CTextFileLogComp.h

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/********************************************************************************
**  This file is part of the ICF Framework. Copyright (C) Witold Gantzke & Kirill Lepskiy
**  ICF Framework may be used under the terms of the LGPL License v. 2.1 by the Free Software Foundation.
********************************************************************************/
 
#pragma once
 
 
// Qt includes
#include <QtCore/QFile>
#include <QtCore/QReadWriteLock>
#include <QtCore/QTextStream>
 
// ICF includes
#include <imod/IModel.h>
#include <imod/CSingleModelObserverBase.h>
#include <ifile/IFileNameParam.h>
#include <ilog/CStreamLogCompBase.h>
 
 
namespace ifile
{
 
 
class CTextFileLogComp: public ilog::CStreamLogCompBase
{
public:
    typedef ilog::CStreamLogCompBase BaseClass;
 
    I_BEGIN_COMPONENT(CTextFileLogComp);
        I_ASSIGN(m_fileNameCompPtr, "LogFile", "Name of the log file", true, "LogFile");
        I_ASSIGN_TO(m_fileNameModelCompPtr, m_fileNameCompPtr, true);
        I_ASSIGN(m_isAppendAttrPtr, "AppendToExisting", "Don't overwrite existing log file", true, false);
    I_END_COMPONENT;
 
    CTextFileLogComp();
 
protected:
    // reimplemented (CStreamLogCompBase)
    void WriteText(const QString& text, istd::IInformationProvider::InformationCategory category) override;
 
    // reimplemented (icomp::CComponentBase)
    void OnComponentCreated() override;
    void OnComponentDestroyed() override;
 
private:
    void OpenFileStream();
    void CloseFileStream();
 
private:
    I_REF(ifile::IFileNameParam, m_fileNameCompPtr);
    I_REF(imod::IModel, m_fileNameModelCompPtr);
    I_ATTR(bool, m_isAppendAttrPtr);
 
    QFile m_outputFile;
    QTextStream m_outputFileStream;
 
    class FilePathObserver: public imod::CSingleModelObserverBase
    {
    public:
        typedef imod::CSingleModelObserverBase BaseClass;
 
        explicit FilePathObserver(CTextFileLogComp& parent);
 
    protected:
        // reimplemented (imod::CSingleModelObserverBase)
        void OnUpdate(const istd::IChangeable::ChangeSet& changeSet) override;
 
    private:
        CTextFileLogComp& m_parent;
    };
 
    FilePathObserver m_filePathObserver;
 
    QReadWriteLock m_mutex;
};
 
 
} // namespace ifile