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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/>.
*
***********************************************************************/
// cspell:ignore NOLINTNEXTLINE
#include "id.hpp"
#include "demangler.hpp"
#include "object.hpp"
#include "tools/failed.hpp"
#include <boost/lexical_cast.hpp>
namespace sight::core
{
id::categorized_counter id::s_categorized_counter;
id::dictionary id::s_dictionary;
core::mt::read_write_mutex id::s_dictionary_mutex;
core::mt::mutex id::s_mutex_counter;
//-----------------------------------------------------------------------------
id::~id()
{
reset_id();
}
//-----------------------------------------------------------------------------
bool id::exist(type _id)
{
core::mt::read_lock lock(s_dictionary_mutex);
return id::is_id_found(_id);
}
//-----------------------------------------------------------------------------
bool id::is_id_found(type _id)
{
return s_dictionary.contains(_id);
}
//-----------------------------------------------------------------------------
bool id::has_id() const
{
core::mt::read_lock lock(m_id_mutex);
return !m_id.empty();
}
//-----------------------------------------------------------------------------
void id::set_id(type _new_id)
{
core::mt::write_lock lock(m_id_mutex);
this->add_id_in_dictionary(_new_id);
}
//-----------------------------------------------------------------------------
void id::add_id_in_dictionary(type _new_id) const
{
core::mt::write_lock lock(s_dictionary_mutex);
SIGHT_FATAL_IF("Try to set an existing fwID = " << _new_id, is_id_found(_new_id));
id::remove_id_from_dictionary(m_id);
// note we use a static cast for a down cast because we do not use the classical polymorphic approach
//m_dictionary[ newID ] = (static_cast< Object *>(this))->get_sptr();
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-cstyle-cast)
s_dictionary[_new_id] = ((object*) (this))->get_sptr();
m_id = _new_id;
}
//-----------------------------------------------------------------------------
id::type id::get_id(policy _policy) const
{
core::mt::read_to_write_lock lock(m_id_mutex);
if(m_id.empty()) // no id set
{
if(_policy == policy::generate)
{
type new_id = generate();
core::mt::upgrade_to_write_lock write_lock(lock);
this->add_id_in_dictionary(new_id);
}
else if(_policy == policy::empty)
{
/* nothing to do*/
}
else if(_policy == policy::must_exist)
{
throw core::tools::failed("id::get_id() no id set");
}
}
return m_id;
}
//------------------------------------------------------------------------------
id::type id::base_id(policy _policy) const
{
const auto& id = get_id(_policy);
if(const auto pos = id.find_last_of(s_separator); pos != std::string::npos)
{
return id.substr(pos + 1);
}
return id;
}
//-----------------------------------------------------------------------------
id::type id::generate() const
{
type new_id;
std::string prefix = this->get_classname();
do
{
core::mt::scoped_lock lock(s_mutex_counter);
new_id = prefix + "-" + std::to_string(s_categorized_counter[prefix]++);
}
while(exist(new_id));
return new_id;
}
//-----------------------------------------------------------------------------
object::sptr id::get_object(id::type _request_id)
{
core::mt::read_lock lock(s_dictionary_mutex);
auto it = s_dictionary.find(_request_id);
if(it != s_dictionary.end())
{
SIGHT_ASSERT("expired object in fwID::Dictionary for id=" + _request_id, !it->second.expired());
return it->second.lock();
}
return {};
}
//-----------------------------------------------------------------------------
void id::reset_id()
{
core::mt::write_lock lock(m_id_mutex);
core::mt::write_lock dico_lock(s_dictionary_mutex);
id::remove_id_from_dictionary(m_id);
m_id.clear();
}
//-----------------------------------------------------------------------------
void id::remove_id_from_dictionary(type _id)
{
if(!_id.empty())
{
s_dictionary.erase(_id);
}
}
//-----------------------------------------------------------------------------
} // namespace sight::core
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