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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt OPC UA module.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
#include <QObject>
#include "universalnode.h"
#include "opcuaattributecache.h"
#include "qopcualocalizedtext.h"
#include <QDateTime>
QT_BEGIN_NAMESPACE
class QOpcUaNode;
class OpcUaConnection;
class OpcUaNodeIdType;
class OpcUaNode : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(OpcUaNode)
Q_CLASSINFO("RegisterEnumClassesUnscoped", "false")
Q_PROPERTY(OpcUaNodeIdType* nodeId READ nodeId WRITE setNodeId NOTIFY nodeIdChanged)
Q_PROPERTY(OpcUaConnection* connection READ connection WRITE setConnection NOTIFY connectionChanged)
Q_PROPERTY(bool readyToUse READ readyToUse NOTIFY readyToUseChanged)
Q_PROPERTY(OpcUaNode::Status status READ status NOTIFY statusChanged)
Q_PROPERTY(QString errorMessage READ errorMessage NOTIFY errorMessageChanged)
// basic node properties
Q_PROPERTY(QString browseName READ browseName WRITE setBrowseName NOTIFY browseNameChanged)
Q_PROPERTY(QOpcUa::NodeClass nodeClass READ nodeClass NOTIFY nodeClassChanged)
Q_PROPERTY(QOpcUaLocalizedText displayName READ displayName WRITE setDisplayName NOTIFY displayNameChanged)
Q_PROPERTY(QOpcUaLocalizedText description READ description WRITE setDescription NOTIFY descriptionChanged)
Q_ENUM(QOpcUa::NodeClass);
public:
enum class Status {
Valid,
InvalidNodeId,
NoConnection,
InvalidNodeType,
InvalidClient,
FailedToResolveNode,
InvalidObjectNode,
FailedToReadAttributes,
FailedToSetupMonitoring,
FailedToWriteAttribute,
FailedToModifyMonitoring,
FailedToDisableMonitoring
};
Q_ENUM(Status);
OpcUaNode(QObject *parent = nullptr);
~OpcUaNode();
OpcUaNodeIdType *nodeId() const;
OpcUaConnection *connection();
bool readyToUse() const;
void setBrowseName(const QString &value);
QString browseName();
QOpcUa::NodeClass nodeClass();
void setDisplayName(const QOpcUaLocalizedText &value);
QOpcUaLocalizedText displayName();
void setDescription(const QOpcUaLocalizedText &value);
QOpcUaLocalizedText description();
OpcUaNode::Status status() const;
const QString &errorMessage() const;
Q_INVOKABLE QDateTime getSourceTimestamp(QOpcUa::NodeAttribute) const;
Q_INVOKABLE QDateTime getServerTimestamp(QOpcUa::NodeAttribute) const;
// This function is not exposed to QML
const UniversalNode &resolvedNode() const;
// This function is not exposed to QML
QOpcUaNode* node() const;
public slots:
void setNodeId(OpcUaNodeIdType *nodeId);
void setConnection(OpcUaConnection *);
signals:
void nodeIdChanged(const OpcUaNodeIdType *nodeId);
void connectionChanged(OpcUaConnection *);
void nodeChanged();
void readyToUseChanged();
void browseNameChanged();
void nodeClassChanged();
void displayNameChanged();
void descriptionChanged();
void statusChanged();
void errorMessageChanged();
protected slots:
virtual void setupNode(const QString &absoluteNodePath);
void updateNode();
protected:
void setStatus(Status status, const QString &message = QString());
void setAttributesToRead(QOpcUa::NodeAttributes attributes);
QOpcUa::NodeAttributes attributesToRead() const;
void retrieveAbsoluteNodePath(OpcUaNodeIdType *, std::function<void (const QString &)>);
void setReadyToUse(bool value = true);
virtual bool checkValidity();
OpcUaNodeIdType *m_nodeId = nullptr;
QOpcUaNode *m_node = nullptr;
OpcUaConnection *m_connection = nullptr;
QString m_absoluteNodePath; // not exposed
bool m_readyToUse = false;
UniversalNode m_resolvedNode;
OpcUaAttributeCache m_attributeCache;
QOpcUa::NodeAttributes m_attributesToRead;
Status m_status;
QString m_errorMessage;
};
QT_END_NAMESPACE
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