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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtOpcUa module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qopen62541client.h"
#include "qopen62541subscription.h"
#include <private/qopcuabackend_p.h>
#include <QtCore/qset.h>
#include <QtCore/qstring.h>
#include <QtCore/qtimer.h>
QT_BEGIN_NAMESPACE
class QOpen62541Node;
class Open62541AsyncBackend : public QOpcUaBackend
{
Q_OBJECT
public:
Open62541AsyncBackend(QOpen62541Client *parent);
~Open62541AsyncBackend();
public Q_SLOTS:
void connectToEndpoint(const QUrl &url);
void disconnectFromEndpoint();
// Node functions
QStringList childrenIds(const UA_NodeId *parentNode);
void readAttributes(uintptr_t handle, UA_NodeId id, QOpcUaNode::NodeAttributes attr);
void writeAttribute(uintptr_t handle, UA_NodeId id, QOpcUaNode::NodeAttribute attrId, QVariant value, QOpcUa::Types type);
void writeAttributes(uintptr_t handle, UA_NodeId id, QOpcUaNode::AttributeMap toWrite, QOpcUa::Types valueAttributeType);
void enableMonitoring(uintptr_t handle, UA_NodeId id, QOpcUaNode::NodeAttributes attr, const QOpcUaMonitoringParameters &settings);
void disableMonitoring(uintptr_t handle, QOpcUaNode::NodeAttributes attr);
void modifyMonitoring(uintptr_t handle, QOpcUaNode::NodeAttribute attr, QOpcUaMonitoringParameters::Parameter item, QVariant value);
// Subscription
QOpen62541Subscription *getSubscription(const QOpcUaMonitoringParameters &settings);
bool removeSubscription(UA_UInt32 subscriptionId);
void sendPublishRequest();
void modifyPublishRequests();
public:
UA_Client *m_uaclient;
private:
QOpen62541Subscription *getSubscriptionForItem(uintptr_t handle, QOpcUaNode::NodeAttribute attr);
QOpen62541Client *m_clientImpl;
QTimer m_subscriptionTimer;
QHash<quint32, QOpen62541Subscription *> m_subscriptions;
QHash<uintptr_t, QHash<QOpcUaNode::NodeAttribute, QOpen62541Subscription *>> m_attributeMapping; // Handle -> Attribute -> Subscription
bool m_sendPublishRequests;
qint32 m_shortestInterval;
};
QT_END_NAMESPACE
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