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/************************************************************************
*
* Copyright (C) 2009-2024 IRCAD France
* Copyright (C) 2012-2020 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "io/__/reader/array_reader.hpp"
#include <core/exception.hpp>
#include <fstream>
#include <iostream>
namespace sight::io::reader
{
//------------------------------------------------------------------------------
void array_reader::read()
{
std::filesystem::path file = this->get_file();
data::array::sptr array = this->get_concrete_object();
const auto dump_lock = array->dump_lock();
std::size_t array_size_in_bytes = array->resize(array->size());
char* buff = static_cast<char*>(array->buffer());
std::ifstream fs(file.string().c_str(), std::ios::in | std::ios::binary | std::ios::ate);
SIGHT_THROW_IF("Unable to read " << file, !fs.good());
std::streampos file_size = fs.tellg();
fs.seekg(0, std::ios::beg);
SIGHT_THROW_IF(
file << ": Bad file size, expected: " << array_size_in_bytes << ", was: " << file_size,
array_size_in_bytes - static_cast<std::size_t>(file_size) != 0
);
fs.read(buff, static_cast<std::streamsize>(array_size_in_bytes));
fs.close();
}
//------------------------------------------------------------------------------
std::string array_reader::extension() const
{
return ".raw";
}
//------------------------------------------------------------------------------
} // namespace sight::io::reader
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