StorageManager.h

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/*
 * This file is part of KnowRob, please consult
 * https://github.com/knowrob/knowrob for license details.
 */
 
#ifndef KNOWROB_STORAGE_MANAGER_H_
#define KNOWROB_STORAGE_MANAGER_H_
 
#include <map>
#include "knowrob/semweb/Vocabulary.h"
#include "knowrob/plugins/PluginManager.h"
#include "QueryableStorage.h"
 
namespace knowrob {
    class StorageManager : public PluginManager<Storage> {
    public:
        explicit StorageManager(const std::shared_ptr<Vocabulary> &vocabulary);
 
        ~StorageManager() override = default;
 
        auto &vocabulary() const { return vocabulary_; }
 
        const auto &persistent() const { return persistent_; }
 
        const auto &queryable() const { return queryable_; }
 
        void addPlugin(const std::shared_ptr<NamedBackend> &backend);
 
        // override PluginManager
        std::shared_ptr<NamedBackend> loadPlugin(const boost::property_tree::ptree &config) override;
 
        // override PluginManager
        std::shared_ptr<NamedBackend> addPlugin(std::string_view reasonerID, PluginLanguage language, const StoragePtr &backend) override;
 
    private:
        std::shared_ptr<Vocabulary> vocabulary_;
        std::map<std::string_view, QueryableBackendPtr> persistent_;
        std::map<std::string_view, QueryableBackendPtr> queryable_;
 
        void initBackend(const std::shared_ptr<NamedBackend> &definedKG);
    };
}
 
// a macro for static registration of a storage type.
// storage types registered with this macro are builtin storages that are not
// loaded from a plugin.
#define KNOWROB_BUILTIN_STORAGE(Name, Type) class Type ## _Registration{ static bool isRegistered; }; \
        bool Type ## _Registration::isRegistered = knowrob::PluginManager<knowrob::Storage>::addFactory<Type>(Name);
 
#endif //KNOWROB_STORAGE_MANAGER_H_