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/****************************************************************************
**
** Copyright (C) 2015 basysKom GmbH, opensource@basyskom.com
** 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 "qfreeopcuaclient.h"
#include "qfreeopcuanode.h"
#include "qfreeopcuasubscription.h"
#include "qfreeopcuavalueconverter.h"
#include <QtOpcUa/qopcuamonitoredvalue.h>
#include <QtOpcUa/qopcuasubscription.h>
#include <private/qopcuamonitoredevent_p.h>
#include <private/qopcuamonitoredvalue_p.h>
#include <private/qopcuanode_p.h>
#include <QtCore/qloggingcategory.h>
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(QT_OPCUA_PLUGINS_FREEOPCUA)
QFreeOpcUaSubscription::QFreeOpcUaSubscription(OpcUa::UaClient *client, quint32 interval)
: m_client(client)
{
Q_ASSERT(m_client);
try {
m_subscription = m_client->CreateSubscription(interval, *this);
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
}
QFreeOpcUaSubscription::~QFreeOpcUaSubscription()
{
try {
if (m_subscription) {
for (int32_t handle : m_dataChangeHandles.keys())
m_subscription->UnSubscribe(handle);
for (int32_t handle : m_eventHandles.keys())
m_subscription->UnSubscribe(handle);
m_subscription->Delete();
}
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
}
void QFreeOpcUaSubscription::DataChange(quint32 handle, const OpcUa::Node &node,
const OpcUa::Variant &val,
OpcUa::AttributeId attr)
{
OPCUA_UNUSED(node);
OPCUA_UNUSED(attr);
auto it = m_dataChangeHandles.find(handle);
if (it == m_dataChangeHandles.end()) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Received event for unknown handle: %ul", handle);
return;
}
try {
(*it)->d_func()->triggerValueChanged(QFreeOpcUaValueConverter::toQVariant(val));
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
}
QOpcUaMonitoredValue *QFreeOpcUaSubscription::addValue(QOpcUaNode *node)
{
if (!m_subscription)
return nullptr;
try {
// Only add a monitored item if the node has a value attribute
QFreeOpcUaNode *nnode = static_cast<QFreeOpcUaNode *>(node->d_func()->m_impl.data());
if (nnode->m_node.GetAttribute(OpcUa::AttributeId::Value).Status != OpcUa::StatusCode::Good)
return nullptr;
if (m_subscription) {
uint32_t handle = m_subscription->SubscribeDataChange(m_client->GetNode(node->nodeId().toStdString()));
QOpcUaMonitoredValue *monitoredValue = new QOpcUaMonitoredValue(node, m_qsubscription);
m_dataChangeHandles[handle] = monitoredValue;
return monitoredValue;
}
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
return nullptr;
}
void QFreeOpcUaSubscription::Event(quint32 handle, const OpcUa::Event &event)
{
auto it = m_eventHandles.find(handle);
if (it == m_eventHandles.end()) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA) << "Received event for unknown handle:" << handle;
return;
}
try {
QVector<QVariant> val;
val.reserve(3);
val.push_back(QVariant(QString::fromStdString(event.Message.Text)));
val.push_back(QVariant(QString::fromStdString(event.SourceName)));
val.push_back(QVariant(event.Severity));
QOpcUaMonitoredEvent *me = *it;
me->d_func()->triggerNewEvent(val);
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
}
QOpcUaMonitoredEvent *QFreeOpcUaSubscription::addEvent(QOpcUaNode *node)
{
// Note: Callback is not called due to some error in the event implementation in freeopcua
if (!m_subscription)
return nullptr;
try {
QFreeOpcUaNode *nnode = static_cast<QFreeOpcUaNode *>(node->d_func()->m_impl.data());
if (nnode->m_node.GetAttribute(OpcUa::AttributeId::EventNotifier).Status != OpcUa::StatusCode::Good)
return nullptr;
OpcUa::Node serverNode = m_client->GetNode(OpcUa::ObjectId::Server);
OpcUa::Node typeNode = m_client->GetNode(node->nodeId().toStdString());
uint32_t handle = m_subscription->SubscribeEvents(serverNode, typeNode);
QOpcUaMonitoredEvent *monitoredEvent = new QOpcUaMonitoredEvent(node, m_qsubscription);
m_eventHandles[handle] = monitoredEvent;
return monitoredEvent;
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
return nullptr;
}
void QFreeOpcUaSubscription::removeEvent(QOpcUaMonitoredEvent *event)
{
try {
auto it = m_eventHandles.begin();
while (it != m_eventHandles.end()) {
if (it.value() == event) {
m_subscription->UnSubscribe(it.key());
m_eventHandles.erase(it);
break;
}
++it;
}
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
}
void QFreeOpcUaSubscription::removeValue(QOpcUaMonitoredValue *value)
{
try {
auto it = m_dataChangeHandles.begin();
while (it != m_dataChangeHandles.end()) {
if (it.value() == value) {
m_subscription->UnSubscribe(it.key());
m_dataChangeHandles.erase(it);
break;
}
++it;
}
} catch (const std::exception &ex) {
qCWarning(QT_OPCUA_PLUGINS_FREEOPCUA, "Caught: %s", ex.what());
}
}
QT_END_NAMESPACE
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