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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 "qopen62541backend.h"
#include "qopen62541client.h"
#include "qopen62541node.h"
#include "qopen62541subscription.h"
#include "qopen62541utils.h"
#include "qopen62541valueconverter.h"
#include <private/qopcuaclient_p.h>
#include <private/qopcuahistoryreadresponseimpl_p.h>
#include <QtCore/qloggingcategory.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qthread.h>
#include <QtCore/qurl.h>
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(QT_OPCUA_PLUGINS_OPEN62541)
QOpen62541Client::QOpen62541Client(const QVariantMap &backendProperties)
: QOpcUaClientImpl()
, m_backend(new Open62541AsyncBackend(this))
{
bool ok = false;
const quint32 clientIterateInterval = backendProperties.value(QStringLiteral("clientIterateIntervalMs"), 50)
.toUInt(&ok);
if (ok)
m_backend->m_clientIterateInterval = clientIterateInterval;
const quint32 asyncRequestTimeout = backendProperties.value(QStringLiteral("asyncRequestTimeoutMs"), 15000)
.toUInt(&ok);
if (ok)
m_backend->m_asyncRequestTimeout = asyncRequestTimeout;
m_thread = new QThread();
m_thread->setObjectName("QOpen62541Client");
connectBackendWithClient(m_backend);
m_backend->moveToThread(m_thread);
connect(m_thread, &QThread::finished, m_thread, &QObject::deleteLater);
connect(m_thread, &QThread::finished, m_backend, &QObject::deleteLater);
m_thread->start();
}
QOpen62541Client::~QOpen62541Client()
{
if (m_thread->isRunning())
m_thread->quit();
}
void QOpen62541Client::connectToEndpoint(const QOpcUaEndpointDescription &endpoint)
{
QMetaObject::invokeMethod(m_backend, "connectToEndpoint", Qt::QueuedConnection,
Q_ARG(QOpcUaEndpointDescription, endpoint));
}
void QOpen62541Client::disconnectFromEndpoint()
{
QMetaObject::invokeMethod(m_backend, "disconnectFromEndpoint", Qt::QueuedConnection);
}
QOpcUaNode *QOpen62541Client::node(const QString &nodeId)
{
UA_NodeId uaNodeId = Open62541Utils::nodeIdFromQString(nodeId);
if (UA_NodeId_isNull(&uaNodeId))
return nullptr;
auto tempNode = new QOpen62541Node(uaNodeId, this, nodeId);
if (!tempNode->registered()) {
qCDebug(QT_OPCUA_PLUGINS_OPEN62541) << "Failed to register node with backend, maximum number of nodes reached.";
delete tempNode;
return nullptr;
}
return new QOpcUaNode(tempNode, m_client);
}
QString QOpen62541Client::backend() const
{
return QStringLiteral("open62541");
}
bool QOpen62541Client::requestEndpoints(const QUrl &url)
{
return QMetaObject::invokeMethod(m_backend, "requestEndpoints", Qt::QueuedConnection, Q_ARG(QUrl, url));
}
bool QOpen62541Client::findServers(const QUrl &url, const QStringList &localeIds, const QStringList &serverUris)
{
return QMetaObject::invokeMethod(m_backend, "findServers", Qt::QueuedConnection,
Q_ARG(QUrl, url),
Q_ARG(QStringList, localeIds),
Q_ARG(QStringList, serverUris));
}
bool QOpen62541Client::readNodeAttributes(const QList<QOpcUaReadItem> &nodesToRead)
{
return QMetaObject::invokeMethod(m_backend, "readNodeAttributes", Qt::QueuedConnection,
Q_ARG(QList<QOpcUaReadItem>, nodesToRead));
}
bool QOpen62541Client::writeNodeAttributes(const QList<QOpcUaWriteItem> &nodesToWrite)
{
return QMetaObject::invokeMethod(m_backend, "writeNodeAttributes", Qt::QueuedConnection,
Q_ARG(QList<QOpcUaWriteItem>, nodesToWrite));
}
QOpcUaHistoryReadResponse *QOpen62541Client::readHistoryData(const QOpcUaHistoryReadRawRequest &request)
{
if (!m_client)
return nullptr;
auto impl = new QOpcUaHistoryReadResponseImpl(request);
auto result = new QOpcUaHistoryReadResponse(impl);
// Connect signals
QObject::connect(m_backend, &QOpcUaBackend::historyDataAvailable, impl, &QOpcUaHistoryReadResponseImpl::handleDataAvailable);
QObject::connect(impl, &QOpcUaHistoryReadResponseImpl::historyReadRawRequested, this, &QOpen62541Client::handleHistoryReadRawRequested);
QObject::connect(this, &QOpen62541Client::historyReadRequestError, impl, &QOpcUaHistoryReadResponseImpl::handleRequestError);
auto success = handleHistoryReadRawRequested(request, {}, false, impl->handle());
if (!success) {
delete result;
return nullptr;
}
return result;
}
bool QOpen62541Client::addNode(const QOpcUaAddNodeItem &nodeToAdd)
{
return QMetaObject::invokeMethod(m_backend, "addNode", Qt::QueuedConnection,
Q_ARG(QOpcUaAddNodeItem, nodeToAdd));
}
bool QOpen62541Client::deleteNode(const QString &nodeId, bool deleteTargetReferences)
{
return QMetaObject::invokeMethod(m_backend, "deleteNode", Qt::QueuedConnection,
Q_ARG(QString, nodeId),
Q_ARG(bool, deleteTargetReferences));
}
bool QOpen62541Client::addReference(const QOpcUaAddReferenceItem &referenceToAdd)
{
return QMetaObject::invokeMethod(m_backend, "addReference", Qt::QueuedConnection,
Q_ARG(QOpcUaAddReferenceItem, referenceToAdd));
}
bool QOpen62541Client::deleteReference(const QOpcUaDeleteReferenceItem &referenceToDelete)
{
return QMetaObject::invokeMethod(m_backend, "deleteReference", Qt::QueuedConnection,
Q_ARG(QOpcUaDeleteReferenceItem, referenceToDelete));
}
QStringList QOpen62541Client::supportedSecurityPolicies() const
{
return QStringList {
"http://opcfoundation.org/UA/SecurityPolicy#None"
#ifdef UA_ENABLE_ENCRYPTION
, "http://opcfoundation.org/UA/SecurityPolicy#Basic128Rsa15"
, "http://opcfoundation.org/UA/SecurityPolicy#Basic256"
, "http://opcfoundation.org/UA/SecurityPolicy#Basic256Sha256"
#endif
};
}
QList<QOpcUaUserTokenPolicy::TokenType> QOpen62541Client::supportedUserTokenTypes() const
{
return QList<QOpcUaUserTokenPolicy::TokenType> {
QOpcUaUserTokenPolicy::TokenType::Anonymous,
QOpcUaUserTokenPolicy::TokenType::Username
};
}
bool QOpen62541Client::handleHistoryReadRawRequested(const QOpcUaHistoryReadRawRequest &request, const QList<QByteArray> &continuationPoints,
bool releaseContinuationPoints, quint64 handle)
{
const auto success = QMetaObject::invokeMethod(m_backend, "readHistoryRaw",
Qt::QueuedConnection,
Q_ARG(QOpcUaHistoryReadRawRequest, request),
Q_ARG(QList<QByteArray>, continuationPoints),
Q_ARG(bool, releaseContinuationPoints),
Q_ARG(quint64, handle));
if (!success)
emit historyReadRequestError(handle);
return success;
}
QT_END_NAMESPACE
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