102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
/*
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* Copyright 2016 - 2018 gtalent2@gmail.com
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <QJsonArray>
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#include <QJsonObject>
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#include <QJsonDocument>
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#include <ox/std/error.hpp>
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#include "json_err.hpp"
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namespace nostalgia {
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namespace studio {
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class JsonReader {
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private:
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QJsonObject &m_src;
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public:
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JsonReader(QJsonObject &obj);
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ox::Error setTypeInfo(const char*, int) { return OxError(0); };
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ox::Error field(QString fieldName, int *dest);
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ox::Error field(QString fieldName, bool *dest);
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ox::Error field(QString fieldName, double *dest);
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ox::Error field(QString fieldName, QString *dest);
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template<typename T>
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ox::Error field(QString fieldName, T *dest);
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template<typename T>
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ox::Error field(QString fieldName, QVector<T> *dest);
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private:
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ox::Error field(QJsonValueRef src, int *dest);
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ox::Error field(QJsonValueRef src, bool *dest);
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ox::Error field(QJsonValueRef src, double *dest);
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ox::Error field(QJsonValueRef src, QString *dest);
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template<typename T>
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ox::Error field(QJsonValueRef src, T *dest);
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};
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template<typename T>
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ox::Error JsonReader::field(QString fieldName, T *dest) {
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if (m_src.contains(fieldName)) {
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auto obj = m_src[fieldName].toObject();
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auto reader = JsonReader(obj);
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return model(&reader, dest);
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} else {
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return JSON_ERR_FIELD_MISSING;
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}
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};
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template<typename T>
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ox::Error JsonReader::field(QString fieldName, QVector<T> *dest) {
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ox::Error err = 0;
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if (m_src.contains(fieldName)) {
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auto a = m_src[fieldName].toArray();
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dest->resize(a.size());
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for (int i = 0; i < dest->size(); i++) {
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err |= field(a[i], &(*dest)[i]);
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}
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} else {
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err |= JSON_ERR_FIELD_MISSING;
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}
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return err;
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};
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template<typename T>
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ox::Error JsonReader::field(QJsonValueRef src, T *dest) {
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auto obj = src.toObject();
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auto reader = JsonReader(obj);
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return model(&reader, dest);
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}
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template<typename T>
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ox::Error readJson(QString json, T *dest) {
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auto obj = QJsonDocument::fromJson(json.toUtf8()).object();
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JsonReader rdr(obj);
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return model(&rdr, dest);
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}
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}
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}
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