380 lines
12 KiB
C++
380 lines
12 KiB
C++
/************************************************************************
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**
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** @file vabstractconverter.cpp
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 10 12, 2014
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**
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** @brief
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** @copyright
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** This source code is part of the Valentina project, a pattern making
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** program, whose allow create and modeling patterns of clothing.
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** Copyright (C) 2013-2015 Valentina project
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** <https://bitbucket.org/dismine/valentina> All Rights Reserved.
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**
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** Valentina is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** Valentina is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
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*************************************************************************/
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#include "vabstractconverter.h"
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#include <QAbstractMessageHandler>
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#include <QDir>
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#include <QDomElement>
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#include <QDomNode>
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#include <QDomNodeList>
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#include <QFile>
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#include <QFileInfo>
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#include <QLatin1String>
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#include <QMap>
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#include <QRegularExpression>
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#include <QRegularExpressionMatch>
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#include <QSourceLocation>
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#include <QStaticStringData>
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#include <QStringData>
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#include <QStringDataPtr>
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#include <QStringList>
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#include <QTextDocument>
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#include <QXmlSchema>
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#include <QXmlSchemaValidator>
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#include "../exception/vexception.h"
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#include "../exception/vexceptionwrongid.h"
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#include "vdomdocument.h"
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//This class need for validation pattern file using XSD shema
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class MessageHandler : public QAbstractMessageHandler
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{
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public:
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MessageHandler()
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: QAbstractMessageHandler(),
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m_messageType(QtMsgType()),
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m_description(),
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m_sourceLocation(QSourceLocation())
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{}
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QString statusMessage() const;
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qint64 line() const;
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qint64 column() const;
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protected:
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// cppcheck-suppress unusedFunction
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virtual void handleMessage(QtMsgType type, const QString &description,
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const QUrl &identifier, const QSourceLocation &sourceLocation) override;
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private:
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QtMsgType m_messageType;
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QString m_description;
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QSourceLocation m_sourceLocation;
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};
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//---------------------------------------------------------------------------------------------------------------------
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QString MessageHandler::statusMessage() const
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{
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QTextDocument doc;
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doc.setHtml(m_description);
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return doc.toPlainText();
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}
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//---------------------------------------------------------------------------------------------------------------------
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inline qint64 MessageHandler::line() const
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{
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return m_sourceLocation.line();
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}
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//---------------------------------------------------------------------------------------------------------------------
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inline qint64 MessageHandler::column() const
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{
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return m_sourceLocation.column();
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}
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//---------------------------------------------------------------------------------------------------------------------
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// cppcheck-suppress unusedFunction
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void MessageHandler::handleMessage(QtMsgType type, const QString &description, const QUrl &identifier,
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const QSourceLocation &sourceLocation)
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{
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Q_UNUSED(type)
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Q_UNUSED(identifier)
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m_messageType = type;
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m_description = description;
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m_sourceLocation = sourceLocation;
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}
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//---------------------------------------------------------------------------------------------------------------------
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VAbstractConverter::VAbstractConverter(const QString &fileName)
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: VDomDocument(),
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m_ver(0x0),
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m_originalFileName(fileName),
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m_convertedFileName(fileName),
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m_tmpFile()
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{
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setXMLContent(m_convertedFileName);// Throw an exception on error
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m_ver = GetFormatVersion(GetFormatVersionStr());
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}
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//---------------------------------------------------------------------------------------------------------------------
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QString VAbstractConverter::Convert()
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{
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if (m_ver == MaxVer())
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{
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return m_convertedFileName;
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}
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if (not IsReadOnly())
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{
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ReserveFile();
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}
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if (m_tmpFile.open())
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{
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m_convertedFileName = m_tmpFile.fileName();
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}
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else
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{
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throw VException(tr("Error openning a temp file: %1.").arg(m_tmpFile.errorString()));
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}
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m_ver < MaxVer() ? ApplyPatches() : DowngradeToCurrentMaxVersion();
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return m_convertedFileName;
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}
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//---------------------------------------------------------------------------------------------------------------------
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int VAbstractConverter::GetCurrentFormatVersion() const
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{
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return m_ver;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractConverter::ReserveFile() const
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{
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//It's not possible in all cases make conversion without lose data.
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//For such cases we will store old version in a reserve file.
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QString error;
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QFileInfo info(m_convertedFileName);
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const QString reserveFileName = QString("%1/%2(v%3).%4.bak")
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.arg(info.absoluteDir().absolutePath(), info.baseName(), GetFormatVersionStr(), info.completeSuffix());
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if (not SafeCopy(m_convertedFileName, reserveFileName, error))
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{
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#ifdef Q_OS_WIN32
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qt_ntfs_permission_lookup++; // turn checking on
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#endif /*Q_OS_WIN32*/
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const bool isFileWritable = info.isWritable();
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#ifdef Q_OS_WIN32
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qt_ntfs_permission_lookup--; // turn it off again
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#endif /*Q_OS_WIN32*/
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if (not IsReadOnly() && isFileWritable)
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{
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const QString errorMsg(tr("Error creating a reserv copy: %1.").arg(error));
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throw VException(errorMsg);
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}
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}
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractConverter::Replace(QString &formula, const QString &newName, int position, const QString &token,
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int &bias) const
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{
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formula.replace(position, token.length(), newName);
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bias = token.length() - newName.length();
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractConverter::CorrectionsPositions(int position, int bias, QMap<int, QString> &tokens) const
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{
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if (bias == 0)
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{
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return;// Nothing to correct;
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}
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BiasTokens(position, bias, tokens);
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractConverter::BiasTokens(int position, int bias, QMap<int, QString> &tokens)
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{
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QMap<int, QString> newTokens;
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QMap<int, QString>::const_iterator i = tokens.constBegin();
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while (i != tokens.constEnd())
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{
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if (i.key()<= position)
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{ // Tokens before position "position" did not change his positions.
