- class FactoryManager {
- public:
- template <typename ProductCreator, typename AbstractProduct>
- void Register(const std::string& name) {
- if (IsRegistered(name)) {
- LOGE("failed to register %s, already registered.", name.c_str());
- NBASSERT(0);
- }
- /*LDRA_NOANALYSIS*/
- producers_[name] = []() -> AbstractProduct* {
- return new ProductCreator();
- };
- /*LDRA_ANALYSIS*/
- }
- template <typename AbstractProduct>
- AbstractProduct* CreateObject(const std::string& name) {
- if (IsRegistered(name)) {
- return reinterpret_cast<AbstractProduct*>(producers_[name]());
- } else {
- return nullptr;
- }
- }
- bool IsRegistered(const std::string& name) {
- return producers_.count(name) > 0;
- }
- private:
- std::unordered_map<std::string, std::function<void* ()>> producers_;
- DECLARE_SINGLETON(FactoryManager)
- };
| 
楼主
