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/****************************************************************************
**
** Copyright (C) 2021 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 "qopcuahistoryreadresponseimpl_p.h"
QT_BEGIN_NAMESPACE
quint64 QOpcUaHistoryReadResponseImpl::m_currentHandle = 0;
QOpcUaHistoryReadResponseImpl::QOpcUaHistoryReadResponseImpl(const QOpcUaHistoryReadRawRequest &request)
: m_requestType(RequestType::ReadRaw)
, m_readRawRequest(request)
, m_handle(++m_currentHandle)
{
}
QOpcUaHistoryReadResponseImpl::~QOpcUaHistoryReadResponseImpl()
{
releaseContinuationPoints();
}
bool QOpcUaHistoryReadResponseImpl::hasMoreData() const
{
return m_state == QOpcUaHistoryReadResponse::State::MoreDataAvailable;
}
bool QOpcUaHistoryReadResponseImpl::readMoreData()
{
if (!hasMoreData())
return false;
if (m_requestType == RequestType::ReadRaw) {
QOpcUaHistoryReadRawRequest request;
request.setStartTimestamp(m_readRawRequest.startTimestamp());
request.setEndTimestamp(m_readRawRequest.endTimestamp());
request.setNumValuesPerNode(m_readRawRequest.numValuesPerNode());
request.setReturnBounds(m_readRawRequest.returnBounds());
int arrayIndex = 0;
QList<int> newDataMapping;
QList<QByteArray> newContinuationPoints;
for (const auto &continuationPoint : m_continuationPoints) {
int mappingIndex = 0;
if (m_dataMapping.empty())
mappingIndex = arrayIndex;
else
mappingIndex = m_dataMapping.at(arrayIndex);
if (!continuationPoint.isEmpty()) {
newDataMapping.push_back(mappingIndex);
newContinuationPoints.push_back(continuationPoint);
request.addNodeToRead(m_readRawRequest.nodesToRead().at(mappingIndex));
}
++arrayIndex;
}
m_dataMapping = newDataMapping;
m_continuationPoints = newContinuationPoints;
emit historyReadRawRequested(request, m_continuationPoints, false, handle());
return true;
}
return false;
}
QOpcUaHistoryReadResponse::State QOpcUaHistoryReadResponseImpl::state() const
{
return m_state;
}
bool QOpcUaHistoryReadResponseImpl::releaseContinuationPoints()
{
if (m_requestType == RequestType::ReadRaw) {
emit historyReadRawRequested(m_readRawRequest, m_continuationPoints, true, handle());
setState(QOpcUaHistoryReadResponse::State::Finished);
};
return true;
}
QList<QOpcUaHistoryData> QOpcUaHistoryReadResponseImpl::data() const
{
return m_data;
}
QOpcUa::UaStatusCode QOpcUaHistoryReadResponseImpl::serviceResult() const
{
return m_serviceResult;
}
void QOpcUaHistoryReadResponseImpl::handleDataAvailable(const QList<QOpcUaHistoryData> &data, const QList<QByteArray> &continuationPoints,
QOpcUa::UaStatusCode serviceResult, quint64 responseHandle)
{
if (responseHandle != handle())
return;
m_serviceResult = serviceResult;
m_continuationPoints = continuationPoints;
if (m_data.empty()) {
m_data = data;
} else {
int index = 0;
for (const auto &result : data) {
auto &target = m_data[m_dataMapping.at(index++)];
target.setStatusCode(result.statusCode());
for (const auto &value : result.result()) {
target.resultRef().append(value);
}
}
}
bool found = false;
for (const auto &continuationPoint : m_continuationPoints) {
if (!continuationPoint.isEmpty()) {
setState(QOpcUaHistoryReadResponse::State::MoreDataAvailable);
found = true;
break;
}
}
if (!found)
setState(QOpcUaHistoryReadResponse::State::Finished);
emit readHistoryDataFinished(m_data, m_serviceResult);
}
void QOpcUaHistoryReadResponseImpl::handleRequestError(quint64 requestHandle)
{
if (requestHandle == handle())
setState(QOpcUaHistoryReadResponse::State::Error);
}
quint64 QOpcUaHistoryReadResponseImpl::handle() const
{
return m_handle;
}
void QOpcUaHistoryReadResponseImpl::setState(QOpcUaHistoryReadResponse::State state)
{
if (m_state != state) {
m_state = state;
emit stateChanged(state);
}
}
QT_END_NAMESPACE
|
