file_handler_base.h

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// SPDX-FileCopyrightText: 2024 <copyright holder> <email>
// SPDX-License-Identifier: Apache-2.0
 
#ifndef FILE_HANDLER_BASE_H
#define FILE_HANDLER_BASE_H
 
#include "bitrl/utils/io/file_formats.h"
#include "boost/noncopyable.hpp"
 
#include <string>
 
namespace bitrl
{
namespace utils
{
namespace io
{
template <typename HandlerType> class FileHandlerBase : private boost::noncopyable
{
  public:
    typedef HandlerType handler_type;
 
    virtual ~FileHandlerBase();
 
    FileFormats::Type get_type() const noexcept { return t_; }
 
    handler_type &get_file_stream() noexcept { return f_; }
 
    const handler_type &get_file_stream() const noexcept { return f_; }
 
    std::string get_filename() const noexcept { return file_name_; }
 
    bool is_open() const noexcept { return f_.is_open(); }
 
    virtual void close();
 
    virtual void open() = 0;
 
  protected:
    FileHandlerBase(const std::string &file_name, FileFormats::Type t);
 
    std::string file_name_;
 
    const FileFormats::Type t_;
 
    handler_type f_;
};
 
template <typename HandlerType>
FileHandlerBase<HandlerType>::FileHandlerBase(const std::string &file_name, FileFormats::Type t)
    : file_name_(file_name), t_(t)
{
}
 
template <typename HandlerType> FileHandlerBase<HandlerType>::~FileHandlerBase() { close(); }
 
template <typename HandlerType> void FileHandlerBase<HandlerType>::close()
{
 
    if (f_.is_open())
        f_.close();
}
 
} // namespace io
} // namespace utils
} // namespace bitrl
 
#endif // FILE_HANDLER_BASE_H