Alexandria 2.32.0
SDC-CH common library for the Euclid project
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ConfigManager.icpp
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1/*
2 * Copyright (C) 2012-2021 Euclid Science Ground Segment
3 *
4 * This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General
5 * Public License as published by the Free Software Foundation; either version 3.0 of the License, or (at your option)
6 * any later version.
7 *
8 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
9 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
10 * details.
11 *
12 * You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to
13 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
14 */
15
21
23#include "ElementsKernel/Exception.h"
24
25namespace Euclid {
26namespace Configuration {
27
28template <typename T>
30 static_assert(std::is_base_of<Configuration, T>::value, "T template parameter must inherit from Configuration");
32 throw Elements::Exception() << "Manager with id '" << m_id << "' is closed "
33 << "for configuration registration";
34 }
35 // If the configuration is already registered we do nothing
36 if (m_config_dictionary[{typeid(T)}] == nullptr) {
37 m_config_dictionary[{typeid(T)}].reset(new T{m_id});
38 }
39}
40
41template <typename T1, typename T2>
43 static_assert(std::is_base_of<Configuration, T1>::value, "T1 template parameter must inherit from Configuration");
44 static_assert(std::is_base_of<Configuration, T2>::value, "T2 template parameter must inherit from Configuration");
46 throw Elements::Exception() << "Manager with id '" << m_id << "' is closed "
47 << "for dependency registration";
48 }
49 m_dependency_map[typeid(T1)].emplace(typeid(T2));
50}
51
52template <typename T>
54 static_assert(std::is_base_of<Configuration, T>::value, "T template parameter must inherit from Configuration");
56 throw Elements::Exception() << "Method getConfiguration() cannot be called on "
57 << "uninitialized manager with id '" << m_id << "'";
58 }
59 if (m_config_dictionary.find(typeid(T)) == m_config_dictionary.end()) {
60 throw Elements::Exception() << "No configuration with type " << typeid(T).name() << " has been registered (manager with id '"
61 << m_id << "')";
62 }
63 return static_cast<T&>(*m_config_dictionary.at(typeid(T)));
64}
65
66} // namespace Configuration
67} // namespace Euclid
void registerConfiguration()
Registers a Configuration to the manager.
void registerDependency()
Registers a dependency between two configurations.
std::map< std::type_index, std::unique_ptr< Configuration > > m_config_dictionary
T & getConfiguration()
Returns a reference to the requested configuration.
std::map< std::type_index, std::set< std::type_index > > m_dependency_map
Superclass of all configuration classes.