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Diffstat (limited to 'examples/opcua/opcuaviewer/common.cpp')
-rw-r--r-- | examples/opcua/opcuaviewer/common.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/examples/opcua/opcuaviewer/common.cpp b/examples/opcua/opcuaviewer/common.cpp new file mode 100644 index 0000000..833ad0b --- /dev/null +++ b/examples/opcua/opcuaviewer/common.cpp @@ -0,0 +1,106 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt OPC UA module. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "common.h" + +#include <QHash> +#include <QFile> +#include <QDebug> +#include <QString> + +QT_BEGIN_NAMESPACE + +DataTypeInfo dataTypeInfo(QString nodeId) +{ + static QHash<uint, DataTypeInfo> dataTypeInfoHash; + + if (dataTypeInfoHash.isEmpty()) { + QFile data(":/NodeIds.csv"); + if (!data.open(QFile::ReadOnly)) { + qFatal("Could not open %s", data.fileName().toLocal8Bit().constData()); + } + + do { + auto line = data.readLine(); + if (line.isEmpty()) + break; + auto token = line.split(','); + if (token.size() != 3) { + qWarning() << "Ignoring invalid node info line" << line; + continue; + } + + bool ok; + DataTypeInfo dti; + dti.name = token[0]; + dti.id = token[1].toUInt(&ok); + dti.type = token[2]; + + if (dti.name.size() == 0 || !ok || dti.type.size() == 0) { + qWarning() << "Ignoring invalid node info data" << token; + continue; + } + + dataTypeInfoHash.insert(dti.id, dti); + } while (true); + } + + QString prefix("ns=0;i="); + if (!nodeId.startsWith(prefix)) + return DataTypeInfo(); + + bool ok; + auto id = nodeId.mid(prefix.size()).toUInt(&ok); + if (!ok) + return DataTypeInfo(); + return dataTypeInfoHash[id]; +} + +QT_END_NAMESPACE |