PrefixRegistry.h

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/*
 * This file is part of KnowRob, please consult
 * https://github.com/knowrob/knowrob for license details.
 */
 
#ifndef KNOWROB_PREFIX_REGISTRY_H
#define KNOWROB_PREFIX_REGISTRY_H
 
#include <string>
#include <map>
#include <functional>
#include <optional>
 
namespace knowrob {
    using OptionalStringRef = std::optional<std::reference_wrapper<const std::string>>;
 
    class PrefixRegistry {
    public:
        static PrefixRegistry &get();
 
        static void registerPrefix(std::string_view prefix, std::string_view uri);
 
        static OptionalStringRef uriToAlias(std::string_view uri);
 
        static OptionalStringRef aliasToUri(std::string_view alias);
 
        static std::optional<std::string> createIRI(std::string_view alias, std::string_view entityName);
 
        static std::vector<std::string_view> getAliasesWithPrefix(std::string_view prefix);
 
        using Iterator = std::map<std::string, std::string>::iterator;
 
        Iterator begin() { return uriToAlias_.begin(); }
 
        Iterator end() { return uriToAlias_.end(); }
 
    private:
        std::map<std::string, std::string, std::less<>> uriToAlias_;
        std::map<std::string, std::string, std::less<>> aliasToURI_;
 
        PrefixRegistry();
 
        void registerPrefix_(std::string_view prefix, std::string_view uri);
    };
}
 
 
#endif //KNOWROB_PREFIX_REGISTRY_H