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// Copyright (C) 2021 Ford Motor Company
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QCONNECTIONFACTORIES_H
#define QCONNECTIONFACTORIES_H
//
// W A R N I N G
// -------------
//
// This file is part of the QtRO internal API and is not meant to be used
// in applications. It contains "internal" components, which are exported
// to allow new QIODevice channels to be added to extend QtRO. Usage of these
// APIs may make your code source and binary incompatible with future versions
// of Qt.
//
#include <QtNetwork/qabstractsocket.h>
#include <QtRemoteObjects/qtremoteobjectglobal.h>
#include <QtRemoteObjects/qremoteobjectnode.h>
QT_BEGIN_NAMESPACE
class QtROIoDeviceBasePrivate;
class QtROClientIoDevicePrivate;
class QtROExternalIoDevicePrivate;
class Q_REMOTEOBJECTS_EXPORT QtROIoDeviceBase : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(QtROIoDeviceBase)
public:
explicit QtROIoDeviceBase(QObject *parent = nullptr);
~QtROIoDeviceBase() override;
bool read(QtRemoteObjects::QRemoteObjectPacketTypeEnum &, QString &);
virtual void write(const QByteArray &data);
virtual void write(const QByteArray &data, qint64);
virtual bool isOpen() const;
virtual void close();
virtual qint64 bytesAvailable() const;
virtual QIODevice *connection() const = 0;
void initializeDataStream();
bool isClosing() const;
void addSource(const QString &);
void removeSource(const QString &);
QSet<QString> remoteObjects() const;
Q_SIGNALS:
void readyRead();
void disconnected();
protected:
explicit QtROIoDeviceBase(QtROIoDeviceBasePrivate &, QObject *parent);
virtual QString deviceType() const = 0;
virtual void doClose() = 0;
private:
Q_DECLARE_PRIVATE(QtROIoDeviceBase)
friend class QRemoteObjectNodePrivate;
friend class QConnectedReplicaImplementation;
friend class QRemoteObjectSourceIo;
};
class Q_REMOTEOBJECTS_EXPORT QtROServerIoDevice : public QtROIoDeviceBase
{
Q_OBJECT
Q_DISABLE_COPY(QtROServerIoDevice)
public:
explicit QtROServerIoDevice(QObject *parent = nullptr);
protected:
QString deviceType() const override;
};
class Q_REMOTEOBJECTS_EXPORT QConnectionAbstractServer : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(QConnectionAbstractServer)
public:
explicit QConnectionAbstractServer(QObject *parent = nullptr);
~QConnectionAbstractServer() override;
virtual bool hasPendingConnections() const = 0;
QtROServerIoDevice* 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 QtROServerIoDevice* configureNewConnection() = 0;
Q_SIGNALS:
void newConnection();
};
class Q_REMOTEOBJECTS_EXPORT QtROClientIoDevice : public QtROIoDeviceBase
{
Q_OBJECT
Q_DISABLE_COPY(QtROClientIoDevice)
public:
explicit QtROClientIoDevice(QObject *parent = nullptr);
~QtROClientIoDevice() override;
void disconnectFromServer();
virtual void connectToServer() = 0;
QUrl url() const;
Q_SIGNALS:
void shouldReconnect(QtROClientIoDevice*);
void setError(QRemoteObjectNode::ErrorCode);
protected:
virtual void doDisconnectFromServer() = 0;
QString deviceType() const override;
void setUrl(const QUrl &url);
private:
Q_DECLARE_PRIVATE(QtROClientIoDevice)
friend class QtROClientFactory;
};
class QtROServerFactory
{
public:
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);
};
}
bool isValid(const QUrl &url)
{
return m_creatorFuncs.contains(url.scheme());
}
private:
friend class QtROFactoryLoader;
QtROServerFactory();
using CreatorFunc = QConnectionAbstractServer * (*)(QObject *);
QHash<QString, CreatorFunc> m_creatorFuncs;
};
class QtROClientFactory
{
public:
Q_REMOTEOBJECTS_EXPORT static QtROClientFactory *instance();
/// creates an object from a string
QtROClientIoDevice *create(const QUrl &url, QObject *parent = nullptr)
{
auto creatorFunc = m_creatorFuncs.value(url.scheme());
if (!creatorFunc)
return nullptr;
QtROClientIoDevice *res = (*creatorFunc)(parent);
if (res)
res->setUrl(url);
return res;
}
template<typename T>
void registerType(const QString &id)
{
m_creatorFuncs[id] = [](QObject *parent) -> QtROClientIoDevice * {
return new T(parent);
};
}
bool isValid(const QUrl &url)
{
return m_creatorFuncs.contains(url.scheme());
}
private:
friend class QtROFactoryLoader;
QtROClientFactory();
using CreatorFunc = QtROClientIoDevice * (*)(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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