jsonreader.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
#pragma once
 
// Local Includes
#include "rtti.h"
#include "path.h"
#include "deserializeresult.h"
#include "epropertyvalidationmode.h"
 
// External Includes
#include <utility/dllexport.h>
#include <rapidjson/pointer.h>
#include <string>
 
namespace nap
{
    namespace utility
    {
        class ErrorState;
    }
 
    namespace rtti
    {
        class Factory;
 
        struct NAPAPI ReadState
        {
            ReadState(EPropertyValidationMode propertyValidationMode, EPointerPropertyMode pointerPropertyMode, Factory& factory, DeserializeResult& result) :
                mPropertyValidationMode(propertyValidationMode),
                mPointerPropertyMode(pointerPropertyMode),
                mFactory(factory),
                mResult(result)
            { }
 
            EPropertyValidationMode         mPropertyValidationMode;
            EPointerPropertyMode            mPointerPropertyMode;
            Path                            mCurrentRTTIPath;
            Factory&                        mFactory;
            DeserializeResult&              mResult;
            std::unordered_set<std::string> mObjectIDs;
        };
 
 
        bool NAPAPI deserializeJSON(const std::string& json, EPropertyValidationMode propertyValidationMode, EPointerPropertyMode pointerPropertyMode, Factory& factory, DeserializeResult& result, utility::ErrorState& errorState);
 
        bool NAPAPI deserializeJSONFile(const std::string& path, EPropertyValidationMode propertyValidationMode, EPointerPropertyMode pointerPropertyMode, Factory& factory, DeserializeResult& result, utility::ErrorState& errorState);
 
        bool NAPAPI deserializeObjects(const rapidjson::Value& jsonArray, EPropertyValidationMode propertyValidationMode, EPointerPropertyMode pointerPropertyMode, Factory& factory, DeserializeResult& result, utility::ErrorState& errorState);
 
        std::unique_ptr<nap::rtti::Object> NAPAPI getObjectFromJSONFile(const std::string& path, EPropertyValidationMode propertyValidationMode, Factory& factory, utility::ErrorState& errorState);
 
        template<typename T>
        std::unique_ptr<T> getObjectFromJSONFile(const std::string& path, EPropertyValidationMode propertyValidationMode, Factory& factory, utility::ErrorState& errorState);
 
        bool NAPAPI JSONDocumentFromString(const std::string& json, rapidjson::Document& document, nap::utility::ErrorState& errorState);
 
 
        // Template Definitions
 
        template<typename T>
        std::unique_ptr<T> getObjectFromJSONFile(const std::string& path, EPropertyValidationMode propertyValidationMode, Factory& factory, utility::ErrorState& errorState)
        {
            auto obj = getObjectFromJSONFile(path, propertyValidationMode, factory, errorState);
            if (obj == nullptr)
            {
                errorState.fail("Failed to extract object of type: %s",
                    RTTI_OF(T).get_name().to_string().c_str());
                return{};
            }
            auto t = rtti_cast<T>(obj);
            if (t == nullptr)
                errorState.fail("Expected %s, got %s in file %s",
                    RTTI_OF(T).get_name().data(),
                    obj->get_type().get_name().data(),
                    path.c_str());
            return t;
        }
 
    } //< End Namespace nap
}