fileloader.h

#ifndef FILELOADER_H
#define FILELOADER_H
#include "QFileInfo"
#include "icacheitem.h"
#include "DataAllocator.h"
#include <iostream>
#include <fstream>


class FileLoader {
public:
    FileLoader() { }
    virtual ~FileLoader() { }

    void SetFileInfo(const QFileInfo & fileInfo) {
        this->fileInfo = fileInfo;
    }

    const std::wstring GetFullPath() const {
        return fileInfo.absoluteFilePath().toStdWString();
    }

//protected:
    void LoadIntoMemory() {
        std::ifstream file(GetFullPath(), std::ios::in | std::ios::binary);
        if (!file.is_open()) {
            throw new std::invalid_argument("Nemohu otevrit soubor");
        }
        int fileSize = GetFileSize(file);
        FileData.AllocateDataMemory(fileSize);
        std::shared_ptr<char> dataBuffer = FileData.GetAllocatedMemory();
        file.read(dataBuffer.get(), fileSize);
        file.close();
    }

    void ClearMemory() {
        std::cout << "FileDelete" << std::endl;
        FileData.FreeAllocatedMemory();
    }

    DataAllocator FileData;

private:
    int GetFileSize(std::ifstream & ifstream_) {
        ifstream_.seekg(0, std::ios::end);
        std::streamoff size = ifstream_.tellg();
        ifstream_.seekg(0);
        return static_cast<int>(size);
    }

    QFileInfo fileInfo;
};


#endif // FILELOADER_H