS:
void newConnection();
};
class ClientIoDevice : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(ClientIoDevice)
public:
explicit ClientIoDevice(QObject *parent = nullptr);
virtual ~ClientIoDevice();
bool read(QtRemoteObjects::QRemoteObjectPacketTypeEnum &, QString &);
virtual void write(const QByteArray &data);
virtual void write(const QByteArray &data, qint64);
void close();
virtual void connectToServer() = 0;
virtual qint64 bytesAvailable();
QUrl url() const;
void addSource(const QString &);
void removeSource(const QString &);
QSet<QString> remoteObjects() const;
virtual bool isOpen() = 0;
virtual QIODevice *connection() = 0;
inline QDataStream& stream() { return m_dataStream; }
Q_SIGNALS:
void disconnected();
void readyRead();
void shouldReconnect(ClientIoDevice*);
protected:
virtual void doClose() = 0;
inline bool isClosing() { return m_isClosing; }
QDataStream m_dataStream;
private:
bool m_isClosing;
QUrl m_url;
private:
friend class QtROClientFactory;
quint32 m_curReadSize;
QSet<QString> m_remoteObjects;
};
class QtROServerFactory
{
public:
QtROServerFactory();
Q_REMOTEOBJECTS_EXPORT static QtROServerFactory *instance();
QConnectionAbstractServer *create(const QUrl &url, QObject *parent = nullptr)
{
auto creatorFunc = m_creatorFuncs.value(url.scheme());
return creatorFunc ? (*creatorFunc)(parent) : nullptr;
}
template<typename T>
void registerType(const QString &id)
{
m_creatorFuncs[id] = [](QObject *parent) -> QConnectionAbstractServer * {
return new T(parent);
};
}
private:
using CreatorFunc = QConnectionAbstractServer * (*)(QObject *);
QHash<QString, CreatorFunc> m_creatorFuncs;
};
class QtROClientFactory
{
public:
QtROClientFactory();
Q_REMOTEOBJECTS_EXPORT static QtROClientFactory *instance();
/// creates an object from a string
ClientIoDevice *create(const QUrl &url, QObject *parent = nullptr)
{
auto creatorFunc = m_creatorFuncs.value(url.scheme());
if (!creatorFunc)
return nullptr;
ClientIoDevice *res = (*creatorFunc)(parent);
if (res)
res->m_url = url;
return res;
}
template<typename T>
void registerType(const QString &id)
{
m_creatorFuncs[id] = [](QObject *parent) -> ClientIoDevice * {
return new T(parent);
};
}
private:
using CreatorFunc = ClientIoDevice * (*)(QObject *);
QHash<QString, CreatorFunc> m_creatorFuncs;
};
template <typename T>
inline void qRegisterRemoteObjectsClient(const QString &id)
{
QtROClientFactory::instance()->registerType<T>(id);
}
template <typename T>
inline void qRegisterRemoteObjectsServer(const QString &id)
{
QtROServerFactory::instance()->registerType<T>(id);
}
QT_END_NAMESPACE
#endif // QCONNECTIONFACTORIES_H
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