Differential D8583 Diff 22184 plugins/messageviewer/bodypartformatter/semantic/jsonlddocument.cpp

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plugins/messageviewer/bodypartformatter/semantic/jsonlddocument.cpp

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1		/*
2		Copyright (c) 2017 Volker Krause <vkrause@kde.org>
3
4		This library is free software; you can redistribute it and/or modify it
5		under the terms of the GNU Library General Public License as published by
6		the Free Software Foundation; either version 2 of the License, or (at your
7		option) any later version.
8
9		This library is distributed in the hope that it will be useful, but WITHOUT
10		ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11		FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12		License for more details.
13
14		You should have received a copy of the GNU Library General Public License
15		along with this library; see the file COPYING.LIB. If not, write to the
16		Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17		02110-1301, USA.
18		*/
19
20		#include "jsonlddocument.h"
21		#include "datatypes.h"
22		#include "semantic_debug.h"
23
24		#include <QDebug>
25		#include <QJsonArray>
26		#include <QJsonDocument>
27		#include <QJsonObject>
28		#include <QMetaProperty>
29
30		static QVariant createInstance(const QJsonObject &obj);
31
32		// Eurowings workarounds...
33		static const char* fallbackDateTimePattern[] = {
34		"yyyy-MM-dd HH:mm:ss",
35		"yyyy-MM-dd HH:mm",
36		"MM-dd-yyyy HH:mm" // yes, seriously ;(
37		};
38		static const auto fallbackDateTimePatternCount = sizeof(fallbackDateTimePattern) / sizeof(const char*);
39
40		static QVariant propertyValue(const QMetaProperty &prop, const QJsonValue &v)
41		{
42		switch (prop.type()) {
43		case QVariant::String:
44		return v.toString();
45		case QVariant::DateTime:
46		{
47		auto str = v.toString();
48		auto dt = QDateTime::fromString(str, Qt::ISODate);
49		for (unsigned int i = 0; i < fallbackDateTimePatternCount && dt.isNull(); ++i) {
50		dt = QDateTime::fromString(str, QString::fromLatin1(fallbackDateTimePattern[i]));
51		}
52		if (dt.isNull())
53		qCDebug(SEMANTIC_LOG) << "Datetime parsing failed for" << str;
54		return dt;
55		}
56		default:
57		break;
58		}
59		return createInstance(v.toObject());
60		}
61
62		template <typename T>
63		static QVariant createInstance(const QJsonObject &obj)
64		{
65		T t;
66		for (auto it = obj.begin(); it != obj.end(); ++it) {
67		if (it.key().startsWith(QLatin1Char('@')))
68		continue;
69		const auto idx = T::staticMetaObject.indexOfProperty(it.key().toLatin1());
70		if (idx < 0) {
71		qCDebug(SEMANTIC_LOG) << "property" << it.key() << "could not be set on object of type" << T::staticMetaObject.className();
72		continue;
73		}
74		const auto prop = T::staticMetaObject.property(idx);
75		const auto value = propertyValue(prop, it.value());
76		prop.writeOnGadget(&t, value);
77		}
78		return QVariant::fromValue(t);
79		}
80
81		#define MAKE_FACTORY(Class) \
82		if (type == QLatin1String(#Class)) \
83		return createInstance<Class>(obj)
84
85		static QVariant createInstance(const QJsonObject &obj)
86		{
87		const auto type = obj.value(QLatin1String("@type")).toString();
88		MAKE_FACTORY(Airline);
89		MAKE_FACTORY(Airport);
90		MAKE_FACTORY(FlightReservation);
91		MAKE_FACTORY(Flight);
92		MAKE_FACTORY(LodgingBusiness);
93		MAKE_FACTORY(LodgingReservation);
	mlaurentUnsubmitted Not Done coding style space before & not after mlaurent: coding style space before & not after
	vkrauseAuthorUnsubmitted Not Done Eventually I need to fix KDevelop to insert this correctly for new methods... vkrause: Eventually I need to fix KDevelop to insert this correctly for new methods...
	mlaurentUnsubmitted Not Done yep :) mlaurent: yep :)
94		MAKE_FACTORY(PostalAddress);
95		return {};
96		}
97
98		#undef MAKE_FACTORY
99
100		QVariantList JsonLdDocument::fromJson(const QJsonArray &array)
101		{
102		QVariantList l;
103		for (const auto &obj : array) {
104		const auto v = createInstance(obj.toObject());
105		if (!v.isNull())
106		l.push_back(v);
107		} return l;
108		}