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/************************************************************************
*
* Copyright (C) 2009-2023 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 "data/factory/new.hpp"
#include "data/object.hpp"
#include <core/runtime/runtime.hpp>
#include <regex>
namespace sight::data::factory
{
//------------------------------------------------------------------------------
data::object::sptr make(const data::registry::key_t& _classname)
{
SIGHT_ASSERT("A classname must be specified", !_classname.empty());
const std::string classname = core::runtime::filter_id(_classname);
// 1. Try first to create the data
auto data = data::registry::get()->create(classname);
// 2. If that fails, try to load the library it belongs to
if(data == nullptr)
{
std::smatch match;
static const std::regex s_REG("(\\w*)::(?:(core|filter|geometry|io|navigation|ui|viz)::)?(\\w*)::.*");
if(std::regex_match(classname, match, s_REG) && match.size() >= 3)
{
const std::string libname = match[1].str() + '_' + (match[2].length() != 0 ? (match[2].str() + "_") : "")
+ match[3].str();
SIGHT_DEBUG("libname: " + libname);
const bool loaded = core::runtime::load_library(libname);
if(!loaded)
{
SIGHT_THROW("Cannot load library for data '" + classname + "'");
}
}
else
{
SIGHT_THROW("Cannot determine library name from data '" + classname + "'");
}
// 3. Re-try now that the library is loaded
data = data::registry::get()->create(classname);
}
return data;
}
} // namespace sight::data::factory
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