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newTokens.insert(i.key(), i.value());
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}
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else
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{
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newTokens.insert(i.key()-bias, i.value());
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}
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++i;
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}
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tokens = newTokens;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief ValidateXML validate xml file by xsd schema.
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* @param schema path to schema file.
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*/
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void VAbstractConverter::ValidateXML(const QString &schema) const
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{
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qCDebug(vXML, "Validation xml file %s.", qUtf8Printable(m_convertedFileName));
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QFile pattern(m_convertedFileName);
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if (not pattern.open(QIODevice::ReadOnly))
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{
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const QString errorMsg(tr("Can't open file %1:\n%2.").arg(m_convertedFileName, pattern.errorString()));
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throw VException(errorMsg);
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}
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QFile fileSchema(schema);
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if (not fileSchema.open(QIODevice::ReadOnly))
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{
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pattern.close();
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const QString errorMsg(tr("Can't open schema file %1:\n%2.").arg(schema, fileSchema.errorString()));
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throw VException(errorMsg);
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}
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MessageHandler messageHandler;
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QXmlSchema sch;
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sch.setMessageHandler(&messageHandler);
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if (sch.load(&fileSchema, QUrl::fromLocalFile(fileSchema.fileName()))==false)
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{
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pattern.close();
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fileSchema.close();
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VException e(messageHandler.statusMessage());
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e.AddMoreInformation(tr("Could not load schema file '%1'.").arg(fileSchema.fileName()));
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throw e;
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}
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qCDebug(vXML, "Schema loaded.");
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bool errorOccurred = false;
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if (sch.isValid() == false)
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{
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errorOccurred = true;
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}
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else
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{
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QXmlSchemaValidator validator(sch);
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if (validator.validate(&pattern, QUrl::fromLocalFile(pattern.fileName())) == false)
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{
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errorOccurred = true;
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}
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}
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if (errorOccurred)
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{
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pattern.close();
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fileSchema.close();
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VException e(messageHandler.statusMessage());
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e.AddMoreInformation(tr("Validation error file %3 in line %1 column %2").arg(messageHandler.line())
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.arg(messageHandler.column()).arg(m_originalFileName));
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throw e;
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}
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pattern.close();
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fileSchema.close();
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}
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//---------------------------------------------------------------------------------------------------------------------
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Q_NORETURN void VAbstractConverter::InvalidVersion(int ver) const
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{
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if (ver < MinVer())
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{
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const QString errorMsg(tr("Invalid version. Minimum supported format version is %1").arg(MinVerStr()));
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throw VException(errorMsg);
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}
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if (ver > MaxVer())
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{
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const QString errorMsg(tr("Invalid version. Maximum supported format version is %1").arg(MaxVerStr()));
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throw VException(errorMsg);
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}
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const QString errorMsg(tr("Unexpected version \"%1\".").arg(ver, 0, 16));
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throw VException(errorMsg);
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractConverter::ValidateInputFile(const QString ¤tSchema) const
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{
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QString schema;
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try
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{
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schema = XSDSchema(m_ver);
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}
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catch(const VException &e)
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{
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if (m_ver < MinVer())
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{ // Version less than minimally supported version. Can't do anything.
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throw;
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}
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else if (m_ver > MaxVer())
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{ // Version bigger than maximum supported version. We still have a chance to open the file.
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try
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{ // Try to open like the current version.
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ValidateXML(currentSchema);
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}
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catch(const VException &exp)
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{ // Nope, we can't.
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Q_UNUSED(exp)
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throw e;
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}
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}
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else
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{ // Unexpected version. Most time mean that we do not catch all versions between min and max.
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throw;
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}
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return; // All is fine and we can try to convert to current max version.
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}
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ValidateXML(schema);
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractConverter::Save()
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{
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try
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{
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TestUniqueId();
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}
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catch (const VExceptionWrongId &e)
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{
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Q_UNUSED(e)
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VException ex(tr("Error no unique id."));
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throw ex;
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}
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m_tmpFile.resize(0);//clear previous content
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const int indent = 4;
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QTextStream out(&m_tmpFile);
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out.setCodec("UTF-8");
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save(out, indent);
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if (not m_tmpFile.flush())
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{
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VException e(m_tmpFile.errorString());
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throw e;
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}
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAbstractConverter::SetVersion(const QString &version)
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{
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ValidateVersion(version);
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if (setTagText(TagVersion, version) == false)
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{
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VException e(tr("Could not change version."));
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throw e;
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}
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}
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