Perspective.cpp

Go to the documentation of this file.

/*
 * This file is part of KnowRob, please consult
 * https://github.com/knowrob/knowrob for license details.
 */
 
#include "knowrob/semweb/Perspective.h"
#include "knowrob/integration/python/utils.h"
#include "knowrob/knowrob.h"
 
using namespace knowrob;
 
std::map<std::string_view, std::shared_ptr<Perspective>> Perspective::perspectiveMap_ =
    std::map<std::string_view, std::shared_ptr<Perspective>>();
 
Perspective::Perspective(std::string_view iri)
        : atom_(IRIAtom::Tabled(iri)) {}
 
std::shared_ptr<Perspective> Perspective::getEgoPerspective() {
    static std::shared_ptr<Perspective> egoPerspective;
    if (egoPerspective == nullptr) {
        egoPerspective = std::make_shared<Perspective>(GlobalSettings::egoIRI());
        perspectiveMap_[egoPerspective->iri()] = egoPerspective;
    }
    return egoPerspective;
}
 
bool Perspective::isEgoPerspective(std::string_view iri) {
    return iri.empty() || iri == GlobalSettings::egoIRI()->stringForm();
}
 
std::shared_ptr<Perspective> Perspective::get(std::string_view iri) {
    auto it = perspectiveMap_.find(iri);
    if (it == perspectiveMap_.end()) {
        auto agent = std::make_shared<Perspective>(iri);
        perspectiveMap_[iri] = agent;
        return agent;
    } else {
        return it->second;
    }
}
 
namespace knowrob::py {
    template<>
    void createType<Perspective>() {
        using namespace boost::python;
        class_<Perspective, std::shared_ptr<Perspective>>("Perspective", no_init)
                .def("iri", &Perspective::iri)
                .def("atom", &Perspective::atom)
                .def("getEgoPerspective", &Perspective::getEgoPerspective)
                .def("isEgoPerspective", &Perspective::isEgoPerspective)
                .def("get", &Perspective::get);
    }
}