146 lines
3.4 KiB
C++
146 lines
3.4 KiB
C++
#include "PersistentData.h"
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#include <QFile>
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#include <QFileInfo>
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#include <QDir>
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#include <QDateTime>
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#include <QDataStream>
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#include <QDebug>
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PersistentData::PersistentData(const QString &datafileName, QObject *parent)
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: QObject(parent)
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, isChangedFlag(false)
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{
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// load persistant data, if available
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this->filename = datafileName;
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QFileInfo dataFileInfo(this->filename);
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QString dataFilePath = dataFileInfo.path();
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QDir dir;
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if ( ! dir.exists(dataFilePath)) {
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qCritical() << "Persistent data file does not exist!";
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qCritical() << " --> create new: " << this->filename;
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dir.mkpath(dataFilePath);
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}
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this->read();
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}
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void PersistentData::serializeToFile()
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{
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if (this->isChangedFlag) {
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qCritical() << "PersistentData::isChanged -> save";
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this->save();
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}
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}
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void PersistentData::save()
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{
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QFile fileOut(this->filename);
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if (fileOut.open(QIODevice::WriteOnly))
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{
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QDataStream out(&fileOut);
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out.setVersion(QDataStream::Qt_4_6);
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out << this->hash;
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fileOut.flush();
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fileOut.close();
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this->isChangedFlag = false;
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}
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}
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void PersistentData::read()
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{
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QFile fileIn(this->filename);
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if (fileIn.open(QIODevice::ReadOnly))
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{
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QDataStream in(&fileIn);
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in.setVersion(QDataStream::Qt_4_6);
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in >> hash;
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fileIn.close();
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}
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}
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QVariant PersistentData::getParameter(const QString & key) const {
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#if defined (ARCH_DesktopLinux)
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// note: QVariant.toString() returns empty string for custom types
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qDebug() << "VendingData::getParameter() key = " << key << " value = " << hash.value(key).toString();
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#endif
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return hash.value(key);
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}
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QVariant PersistentData::getParameter(const QString & key)
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{
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#if defined (ARCH_DesktopLinux)
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// note: QVariant.toString() returns empty string for custom types
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qDebug() << "VendingData::getParameter() key = " << key << " value = " << hash.value(key).toString();
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#endif
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return hash.value(key);
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}
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void PersistentData::setParameter(const QString & key, QVariant value)
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{
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this->isChangedFlag = true;
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#if defined (ARCH_DesktopLinux)
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// note: QVariant.toString() returns empty string for custom types
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qDebug() << "VendingData::setParameter() key = " << key << " value = " << value.toString();
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#endif
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this->hash.insert(key, value);
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}
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void PersistentData::clearParameter(const QString & key)
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{
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this->isChangedFlag = true;
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this->hash.remove(key);
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}
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bool PersistentData::hasParameter(const QString & key) const
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{
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return hash.contains(key);
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}
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uint PersistentData::getUintParameter(const QString & key) const
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{
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qDebug() << "PersistentData::getUintParameter() key = " << key << " value = " << hash.value(key).toString();
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uint returnValue = 0;
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bool ok;
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returnValue = hash.value(key).toString().toUInt(&ok);
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if (!ok) returnValue = 0;
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return returnValue;
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}
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QList<QString> PersistentData::uniqueKeys() const {
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return hash.uniqueKeys();
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}
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void PersistentData::setDCFirmwareVersion(const QString & fw_version)
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{
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// there must be a version string!
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if (fw_version.size() < 1) return;
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if (this->hash["dc_fw_version"].toString() != fw_version) {
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this->isChangedFlag = true;
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this->hash.insert("dc_fw_version", fw_version);
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}
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}
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QString PersistentData::getDCFirmwareVersion()
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{
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return this->hash["dc_fw_version"].toString();
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}
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