68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
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/*
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* =====================================================================================
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*
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* Filename: ResourceHandler.hpp
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*
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* Description:
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*
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* Created: 17/01/2018 19:16:19
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*
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* Author: Quentin Bazin, <quent42340@gmail.com>
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*
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* =====================================================================================
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*/
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#ifndef RESOURCEHANDLER_HPP_
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#define RESOURCEHANDLER_HPP_
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#include <map>
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#include <memory>
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#include "Exception.hpp"
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#include "IResourceLoader.hpp"
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#include "XMLFile.hpp"
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class ResourceHandler {
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public:
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template<typename T, typename... Args>
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T &add(const std::string &name, Args &&...args) {
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if(has(name)) {
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throw EXCEPTION("A resource of type", typeid(T).name(), "already exists with name:", name);
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}
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m_resources.emplace(name, std::make_shared<T>(std::forward<Args>(args)...));
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return get<T>(name);
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}
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bool has(const std::string &name) {
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return m_resources.count(name) == 1;
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}
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template<typename T>
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T &get(const std::string &name) {
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auto it = m_resources.find(name);
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if(it == m_resources.end()) {
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throw EXCEPTION("Unable to find resource with name:", name);
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}
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return *std::static_pointer_cast<T>(it->second);
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}
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template<typename ResourceLoader>
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static auto loadConfigFile(const char *xmlFilename) -> typename std::enable_if<std::is_base_of<IResourceLoader, ResourceLoader>::value>::type {
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ResourceLoader loader;
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loader.load(xmlFilename, getInstance());
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}
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static ResourceHandler &getInstance();
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static void setInstance(ResourceHandler &handler);
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private:
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static ResourceHandler *instance;
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std::map<std::string, std::shared_ptr<void>> m_resources;
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};
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#endif // RESOURCEHANDLER_HPP_
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