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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qt for Device Creation.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of The Qt Company Ltd nor the names of its
+** contributors may be used to endorse or promote products derived
+** from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "appparser.h"
+#include "applog.h"
+
+#include <QtCore/QFile>
+#include <QtCore/QJsonDocument>
+#include <QtCore/QJsonObject>
+
+Q_LOGGING_CATEGORY(apps, "launcher.apps")
+
+
+static QString doReadString(const QJsonValue& value, bool *ok)
+{
+ if (value.type() != QJsonValue::String) {
+ *ok = false;
+ return QString();
+ }
+ return value.toString();
+}
+
+static int doReadInt(const QJsonValue& value, bool *ok)
+{
+ if (value.type() != QJsonValue::Double) {
+ *ok = false;
+ return 0;
+ }
+ return value.toInt();
+}
+
+static QString readString(const QJsonObject& object, const QString& key, bool *ok)
+{
+ return doReadString(object.value(key), ok);
+}
+
+static QString readStringOptional(const QJsonObject& object, const QString& key, bool *ok)
+{
+ auto item = object.value(key);
+ if (item.type() == QJsonValue::Undefined)
+ return QString();
+ return doReadString(item, ok);
+}
+
+static int readInt(const QJsonObject& object, const QString& key, bool *ok)
+{
+ return doReadInt(object.value(key), ok);
+}
+
+AppEntry AppParser::parseData(const QByteArray& content, bool *ok)
+{
+ *ok = true;
+ QJsonParseError error;
+
+ QJsonDocument doc = QJsonDocument::fromJson(content, &error);
+ if (error.error != QJsonParseError::NoError) {
+ qCWarning(apps) << "Failed to parse json: " << error.errorString();
+ *ok = false;
+ return AppEntry::empty();
+ }
+
+ if (!doc.isObject()) {
+ qCWarning(apps) << "Parsed document is not an object";
+ *ok = false;
+ return AppEntry::empty();
+ }
+
+ auto root = doc.object();
+
+ QString type = readString(root, QStringLiteral("Type"), ok);
+ if (type != QStringLiteral("Application")) {
+ qCWarning(apps) << "Unknown type" << type;
+ *ok = false;
+ }
+
+ int version = readInt(root, QStringLiteral("Version"), ok);
+ if (version != 1) {
+ qCWarning(apps) << "Version number should be 1... Consider to fix that" << version;
+ }
+
+ QString iconName = readString(root, QStringLiteral("Icon"), ok);
+ QString appName = readString(root, QStringLiteral("Name"), ok);
+ QString executableName = readString(root, QStringLiteral("Exec"), ok);
+ QString executablePath = readStringOptional(root, QStringLiteral("Path"), ok);
+ if (!*ok)
+ return AppEntry::empty();
+
+ return AppEntry{iconName, appName, executableName, executablePath};
+}
+
+AppEntry AppParser::parseFile(const QString& fileName, bool *ok)
+{
+ qCDebug(apps) << "Trying to parse" << fileName;
+
+ QFile file(fileName);
+ if (!file.open(QFile::ReadOnly)) {
+ qCWarning(apps) << "Failed to open" << fileName;
+ *ok = false;
+ return AppEntry::empty();
+ }
+
+ auto entry = parseData(file.readAll(), ok);
+ file.close();
+ if (!*ok) {
+ qCWarning(apps) << "Failed to parse" << fileName;
+ return AppEntry::empty();
+ }
+ return entry;
+}